'use strict';

exports = module.exports = {
    getServiceConfig,

    listServices,
    getServiceStatus,
    getServiceLogs,

    configureService,
    restartService,
    rebuildService,

    startAppServices,
    stopAppServices,

    startServices,

    setupAddons,
    teardownAddons,
    backupAddons,
    restoreAddons,
    clearAddons,
    checkAddonsSupport,

    getEnvironment,
    getContainerNamesSync,

    getContainerDetails,

    // exported only for apptask.js to update immich pgvectors extension - can be removed later
    _postgreSqlNames: postgreSqlNames,

    SERVICE_STATUS_STARTING: 'starting',  // container up, waiting for healthcheck
    SERVICE_STATUS_ACTIVE: 'active',
    SERVICE_STATUS_STOPPED: 'stopped',
    SERVICE_STATUS_DISABLED: 'disabled', // feature not supported
};

const addonConfigs = require('./addonconfigs.js'),
    apps = require('./apps.js'),
    assert = require('assert'),
    blobs = require('./blobs.js'),
    BoxError = require('./boxerror.js'),
    constants = require('./constants.js'),
    crypto = require('crypto'),
    dashboard = require('./dashboard.js'),
    debug = require('debug')('box:services'),
    dig = require('./dig.js'),
    docker = require('./docker.js'),
    eventlog = require('./eventlog.js'),
    fs = require('fs'),
    hat = require('./hat.js'),
    http = require('http'),
    infra = require('./infra_version.js'),
    logs = require('./logs.js'),
    mail = require('./mail.js'),
    mailServer = require('./mailserver.js'),
    oidc = require('./oidc.js'),
    os = require('os'),
    path = require('path'),
    paths = require('./paths.js'),
    { pipeline } = require('stream'),
    promiseRetry = require('./promise-retry.js'),
    safe = require('safetydance'),
    settings = require('./settings.js'),
    sftp = require('./sftp.js'),
    shell = require('./shell.js'),
    superagent = require('superagent');

const NOOP = async function (/*app, options*/) {};
const RMADDONDIR_CMD = path.join(__dirname, 'scripts/rmaddondir.sh');
const RESTART_SERVICE_CMD = path.join(__dirname, 'scripts/restartservice.sh');
const CLEARVOLUME_CMD = path.join(__dirname, 'scripts/clearvolume.sh');
const MKDIRVOLUME_CMD = path.join(__dirname, 'scripts/mkdirvolume.sh');

// setup can be called multiple times for the same app (configure crash restart) and existing data must not be lost
// teardown is destructive. app data stored with the addon is lost
// addons have 1-1 mapping with the manifest
const ADDONS = {
    turn: {
        setup: setupTurn,
        teardown: teardownTurn,
        backup: NOOP,
        restore: NOOP,
        getDynamicEnvironment: NOOP,
        clear: NOOP,
    },
    email: {
        setup: setupEmail,
        teardown: teardownEmail,
        backup: NOOP,
        restore: setupEmail,
        getDynamicEnvironment: NOOP,
        clear: NOOP,
    },
    ldap: {
        setup: setupLdap,
        teardown: teardownLdap,
        backup: NOOP,
        restore: setupLdap,
        getDynamicEnvironment: NOOP,
        clear: NOOP,
    },
    localstorage: {
        setup: setupLocalStorage,
        teardown: teardownLocalStorage,
        backup: NOOP, // no backup because it's already inside app data
        restore: NOOP,
        getDynamicEnvironment: NOOP,
        clear: clearLocalStorage,
    },
    mongodb: {
        setup: setupMongoDb,
        teardown: teardownMongoDb,
        backup: backupMongoDb,
        restore: restoreMongoDb,
        getDynamicEnvironment: NOOP,
        clear: clearMongodb,
    },
    mysql: {
        setup: setupMySql,
        teardown: teardownMySql,
        backup: backupMySql,
        restore: restoreMySql,
        getDynamicEnvironment: NOOP,
        clear: clearMySql,
    },
    postgresql: {
        setup: setupPostgreSql,
        teardown: teardownPostgreSql,
        backup: backupPostgreSql,
        restore: restorePostgreSql,
        getDynamicEnvironment: NOOP,
        clear: clearPostgreSql,
    },
    proxyAuth: {
        setup: setupProxyAuth,
        teardown: teardownProxyAuth,
        backup: NOOP,
        restore: NOOP,
        getDynamicEnvironment: NOOP,
        clear: NOOP
    },
    recvmail: {
        setup: setupRecvMail,
        teardown: teardownRecvMail,
        backup: NOOP,
        restore: setupRecvMail,
        getDynamicEnvironment: NOOP,
        clear: NOOP,
    },
    redis: {
        setup: setupRedis,
        teardown: teardownRedis,
        backup: backupRedis,
        restore: restoreRedis,
        getDynamicEnvironment: NOOP,
        clear: clearRedis,
    },
    sendmail: {
        setup: setupSendMail,
        teardown: teardownSendMail,
        backup: NOOP,
        restore: setupSendMail,
        getDynamicEnvironment: NOOP,
        clear: NOOP,
    },
    scheduler: {
        setup: NOOP,
        teardown: NOOP,
        backup: NOOP,
        restore: NOOP,
        getDynamicEnvironment: NOOP,
        clear: NOOP,
    },
    docker: {
        setup: setupDocker,
        teardown: teardownDocker,
        backup: NOOP,
        restore: NOOP,
        getDynamicEnvironment: NOOP,
        clear: NOOP,
    },
    tls: {
        setup: setupTls,
        teardown: teardownTls,
        backup: NOOP,
        restore: NOOP,
        getDynamicEnvironment: NOOP,
        clear: NOOP,
    },
    oauth: { // kept for backward compatibility. keep teardown for uninstall to work
        setup: NOOP,
        teardown: teardownOauth,
        backup: NOOP,
        restore: NOOP,
        getDynamicEnvironment: NOOP,
        clear: NOOP,
    },
    oidc: {
        setup: setupOidc,
        teardown: teardownOidc,
        backup: NOOP,
        restore: setupOidc,
        getDynamicEnvironment: getDynamicEnvironmentOidc,
        clear: NOOP,
    },
};

// services are actual containers that are running. addons are the concepts requested by app
const SERVICES = {
    turn: {
        status: statusTurn,
        restart: docker.restartContainer.bind(null, 'turn'),
        defaultMemoryLimit: 256 * 1024 * 1024
    },
    mail: {
        status: containerStatus.bind(null, 'mail', 'CLOUDRON_MAIL_TOKEN'),
        restart: mailServer.restart,
        defaultMemoryLimit: mailServer.DEFAULT_MEMORY_LIMIT
    },
    mongodb: {
        status: statusMongodb,
        restart: restartMongodb,
        defaultMemoryLimit: (1 + Math.round(os.totalmem()/(1024*1024*1024)/4)) * 256 * 1024 * 1024
    },
    mysql: {
        status: containerStatus.bind(null, 'mysql', 'CLOUDRON_MYSQL_TOKEN'),
        restart: docker.restartContainer.bind(null, 'mysql'),
        defaultMemoryLimit: (1 + Math.round(os.totalmem()/(1024*1024*1024)/4)) * 256 * 1024 * 1024
    },
    postgresql: {
        status: containerStatus.bind(null, 'postgresql', 'CLOUDRON_POSTGRESQL_TOKEN'),
        restart: docker.restartContainer.bind(null, 'postgresql'),
        defaultMemoryLimit: (1 + Math.round(os.totalmem()/(1024*1024*1024)/4)) * 256 * 1024 * 1024
    },
    docker: {
        status: statusDocker,
        restart: restartDocker,
        defaultMemoryLimit: 0
    },
    unbound: {
        status: statusUnbound,
        restart: restartUnbound,
        defaultMemoryLimit: 0
    },
    sftp: {
        status: sftp.status,
        restart: docker.restartContainer.bind(null, 'sftp'),
        defaultMemoryLimit: sftp.DEFAULT_MEMORY_LIMIT
    },
    graphite: {
        status: statusGraphite,
        restart: restartGraphite,
        defaultMemoryLimit: 256 * 1024 * 1024
    },
    nginx: {
        status: statusNginx,
        restart: restartNginx,
        defaultMemoryLimit: 0
    }
};

const APP_SERVICES = {
    redis: {
        status: (instance, done) => containerStatus(`redis-${instance}`, 'CLOUDRON_REDIS_TOKEN', done),
        start: (instance, done) => docker.startContainer(`redis-${instance}`, done),
        stop: (instance, done) => docker.stopContainer(`redis-${instance}`, done),
        restart: (instance, done) => docker.restartContainer(`redis-${instance}`, done),
        defaultMemoryLimit: 256 * 1024 * 1024
    }
};

function requiresUpgrade(existingObjOrImageName, currentImageName) {
    // we removed image.tag. remove this after 7.6
    const existingTag = typeof existingObjOrImageName === 'object' ? existingObjOrImageName.tag : existingObjOrImageName;
    let etag = docker.parseImageName(existingTag), ctag = docker.parseImageName(currentImageName);

    return etag.version.major !== ctag.version.major;
}

// paths for dumps
function dumpPath(addon, appId) {
    switch (addon) {
    case 'postgresql': return path.join(paths.APPS_DATA_DIR, appId, 'postgresqldump');
    case 'mysql': return path.join(paths.APPS_DATA_DIR, appId, 'mysqldump');
    case 'mongodb': return path.join(paths.APPS_DATA_DIR, appId, 'mongodbdump');
    case 'redis': return path.join(paths.APPS_DATA_DIR, appId, 'dump.rdb');
    }
}

async function getContainerDetails(containerName, tokenEnvName) {
    assert.strictEqual(typeof containerName, 'string');
    assert.strictEqual(typeof tokenEnvName, 'string');

    const result = await docker.inspect(containerName);

    const ip = safe.query(result, 'NetworkSettings.Networks.cloudron.IPAddress', null);
    if (!ip) throw new BoxError(BoxError.INACTIVE, `Error getting IP of ${containerName} service`);

