allow 1.2 times RAM

This is basically to allow 2 phabricators and another small app with
no warning on a 4gb droplet :-)

installer/systemd/box-setup.sh

@@ -19,7 +19,7 @@ fi
 
 # all sizes are in mb
 readonly physical_memory=$(free -m | awk '/Mem:/ { print $2 }')
-readonly swap_size="${physical_memory}"
+readonly swap_size="${physical_memory}" # if you change this, fix enoughResourcesAvailable() in client.js
 readonly app_count=$((${physical_memory} / 200)) # estimated app count
 readonly disk_size_gb=$(fdisk -l ${disk_device} | grep "Disk ${disk_device}" | awk '{ print $3 }')
 readonly disk_size=$((disk_size_gb * 1024))

src/constants.js

@@ -9,6 +9,6 @@ exports = module.exports = {
     ADMIN_CLIENT_ID: 'webadmin', // oauth client id
     ADMIN_APPID: 'admin', // admin appid (settingsdb)
 
-    DEFAULT_MEMORY_LIMIT: (256 * 1024 * 1024)
+    DEFAULT_MEMORY_LIMIT: (256 * 1024 * 1024) // see also client.js
 };
 

webadmin/src/js/client.js

@@ -6,8 +6,8 @@
 angular.module('Application').service('Client', ['$http', 'md5', 'Notification', function ($http, md5, Notification) {
     var client = null;
 
-    // Keep this in sync with docs and docker.js
-    var DEFAULT_MEMORY_LIMIT = 1024 * 1024 * 200;
+    // Keep this in sync with docs and constants.js, docker.js
+    var DEFAULT_MEMORY_LIMIT = 1024 * 1024 * 256;
 
     function ClientError(statusCode, messageOrObject) {
         Error.call(this);
@@ -762,10 +762,11 @@ angular.module('Application').service('Client', ['$http', 'md5', 'Notification',
     };
 
     Client.prototype.enoughResourcesAvailable = function (app) {
-        var needed = app.manifest.memoryLimit || DEFAULT_MEMORY_LIMIT;
+        var needed = app.manifest.memoryLimit || DEFAULT_MEMORY_LIMIT; // RAM+Swap
         var used = this.getInstalledApps().reduce(function (prev, cur) { return prev + (cur.manifest.memoryLimit || DEFAULT_MEMORY_LIMIT); }, 0);
         var roundedMemory = Math.round(this.getConfig().memory / (1024 * 1024 * 1024)) * 1024 * 1024 * 1024; // round to nearest GB
-        var available = (roundedMemory || 0) - used;
+        var totalMemory = roundedMemory * 1.2; // box-setup.sh creates equal amount of swap. 1.2 factor is arbitrary
+        var available = (totalMemory || 0) - used;
 
         return (available - needed) >= 0;
     };