Files
cloudron-box/src/platform.js
2017-01-09 10:28:25 -08:00

322 lines
13 KiB
JavaScript

'use strict';
exports = module.exports = {
initialize: initialize,
uninitialize: uninitialize,
events: new (require('events').EventEmitter)(),
EVENT_READY: 'ready',
isReadySync: isReadySync
};
var apps = require('./apps.js'),
assert = require('assert'),
async = require('async'),
config = require('./config.js'),
certificates = require('./certificates.js'),
debug = require('debug')('box:platform'),
fs = require('fs'),
hat = require('hat'),
infra = require('./infra_version.js'),
os = require('os'),
paths = require('./paths.js'),
safe = require('safetydance'),
settings = require('./settings.js'),
shell = require('./shell.js'),
subdomains = require('./subdomains.js'),
user = require('./user.js'),
util = require('util'),
_ = require('underscore');
var gPlatformReadyTimer = null;
var NOOP_CALLBACK = function (error) { if (error) debug(error); };
function initialize(callback) {
if (process.env.BOX_ENV === 'test' && !process.env.TEST_CREATE_INFRA) return callback();
debug('initializing addon infrastructure');
settings.events.on(settings.MAIL_CONFIG_KEY, function () { startMail(NOOP_CALLBACK); });
var existingInfra = { version: 'none' };
if (fs.existsSync(paths.INFRA_VERSION_FILE)) {
existingInfra = safe.JSON.parse(fs.readFileSync(paths.INFRA_VERSION_FILE, 'utf8'));
if (!existingInfra) existingInfra = { version: 'corrupt' };
}
// short-circuit for the restart case
if (_.isEqual(infra, existingInfra)) {
debug('platform is uptodate at version %s', infra.version);
process.nextTick(function () { exports.events.emit(exports.EVENT_READY); });
return callback();
}
debug('Updating infrastructure from %s to %s', existingInfra.version, infra.version);
async.series([
stopContainers.bind(null, existingInfra),
createDockerNetwork,
startAddons.bind(null, existingInfra),
removeOldImages,
startApps.bind(null, existingInfra),
fs.writeFile.bind(fs, paths.INFRA_VERSION_FILE, JSON.stringify(infra))
], function (error) {
if (error) return callback(error);
// give 30 seconds for the platform to "settle". For example, mysql might still be initing the
// database dir and we cannot call service scripts until that's done.
// TODO: make this smarter to not wait for 30secs for the crash-restart case
gPlatformReadyTimer = setTimeout(function () {
debug('emitting platform ready');
gPlatformReadyTimer = null;
exports.events.emit(exports.EVENT_READY);
}, 30000);
callback();
});
}
function uninitialize(callback) {
clearTimeout(gPlatformReadyTimer);
gPlatformReadyTimer = null;
settings.events.removeListener(settings.MAIL_CONFIG_KEY, startMail);
callback();
}
function isReadySync() {
return gPlatformReadyTimer === null;
}
function removeOldImages(callback) {
debug('removing old addon images');
for (var imageName in infra.images) {
var image = infra.images[imageName];
debug('cleaning up images of %j', image);
var cmd = 'docker images "%s" | tail -n +2 | awk \'{ print $1 ":" $2 }\' | grep -v "%s" | xargs --no-run-if-empty docker rmi';
shell.execSync('removeOldImagesSync', util.format(cmd, image.repo, image.tag));
}
callback();
}
function stopContainers(existingInfra, callback) {
// TODO: be nice and stop addons cleanly (example, shutdown commands)
if (existingInfra.version !== infra.version) { // infra upgrade
debug('stopping all containers for infra upgrade');
shell.execSync('stopContainers', 'docker ps -qa | xargs --no-run-if-empty docker rm -f');
} else {
assert(typeof infra.images, 'object');
var changedAddons = [ ];
for (var imageName in infra.images) {
if (infra.images[imageName].tag !== existingInfra.images[imageName].tag) changedAddons.push(imageName);
}
debug('stopping addons for incremental infra update: %j', changedAddons);
// ignore error if container not found (and fail later) so that this code works across restarts