    // extract the cloudron token for auth
    const env = safe.query(result, 'Config.Env', null);
    if (!env) throw new BoxError(BoxError.DOCKER_ERROR, `Error inspecting environment of ${containerName} service`);
    const tmp = env.find(function (e) { return e.indexOf(tokenEnvName) === 0; });
    if (!tmp) throw new BoxError(BoxError.DOCKER_ERROR, `Error getting token of ${containerName} service`);
    const token = tmp.slice(tokenEnvName.length + 1); // +1 for the = sign
    if (!token) throw new BoxError(BoxError.DOCKER_ERROR, `Error getting token of ${containerName} service`);

    return { ip: ip, token: token, state: result.State };
}

async function containerStatus(containerName, tokenEnvName) {
    assert.strictEqual(typeof containerName, 'string');
    assert.strictEqual(typeof tokenEnvName, 'string');

    const [error, addonDetails] = await safe(getContainerDetails(containerName, tokenEnvName));
    if (error && (error.reason === BoxError.NOT_FOUND || error.reason === BoxError.INACTIVE)) return { status: exports.SERVICE_STATUS_STOPPED };
    if (error) throw error;

    const [networkError, response] = await safe(superagent.get(`http://${addonDetails.ip}:3000/healthcheck?access_token=${addonDetails.token}`)
        .timeout(20000)
        .ok(() => true));

    if (networkError) return { status: exports.SERVICE_STATUS_STARTING, error: `Error waiting for ${containerName}: ${networkError.message}` };
    if (response.status !== 200 || !response.body.status) return { status: exports.SERVICE_STATUS_STARTING, error: `Error waiting for ${containerName}. Status code: ${response.statusCode} message: ${response.body.message}` };

    const result = await docker.memoryUsage(containerName);
    const stats = result.memory_stats || { usage: 0, limit: 1 };

    return {
        status: addonDetails.state.Running ? exports.SERVICE_STATUS_ACTIVE : exports.SERVICE_STATUS_STOPPED,
        memoryUsed: stats.usage,
        memoryPercent: parseInt(100 * stats.usage / stats.limit),
        healthcheck: response.body
    };
}

async function listServices() {
    const serviceIds = Object.keys(SERVICES);

    const result = await apps.list();
    for (let app of result) {
        if (app.manifest.addons?.redis && app.enableRedis) serviceIds.push(`redis:${app.id}`);
    }

    return serviceIds;
}

async function getConfig() {
    return await settings.getJson(settings.SERVICES_CONFIG_KEY) || {};
}

async function getServiceConfig(id) {
    assert.strictEqual(typeof id, 'string');

    const [name, instance] = id.split(':');
    if (!instance) {
        const servicesConfig = await getConfig();
        return servicesConfig[name] || {};
    }

    const app = await apps.get(instance);
    if (!app) throw new BoxError(BoxError.NOT_FOUND, 'App not found');

    return app.servicesConfig[name] || {};
}

async function getServiceStatus(id) {
    assert.strictEqual(typeof id, 'string');

    const [name, instance ] = id.split(':');
    let containerStatusFunc, service;

    if (instance) {
        service = APP_SERVICES[name];
        if (!service) throw new BoxError(BoxError.NOT_FOUND, 'Service not found');
        containerStatusFunc = service.status.bind(null, instance);
    } else if (SERVICES[name]) {
        service = SERVICES[name];
        containerStatusFunc = service.status;
    } else {
        throw new BoxError(BoxError.NOT_FOUND, 'Service not found');
    }

    const result = {
        name: name,
        status: null,
        memoryUsed: 0,
        memoryPercent: 0,
        error: null,
        healthcheck: null,
        config: {}
    };

    const status = await containerStatusFunc();
    result.status = status.status;
    result.memoryUsed = status.memoryUsed;
    result.memoryPercent = status.memoryPercent;
    result.defaultMemoryLimit = service.defaultMemoryLimit;
    result.error = status.error || null;
    result.healthcheck = status.healthcheck || null;

    result.config = await getServiceConfig(id);

    if (!result.config.memoryLimit && service.defaultMemoryLimit) {
        result.config.memoryLimit = service.defaultMemoryLimit;
    }

    return result;
}

async function configureService(id, data, auditSource) {
    assert.strictEqual(typeof id, 'string');
    assert.strictEqual(typeof data, 'object');
    assert.strictEqual(typeof auditSource, 'object');

    const [name, instance ] = id.split(':');
    let needsRebuild = false;

    if (instance) {
        if (!APP_SERVICES[name]) throw new BoxError(BoxError.NOT_FOUND, 'Service not found');

        const app = await apps.get(instance);
        if (!app) throw new BoxError(BoxError.NOT_FOUND, 'App not found');

        const servicesConfig = app.servicesConfig;
        needsRebuild = servicesConfig[name]?.recoveryMode != data.recoveryMode;
        servicesConfig[name] = data;

        await apps.update(instance, { servicesConfig });
    } else if (SERVICES[name]) {
        const servicesConfig = await getConfig();
        needsRebuild = servicesConfig[name]?.recoveryMode != data.recoveryMode; // intentional != since 'recoveryMode' may or may not be there

        servicesConfig[name] = data;

        await settings.setJson(settings.SERVICES_CONFIG_KEY, servicesConfig);
    } else {
        throw new BoxError(BoxError.NOT_FOUND, 'No such service');
    }

    debug(`configureService: ${id} rebuild=${needsRebuild}`);

    // do this in background
    if (needsRebuild) {
        safe(rebuildService(id, auditSource), { debug });
    } else {
        safe(applyMemoryLimit(id), { debug });
    }

    await eventlog.add(eventlog.ACTION_SERVICE_CONFIGURE, auditSource, { id, data });
}

async function getServiceLogs(id, options) {
    assert.strictEqual(typeof id, 'string');
    assert(options && typeof options === 'object');

    const [name, instance ] = id.split(':');

    if (instance) {
        if (!APP_SERVICES[name]) throw new BoxError(BoxError.NOT_FOUND, 'Service not found');
    } else if (!SERVICES[name]) {
        throw new BoxError(BoxError.NOT_FOUND, 'Service not found');
    }

    debug(`getServiceLogs: getting logs for ${name}`);

    let cp;

    if (name === 'docker' || name === 'unbound') {
        cp = logs.journalctl(name, options);
    } else if (name === 'nginx') {
        cp = logs.tail(['/var/log/nginx/access.log', '/var/log/nginx/error.log'], { lines: options.lines, follow: options.follow });
    } else {
        const containerName = APP_SERVICES[name] ? `${name}-${instance}` : name;
        cp = logs.tail([path.join(paths.LOG_DIR, containerName, 'app.log')], { lines: options.lines, follow: options.follow });
    }

    const logStream = new logs.LogStream({ format: options.format || 'json', source: name });
    logStream.on('close', () => cp.terminate()); // the caller has to call destroy() on logStream. destroy() of Transform emits 'close'

    cp.stdout.pipe(logStream);

    return logStream;
}

async function rebuildService(id, auditSource) {
    assert.strictEqual(typeof id, 'string');
    assert.strictEqual(typeof auditSource, 'object');

    // this attempts to recreate the service docker container if they don't exist but platform infra version is unchanged
    // passing an infra version of 'none' will not attempt to purge existing data
    const [name, instance] = id.split(':');

    switch (name) {
    case 'turn':
        await startTurn({ version: 'none' });
        break;
    case 'mongodb':
        await startMongodb({ version: 'none' });
        break;
    case 'postgresql':
        await startPostgresql({ version: 'none' });
        break;
    case 'mysql':
        await startMysql({ version: 'none' });
        break;
    case 'sftp':
        await sftp.start({ version: 'none' });
        break;
    case 'graphite':
        await startGraphite({ version: 'none' });
        break;
    case 'mail':
        await mailServer.start({ version: 'none' });
        break;
    case 'redis': {
        await safe(shell.exec('removeRedis', `docker rm -f redis-${instance}`, {})); // ignore error
        const app = await apps.get(instance);
        if (app) await setupRedis(app, app.manifest.addons.redis); // starts the container
        break;
    }
    default:
        // nothing to rebuild for now.
    }

    safe(applyMemoryLimit(id), { debug }); // do this in background. ok to fail

    await eventlog.add(eventlog.ACTION_SERVICE_REBUILD, auditSource, { id });
}

async function restartService(id, auditSource) {
    assert.strictEqual(typeof id, 'string');
    assert.strictEqual(typeof auditSource, 'object');

    const [name, instance ] = id.split(':');

    if (instance) {
        if (!APP_SERVICES[name]) throw new BoxError(BoxError.NOT_FOUND, 'Service not found');

        await APP_SERVICES[name].restart(instance);
    } else if (SERVICES[name]) {
        await SERVICES[name].restart();
    } else {
        throw new BoxError(BoxError.NOT_FOUND, 'Service not found');
    }

    await eventlog.add(eventlog.ACTION_SERVICE_RESTART, auditSource, { id });
}

// in the future, we can refcount and lazy start global services
async function startAppServices(app) {
    assert.strictEqual(typeof app, 'object');

    const instance = app.id;
    for (const addon of Object.keys(app.manifest.addons || {})) {
        if (!(addon in APP_SERVICES)) continue;

        const [error] = await safe(APP_SERVICES[addon].start(instance)); // assume addons name is service name
        // error ignored because we don't want "start app" to error. use can fix it from Services
        if (error) debug(`startAppServices: ${addon}:${instance}. %o`, error);
    }
}

