1. Add roles/functionality in usual places like roles and machines.yml files
2. Replicate the same in molecule tests under playbook.yml
3. Write TDD tests to validate the ansible scripts

• To fix under molecule runner "Failed to import the required Python library (setuptools) on instance's Python /usr/bin/python. Please read module documentation and install in the appropriate location. If the required library is installed, but Ansible is using the wrong Python interpreter, please consult the documentation on ansible_python_interpreter under playbook.yml

ansible_python_interpreter: /usr/bin/python3

• Also host entries won't work in docker because of https://stackoverflow.com/questions/28327458/how-to-add-my-containers-hostname-to-etc-hosts

add_host_entries: false

1. Setup wizard appear even when jenkins.install.runSetupWizard=false

Fix is to add the following to geerlingguy.jenkins role task

- name: Fix a defect to disable setup wizard
  jenkins_script:
    script: |
      import static jenkins.model.Jenkins.instance as jenkins
      import jenkins.install.InstallState
      if (!jenkins.installState.isSetupComplete()) {
        InstallState.INITIAL_SETUP_COMPLETED.initializeState()
      }
    user: "{{ admin.userid }}"
    password: "{{ admin.password }}"

2. Plugin installation fails so added retries, see https://github.com/geerlingguy/ansible-role-jenkins/issues/169 so added following four lines to plugins.yml task

  retries: 2                # https://github.com/geerlingguy/ansible-role-jenkins/issues/169
  delay: 3
  register: result            # <<<
  until: result is succeeded  # <<<
 

2. Because of a bug, wizard will show even after successful installation of Jenkins

Fix is to add the following task as disable-wizard.yml and call it from main.yml

see https://github.com/geerlingguy/ansible-role-jenkins/issues/181

- name: Fix a defect to disable setup wizard
  jenkins_script:
    script: |
      import static jenkins.model.Jenkins.instance as jenkins
      import jenkins.install.InstallState
      if (!jenkins.installState.isSetupComplete()) {
        InstallState.INITIAL_SETUP_COMPLETED.initializeState()
      }
    user: "{{ jenkins_admin_username }}"
    password: "{{ jenkins_admin_password }}"

• Verify the gitlab works fine locally in VM because of docker bug on Travis

• For molecule tests you need to use the following configs apart from usual provisioning/gitlab.yml

  vars:
    gitlab_restart_handler_failed_when: false

  pre_tasks:
    - name: Update apt cache.
      apt: update_cache=yes cache_valid_time=600
      when: ansible_os_family == 'Debian'
      changed_when: false

    - name: Remove the .dockerenv file so GitLab Omnibus doesn't get confused.
      file:
        path: /.dockerenv
        state: absent
        

• For ubuntu 18.04, we need to install gnupg2 https://github.com/geerlingguy/ansible-role-gitlab/issues/145

- name: Install GitLab dependencies (Debian).
  apt:
    name: gnupg2
    state: present
  when: ansible_os_family == 'Debian'
  

• Don't forget to add machine's host name in hosts_entry.yml once you a add new box.
• Ensure host entries are working fine in VM, cant test hosts entries in docker because of its nature see - https://stackoverflow.com/questions/28327458/how-to-add-my-containers-hostname-to-etc-hosts

• Skipping 204 line too long for sake of sanity
• Skipping 306 test as it doesn't apply to Debian - https://github.com/geerlingguy/ansible-role-docker/issues/191