ansible/roles/application-install/tasks/install.yml

---
- name: Helm init and upgrade
  command: |
     {{ helm_bin_dir }}/helm init
     --upgrade
     --skip-refresh
  changed_when: true # init is always changed type of action

#A correct way to implement this would be using --wait option in helm init invocation.
#However, it does not work due to https://github.com/helm/helm/issues/4031 (fixed in newer helm release)
- name: "Wait for helm upgrade to finish"
  command: "{{ helm_bin_dir }}/helm version --tiller-connection-timeout 10"
  register: result
  until: result.rc == 0
  delay: 10
  retries: 12
  changed_when: false # for idempotency

- name: Get all helm repos
  command: "{{ helm_bin_dir }}/helm repo list"
  register: repos
  changed_when: false # for idempotency

- name: Remove stable repo
  command: "{{ helm_bin_dir }}/helm repo remove stable"
  changed_when: true # when executed its a changed type of action
  when: "'stable' in repos.stdout"

- name: Helm Serve
  shell: "{{ helm_bin_dir }}/helm serve &"
  async: 45
  poll: 3 # wait 3sec to get a chance for some stderr
  register: helm_serve
  changed_when: "'address already in use' not in helm_serve.stderr"

- name: List helm repos
  command: "{{ helm_bin_dir }}/helm repo list"
  register: helm_repo_list
  changed_when: false # for idempotency
  failed_when:
    - helm_repo_list.rc > 0
    - "'Error: no repositories to show' not in helm_repo_list.stderr"

- name: Helm Add Repo
  command: "{{ helm_bin_dir }}/helm repo add {{ helm_repository_name }} {{ helm_repository_url }}"
  when: "'local' not in helm_repo_list.stdout"
  changed_when: true # when executed its a changed type of action

- name: Build local helm repository
  make:
    chdir: "{{ app_helm_charts_infra_directory }}"
    target: "{{ item }}"
  with_items: "{{ app_helm_build_targets }}"
  environment:
    PATH: "{{ helm_bin_dir }}:{{ ansible_env.PATH }}"

- name: Register root certificate
  slurp:
    src: "{{ playbook_dir }}/certs/rootCA.crt"
  register: root_cert
  delegate_to: localhost

# WA: this is required because deploy plugin dont process params properly
- name: Create override file with global.cacert
  copy:
    dest: "{{ app_data_path }}/override.yaml"
    content: |
      global:
        cacert: |
          {{ root_cert['content'] | b64decode | indent( width=4, indentfirst=False) }}

- name: Check for deploy plugin presence
  stat:
    path: '{{ helm_home_dir.stdout }}/plugins/deploy/deploy.sh'
  register: deploy_plugin_presence

- name: "Helm Install application {{ app_name }}"
  command: >
          {{ helm_bin_dir }}/helm
          {{ 'deploy' if deploy_plugin_presence.stat.exists else 'install --name' }}
          {{ app_helm_release_name }}
          {{ helm_repository_name }}/{{ app_helm_chart_name }}
          --namespace {{ app_kubernetes_namespace }}
          -f {{ app_data_path }}/override.yaml
  changed_when: true # when executed its a changed type of action