// in the future, we can refcount and stop global services as well
async function stopAppServices(app) {
    assert.strictEqual(typeof app, 'object');

    const instance = app.id;
    for (const addon of Object.keys(app.manifest.addons || {})) {
        if (!(addon in APP_SERVICES)) continue;

        const [error] = await safe(APP_SERVICES[addon].stop(instance)); // assume addons name is service name
        // error ignored because we don't want "start app" to error. use can fix it from Services
        if (error) debug(`stopAppServices: ${addon}:${instance}. %o`, error);
    }
}

async function waitForContainer(containerName, tokenEnvName) {
    assert.strictEqual(typeof containerName, 'string');
    assert.strictEqual(typeof tokenEnvName, 'string');

    debug(`Waiting for ${containerName}`);

    const result = await getContainerDetails(containerName, tokenEnvName);

    await promiseRetry({ times: 20, interval: 15000, debug }, async () => {
        const [networkError, response] = await safe(superagent.get(`http://${result.ip}:3000/healthcheck?access_token=${result.token}`)
            .timeout(20000)
            .ok(() => true));

        if (networkError) throw new BoxError(BoxError.ADDONS_ERROR, `Network error waiting for ${containerName}: ${networkError.message}`);
        if (response.status !== 200 || !response.body.status) throw new BoxError(BoxError.ADDONS_ERROR, `Error waiting for ${containerName}. Status code: ${response.status} message: ${response.body.message}`);
    });
}

async function setupAddons(app, addons) {
    assert.strictEqual(typeof app, 'object');
    assert(!addons || typeof addons === 'object');

    if (!addons) return;

    debug('setupAddons: Setting up %j', Object.keys(addons));

    for (const addon of Object.keys(addons)) {
        if (!(addon in ADDONS)) throw new BoxError(BoxError.NOT_FOUND, `No such addon: ${addon}`);

        debug(`setupAddons: setting up addon ${addon} with options ${JSON.stringify(addons[addon])}`);

        await ADDONS[addon].setup(app, addons[addon]);
    }
}

async function teardownAddons(app, addons) {
    assert.strictEqual(typeof app, 'object');
    assert(!addons || typeof addons === 'object');

    if (!addons) return;

    debug('teardownAddons: Tearing down %j', Object.keys(addons));

    for (const addon of Object.keys(addons)) {
        if (!(addon in ADDONS)) throw new BoxError(BoxError.NOT_FOUND, `No such addon: ${addon}`);

        debug(`teardownAddons: Tearing down addon ${addon} with options ${JSON.stringify(addons[addon])}`);

        await ADDONS[addon].teardown(app, addons[addon]);
    }
}

async function backupAddons(app, addons) {
    assert.strictEqual(typeof app, 'object');
    assert(!addons || typeof addons === 'object');

    debug('backupAddons');

    if (!addons) return;

    debug('backupAddons: backing up %j', Object.keys(addons));

    for (const addon of Object.keys(addons)) {
        if (!(addon in ADDONS)) throw new BoxError(BoxError.NOT_FOUND, `No such addon: ${addon}`);

        await ADDONS[addon].backup(app, addons[addon]);
    }
}

async function clearAddons(app, addons) {
    assert.strictEqual(typeof app, 'object');
    assert(!addons || typeof addons === 'object');

    debug('clearAddons');

    if (!addons) return;

    debug('clearAddons: clearing %j', Object.keys(addons));

    for (const addon of Object.keys(addons)) {
        if (!(addon in ADDONS)) throw new BoxError(BoxError.NOT_FOUND, `No such addon: ${addon}`);

        await ADDONS[addon].clear(app, addons[addon]);
    }
}

async function restoreAddons(app, addons) {
    assert.strictEqual(typeof app, 'object');
    assert(!addons || typeof addons === 'object');

    debug('restoreAddons');

    if (!addons) return;

    debug('restoreAddons: restoring %j', Object.keys(addons));

    for (const addon of Object.keys(addons)) {
        if (!(addon in ADDONS)) throw new BoxError(BoxError.NOT_FOUND, `No such addon: ${addon}`);

        await ADDONS[addon].restore(app, addons[addon]);
    }
}

async function importAppDatabase(app, addon) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof addon, 'string');

    if (!(addon in ADDONS)) throw new BoxError(BoxError.NOT_FOUND, `No such addon: ${addon}`);

    await ADDONS[addon].setup(app, app.manifest.addons[addon]);
    await ADDONS[addon].clear(app, app.manifest.addons[addon]); // clear in case we crashed in a restore
    await ADDONS[addon].restore(app, app.manifest.addons[addon]);
}

async function importDatabase(addon) {
    assert.strictEqual(typeof addon, 'string');

    debug(`importDatabase: Importing ${addon}`);

    const allApps = await apps.list();

    for (const app of allApps) {
        if (!(addon in app.manifest.addons)) continue; // app doesn't use the addon

        debug(`importDatabase: Importing addon ${addon} of app ${app.id}`);

        const [error] = await safe(importAppDatabase(app, addon));
        if (!error) continue;

        debug(`importDatabase: Error importing ${addon} of app ${app.id}. Marking as errored. %o`, error);
        // FIXME: there is no way to 'repair' if we are here. we need to make a separate apptask that re-imports db
        // not clear, if repair workflow should be part of addon or per-app
        await safe(apps.update(app.id, { installationState: apps.ISTATE_ERROR, error: { message: error.message } }));
    }

    safe.fs.unlinkSync(path.join(paths.ADDON_CONFIG_DIR, `exported-${addon}`)); // clean up for future migrations
}

async function exportDatabase(addon) {
    assert.strictEqual(typeof addon, 'string');

    debug(`exportDatabase: Exporting ${addon}`);

    if (fs.existsSync(path.join(paths.ADDON_CONFIG_DIR, `exported-${addon}`))) {
        debug(`exportDatabase: Already exported addon ${addon} in previous run`);
        return;
    }

    const allApps = await apps.list();

    for (const app of allApps) {
        if (!app.manifest.addons || !(addon in app.manifest.addons)) continue; // app doesn't use the addon
        if (app.installationState === apps.ISTATE_ERROR) continue; // missing db causes crash in old app addon containers

        debug(`exportDatabase: Exporting addon ${addon} of app ${app.id}`);

        const [error] = await safe(ADDONS[addon].backup(app, app.manifest.addons[addon]));
        if (error) {
            debug(`exportDatabase: Error exporting ${addon} of app ${app.id}. %o`, error);
            // for errored apps, we can ignore if export had an error
            if (app.installationState === apps.ISTATE_ERROR) continue;
            throw error;
        }
    }

    safe.fs.writeFileSync(path.join(paths.ADDON_CONFIG_DIR, `exported-${addon}`), '', 'utf8');
    if (safe.error) throw BoxError(BoxError.FS_ERROR, 'Error writing export checkpoint file');
    // note: after this point, we are restart safe. it's ok if the box code crashes at this point
    await shell.exec(`exportDatabase - remove${addon}`, `docker rm -f ${addon}`, {}); // what if db writes something when quitting ...
    await shell.promises.sudo(`exportDatabase - removeAddonDir${addon}`, [ RMADDONDIR_CMD, addon ], {}); // ready to start afresh
}

async function applyMemoryLimit(id) {
    assert.strictEqual(typeof id, 'string');

    const [name, instance] = id.split(':');
    let containerName, memoryLimit;
    const serviceConfig = await getServiceConfig(id);

    if (instance) {
        if (!APP_SERVICES[name]) throw new BoxError(BoxError.NOT_FOUND, 'Service not found');

        containerName = `${name}-${instance}`;
        memoryLimit = serviceConfig && serviceConfig.memoryLimit ? serviceConfig.memoryLimit : APP_SERVICES[name].defaultMemoryLimit;
    } else if (SERVICES[name]) {
        containerName = name;
        memoryLimit = serviceConfig && serviceConfig.memoryLimit ? serviceConfig.memoryLimit : SERVICES[name].defaultMemoryLimit;
    } else {
        throw new BoxError(BoxError.NOT_FOUND, 'No such service');
    }

    debug(`applyMemoryLimit: ${containerName} ${JSON.stringify(serviceConfig)}`);

    await docker.update(containerName, memoryLimit);
}

async function startServices(existingInfra) {
    assert.strictEqual(typeof existingInfra, 'object');

    const startFuncs = [];

    // always start addons on any infra change, regardless of minor or major update
    if (existingInfra.version !== infra.version) {
        debug(`startServices: ${existingInfra.version} -> ${infra.version}. starting all services`);
        startFuncs.push(
            mailServer.start, // start this first to reduce email downtime
            startTurn,
            startMysql,
            startPostgresql,
            startMongodb,
            startRedis,
            startGraphite,
            sftp.start,
        );
    } else {
        assert.strictEqual(typeof existingInfra.images, 'object');

        if (infra.images.mail !== existingInfra.images.mail) startFuncs.push(mailServer.start);  // start this first to reduce email downtime
        if (infra.images.turn !== existingInfra.images.turn) startFuncs.push(startTurn);
        if (infra.images.mysql !== existingInfra.images.mysql) startFuncs.push(startMysql);
        if (infra.images.postgresql !== existingInfra.images.postgresql) startFuncs.push(startPostgresql);
        if (infra.images.mongodb !== existingInfra.images.mongodb) startFuncs.push(startMongodb);
        if (infra.images.redis !== existingInfra.images.redis) startFuncs.push(startRedis);
        if (infra.images.graphite !== existingInfra.images.graphite) startFuncs.push(startGraphite);
        if (infra.images.sftp !== existingInfra.images.sftp) startFuncs.push(sftp.start);

        debug('startServices: existing infra. incremental service create %j', startFuncs.map(function (f) { return f.name; }));
    }

    for (const func of startFuncs) {
        await func(existingInfra);
    }

    // we always start db containers with unlimited memory. we then scale them down per configuration
    for (const id of [ 'mysql', 'postgresql', 'mongodb' ]) {
        safe(applyMemoryLimit(id), { debug }); // no waiting. and it's ok if applying service configs fails
    }
}

async function getEnvironment(app) {
    assert.strictEqual(typeof app, 'object');

    // contains values for environment from addonConfigs db
    const result = await addonConfigs.getByAppId(app.id);

    // convert result to object to ensure unique env names if we overwrite static ones from the previously stored value in addonconfigs
    let env = {};
    result.forEach(e => { env[e.name] = e.value; });