shell.execSync('stopContainers', 'docker rm -f ' + changedAddons.join(' ') + ' || true');
}
callback();
}
function createDockerNetwork(callback) {
shell.execSync('createDockerNetwork', 'docker network create --subnet=172.18.0.0/16 cloudron || true', callback);
}
function startGraphite(callback) {
const tag = infra.images.graphite.tag;
const dataDir = paths.DATA_DIR;
const cmd = `docker run --restart=always -d --name="graphite" \
--net cloudron \
--net-alias graphite \
-m 75m \
--memory-swap 150m \
-p 127.0.0.1:2003:2003 \
-p 127.0.0.1:2004:2004 \
-p 127.0.0.1:8000:8000 \
-v "${dataDir}/graphite:/app/data" \
--read-only -v /tmp -v /run "${tag}"`;
shell.execSync('startGraphite', cmd);
callback();
}
function startMysql(callback) {
const tag = infra.images.mysql.tag;
const dataDir = paths.DATA_DIR;
const rootPassword = hat(8 * 128);
const memoryLimit = (1 + Math.round(os.totalmem()/(1024*1024*1024)/4)) * 256;
if (!safe.fs.writeFileSync(paths.DATA_DIR + '/addons/mysql_vars.sh',
'MYSQL_ROOT_PASSWORD=' + rootPassword +'\nMYSQL_ROOT_HOST=172.18.0.1', 'utf8')) {
return callback(new Error('Could not create mysql var file:' + safe.error.message));
}
const cmd = `docker run --restart=always -d --name="mysql" \
--net cloudron \
--net-alias mysql \
-m ${memoryLimit}m \
--memory-swap ${memoryLimit * 2}m \
-v "${dataDir}/mysql:/var/lib/mysql" \
-v "${dataDir}/addons/mysql_vars.sh:/etc/mysql/mysql_vars.sh:ro" \
--read-only -v /tmp -v /run "${tag}"`;
shell.execSync('startMysql', cmd);
callback();
}
function startPostgresql(callback) {
const tag = infra.images.postgresql.tag;
const dataDir = paths.DATA_DIR;
const rootPassword = hat(8 * 128);
const memoryLimit = (1 + Math.round(os.totalmem()/(1024*1024*1024)/4)) * 256;
if (!safe.fs.writeFileSync(paths.DATA_DIR + '/addons/postgresql_vars.sh', 'POSTGRESQL_ROOT_PASSWORD=' + rootPassword, 'utf8')) {
return callback(new Error('Could not create postgresql var file:' + safe.error.message));
}
const cmd = `docker run --restart=always -d --name="postgresql" \
--net cloudron \
--net-alias postgresql \
-m ${memoryLimit}m \
--memory-swap ${memoryLimit * 2}m \
-v "${dataDir}/postgresql:/var/lib/postgresql" \
-v "${dataDir}/addons/postgresql_vars.sh:/etc/postgresql/postgresql_vars.sh:ro" \
--read-only -v /tmp -v /run "${tag}"`;
shell.execSync('startPostgresql', cmd);
callback();
}
function startMongodb(callback) {
const tag = infra.images.mongodb.tag;
const dataDir = paths.DATA_DIR;
const rootPassword = hat(8 * 128);
const memoryLimit = (1 + Math.round(os.totalmem()/(1024*1024*1024)/4)) * 200;
if (!safe.fs.writeFileSync(paths.DATA_DIR + '/addons/mongodb_vars.sh', 'MONGODB_ROOT_PASSWORD=' + rootPassword, 'utf8')) {
return callback(new Error('Could not create mongodb var file:' + safe.error.message));
}
const cmd = `docker run --restart=always -d --name="mongodb" \
--net cloudron \
--net-alias mongodb \
-m ${memoryLimit}m \
--memory-swap ${memoryLimit * 2}m \
-v "${dataDir}/mongodb:/var/lib/mongodb" \
-v "${dataDir}/addons/mongodb_vars.sh:/etc/mongodb_vars.sh:ro" \
--read-only -v /tmp -v /run "${tag}"`;
shell.execSync('startMongodb', cmd);
callback();
}
function startMail(callback) {
// mail (note: 2525 is hardcoded in mail container and app use this port)
// MAIL_SERVER_NAME is the hostname of the mailserver i.e server uses these certs
// MAIL_DOMAIN is the domain for which this server is relaying mails
// mail container uses /app/data for backed up data and /run for restart-able data
const tag = infra.images.mail.tag;
const dataDir = paths.DATA_DIR;
const fqdn = config.fqdn();
const mailFqdn = config.adminFqdn();
const memoryLimit = Math.max((1 + Math.round(os.totalmem()/(1024*1024*1024)/4)) * 128, 256);
const alertsFrom = 'no-reply@' + config.fqdn();
// TODO: watch for a signal here should the certificate path change. Note that haraka reloads
// config automatically if the contents of the certificate changes (eg, renawal).
