ansible-roles/tomcat-apache-requirements/tasks/packages.yml

---
- name: Install the postgresql command line client
  apt: pkg={{ item }} state=present
  with_items:
    - postgresql-client
  when: tomcat_install_jdbc is defined and tomcat_install_jdbc
  tags: [ 'postgres', 'postgresql', 'tomcat' ]

- name: Install the mongodb client
  apt: pkg={{ item }} state=present
  with_items:
    - mongodb-clients
  when:
    - mongodb is not defined
    - install_mongodb_client is defined and install_mongodb_client
  tags: [ 'mongodb', 'tomcat' ]