rewrite ansible tasks using YAML parameters

playbooks/roles/mongo/handlers/main.yml

 ---
 - name: restart mongo
-  service: name=mongod state=restarted
+  service:
+    name: mongod
+    state: restarted
 

playbooks/roles/mongo/tasks/main.yml

 ---
-- name: check to see that MongoDB 2.4 is not installed
-  stat: path=/etc/init.d/mongodb
+- name: Check to see that MongoDB 2.4 is not installed
+  stat:
+    path: /etc/init.d/mongodb
   register: mongodb_needs_upgrade
   tags:
     - install
     - install:base
 
-- name: verify 2.4 not installed
-  fail: msg="MongoDB 2.4 is currently installed and cannot be safely upgraded in a clustered configuration.  Please read http://docs.mongodb.org/manual/release-notes/2.6-upgrade/#upgrade-considerations and upgrade to 2.6."
+- name: Verify 2.4 not installed
+  fail:
+    msg: "MongoDB 2.4 is currently installed and cannot be safely upgraded in a clustered configuration.  Please read http://docs.mongodb.org/manual/release-notes/2.6-upgrade/#upgrade-considerations and upgrade to 2.6."
   when: mongodb_needs_upgrade.stat.exists and MONGO_CLUSTERED
   tags:
     - install
     - install:base
   
-- name: remove mongo 2.4 if present
-  apt: >
-    pkg=mongodb-10gen
-    state=absent purge=yes
-    force=yes
+- name: Remove mongo 2.4 if present
+  apt:
+    pkg: mongodb-10gen
+    state: absent
+    purge: yes
+    force: yes
   when: mongodb_needs_upgrade.stat.exists and not MONGO_CLUSTERED
   tags:
     - install
     - install:base
   
-- name: install python pymongo for mongo_user ansible module
-  pip: >
-    name=pymongo state=present
-    version={{ pymongo_version }} extra_args="-i {{ COMMON_PYPI_MIRROR_URL }}"
+- name: Install python pymongo for mongo_user ansible module
+  pip:
+    name: pymongo
+    state: present
+    version: "{{ pymongo_version }}"
+    extra_args: "-i {{ COMMON_PYPI_MIRROR_URL }}"
   tags:
     - install
     - install:base
 
-- name: add the mongodb signing key
-  apt_key: >
-    id={{ MONGODB_APT_KEY }}
-    keyserver={{ MONGODB_APT_KEYSERVER }}
-    state=present
+- name: Add the mongodb signing key
+  apt_key:
+    id: "{{ MONGODB_APT_KEY }}"
+    keyserver: "{{ MONGODB_APT_KEYSERVER }}"
+    state: present
   tags:
     - install
     - install:base
 
-- name: add the mongodb repo to the sources list
-  apt_repository: >
-    repo='{{ MONGODB_REPO }}'
-    state=present
+- name: Add the mongodb repo to the sources list
+  apt_repository:
+    repo: "{{ MONGODB_REPO }}"
+    state: present
   tags:
     - install
     - install:base
 
-- name: install mongo server and recommends
-  apt: >
-    pkg=mongodb-org={{ mongo_version }}
-    state=present install_recommends=yes
-    force=yes update_cache=yes
+- name: Install mongo server and recommends
+  apt:
+    name: "mongodb-org={{ mongo_version }}"
+    state: present
+    install_recommends: yes
+    force: yes
+    update_cache: yes
   tags:
     - install
     - install:base
 
-- name: create mongo dirs
-  file: >
-    path="{{ item }}" state=directory
-    owner="{{ mongo_user  }}"
-    group="{{ mongo_user }}"
+- name: Create mongo dirs
+  file:
+    path: "{{ item }}"
+    state: directory
+    owner: "{{ mongo_user  }}"
+    group: "{{ mongo_user }}"
   with_items:
     - "{{ mongo_data_dir }}"
     - "{{ mongo_dbpath }}"
@@ -71,83 +79,97 @@
     - install
     - install:base
 