    // get environment configs which are dynamic e.g generated based on dashboard domain and are not stored in db
    for (let addon in (app.manifest.addons || {})) {
        const configs = await ADDONS[addon].getDynamicEnvironment(app, {});
        if (configs) env = { ...env, ...configs };
    }

    return Object.keys(env).map(function (e) { return e + '=' + env[e]; });
}

function getContainerNamesSync(app, addons) {
    assert.strictEqual(typeof app, 'object');
    assert(!addons || typeof addons === 'object');

    let names = [];

    if (!addons) return names;

    for (const addon in addons) {
        switch (addon) {
        case 'scheduler':
            // names here depend on how scheduler.js creates containers
            names = names.concat(Object.keys(addons.scheduler).map(function (taskName) { return app.id + '-' + taskName; }));
            break;
        default: break;
        }
    }

    return names;
}

async function setupLocalStorage(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    debug('setupLocalStorage');

    const volumeDataDir = await apps.getStorageDir(app);

    const [error] = await safe(shell.promises.sudo('createVolume', [ MKDIRVOLUME_CMD, volumeDataDir ], {}));
    if (error) throw new BoxError(BoxError.FS_ERROR, `Error creating app storage data dir: ${error.message}`);
}

async function clearLocalStorage(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    debug('clearLocalStorage');

    const volumeDataDir = await apps.getStorageDir(app);
    const [error] = await shell.promises.sudo('clearVolume', [ CLEARVOLUME_CMD, 'clear', volumeDataDir ], {});
    if (error) throw new BoxError(BoxError.FS_ERROR, error);
}

async function teardownLocalStorage(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    debug('teardownLocalStorage');

    const volumeDataDir = await apps.getStorageDir(app);
    const [error] = await shell.promises.sudo('clearVolume', [ CLEARVOLUME_CMD, 'rmdir', volumeDataDir ], {});
    if (error) throw new BoxError(BoxError.FS_ERROR, error);
}

async function setupTurn(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    const disabled = app.manifest.addons.turn.optional && !app.enableTurn;
    if (disabled) return await addonConfigs.unset(app.id, 'turn');

    const turnSecret = await blobs.getString(blobs.ADDON_TURN_SECRET);
    if (!turnSecret) throw new BoxError(BoxError.ADDONS_ERROR, 'Turn secret is missing');

    const { fqdn:dashboardFqdn } = await dashboard.getLocation();

    const env = [
        { name: 'CLOUDRON_STUN_SERVER', value: dashboardFqdn },
        { name: 'CLOUDRON_STUN_PORT', value: '3478' },
        { name: 'CLOUDRON_STUN_TLS_PORT', value: '5349' },
        { name: 'CLOUDRON_TURN_SERVER', value: dashboardFqdn },
        { name: 'CLOUDRON_TURN_PORT', value: '3478' },
        { name: 'CLOUDRON_TURN_TLS_PORT', value: '5349' },
        { name: 'CLOUDRON_TURN_SECRET', value: turnSecret }
    ];

    debug('Setting up TURN');

    await addonConfigs.set(app.id, 'turn', env);
}

async function startTurn(existingInfra) {
    assert.strictEqual(typeof existingInfra, 'object');

    const serviceConfig = await getServiceConfig('turn');
    const image = infra.images.turn;
    const memoryLimit = serviceConfig.memoryLimit || SERVICES['turn'].defaultMemoryLimit;
    const { fqdn:realm } = await dashboard.getLocation();

    let turnSecret = await blobs.getString(blobs.ADDON_TURN_SECRET);
    if (!turnSecret) {
        debug('startTurn: generating turn secret');
        turnSecret = 'a' + crypto.randomBytes(15).toString('hex'); // prefix with a to ensure string starts with a letter
        await blobs.setString(blobs.ADDON_TURN_SECRET, turnSecret);
    }

    const readOnly = !serviceConfig.recoveryMode ? '--read-only' : '';
    const cmd = serviceConfig.recoveryMode ? '/bin/bash -c \'echo "Debug mode. Sleeping" && sleep infinity\'' : '';

    // this exports 3478/tcp, 5349/tls and 50000-51000/udp. note that this runs on the host network because docker's userland proxy
    // is spun for every port. we can disable this in some future release with --userland-proxy=false
    // https://github.com/moby/moby/issues/8356 and https://github.com/moby/moby/issues/14856
    const runCmd = `docker run --restart=always -d --name=turn \
                --hostname turn \
                --net host \
                --log-driver syslog \
                --log-opt syslog-address=unix://${paths.SYSLOG_SOCKET_FILE} \
                --log-opt syslog-format=rfc5424 \
                --log-opt tag=turn \
                -m ${memoryLimit} \
                --memory-swap -1 \
                --dns 172.18.0.1 \
                --dns-search=. \
                -e CLOUDRON_TURN_SECRET=${turnSecret} \
                -e CLOUDRON_REALM=${realm} \
                --label isCloudronManaged=true \
                ${readOnly} -v /tmp -v /run ${image} ${cmd}`;

    debug('startTurn: stopping and deleting previous turn container');
    await docker.stopContainer('turn');
    await docker.deleteContainer('turn');

    debug('startTurn: starting turn container');
    await shell.exec('startTurn', runCmd, { shell: '/bin/bash' });
}

async function teardownTurn(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    debug('Tearing down TURN');

    await addonConfigs.unset(app.id, 'turn');
}

async function setupEmail(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    const mailDomains = await mail.listDomains();
    const mailInDomains = mailDomains.filter(function (d) { return d.enabled; }).map(function (d) { return d.domain; }).join(',');
    const { fqdn } = await mailServer.getLocation();

    // note that "external" access info can be derived from MAIL_DOMAIN (since it's part of user documentation)
    const env = [
        { name: 'CLOUDRON_EMAIL_SMTP_SERVER', value: 'mail' },
        { name: 'CLOUDRON_EMAIL_SMTP_PORT', value: '2525' },
        { name: 'CLOUDRON_EMAIL_SMTPS_PORT', value: '2465' },
        { name: 'CLOUDRON_EMAIL_STARTTLS_PORT', value: '2587' },
        { name: 'CLOUDRON_EMAIL_IMAP_SERVER', value: 'mail' },
        { name: 'CLOUDRON_EMAIL_IMAPS_PORT', value: '9993' },
        { name: 'CLOUDRON_EMAIL_IMAP_PORT', value: '9393' },
        { name: 'CLOUDRON_EMAIL_SIEVE_SERVER', value: 'mail' },
        { name: 'CLOUDRON_EMAIL_SIEVE_PORT', value: '4190' }, // starttls
        { name: 'CLOUDRON_EMAIL_DOMAIN', value: app.domain },
        { name: 'CLOUDRON_EMAIL_DOMAINS', value: mailInDomains },
        { name: 'CLOUDRON_EMAIL_SERVER_HOST', value: fqdn }, // this is also a hint to reconfigure on mail server name change
        { name: 'CLOUDRON_EMAIL_LDAP_MAILBOXES_BASE_DN', value: 'ou=mailboxes,dc=cloudron' }
    ];

    debug('Setting up Email');

    await addonConfigs.set(app.id, 'email', env);
}

async function teardownEmail(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    debug('Tearing down Email');

    await addonConfigs.unset(app.id, 'email');
}

async function setupLdap(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    if (!app.sso) return;

    const env = [
        { name: 'CLOUDRON_LDAP_SERVER', value: '172.18.0.1' },
        { name: 'CLOUDRON_LDAP_HOST', value: '172.18.0.1' }, // to keep things in sync with the database _HOST vars
        { name: 'CLOUDRON_LDAP_PORT', value: '' + constants.LDAP_PORT },
        { name: 'CLOUDRON_LDAP_URL', value: 'ldap://172.18.0.1:' + constants.LDAP_PORT },
        { name: 'CLOUDRON_LDAP_USERS_BASE_DN', value: 'ou=users,dc=cloudron' },
        { name: 'CLOUDRON_LDAP_GROUPS_BASE_DN', value: 'ou=groups,dc=cloudron' },
        { name: 'CLOUDRON_LDAP_BIND_DN', value: 'cn='+ app.id + ',ou=apps,dc=cloudron' },
        { name: 'CLOUDRON_LDAP_BIND_PASSWORD', value: hat(4 * 128) } // this is ignored
    ];

    debug('Setting up LDAP');

    await addonConfigs.set(app.id, 'ldap', env);
}

async function teardownLdap(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    debug('Tearing down LDAP');

    await addonConfigs.unset(app.id, 'ldap');
}

async function setupSendMail(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    debug('Setting up SendMail');

    const disabled = app.manifest.addons.sendmail.optional && !app.enableMailbox;
    if (disabled) return await addonConfigs.unset(app.id, 'sendmail');

    const existingPassword = await addonConfigs.getByName(app.id, 'sendmail', '%MAIL_SMTP_PASSWORD');

    const password = existingPassword || hat(4 * 48); // see box#565 for password length

    const env = [
        { name: 'CLOUDRON_MAIL_SMTP_SERVER', value: 'mail' },
        { name: 'CLOUDRON_MAIL_SMTP_PORT', value: '2525' },
        { name: 'CLOUDRON_MAIL_SMTPS_PORT', value: '2465' },
        { name: 'CLOUDRON_MAIL_STARTTLS_PORT', value: '2587' },
        { name: 'CLOUDRON_MAIL_SMTP_USERNAME', value: app.mailboxName + '@' + app.mailboxDomain },
        { name: 'CLOUDRON_MAIL_SMTP_PASSWORD', value: password },
        { name: 'CLOUDRON_MAIL_FROM', value: app.mailboxName + '@' + app.mailboxDomain },
        { name: 'CLOUDRON_MAIL_DOMAIN', value: app.mailboxDomain }
    ];

    if (app.manifest.addons.sendmail.supportsDisplayName) env.push({ name: 'CLOUDRON_MAIL_FROM_DISPLAY_NAME', value: app.mailboxDisplayName });

    debug('Setting sendmail addon config to %j', env);
    await addonConfigs.set(app.id, 'sendmail', env);
}

async function teardownSendMail(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    debug('Tearing down sendmail');

    await addonConfigs.unset(app.id, 'sendmail');
}

async function setupRecvMail(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    debug('setupRecvMail: setting up recvmail');

    if (!app.enableInbox) return await addonConfigs.unset(app.id, 'recvmail');

    const existingPassword = await addonConfigs.getByName(app.id, 'recvmail', '%MAIL_IMAP_PASSWORD');

    const password = existingPassword || hat(4 * 48);  // see box#565 for password length

    const env = [
        { name: 'CLOUDRON_MAIL_IMAP_SERVER', value: 'mail' },
        { name: 'CLOUDRON_MAIL_IMAP_PORT', value: '9393' },
        { name: 'CLOUDRON_MAIL_IMAPS_PORT', value: '9993' },
        { name: 'CLOUDRON_MAIL_POP3_PORT', value: '9595' },
        { name: 'CLOUDRON_MAIL_POP3S_PORT', value: '9995' },
        { name: 'CLOUDRON_MAIL_IMAP_USERNAME', value: app.inboxName + '@' + app.inboxDomain },
        { name: 'CLOUDRON_MAIL_IMAP_PASSWORD', value: password },
        { name: 'CLOUDRON_MAIL_TO', value: app.inboxName + '@' + app.inboxDomain },
        { name: 'CLOUDRON_MAIL_TO_DOMAIN', value: app.inboxDomain },
    ];

    debug('setupRecvMail: setting recvmail addon config to %j', env);
    await addonConfigs.set(app.id, 'recvmail', env);
}

async function teardownRecvMail(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    debug('teardownRecvMail: tearing down recvmail');

    await addonConfigs.unset(app.id, 'recvmail');
}

function mysqlDatabaseName(appId) {
    assert.strictEqual(typeof appId, 'string');

    const md5sum = crypto.createHash('md5'); // get rid of "-"
    md5sum.update(appId);
    return md5sum.digest('hex').substring(0, 16);  // max length of mysql usernames is 16
}

async function startMysql(existingInfra) {
    assert.strictEqual(typeof existingInfra, 'object');

    const image = infra.images.mysql;
    const dataDir = paths.PLATFORM_DATA_DIR;
    const rootPassword = hat(8 * 128);
    const cloudronToken = hat(8 * 128);

    const upgrading = existingInfra.version !== 'none' && requiresUpgrade(existingInfra.images.mysql, image);

    if (upgrading) {
        debug('startMysql: mysql will be upgraded');
        await exportDatabase('mysql');
    }

    const serviceConfig = await getServiceConfig('mysql');
    const readOnly = !serviceConfig.recoveryMode ? '--read-only' : '';
    const cmd = serviceConfig.recoveryMode ? '/bin/bash -c \'echo "Debug mode. Sleeping" && sleep infinity\'' : '';

