library/roles/mongodb-org-3.2: Change the playbook so that it's possibile to install the client package only.

mongodb-org-3.2/defaults/main.yml

@@ -1,10 +1,21 @@
 ---
 mongodb_install_from_external_repo: True
 mongodb_install_packages: True
+mongodb_install_server: True
 mongodb_install_conf: True
 mongodb_upgrade_from_older_version: False
 # Set to 'latest' if you want to get the latest available package
 mongodb_pkg_state: present
+mongodb_server_pkgs:
+  - mongodb-org
+  - mongodb-org-mongos
+  - mongodb-org-server
+  - mongodb-org-shell
+  - mongodb-org-tools
+
+mongodb_client_pkgs:
+  - mongodb-org-shell
+
 mongodb_start_server: 'yes'
 mongodb_tcp_port: 27017
 mongo_bind_ip: 0.0.0.0

mongodb-org-3.2/tasks/mongodb.yml

@@ -1,4 +1,5 @@
 ---
+- block:
     - name: Check if Service mongod Exists
       stat: path=/etc/init/mongod
       register: service_mongod_status
@@ -11,84 +12,78 @@
         - mongodb_start_server is defined
         - mongodb_start_server == 'no'
         - mongodb_install_conf
+
+  when: mongodb_install_server
   tags: mongodb 
 
+- block:
     - name: Install the mongodb apt key
       #apt_key: id=7F0CEB10 state=present
       raw: apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv EA312927
       when: mongodb_install_from_external_repo
-  tags: mongodb
 
     - name: Remove the old mongo apt repositories
       apt_repository: repo="{{ item }}" state=absent
       with_items:
         - "deb http://repo.mongodb.org/apt/ubuntu {{ ansible_distribution_release }}/mongodb-org/3.0 multiverse"
         - "deb http://downloads-distro.mongodb.org/repo/ubuntu-upstart dist 10gen"
-  when:
-    - mongodb_upgrade_from_older_version
-  tags: mongodb
+      when: mongodb_upgrade_from_older_version
 
     - name: Install the mongodb repository
       apt_repository: repo="deb http://repo.mongodb.org/apt/ubuntu {{ ansible_distribution_release }}/mongodb-org/3.2 multiverse" update_cache=yes state=present
-  when: mongodb_install_from_external_repo
-  tags: mongodb
 
+  when: mongodb_install_from_external_repo 
+  tags: [ 'mongodb', 'mongodb_client', 'mongodb_repo' ]
+
+- block:
     - name: Install the mongodb 3.2 configuration
       template: src=mongod-3.2.conf.j2 dest=/etc/mongod.conf owner=root group=root mode=0444
       when: mongodb_install_conf
       notify: Restart mongodb
-  tags: mongodb
 
-- name: We are upgrading, install the latest version of the mongo packages
+    - name: We are upgrading, install the latest version of the mongodb packages
       apt: pkg={{ item }} state=latest
-  with_items:
-    - mongodb-org
-    - mongodb-org-mongos
-    - mongodb-org-server
-    - mongodb-org-shell
-    - mongodb-org-tools
+      with_items: '{{ mongodb_server_pkgs }}'
       when:
         - mongodb_install_from_external_repo
         - mongodb_install_packages
         - mongodb_upgrade_from_older_version
-  tags: mongodb
 
-- name: Install the mongodb mongodb packages
+    - name: Install the mongodb packages
       apt: pkg={{ item }} state={{ mongodb_pkg_state }}
-  with_items:
-    - mongodb-org
-    - mongodb-org-mongos
-    - mongodb-org-server
-    - mongodb-org-shell
-    - mongodb-org-tools
+      with_items: '{{ mongodb_server_pkgs }}'
       when:
         - mongodb_install_from_external_repo
         - mongodb_install_packages
-  tags: mongodb
 
     - name: Create the mongodb log directory
       file: dest={{ mongodb_logdir }} state=directory owner={{ mongodb_user }} group={{ mongodb_group }} mode=0755
       when: mongodb_install_conf
-  tags: mongodb
 
     - name: Create the mongodb db directory
       file: dest={{ mongodb_dbpath }} state=directory owner={{ mongodb_user }} group={{ mongodb_group }} mode=0755
       when: mongodb_install_conf
-  tags: mongodb
 
     - name: Install the mongodb defaults file
       template: src=mongod-default.j2 dest=/etc/default/mongod owner=root group=root mode=0444
       when: mongodb_install_conf
       notify: Restart mongodb
-  tags: mongodb
 
     - name: Install the cron job that manages log files rotation
       template: src=mongo_log_rotate.sh.j2 dest=/etc/cron.daily/mongo_log_rotate owner=root group=root mode=0555
       when: not mongodb_systemlog_external_logrotate
-  tags: [ 'mongodb', 'mongo_logrotate' ]
 
     - name: Ensure mongodb is started and enabled
       service: name=mongod state=started enabled=yes
       when: ( mongodb_start_server is defined ) and ( mongodb_start_server == 'yes' ) and ( mongodb_install_conf )
+
+  when: mongodb_install_server
   tags: mongodb
 
+- block:
+    - name: Install the mongodb client packages
+      apt: pkg={{ item }} state={{ mongodb_pkg_state }}
+      with_items: '{{ mongodb_client_pkgs }}'
+
+  when: not mongodb_install_server
+  tags: [ 'mongodb', 'mongodb_client' ]