diff --git a/redmine/defaults/main.yml b/redmine/defaults/main.yml
index 107ac522..7c7d4988 100644
--- a/redmine/defaults/main.yml
+++ b/redmine/defaults/main.yml
@@ -15,6 +15,10 @@ redmine_inst_dir: redmine
 redmine_user: redmine
 redmine_group: '{{ redmine_user }}'
 
+# Ubuntu 14.04: install ruby from a ppa to get a newer version
+redmine_trusty_ruby_repo: 'ppa:brightbox/ruby-ng'
+trusty_ruby_version: 2.3
+
 redmine_sysvinit_service_name: '{{ redmine_inst_name }}'
 redmine_systemd_service_name: 'unicorn@{{ redmine_inst_name }}.service'
 redmine_service_name: '{{ redmine_systemd_service_name }}'
@@ -84,6 +88,7 @@ ruby_use_mod_passenger: False
 ruby_use_unicorn: True
 # Redmine 2.x only
 rm_involvement_plugin: False
+rm_omniauth_plugin: False
 
 # Used by unicorn
 unicorn_listen_port: 4000
@@ -107,6 +112,22 @@ unicorn_apache_modules:
 
 # For Ubuntu trusty
 redmine_base_packages:
+  - subversion
+  - git-core
+  - curl
+  - 'ruby{{ trusty_ruby_version }}'
+  - rails
+  - ruby-rmagick
+  - 'ruby{{ trusty_ruby_version }}-dev'
+  - rails
+  - zlib1g-dev
+  - libpq-dev
+  - libmysqld-dev
+  - libmagickwand-dev
+  - libmagickcore-dev
+  - imagemagick
+
+redmine_bionic_packages:
   - subversion
   - git-core
   - curl
@@ -122,8 +143,6 @@ redmine_base_packages:
   - libmagickcore-dev
   - imagemagick
 
-redmine_bionic_packages: '{{ redmine_base_packages }}'
-
 # For Ubuntu precise
 redmine_base_packages_old_gems:
   - subversion
diff --git a/redmine/tasks/base-packages.yml b/redmine/tasks/base-packages.yml
index 4120b9b3..025bb202 100644
--- a/redmine/tasks/base-packages.yml
+++ b/redmine/tasks/base-packages.yml
@@ -1,7 +1,18 @@
 ---
-- name: Install the packages needed to run the redmine infrastructure. install the ruby packages needed to run redmine. Use ruby 2.0
-  apt: pkg={{ redmine_base_packages }} state=present
-  tags:
-    - ruby
-    - redmine
+- block: 
+  - name: Install a PPA on trusty to get a newer version of ruby
+    apt_repository: repo={{ redmine_trusty_ruby_repo }} state=present update_cache=yes
+
+  - name: Install the packages needed to run the redmine infrastructure. install the ruby packages needed to run redmine, Ubuntu Trusty
+    apt: pkg={{ redmine_base_packages }} state=present cache_valid_time=1800
+  
+  when: is_trusty
+  tags: [ 'ruby', 'redmine' ]
+
+- block:
+  - name: Install the packages needed to run the redmine infrastructure. install the ruby packages needed to run redmine, Ubuntu Bionic
+    apt: pkg={{ redmine_bionic_packages }} state=present cache_valid_time=1800
+  
+  when: is_trusty
+  tags: [ 'ruby', 'redmine' ]
 
diff --git a/redmine/tasks/main.yml b/redmine/tasks/main.yml
index 582a90ea..109741b6 100644
--- a/redmine/tasks/main.yml
+++ b/redmine/tasks/main.yml
@@ -1,8 +1,5 @@
 ---
 - import_tasks: base-packages.yml
-  when: is_trusty
-- import_tasks: system-packages.yml
-  when: is_bionic
 - import_tasks: rubygems.yml
 - import_tasks: redmine.yml
 - import_tasks: redmine-plugins.yml
diff --git a/redmine/tasks/redmine-plugins.yml b/redmine/tasks/redmine-plugins.yml
index 58813136..52406763 100644
--- a/redmine/tasks/redmine-plugins.yml
+++ b/redmine/tasks/redmine-plugins.yml
@@ -324,3 +324,11 @@
   notify:
     - Bundle install and reconfigure redmine
   tags: [ 'redmine', 'redmine_plugins', 'redmine_plugins_involvement_filter' ]
+
+- name: Install the omniauth Oauth plugin
+  git: repo=https://github.com/arlin2050/redmine_omniauth_client.git dest={{ redmine_glob_root_dir }}/{{ redmine_inst_dir }}/plugins/redmine_omniauth_client update=no
+  notify:
+    - Bundle install and reconfigure redmine
+  when: rm_omniauth_plugin
+  tags: [ 'redmine', 'redmine_plugins', 'rm_oauth', 'rm_omniauth' ]
+
diff --git a/redmine/tasks/system-packages.yml b/redmine/tasks/system-packages.yml
deleted file mode 100644
index 2003c21b..00000000
--- a/redmine/tasks/system-packages.yml
+++ /dev/null
@@ -1,6 +0,0 @@
----
-- name: Install the packages needed to run the redmine infrastructure.
-  apt: pkg={{ redmine_bionic_packages }} state=present cache_valid_time=1800
-  tags: [ 'ruby', 'redmine' ]
-
-