    // memory options are applied dynamically. import requires all the memory we can get
    const runCmd = `docker run --restart=always -d --name=mysql \
                --hostname mysql \
                --net cloudron \
                --net-alias mysql \
                --log-driver syslog \
                --log-opt syslog-address=unix://${paths.SYSLOG_SOCKET_FILE} \
                --log-opt syslog-format=rfc5424 \
                --log-opt tag=mysql \
                --dns 172.18.0.1 \
                --dns-search=. \
                --ip ${constants.MYSQL_SERVICE_IPv4} \
                -e CLOUDRON_MYSQL_TOKEN=${cloudronToken} \
                -e CLOUDRON_MYSQL_ROOT_HOST=172.18.0.1 \
                -e CLOUDRON_MYSQL_ROOT_PASSWORD=${rootPassword} \
                -v ${dataDir}/mysql:/var/lib/mysql \
                --label isCloudronManaged=true \
                --cap-add SYS_NICE \
                ${readOnly} -v /tmp -v /run ${image} ${cmd}`;

    debug('startMysql: stopping and deleting previous mysql container');
    await docker.stopContainer('mysql');
    await docker.deleteContainer('mysql');

    debug('startMysql: starting mysql container');
    await shell.exec('startMysql', runCmd, { shell: '/bin/bash' });

    if (!serviceConfig.recoveryMode) {
        await waitForContainer('mysql', 'CLOUDRON_MYSQL_TOKEN');
        if (upgrading) await importDatabase('mysql');
    }
}

async function setupMySql(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    debug('Setting up mysql');

    const existingPassword = await addonConfigs.getByName(app.id, 'mysql', '%MYSQL_PASSWORD');

    const tmp = mysqlDatabaseName(app.id);

    const data = {
        database: tmp,
        prefix: tmp,
        username: tmp,
        password: existingPassword || hat(4 * 48) // see box#362 for password length
    };

    const result = await getContainerDetails('mysql', 'CLOUDRON_MYSQL_TOKEN');

    const [networkError, response] = await safe(superagent.post(`http://${result.ip}:3000/` + (options.multipleDatabases ? 'prefixes' : 'databases') + `?access_token=${result.token}`)
        .send(data)
        .ok(() => true));

    if (networkError) throw new BoxError(BoxError.ADDONS_ERROR, `Network error setting up mysql: ${networkError.message}`);
    if (response.status !== 201) throw new BoxError(BoxError.ADDONS_ERROR, `Error setting up mysql. Status code: ${response.status} message: ${response.body.message}`);

    let env = [
        { name: 'CLOUDRON_MYSQL_USERNAME', value: data.username },
        { name: 'CLOUDRON_MYSQL_PASSWORD', value: data.password },
        { name: 'CLOUDRON_MYSQL_HOST', value: 'mysql' },
        { name: 'CLOUDRON_MYSQL_PORT', value: '3306' }
    ];

    if (options.multipleDatabases) {
        env = env.concat({ name: 'CLOUDRON_MYSQL_DATABASE_PREFIX', value: `${data.prefix}_` });
    } else {
        env = env.concat(
            { name: 'CLOUDRON_MYSQL_URL', value: `mysql://${data.username}:${data.password}@mysql/${data.database}` },
            { name: 'CLOUDRON_MYSQL_DATABASE', value: data.database }
        );
    }

    debug('Setting mysql addon config to %j', env);
    await addonConfigs.set(app.id, 'mysql', env);
}

async function clearMySql(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    const database = mysqlDatabaseName(app.id);

    const result = await getContainerDetails('mysql', 'CLOUDRON_MYSQL_TOKEN');

    const [networkError, response] = await safe(superagent.post(`http://${result.ip}:3000/` + (options.multipleDatabases ? 'prefixes' : 'databases') + `/${database}/clear?access_token=${result.token}`)
        .ok(() => true));

    if (networkError) throw new BoxError(BoxError.ADDONS_ERROR, `Network error clearing mysql: ${networkError.message}`);
    if (response.status !== 200) throw new BoxError(BoxError.ADDONS_ERROR, `Error clearing mysql. Status code: ${response.status} message: ${response.body.message}`);
}

async function teardownMySql(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    const database = mysqlDatabaseName(app.id);
    const username = database;

    const result = await getContainerDetails('mysql', 'CLOUDRON_MYSQL_TOKEN');

    const [networkError, response] = await safe(superagent.del(`http://${result.ip}:3000/` + (options.multipleDatabases ? 'prefixes' : 'databases') + `/${database}?access_token=${result.token}&username=${username}`)
        .ok(() => true));

    if (networkError) throw new BoxError(BoxError.ADDONS_ERROR, `Error tearing down mysql: ${networkError.message}`);
    if (response.status !== 200) throw new BoxError(BoxError.ADDONS_ERROR, `Error tearing down mysql. Status code: ${response.status} message: ${response.body.message}`);

    await addonConfigs.unset(app.id, 'mysql');
}

async function pipeRequestToFile(url, filename) {
    assert.strictEqual(typeof url, 'string');
    assert.strictEqual(typeof filename, 'string');

    return new Promise((resolve, reject) => {
        const writeStream = fs.createWriteStream(filename);
        const request = http.request(url, { method: 'POST' }); // ClientRequest
        request.setTimeout(4 * 60 * 60 * 1000, () => {
            debug('pipeRequestToFile: timeout - connect or post-connect idle timeout');
            request.destroy(); // connect OR post-connect idle timeout
            reject(new Error('Request timedout'));
        });

        request.on('error', (error) => reject(new BoxError(BoxError.NETWORK_ERROR, `Could not pipe ${url} to ${filename}: ${error.message}`))); // network error, dns error
        request.on('response', (response) => {
            debug(`pipeRequestToFile: connected with status code ${response.statusCode}`);
            if (response.statusCode !== 200) return reject(new BoxError(BoxError.ADDONS_ERROR, `Unexpected response code or HTTP error when piping ${url} to ${filename}: status ${response.statusCode}`));

            pipeline(response, writeStream, (error) => {
                if (error) return reject(new BoxError(BoxError.ADDONS_ERROR, `Error piping ${url} to ${filename}: ${error.message}`));

                if (!response.complete) return reject(new BoxError(BoxError.ADDONS_ERROR, `Response not complete when piping ${url} to ${filename}`));
                resolve();
            });
        });
        request.end(); // make the request
    });
}

async function pipeFileToRequest(filename, url) {
    assert.strictEqual(typeof filename, 'string');
    assert.strictEqual(typeof url, 'string');

    return new Promise((resolve, reject) => {
        const readStream = fs.createReadStream(filename);
        const request = http.request(url, { method: 'POST' }); // ClientRequest
        request.setTimeout(4 * 60 * 60 * 1000, () => {
            debug('pipeFileToRequest: timeout - connect or post-connect idle timeout');
            request.destroy();
            reject(new Error('Request timedout'));
        });
        request.on('response', (response) => {
            debug(`pipeFileToRequest: request completed with status code ${response.statusCode}`);
            response.resume(); // drain the response
            if (response.statusCode !== 200) return reject(new BoxError(BoxError.ADDONS_ERROR, `Unexpected response code or HTTP error when piping ${filename} to ${url}: status ${response.statusCode} complete ${response.complete}`));

            resolve();
        });

        debug(`pipeFileToRequest: piping ${filename} to ${url}`);
        pipeline(readStream, request, function (error) {
            if (error) return reject(new BoxError(BoxError.ADDONS_ERROR, `Error piping file ${filename} to request ${url}`));
            debug(`pipeFileToRequest: piped ${filename} to ${url}`); // now we have to wait for 'response' above
        });
    });
}

async function backupMySql(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    const database = mysqlDatabaseName(app.id);

    debug('Backing up mysql');

    const result = await getContainerDetails('mysql', 'CLOUDRON_MYSQL_TOKEN');

    const url = `http://${result.ip}:3000/` + (options.multipleDatabases ? 'prefixes' : 'databases') + `/${database}/backup?access_token=${result.token}`;
    await pipeRequestToFile(url, dumpPath('mysql', app.id));
}

async function restoreMySql(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    const database = mysqlDatabaseName(app.id);

    debug('restoreMySql');

    const result = await getContainerDetails('mysql', 'CLOUDRON_MYSQL_TOKEN');

    const url = `http://${result.ip}:3000/` + (options.multipleDatabases ? 'prefixes' : 'databases') + `/${database}/restore?access_token=${result.token}`;
    await pipeFileToRequest(dumpPath('mysql', app.id), url);
}

function postgreSqlNames(appId) {
    appId = appId.replace(/-/g, '');
    return { database: `db${appId}`, username: `user${appId}` };
}

async function startPostgresql(existingInfra) {
    assert.strictEqual(typeof existingInfra, 'object');

    const image = infra.images.postgresql;
    const dataDir = paths.PLATFORM_DATA_DIR;
    const rootPassword = hat(8 * 128);
    const cloudronToken = hat(8 * 128);

    const upgrading = existingInfra.version !== 'none' && requiresUpgrade(existingInfra.images.postgresql, image);

    if (upgrading) {
        debug('startPostgresql: postgresql will be upgraded');
        await exportDatabase('postgresql');
    }

    const serviceConfig = await getServiceConfig('postgresql');
    const readOnly = !serviceConfig.recoveryMode ? '--read-only' : '';
    const cmd = serviceConfig.recoveryMode ? '/bin/bash -c \'echo "Debug mode. Sleeping" && sleep infinity\'' : '';