-- name: stop mongod service
-  service: name=mongod state=stopped
+- name: Stop mongod service
+  service:
+    name: mongod
+    state: stopped
   tags:
     - manage
     - manage:stop
 
-- name: move mongodb to {{ mongo_data_dir }}
-  command: >
-    mv /var/lib/mongodb  {{ mongo_data_dir}}/.
-    creates={{ mongo_data_dir }}/mongodb
+- name: Move mongodb to {{ mongo_data_dir }}
+  command: "mv /var/lib/mongodb  {{ mongo_data_dir}}/."
+  args:
+    creates: "{{ mongo_data_dir }}/mongodb"
   tags:
     - install
     - install:base
 
-- name: copy mongodb key file
-  copy: >
-    content="{{ MONGO_CLUSTER_KEY }}"
-    dest={{ mongo_key_file }}
-    mode=0600
-    owner=mongodb
-    group=mongodb
+- name: Copy mongodb key file
+  copy:
+    content: "{{ MONGO_CLUSTER_KEY }}"
+    dest: "{{ mongo_key_file }}"
+    mode: "0600"
+    owner: mongodb
+    group: mongodb
   when: MONGO_CLUSTERED
   tags:
     - install
     - install:configuration
 
-- name: copy configuration template
-  template: src=mongodb.conf.j2 dest=/etc/mongod.conf backup=yes
-  notify: restart mongo
+- name: Copy configuration template
+  template:
+    src: "mongodb.conf.j2"
+    dest: "/etc/mongod.conf"
+    backup: yes
+  notify:
+    - restart mongo
   tags:
     - install
     - install:configuration
 
-- name: start mongo service
-  service: name=mongod state=started
+- name: Start mongo service
+  service:
+    name: mongod
+    state: started
   tags:
     - manage
     - manage:start
 
-- name: wait for mongo server to start
-  wait_for: port=27017 delay=2
+- name: Wait for mongo server to start
+  wait_for:
+    port: 27017 
+    delay: 2
   tags:
     - manage
     - manage:start
 
-- name: drop super user script
-  template: src="create_root.js.j2" dest="/tmp/create_root.js"
+- name: Drop super user script
+  template:
+    src: "create_root.js.j2"
+    dest: "/tmp/create_root.js"
   when: not MONGO_CLUSTERED
   tags:
     - install
     - install:configuration
 
-- name: create super user with js
-  shell: >
-    /usr/bin/mongo admin /tmp/create_root.js
+- name: Create super user with js
+  shell: "/usr/bin/mongo admin /tmp/create_root.js"
   when: not MONGO_CLUSTERED
   tags:
     - install
     - install:configuration
 
-- name: delete super user script
-  file: path=/tmp/create_root.js state=absent
+- name: Delete super user script
+  file:
+    path: /tmp/create_root.js
+    state: absent
   when: not MONGO_CLUSTERED
   tags:
     - install
     - install:configuration
 
 - name: Create the file to initialize the mongod replica set
-  template: src=repset_init.js.j2 dest=/tmp/repset_init.js
+  template:
+    src: "repset_init.js.j2"
+    dest: "/tmp/repset_init.js"
   when: MONGO_CLUSTERED
   tags:
     - install
     - install:configuration
 
 - name: Initialize the replication set
-  shell: >
-    /usr/bin/mongo /tmp/repset_init.js
+  shell: "/usr/bin/mongo /tmp/repset_init.js"
   when: MONGO_CLUSTERED
   tags:
     - install
@@ -157,81 +179,72 @@
 #  file: path=/tmp/repset_init.js state=absent
 #  when: MONGO_CLUSTERED
 
-- name: create a mongodb user
-  mongodb_user: >
-    database={{ item.database }}
-    login_user={{ MONGO_ADMIN_USER }}
-    login_password={{ MONGO_ADMIN_PASSWORD }}
-    name={{ item.user }}
-    password="{{ item.password }}"
-    roles={{ item.roles }}
-    state=present
-  with_items: MONGO_USERS
+- name: Create a mongodb user
+  mongodb_user:
+    database: "{{ item.database }}"
+    login_user: "{{ MONGO_ADMIN_USER }}"
+    login_password: "{{ MONGO_ADMIN_PASSWORD }}"
+    name: "{{ item.user }}"
+    password: "{{ item.password }}"
+    roles: "{{ item.roles }}"
+    state: present
+  with_items: "{{ MONGO_USERS }}"
   when: not MONGO_CLUSTERED
   tags:
     - manage
     - manage:app-users
 
