diff --git a/.codeclimate.yml b/.codeclimate.yml
new file mode 100644
index 000000000..54e14b269
--- /dev/null
+++ b/.codeclimate.yml
@@ -0,0 +1,48 @@
+---
+engines:
+  brakeman:
+    enabled: true
+  bundler-audit:
+    enabled: true
+  csslint:
+    enabled: true
+  coffeelint:
+    enabled: true
+  duplication:
+    enabled: true
+    config:
+      languages:
+      - ruby
+      - javascript
+      - python
+      - php
+  eslint:
+    enabled: true
+  fixme:
+    enabled: true
+  phpmd:
+    enabled: true
+  rubocop:
+    enabled: true
+ratings:
+  paths:
+  - Gemfile.lock
+  - "**.erb"
+  - "**.haml"
+  - "**.rb"
+  - "**.rhtml"
+  - "**.slim"
+  - "**.css"
+  - "**.coffee"
+  - "**.inc"
+  - "**.js"
+  - "**.jsx"
+  - "**.module"
+  - "**.php"
+  - "**.py"
+exclude_paths:
+- config/
+- db/
+- script/
+- test/
+- vendor/
diff --git a/.pkgr.yml b/.pkgr.yml
index 1a1429b9e..68e6b8d78 100644
--- a/.pkgr.yml
+++ b/.pkgr.yml
@@ -2,24 +2,23 @@ notifications: false
 targets:
   centos-6:
     dependencies:
-      - httpd
-      - postgresql
+      - nginx
       - postgresql-server
-      - postgresql-devel
   centos-7:
     dependencies:
-      - httpd
-      - postgresql
+      - nginx
       - postgresql-server
-      - postgresql-devel
   debian-8:
     dependencies:
+      - nginx
       - postgresql
   ubuntu-16.04:
     dependencies:
+      - nginx
       - postgresql
   sles-12:
     dependencies:
+      - nginx
       - postgresql
 before:
   - uname -a
@@ -31,7 +30,7 @@ before:
 env:
   - RAILS_ENV=production
   - PORT=3000
-  - RAILS_SERVE_STATIC_FILES=true
 services:
   - postgres
-after_install: contrib/pkgr-postinstall.sh
+before_install: contrib/packager.io/preinstall.sh
+after_install: contrib/packager.io/postinstall.sh
diff --git a/contrib/pkgr-postinstall.sh b/contrib/packager.io/postinstall.sh
similarity index 88%
rename from contrib/pkgr-postinstall.sh
rename to contrib/packager.io/postinstall.sh
index 80ee532d8..86561ac5c 100755
--- a/contrib/pkgr-postinstall.sh
+++ b/contrib/packager.io/postinstall.sh
@@ -10,9 +10,9 @@ DB="zammad_production"
 DB_USER="zammad"
 
 # check which init system is used
-if [ -n $(which initctl) ]; then
+if [ -n "$(which initctl)" ]; then
     INIT_CMD="initctl"
-elif [ -n $(which systemctl) ]; then
+elif [ -n "$(which systemctl)" ]; then
     INIT_CMD="systemctl"
 else
     function sysvinit () {
@@ -36,6 +36,14 @@ else
     # create new password
     DB_PASS="$(tr -dc A-Za-z0-9 < /dev/urandom | head -c10)"
 
+    if [ -n "$(which postgresql-setup)" ]; then
+	echo "preparing postgresql server"
+	postgresql-setup initdb
+	
+	echo "restarting postgresql server"
+	${INIT_CMD} restart postgresql
+    fi
+
     # create database
     echo "# database.yml not found. Creating new db..."
     su - postgres -c "createdb -E UTF8 ${DB}"
@@ -58,7 +66,7 @@ echo "# Starting Zammad"
 ${INIT_CMD} start zammad
 
 # nginx config
-if [ -n $(which nginx) ]; then
+if [ -n "$(which nginx)" ]; then
     # copy nginx config
     # debian / ubuntu
     if [ -d /etc/nginx/sites-enabled ]; then
diff --git a/contrib/packager.io/preinstall.sh b/contrib/packager.io/preinstall.sh
new file mode 100755
index 000000000..1bc7e735f
--- /dev/null
+++ b/contrib/packager.io/preinstall.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+#
+# packager.io preinstall script
+#
+
+PATH=/opt/zammad/bin:/opt/zammad/vendor/bundle/bin:/sbin:/bin:/usr/sbin:/usr/bin:
+
+# install epel-release on centos (needed for nginx)
+if [ -n "$(which yum)" ]; then
+    yum install -y epel-release
+fi
+