    // memory options are applied dynamically. import requires all the memory we can get
    const runCmd = `docker run --restart=always -d --name=postgresql \
                --hostname postgresql \
                --net cloudron \
                --net-alias postgresql \
                --log-driver syslog \
                --log-opt syslog-address=unix://${paths.SYSLOG_SOCKET_FILE} \
                --log-opt syslog-format=rfc5424 \
                --log-opt tag=postgresql \
                --dns 172.18.0.1 \
                --dns-search=. \
                --ip ${constants.POSTGRESQL_SERVICE_IPv4} \
                --shm-size=128M \
                -e CLOUDRON_POSTGRESQL_ROOT_PASSWORD=${rootPassword} \
                -e CLOUDRON_POSTGRESQL_TOKEN=${cloudronToken} \
                -v ${dataDir}/postgresql:/var/lib/postgresql \
                --label isCloudronManaged=true \
                ${readOnly} -v /tmp -v /run ${image} ${cmd}`;

    debug('startPostgresqk: stopping and deleting previous postgresql container');
    await docker.stopContainer('postgresql');
    await docker.deleteContainer('postgresql');

    debug('startPostgresql: starting postgresql container');
    await shell.exec('startPostgresql', runCmd, { shell: '/bin/bash' });

    if (!serviceConfig.recoveryMode) {
        await waitForContainer('postgresql', 'CLOUDRON_POSTGRESQL_TOKEN');
        if (upgrading) await importDatabase('postgresql');
    }
}

async function setupPostgreSql(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    debug('Setting up postgresql');

    const { database, username } = postgreSqlNames(app.id);

    const existingPassword = await addonConfigs.getByName(app.id, 'postgresql', '%POSTGRESQL_PASSWORD');

    const data = {
        database: database,
        username: username,
        password: existingPassword || hat(4 * 128),
        locale: options.locale || 'C'
    };

    const result = await getContainerDetails('postgresql', 'CLOUDRON_POSTGRESQL_TOKEN');

    const [networkError, response] = await safe(superagent.post(`http://${result.ip}:3000/databases?access_token=${result.token}`)
        .send(data)
        .ok(() => true));
    if (networkError) throw new BoxError(BoxError.ADDONS_ERROR, `Network error setting up postgresql: ${networkError.message}`);
    if (response.status !== 201) throw new BoxError(BoxError.ADDONS_ERROR, `Error setting up postgresql. Status code: ${response.status} message: ${response.body.message}`);

    const env = [
        { name: 'CLOUDRON_POSTGRESQL_URL', value: `postgres://${data.username}:${data.password}@postgresql/${data.database}` },
        { name: 'CLOUDRON_POSTGRESQL_USERNAME', value: data.username },
        { name: 'CLOUDRON_POSTGRESQL_PASSWORD', value: data.password },
        { name: 'CLOUDRON_POSTGRESQL_HOST', value: 'postgresql' },
        { name: 'CLOUDRON_POSTGRESQL_PORT', value: '5432' },
        { name: 'CLOUDRON_POSTGRESQL_DATABASE', value: data.database }
    ];

    debug('Setting postgresql addon config to %j', env);
    await addonConfigs.set(app.id, 'postgresql', env);
}

async function clearPostgreSql(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    const { database, username } = postgreSqlNames(app.id);
    const locale = options.locale || 'C';

    debug('Clearing postgresql');

    const result = await getContainerDetails('postgresql', 'CLOUDRON_POSTGRESQL_TOKEN');

    const [networkError, response] = await safe(superagent.post(`http://${result.ip}:3000/databases/${database}/clear?access_token=${result.token}&username=${username}&locale=${locale}`)
        .ok(() => true));
    if (networkError) throw new BoxError(BoxError.ADDONS_ERROR, `Network error clearing postgresql: ${networkError.message}`);
    if (response.status !== 200) throw new BoxError(BoxError.ADDONS_ERROR, `Error clearing postgresql. Status code: ${response.status} message: ${response.body.message}`);
}

async function teardownPostgreSql(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    const { database, username } = postgreSqlNames(app.id);

    const result = await getContainerDetails('postgresql', 'CLOUDRON_POSTGRESQL_TOKEN');

    const [networkError, response] = await safe(superagent.del(`http://${result.ip}:3000/databases/${database}?access_token=${result.token}&username=${username}`)
        .ok(() => true));
    if (networkError) throw new BoxError(BoxError.ADDONS_ERROR, `Network error tearing down postgresql: ${networkError.message}`);
    if (response.status !== 200) throw new BoxError(BoxError.ADDONS_ERROR, `Error tearing down postgresql. Status code: ${response.status} message: ${response.body.message}`);

    await addonConfigs.unset(app.id, 'postgresql');
}

async function backupPostgreSql(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    debug('Backing up postgresql');

    const { database } = postgreSqlNames(app.id);

    const result = await getContainerDetails('postgresql', 'CLOUDRON_POSTGRESQL_TOKEN');
    await pipeRequestToFile(`http://${result.ip}:3000/databases/${database}/backup?access_token=${result.token}`, dumpPath('postgresql', app.id));
}

async function restorePostgreSql(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    debug('Restore postgresql');

    const { database, username } = postgreSqlNames(app.id);

    const result = await getContainerDetails('postgresql', 'CLOUDRON_POSTGRESQL_TOKEN');

    await pipeFileToRequest(dumpPath('postgresql', app.id), `http://${result.ip}:3000/databases/${database}/restore?access_token=${result.token}&username=${username}`);
}

async function hasAVX() {
    // mongodb 5 and above requires AVX
    const [error] = await safe(shell.exec('hasAVX', 'grep -q avx /proc/cpuinfo', {}));
    return !error;
}

async function startMongodb(existingInfra) {
    assert.strictEqual(typeof existingInfra, 'object');

    const image = infra.images.mongodb;
    const dataDir = paths.PLATFORM_DATA_DIR;
    const rootPassword = hat(8 * 128);
    const cloudronToken = hat(8 * 128);

    const upgrading = existingInfra.version !== 'none' && requiresUpgrade(existingInfra.images.mongodb, image);

    if (upgrading) {
        debug('startMongodb: mongodb will be upgraded');
        await exportDatabase('mongodb');
    }

    const serviceConfig = await getServiceConfig('mongodb');
    const readOnly = !serviceConfig.recoveryMode ? '--read-only' : '';
    const cmd = serviceConfig.recoveryMode ? '/bin/bash -c \'echo "Debug mode. Sleeping" && sleep infinity\'' : '';

    // memory options are applied dynamically. import requires all the memory we can get
    const runCmd = `docker run --restart=always -d --name=mongodb \
                --hostname mongodb \
                --net cloudron \
                --net-alias mongodb \
                --log-driver syslog \
                --log-opt syslog-address=unix://${paths.SYSLOG_SOCKET_FILE} \
                --log-opt syslog-format=rfc5424 \
                --log-opt tag=mongodb \
                --dns 172.18.0.1 \
                --dns-search=. \
                --ip ${constants.MONGODB_SERVICE_IPv4} \
                -e CLOUDRON_MONGODB_ROOT_PASSWORD=${rootPassword} \
                -e CLOUDRON_MONGODB_TOKEN=${cloudronToken} \
                -v ${dataDir}/mongodb:/var/lib/mongodb \
                --label isCloudronManaged=true \
                ${readOnly} -v /tmp -v /run ${image} ${cmd}`;

    debug('startMongodb: stopping and deleting previous mongodb container');
    await docker.stopContainer('mongodb');
    await docker.deleteContainer('mongodb');

    if (!await hasAVX()) {
        debug('startMongodb: not starting mongodb because CPU does not have AVX');
        return;
    }

    debug('startMongodb: starting mongodb container');
    await shell.exec('startMongodb', runCmd, { shell: '/bin/bash' });

    if (!serviceConfig.recoveryMode) {
        await waitForContainer('mongodb', 'CLOUDRON_MONGODB_TOKEN');
        if (upgrading) await importDatabase('mongodb');
    }
}

async function setupMongoDb(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    debug('Setting up mongodb');

    if (!await hasAVX()) throw new BoxError(BoxError.ADDONS_ERROR, 'Error setting up mongodb. CPU has no AVX support');

    const existingPassword = await addonConfigs.getByName(app.id, 'mongodb', '%MONGODB_PASSWORD');
    let database = await addonConfigs.getByName(app.id, 'mongodb', '%MONGODB_DATABASE');
    database = database || hat(8 * 8); // 16 bytes. keep this short, so as to not overflow the 127 byte index length in MongoDB < 4.4

    const data = {
        database,
        username: app.id,
        password: existingPassword || hat(4 * 128),
        oplog: !!options.oplog
    };

    const result = await getContainerDetails('mongodb', 'CLOUDRON_MONGODB_TOKEN');

    const [networkError, response] = await safe(superagent.post(`http://${result.ip}:3000/databases?access_token=${result.token}`)
        .send(data)
        .ok(() => true));

    if (networkError) throw new BoxError(BoxError.ADDONS_ERROR, `Network error setting up mongodb: ${networkError.message}`);
    if (response.status !== 201) throw new BoxError(BoxError.ADDONS_ERROR, `Error setting up mongodb. Status code: ${response.status} message: ${response.body.message}`);

    const env = [
        { name: 'CLOUDRON_MONGODB_URL', value : `mongodb://${data.username}:${data.password}@mongodb:27017/${data.database}` },
        { name: 'CLOUDRON_MONGODB_USERNAME', value : data.username },
        { name: 'CLOUDRON_MONGODB_PASSWORD', value: data.password },
        { name: 'CLOUDRON_MONGODB_HOST', value : 'mongodb' },
        { name: 'CLOUDRON_MONGODB_PORT', value : '27017' },
        { name: 'CLOUDRON_MONGODB_DATABASE', value : data.database }
    ];

    if (options.oplog) {
        env.push({ name: 'CLOUDRON_MONGODB_OPLOG_URL', value : `mongodb://${data.username}:${data.password}@mongodb:27017/local?authSource=${data.database}` });
    }

    debug('Setting mongodb addon config to %j', env);
    await addonConfigs.set(app.id, 'mongodb', env);
}

async function clearMongodb(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    if (!await hasAVX()) throw new BoxError(BoxError.ADDONS_ERROR, 'Error clearing mongodb. CPU has no AVX support');

    const result = await getContainerDetails('mongodb', 'CLOUDRON_MONGODB_TOKEN');