-- name: create a mongodb user
-  mongodb_user: >
-    database={{ item.database }}
-    login_user={{ MONGO_ADMIN_USER }}
-    login_password={{ MONGO_ADMIN_PASSWORD }}
-    name={{ item.user }}
-    password="{{ item.password }}"
-    roles={{ item.roles }}
-    state=present
-    replica_set={{ mongo_repl_set }}
-  with_items: MONGO_USERS
+- name: Create a mongodb user
+  mongodb_user:
+    database: "{{ item.database }}"
+    login_user: "{{ MONGO_ADMIN_USER }}"
+    login_password: "{{ MONGO_ADMIN_PASSWORD }}"
+    name: "{{ item.user }}"
+    password: "{{ item.password }}"
+    roles: "{{ item.roles }}"
+    state: present
+    replica_set: "{{ mongo_repl_set }}"
+  with_items: "{{ MONGO_USERS }}"
   when: MONGO_CLUSTERED
   tags:
     - manage
     - manage:app-users
 
-- name: install s3cmd
-  pip: >
-    name="s3cmd"
-    state=present
-    extra_args="-i {{ COMMON_PYPI_MIRROR_URL }}"
+- name: Install s3cmd
+  pip:
+    name: "s3cmd"
+    state: present
+    extra_args: "-i {{ COMMON_PYPI_MIRROR_URL }}"
   when: MONGO_S3_BACKUP
   tags:
     - install
     - install:app-requirements
 
-- name: configure s3cmd
-  template: >
-    dest="{{ MONGO_S3_S3CMD_CONFIG }}"
-    src=mongo-s3-backup-s3cfg.j2
-    owner=root
-    group=root
-    mode=0600
-  when: MONGO_S3_BACKUP
-  tags:
-    - install
-    - install:configuration
-
-- name: install backup-mongo-to-s3 script
-  template: >
-    src=backup-mongo-to-s3.j2
-    dest=/edx/bin/backup-mongo-to-s3.sh
-    owner=root
-    group=root
-    mode=0700
+- name: Configure s3cmd and install backup-mongo-to-s3 script
+  template:
+    dest: "{{ item.dest }}"
+    src: "{{ item.src }}"
+    owner: root
+    group: root
+    mode: "{{ item.mode }}"
   when: MONGO_S3_BACKUP
+  with_items:
+    - { src: 'mongo-s3-backup-s3cfg.j2', dest: '{{ MONGO_S3_S3CMD_CONFIG }}', mode: '0600' }
+    - { src: 'backup-mongo-to-s3.j2', dest: '/edx/bin/backup-mongo-to-s3.sh', mode: '0700' }
   tags:
     - install
     - install:configuration
 
-- name: schedule backup-mongo-to-3s crontab
+- name: Schedule backup-mongo-to-3s crontab
   cron: 
-    name="backup-mongo-to-s3"
-    job="/edx/bin/backup-mongo-to-s3.sh"
-    backup=yes
-    cron_file=backup-mongo-to-s3
-    user=root
-    hour="{{ MONGO_S3_BACKUP_HOUR }}"
-    minute="0"
-    day="{{ MONGO_S3_BACKUP_DAY }}"
+    name: "backup-mongo-to-s3"
+    job: "/edx/bin/backup-mongo-to-s3.sh"
+    backup: yes
+    cron_file: backup-mongo-to-s3
+    user: root
+    hour: "{{ MONGO_S3_BACKUP_HOUR }}"
+    minute: "0"
+    day: "{{ MONGO_S3_BACKUP_DAY }}"
   when: MONGO_S3_BACKUP
   tags:
     - install