make baseImage an array

baseimage/initializeBaseUbuntuImage.sh

@@ -156,7 +156,7 @@ apt-get install -y python   # Install python which is required for npm rebuild
 
 echo "==== Downloading docker images ===="
 if [ -f ${SOURCE_DIR}/infra_version.js ]; then
-    images=$(node -e "var i = require('${SOURCE_DIR}/infra_version.js'); console.log(i.baseImage, Object.keys(i.images).map(function (x) { return i.images[x].tag; }).join(' '));")
+    images=$(node -e "var i = require('${SOURCE_DIR}/infra_version.js'); console.log(i.baseImages.join(' '), Object.keys(i.images).map(function (x) { return i.images[x].tag; }).join(' '));")
 
     echo "Pulling images: ${images}"
     for image in ${images}; do

src/infra_version.js

@@ -8,7 +8,7 @@ exports = module.exports = {
     // a version bump means that all containers (apps and addons) are recreated
     'version': 40,
 
-    'baseImage': 'cloudron/base:0.8.1',
+    'baseImages': [ 'cloudron/base:0.8.1', 'cloudron/base:0.9.0' ],
 
     'images': {
         'mysql': { repo: 'cloudron/mysql', tag: 'cloudron/mysql:0.12.0' },