    const database = await addonConfigs.getByName(app.id, 'mongodb', '%MONGODB_DATABASE');
    if (!database) throw new BoxError(BoxError.NOT_FOUND, 'Error clearing mongodb. No database');

    const [networkError, response] = await safe(superagent.post(`http://${result.ip}:3000/databases/${database}/clear?access_token=${result.token}`)
        .ok(() => true));

    if (networkError) throw new BoxError(BoxError.ADDONS_ERROR, `Network error clearing mongodb: ${networkError.message}`);
    if (response.status !== 200) throw new BoxError(BoxError.ADDONS_ERROR, `Error clearing mongodb. Status code: ${response.status} message: ${response.body.message}`);
}

async function teardownMongoDb(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    if (!await hasAVX()) throw new BoxError(BoxError.ADDONS_ERROR, 'Error tearing down mongodb. CPU has no AVX support');

    const result = await getContainerDetails('mongodb', 'CLOUDRON_MONGODB_TOKEN');

    const database = await addonConfigs.getByName(app.id, 'mongodb', '%MONGODB_DATABASE');
    if (!database) return;

    const [networkError, response] = await safe(superagent.del(`http://${result.ip}:3000/databases/${database}?access_token=${result.token}`)
        .ok(() => true));

    if (networkError) throw new BoxError(BoxError.ADDONS_ERROR, `Error tearing down mongodb: ${networkError.message}`);
    if (response.status !== 200) throw new BoxError(BoxError.ADDONS_ERROR, `Error tearing down mongodb. Status code: ${response.status} message: ${response.body.message}`);

    addonConfigs.unset(app.id, 'mongodb');
}

async function backupMongoDb(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    debug('Backing up mongodb');

    if (!await hasAVX()) throw new BoxError(BoxError.ADDONS_ERROR, 'Error backing up mongodb. CPU has no AVX support');

    const result = await getContainerDetails('mongodb', 'CLOUDRON_MONGODB_TOKEN');

    const database = await addonConfigs.getByName(app.id, 'mongodb', '%MONGODB_DATABASE');
    if (!database) throw new BoxError(BoxError.NOT_FOUND, 'Error backing up mongodb. No database');

    await pipeRequestToFile(`http://${result.ip}:3000/databases/${database}/backup?access_token=${result.token}`, dumpPath('mongodb', app.id));
}

async function restoreMongoDb(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    debug('restoreMongoDb');

    if (!await hasAVX()) throw new BoxError(BoxError.ADDONS_ERROR, 'Error restoring mongodb. CPU has no AVX support');

    const result = await getContainerDetails('mongodb', 'CLOUDRON_MONGODB_TOKEN');

    const database = await addonConfigs.getByName(app.id, 'mongodb', '%MONGODB_DATABASE');
    if (!database) throw new BoxError(BoxError.NOT_FOUND, 'Error restoring mongodb. No database');

    await pipeFileToRequest(dumpPath('mongodb', app.id), `http://${result.ip}:3000/databases/${database}/restore?access_token=${result.token}`);
}

async function statusMongodb() {
    if (!await hasAVX()) return { status: exports.SERVICE_STATUS_DISABLED };
    return await containerStatus('mongodb', 'CLOUDRON_MONGODB_TOKEN');
}

async function restartMongodb() {
    if (!await hasAVX()) throw new BoxError(BoxError.ADDONS_ERROR, 'MongoDB is disabled. CPU has no AVX support');

    return await docker.restartContainer('mongodb');
}

async function startGraphite(existingInfra) {
    assert.strictEqual(typeof existingInfra, 'object');

    const serviceConfig = await getServiceConfig('graphite');
    const image = infra.images.graphite;
    const memoryLimit = serviceConfig.memoryLimit || 256 * 1024 * 1024;

    const upgrading = existingInfra.version !== 'none' && requiresUpgrade(existingInfra.images.graphite, image);

    if (upgrading) debug('startGraphite: graphite will be upgraded');

    const readOnly = !serviceConfig.recoveryMode ? '--read-only' : '';
    const cmd = serviceConfig.recoveryMode ? '/bin/bash -c \'echo "Debug mode. Sleeping" && sleep infinity\'' : '';

    // port 2003 is used by collectd
    const runCmd = `docker run --restart=always -d --name=graphite \
        --hostname graphite \
        --net cloudron \
        --net-alias graphite \
        --log-driver syslog \
        --log-opt syslog-address=unix://${paths.SYSLOG_SOCKET_FILE} \
        --log-opt syslog-format=rfc5424 \
        --log-opt tag=graphite \
        -m ${memoryLimit} \
        --memory-swap -1 \
        --dns 172.18.0.1 \
        --dns-search=. \
        -p 127.0.0.1:2003:2003 \
        -v ${paths.PLATFORM_DATA_DIR}/graphite:/var/lib/graphite \
        --label isCloudronManaged=true \
        ${readOnly} -v /tmp -v /run ${image} ${cmd}`;

    debug('startGraphite: stopping and deleting previous graphite container');
    await docker.stopContainer('graphite');
    await docker.deleteContainer('graphite');

    if (upgrading) await shell.promises.sudo('removeGraphiteDir', [ RMADDONDIR_CMD, 'graphite' ], {});

    debug('startGraphite: starting graphite container');
    await shell.exec('startGraphite', runCmd, { shell: '/bin/bash' });

    // restart collectd to get the disk stats after graphite starts. currently, there is no way to do graphite health check
    setTimeout(async () => await safe(shell.promises.sudo('restartcollectd', [ RESTART_SERVICE_CMD, 'collectd' ], {})), 60000);
}

async function setupProxyAuth(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    debug('Setting up proxyAuth');

    const enabled = app.sso && app.manifest.addons && app.manifest.addons.proxyAuth;

    if (!enabled) return;

    const env = [ { name: 'CLOUDRON_PROXY_AUTH', value: '1' } ];
    await addonConfigs.set(app.id, 'proxyauth', env);

    debug('Creating OpenID client for proxyAuth');

    // openid client_id is appId for now
    const [error, result] = await safe(oidc.clients.get(app.id));
    if (error) throw error;

    // ensure we keep the secret
    const data = {
        secret: result ? result.secret : hat(4 * 128),
        loginRedirectUri: `https://${app.fqdn}/callback`,
        logoutRedirectUri: '',
        tokenSignatureAlgorithm: 'RS256',
        name: '',
        appId: app.id
    };

    if (result) await oidc.clients.update(app.id, data);
    else await oidc.clients.add(app.id, data);
}

async function teardownProxyAuth(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    await addonConfigs.unset(app.id, 'proxyauth');

    debug('Deleting OpenID client for proxyAuth');

    const [error] = await safe(oidc.clients.del(app.id));
    if (error && error.reason !== BoxError.NOT_FOUND) throw error;
}

async function setupDocker(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    debug('Setting up docker');

    const env = [ { name: 'CLOUDRON_DOCKER_HOST', value: `tcp://172.18.0.1:${constants.DOCKER_PROXY_PORT}` } ];
    await addonConfigs.set(app.id, 'docker', env);
}

async function teardownDocker(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    await addonConfigs.unset(app.id, 'docker');
}

async function startRedis(existingInfra) {
    assert.strictEqual(typeof existingInfra, 'object');

    const image = infra.images.redis;
    const upgrading = existingInfra.version !== 'none' && requiresUpgrade(existingInfra.images.redis, image);

    const allApps = await apps.list();

    for (const app of allApps) {
        if (!('redis' in app.manifest.addons)) continue; // app doesn't use the addon

        const redisName = `redis-${app.id}`;

        if (upgrading) await backupRedis(app, {});

        debug(`startRedis: stopping and deleting previous redis container ${redisName}`);
        await docker.stopContainer(redisName);
        await docker.deleteContainer(redisName);

        debug(`startRedis: starting redis container ${redisName}`);
        await setupRedis(app, app.manifest.addons.redis); // starts the container
    }

    if (upgrading) await importDatabase('redis');
}

// Ensures that app's addon redis container is running. Can be called when named container already exists/running
async function setupRedis(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    const redisName = 'redis-' + app.id;

    const disabled = app.manifest.addons.redis.optional && !app.enableRedis;
    if (disabled) return await addonConfigs.unset(app.id, 'redis');

    const existingPassword = await addonConfigs.getByName(app.id, 'redis', '%REDIS_PASSWORD');

    const redisPassword = options.noPassword ? '' : (existingPassword || hat(4 * 48)); // see box#362 for password length
    const redisServiceToken = hat(4 * 48);

    // Compute redis memory limit based on app's memory limit (this is arbitrary)
    const memoryLimit = app.servicesConfig['redis']?.memoryLimit || APP_SERVICES['redis'].defaultMemoryLimit;

    const recoveryMode = app.servicesConfig['redis']?.recoveryMode || false;
    const readOnly = !recoveryMode ? '--read-only' : '';
    const cmd = recoveryMode ? '/bin/bash -c \'echo "Debug mode. Sleeping" && sleep infinity\'' : '';

    const image = infra.images.redis;
    const label = app.fqdn;
    // note that we do not add appId label because this interferes with the stop/start app logic
    const runCmd = `docker run --restart=always -d --name=${redisName} \
                --hostname ${redisName} \
                --label=location=${label} \
                --net cloudron \
                --net-alias ${redisName} \
                --log-driver syslog \
                --log-opt syslog-address=unix://${paths.SYSLOG_SOCKET_FILE} \
                --log-opt syslog-format=rfc5424 \
                --log-opt tag=${redisName} \
                -m ${memoryLimit} \
                --memory-swap -1 \
                --dns 172.18.0.1 \
                --dns-search=. \
                -e CLOUDRON_REDIS_PASSWORD=${redisPassword} \
                -e CLOUDRON_REDIS_TOKEN=${redisServiceToken} \
                -v ${paths.PLATFORM_DATA_DIR}/redis/${app.id}:/var/lib/redis \
                --label isCloudronManaged=true \
                ${readOnly} -v /tmp -v /run ${image} ${cmd}`;

    const env = [
        { name: 'CLOUDRON_REDIS_URL', value: 'redis://default:' + redisPassword + '@redis-' + app.id }, // https://github.com/redis/node-redis/issues/1591
        { name: 'CLOUDRON_REDIS_PASSWORD', value: redisPassword },
        { name: 'CLOUDRON_REDIS_HOST', value: redisName },
        { name: 'CLOUDRON_REDIS_PORT', value: '6379' }
    ];

