WIP: feat(jenkins): add role to deploy jenkins

roles/jenkins/defaults/container.yml

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+---
+jenkins_container_name: "jenkins"
+jenkins_container_image: >-2
+  {{
+    [
+      jenkins_container_image_repository,
+      jenkins_container_image_tag
+        | default(jenkins_version + (
+          ((jenkins_container_image_flavour is string)
+            and (jenkins_container_image_flavour | length > 0))
+          | ternary(
+            '-' + jenkins_container_image_flavour | default('', true),
+            ''
+          )
+        ))
+    ] | join(':')
+  }}
+jenkins_container_image_registry: docker.io
+jenkins_container_image_namespace: jenkins
+jenkins_container_image_name: jenkins
+jenkins_container_image_repository: >-2
+  {{
+    [
+      jenkins_container_image_registry | default([], true),
+      jenkins_container_image_namespace | default([], true),
+      jenkins_container_image_name
+    ] | flatten | join('/')
+  }}
+jenkins_container_image_source: "pull"
+jenkins_container_image_tag: ~
+jenkins_container_image_flavour: "jdk17"
+jenkins_container_env: ~
+jenkins_container_ports: ~
+jenkins_container_networks: ~
+jenkins_container_etc_hosts: ~
+jenkins_container_base_volumes:
+  - "{{ jenkins_home_path }}:/var/jenkins_home"
+jenkins_container_volumes: ~
+jenkins_container_all_volumes: >-2
+  {{ jenkins_container_base_volumes | default([], true)
+     + jenkins_container_volumes | default([], true) }}

roles/jenkins/defaults/main.yml

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+---
+jenkins_user: "jenkins"
+jenkins_versions:
+  lts: "2.479.3"
+  weekly: "2.496"
+jenkins_version_channel: "lts"
+jenkins_version: "{{ jenkins_versions[jenkins_version_channel] }}"
+
+jenkins_home_path: "/var/lib/jenkins"

roles/jenkins/tasks/main.yml

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+---
+- name: Ensure jenkins user '{{ jenkins_user }}' is {{ jenkins_state }}
+  ansible.builtin.user:
+    name: "{{ jenkins_user }}"
+    state: "{{ jenkins_state }}"
+    system: true
+  register: jenkins_user_info
+
+- name: Ensure jenkins is deployed using {{ jenkins_deployment_method }}
+  ansible.builtin.include_tasks:
+    file: "deploy-{{ jenkins_deployment_method }}.yml"

roles/jenkins/vars/main.yml

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+---
+jenkins_states:
+  - absent
+  - present
+jenkins_deployment_methods:
+  - docker
+jenkins_version_channels:
+  - "lts"
+  - "weekly"