certificates.getAdminCertificatePath(function (error, certFilePath, keyFilePath) {
if (error) return callback(error);
settings.getMailConfig(function (error, mailConfig) {
if (error) return callback(error);
shell.execSync('startMail', 'docker rm -f mail || true');
user.getOwner(function (error, owner) {
var alertsTo = [ 'webmaster@cloudron.io' ].concat(error ? [] : owner.email).join(',');
if (!safe.fs.writeFileSync(paths.DATA_DIR + '/addons/mail_vars.ini',
`mail_domain=${fqdn}\nmail_server_name=${mailFqdn}\nalerts_from=${alertsFrom}\nalerts_to=${alertsTo}`, 'utf8')) {
return callback(new Error('Could not create mail var file:' + safe.error.message));
}
var ports = mailConfig.enabled ? '-p 587:2525 -p 993:9993 -p 4190:4190 -p 25:2525' : '';
const cmd = `docker run --restart=always -d --name="mail" \
--net cloudron \
--net-alias mail \
-m ${memoryLimit}m \
--memory-swap ${memoryLimit * 2}m \
-v "${dataDir}/box/mail:/app/data" \
-v "${dataDir}/mail:/run" \
-v "${certFilePath}:/etc/tls_cert.pem:ro" \
-v "${keyFilePath}:/etc/tls_key.pem:ro" \
-v "${dataDir}/addons/mail_vars.ini:/etc/mail.ini:ro" \
${ports} \
--read-only -v /tmp ${tag}`;
shell.execSync('startMail', cmd);
if (!mailConfig.enabled || process.env.BOX_ENV === 'test') return callback();
// Add MX and DMARC record. Note that DMARC policy depends on DKIM signing and thus works
// only if we use our internal mail server.
var records = [
{ subdomain: '_dmarc', type: 'TXT', values: [ '"v=DMARC1; p=reject; pct=100"' ] },
{ subdomain: '', type: 'MX', values: [ '10 ' + config.mailFqdn() + '.' ] }
];
async.mapSeries(records, function (record, iteratorCallback) {
subdomains.upsert(record.subdomain, record.type, record.values, iteratorCallback);
}, callback);
});
});
});
}
function startAddons(existingInfra, callback) {
var startFuncs = [ ];
if (existingInfra.version !== infra.version) {
debug('startAddons: no existing infra or infra upgrade. starting all addons');
startFuncs.push(startGraphite, startMysql, startPostgresql, startMongodb, startMail);
} else {
assert.strictEqual(typeof existingInfra.images, 'object');
if (infra.images.graphite.tag !== existingInfra.images.graphite.tag) startFuncs.push(startGraphite);
if (infra.images.mysql.tag !== existingInfra.images.mysql.tag) startFuncs.push(startMysql);
if (infra.images.postgresql.tag !== existingInfra.images.postgresql.tag) startFuncs.push(startPostgresql);
if (infra.images.mongodb.tag !== existingInfra.images.mongodb.tag) startFuncs.push(startMongodb);
if (infra.images.mail.tag !== existingInfra.images.mail.tag) startFuncs.push(startMail);
debug('startAddons: existing infra. incremental addon create %j', startFuncs.map(function (f) { return f.name; }));
}
async.series(startFuncs, callback);
}
function startApps(existingInfra, callback) {
if (existingInfra.version === infra.version) {
debug('startApp: apps are already uptodate');
callback();
} else if (existingInfra.version === 'none') {
debug('startApps: restoring installed apps');
apps.restoreInstalledApps(callback);
} else {
debug('startApps: reconfiguring installed apps');
apps.configureInstalledApps(callback);
}
}