    const [inspectError, result] = await safe(docker.inspect(redisName));
    if (inspectError) {
        await shell.exec('startRedis', runCmd, { shell: '/bin/bash' });
    } else { // fast path
        debug(`Re-using existing redis container with state: ${JSON.stringify(result.State)}`);
    }

    if (!recoveryMode) {
        await addonConfigs.set(app.id, 'redis', env);
        await waitForContainer('redis-' + app.id, 'CLOUDRON_REDIS_TOKEN');
    }
}

async function clearRedis(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    debug('Clearing redis');

    const disabled = app.manifest.addons.redis.optional && !app.enableRedis;
    if (disabled) return;

    const result = await getContainerDetails('redis-' + app.id, 'CLOUDRON_REDIS_TOKEN');

    const [networkError, response] = await safe(superagent.post(`http://${result.ip}:3000/clear?access_token=${result.token}`)
        .ok(() => true));

    if (networkError) throw new BoxError(BoxError.ADDONS_ERROR, `Network error clearing redis: ${networkError.message}`);
    if (response.status !== 200) throw new BoxError(BoxError.ADDONS_ERROR, `Error clearing redis. Status code: ${response.status} message: ${response.body.message}`);
}

async function teardownRedis(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    await docker.deleteContainer(`redis-${app.id}`);

    const [error] = await safe(shell.promises.sudo('removeVolume', [ RMADDONDIR_CMD, 'redis', app.id ], {}));
    if (error) throw new BoxError(BoxError.FS_ERROR, `Error removing redis data: ${error.message}`);

    safe.fs.rmSync(path.join(paths.LOG_DIR, `redis-${app.id}`), { recursive: true, force: true });
    if (safe.error) debug('teardownRedis: cannot cleanup logs: %o', safe.error);

    await addonConfigs.unset(app.id, 'redis');
}

async function backupRedis(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    const disabled = app.manifest.addons.redis.optional && !app.enableRedis;
    if (disabled) return;

    debug('Backing up redis');

    const result = await getContainerDetails('redis-' + app.id, 'CLOUDRON_REDIS_TOKEN');
    await pipeRequestToFile(`http://${result.ip}:3000/backup?access_token=${result.token}`, dumpPath('redis', app.id));
}

async function restoreRedis(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    const disabled = app.manifest.addons.redis.optional && !app.enableRedis;
    if (disabled) return;

    debug('Restoring redis');

    const result = await getContainerDetails('redis-' + app.id, 'CLOUDRON_REDIS_TOKEN');
    await pipeFileToRequest(dumpPath('redis', app.id), `http://${result.ip}:3000/restore?access_token=${result.token}`);
}

async function setupTls(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    if (!safe.fs.mkdirSync(`${paths.PLATFORM_DATA_DIR}/tls/${app.id}`, { recursive: true })) {
        debug('Error creating tls directory');
        throw new BoxError(BoxError.FS_ERROR, safe.error.message);
    }
}

async function teardownTls(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    safe.fs.rmSync(`${paths.PLATFORM_DATA_DIR}/tls/${app.id}`, { recursive: true, force: true });
}

async function statusTurn() {
    const [error, container] = await safe(docker.inspect('turn'));
    if (error && error.reason === BoxError.NOT_FOUND) return { status: exports.SERVICE_STATUS_STOPPED };
    if (error) throw error;

    const result = await docker.memoryUsage(container.Id);

    const status = container.State.Running
        ? (container.HostConfig.ReadonlyRootfs ? exports.SERVICE_STATUS_ACTIVE : exports.SERVICE_STATUS_STARTING)
        : exports.SERVICE_STATUS_STOPPED;
    const stats = result.memory_stats || { usage: 0, limit: 1 };

    return {
        status,
        memoryUsed: stats.usage,
        memoryPercent: parseInt(100 * stats.usage / stats.limit)
    };
}

async function statusDocker() {
    const [error] = await safe(docker.ping());
    return { status: error ? exports.SERVICE_STATUS_STOPPED: exports.SERVICE_STATUS_ACTIVE };
}

async function restartDocker() {
    const [error] = await safe(shell.promises.sudo('restartdocker', [ RESTART_SERVICE_CMD, 'docker' ], {}));
    if (error) debug(`restartDocker: error restarting docker. ${error.message}`);
}

async function statusUnbound() {
    const [error] = await safe(shell.exec('statusUnbound', 'systemctl is-active unbound', {}));
    if (error) return { status: exports.SERVICE_STATUS_STOPPED };

    const [digError, digResult] = await safe(dig.resolve('ipv4.api.cloudron.io', 'A', { server: '127.0.0.1', timeout: 10000 }));
    if (!digError && Array.isArray(digResult) && digResult.length !== 0) return { status: exports.SERVICE_STATUS_ACTIVE };

    debug('statusUnbound: unbound is up, but failed to resolve ipv4.api.cloudron.io . %o %j', digError, digResult);
    return { status: exports.SERVICE_STATUS_STARTING };
}

async function restartUnbound() {
    const [error] = await safe(shell.promises.sudo('restartunbound', [ RESTART_SERVICE_CMD, 'unbound' ], {}));
    if (error) debug(`restartDocker: error restarting unbound. ${error.message}`);
}

async function statusNginx() {
    const [error] = await safe(shell.exec('statusNginx', 'systemctl is-active nginx', {}));
    return { status: error ? exports.SERVICE_STATUS_STOPPED : exports.SERVICE_STATUS_ACTIVE };
}

async function restartNginx() {
    const [error] = await safe(shell.promises.sudo('restartnginx', [ RESTART_SERVICE_CMD, 'nginx' ], {}));
    if (error) debug(`restartNginx: error restarting unbound. ${error.message}`);
}

async function statusGraphite() {
    const [error, container] = await safe(docker.inspect('graphite'));
    if (error && error.reason === BoxError.NOT_FOUND) return { status: exports.SERVICE_STATUS_STOPPED };
    if (error) throw error;

    const ip = safe.query(container, 'NetworkSettings.Networks.cloudron.IPAddress', null);
    if (!ip) throw new BoxError(BoxError.INACTIVE, 'Error getting IP of graphite service');

    const [networkError, response] = await safe(superagent.get(`http://${ip}:8000/graphite-web/dashboard`)
        .timeout(20000)
        .ok(() => true));

    if (networkError) return { status: exports.SERVICE_STATUS_STARTING, error: `Error waiting for graphite: ${networkError.message}` };
    if (response.status !== 200) return { status: exports.SERVICE_STATUS_STARTING, error: `Error waiting for graphite. Status code: ${response.status} message: ${response.body.message}` };

    const result = await docker.memoryUsage('graphite');
    const stats = result.memory_stats || { usage: 0, limit: 1 };

    return {
        status: container.State.Running ? exports.SERVICE_STATUS_ACTIVE : exports.SERVICE_STATUS_STOPPED,
        memoryUsed: stats.usage,
        memoryPercent: parseInt(100 * stats.usage / stats.limit)
    };
}

async function restartGraphite() {
    await docker.restartContainer('graphite');

    setTimeout(async () => {
        const [error] = await safe(shell.promises.sudo('restartcollectd', [ RESTART_SERVICE_CMD, 'collectd' ], {}));
        if (error) debug(`restartGraphite: error restarting collected. ${error.message}`);
    }, 60000);
}

async function teardownOauth(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    debug('teardownOauth');

    await addonConfigs.unset(app.id, 'oauth');
}

async function setupOidc(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    if (!app.sso) return;

    debug('Setting up OpenID connect');

    // openid client_id is appId for now
    const [error, result] = await safe(oidc.clients.get(app.id));
    if (error) throw error;

    // ensure we keep the secret
    const data = {
        secret: result ? result.secret : hat(4 * 128),
        loginRedirectUri: options.loginRedirectUri || '',
        logoutRedirectUri: options.logoutRedirectUri || '',
        tokenSignatureAlgorithm: options.tokenSignatureAlgorithm || 'RS256',
        name: '',
        appId: app.id
    };

    if (result) await oidc.clients.update(app.id, data);
    else await oidc.clients.add(app.id, data);
}

async function teardownOidc(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    debug('Tearing down OpenID connect');

    const [error] = await safe(oidc.clients.del(app.id));
    if (error && error.reason !== BoxError.NOT_FOUND) throw error;
}

async function getDynamicEnvironmentOidc(app, options) {
    assert.strictEqual(typeof app, 'object');
    assert.strictEqual(typeof options, 'object');

    const { fqdn:dashboardFqdn } = await dashboard.getLocation();

    if (!app.sso) return {};

    const client = await oidc.clients.get(app.id);
    if (!client) throw new BoxError(BoxError.NOT_FOUND, `OIDC client for ${app.id} has not been allocated yet`); // happens with overzealous scheduler logic

    const tmp = {};
    tmp['CLOUDRON_OIDC_DISCOVERY_URL'] = `https://${dashboardFqdn}/openid/.well-known/openid-configuration`;
    tmp['CLOUDRON_OIDC_ISSUER'] = `https://${dashboardFqdn}/openid`;
    tmp['CLOUDRON_OIDC_AUTH_ENDPOINT'] = `https://${dashboardFqdn}/openid/auth`;
    tmp['CLOUDRON_OIDC_TOKEN_ENDPOINT'] = `https://${dashboardFqdn}/openid/token`;
    tmp['CLOUDRON_OIDC_KEYS_ENDPOINT'] = `https://${dashboardFqdn}/openid/jwks`;
    tmp['CLOUDRON_OIDC_PROFILE_ENDPOINT'] = `https://${dashboardFqdn}/openid/me`;
    // following is only available if rpInitiatedLogout would be enabled https://github.com/panva/node-oidc-provider/blob/main/docs/README.md#featuresrpinitiatedlogout
    // tmp['CLOUDRON_OIDC_LOGOUT_URL'] = `https://${dashboardFqdn}/openid/session/end`;

    tmp['CLOUDRON_OIDC_CLIENT_ID'] = client.id;
    tmp['CLOUDRON_OIDC_CLIENT_SECRET'] = client.secret;

    tmp['CLOUDRON_OIDC_PROVIDER_NAME'] = 'Cloudron';

    return tmp;
}

async function checkAddonsSupport(addons) {
    assert.strictEqual(typeof addons, 'object');

    if (addons.mongodb && !await hasAVX()) return new BoxError(BoxError.BAD_FIELD, 'This app requires MongoDB, but MongoDB is disabled because the CPU does not support AVX');

    return null;
}