manifest: add runtimeDirs

src/docker.js

@@ -315,6 +315,13 @@ async function createSubcontainer(app, name, cmd, options) {
     const mounts = await getMounts(app);
 
     const addonEnv = await services.getEnvironment(app);
+    const runtimeVolumes = {
+        '/tmp': {},
+        '/run': {}
+    };
+    if (app.manifest.runtimeDirs) {
+        app.manifest.runtimeDirs.forEach(dir => runtimeVolumes[dir] = {});
+    }
 
     let containerOptions = {
         name: name, // for referencing containers
@@ -323,10 +330,7 @@ async function createSubcontainer(app, name, cmd, options) {
         Cmd: (isAppContainer && app.debugMode && app.debugMode.cmd) ? app.debugMode.cmd : cmd,
         Env: stdEnv.concat(addonEnv).concat(portEnv).concat(appEnv).concat(secondaryDomainsEnv),
         ExposedPorts: isAppContainer ? exposedPorts : { },
-        Volumes: { // see also ReadonlyRootfs
-            '/tmp': {},
-            '/run': {}
-        },
+        Volumes: runtimeVolumes,
         Labels: {
             'fqdn': app.fqdn,
             'appId': app.id,