WIP: feat(docker): add support for redhat targets

playbooks/bootstrap.yml

@@ -4,7 +4,7 @@
   become: "{{ target_host_become | default(true, false) }}"
   gather_facts: false
   pre_tasks:
-    - name: Gather information about the target system
+    - name: Gather information about the target system id
       ansible.builtin.raw: "cat /etc/os-release | grep '^ID=' | cut -d '=' -f2"
       register: target_host_os_info
       check_mode: false
@@ -13,6 +13,16 @@
       ansible.builtin.set_fact:
         target_host_system_id: "{{ target_host_os_info.stdout_lines | first | trim }}"
       delegate_to: localhost
+    - name: Gather information about the target system version
+      ansible.builtin.raw: "cat /etc/os-release | grep '^VERSION_ID=' | cut -d '=' -f2"
+      register: target_host_os_info_version
+      check_mode: false
+      changed_when: false
+    - name: Set /etc/os-release system version id
+      ansible.builtin.set_fact:
+        target_host_system_version_id: "{{ target_host_os_info_version.stdout_lines | first | trim }}"
+      delegate_to: localhost
+
   tasks:
     - name: Ensure apt bootstrap packages are installed
       ansible.builtin.raw: "apt install {{ apt_bootstrap_packages | join(' ') }}"
@@ -21,6 +31,22 @@
       changed_when:
         - "'0 upgraded' not in target_host_apt_info.stdout_lines | last"
         - "'0 newly installed' not in target_host_apt_info.stdout_lines | last"
+    - name: Ensure dnf < 4 bootstrap packages are installed
+      ansible.builtin.raw: "dnf install --assumeyes {{ dnf4_bootstrap_packages | join(' ') }}"
+      register: target_host_dnf_info
+      when:
+        - target_host_system_id in targets_using_dnf4.keys()
+        - target_host_system_version_id | int < targets_using_dnf4[target_host_system_id]
+      changed_when:
+        - "(target_host_dnf_info.stdout_lines | last) != 'Nothing to do.'"
+    - name: Ensure dnf5 bootstrap packages are installed
+      ansible.builtin.raw: "dnf install --assumeyes {{ dnf5_bootstrap_packages | join(' ') }}"
+      register: target_host_dnf_info
+      when:
+        - target_host_system_id in targets_using_dnf5.keys()
+        - target_host_system_version_id | int >= targets_using_dnf5[target_host_system_id]
+      changed_when:
+        - "(target_host_dnf_info.stdout_lines | last) != 'Nothing to do.'"
     - name: Sort hosts into os-specific groups
       ansible.builtin.group_by:
         key: >-2
@@ -38,3 +64,15 @@
     apt_bootstrap_packages:
       - python3
       - python3-apt
+    # default package manager is dnf5 since fedora 41
+    # https://fedoraproject.org/wiki/Changes/SwitchToDnf5#Current_status
+    targets_using_dnf4:
+      fedora: 41
+    targets_using_dnf5:
+      fedora: 41
+    dnf4_bootstrap_packages:
+      - python3
+      - python3-dnf
+      - python3-libdnf
+    dnf5_bootstrap_packages:
+      - python3-libdnf5

playbooks/packages.yml

@@ -13,3 +13,12 @@
         loop_var: package
         label: "{{ package.name }}"
       when: ansible_facts['pkg_mgr'] == 'apt'
+    - name: Install packages (dnf)
+      ansible.builtin.dnf:
+        name: "{{ package.name }}"
+        state: "{{ package.state | default('present') }}"
+      loop: "{{ system_packages | default([], true) }}"
+      loop_control:
+        loop_var: package
+        label: "{{ package.name }}"
+      when: ansible_facts['pkg_mgr'] in ['dnf', 'dnf5', 'yum']

roles/docker/defaults/main/fedora.yml

@@ -0,0 +1,34 @@
+---
+docker_fedora_repo_name: "docker-ce-stable"
+docker_fedora_repo_description: "Docker CE Stable - $basearch"
+docker_fedora_repo_url: "https://download.docker.com/linux/fedora/$releasever/$basearch/stable"
+docker_fedora_repo_validate_certs: true
+docker_fedora_repo_gpg_check: true
+docker_fedora_repo_gpg_key: "https://download.docker.com/linux/fedora/gpg"
+
+docker_fedora_cli_package: "docker-ce-cli"
+docker_fedora_plugin_buildx_package: "docker-buildx-plugin"
+docker_fedora_plugin_compose_package: "docker-compose-plugin"
+docker_fedora_base_packages:
+  - "docker-ce"
+  - "docker-ce-cli"
+  - "containerd.io"
+docker_fedora_packages: >-2
+  {{
+    docker_fedora_base_packages
+    + (docker_plugin_buildx_enable | default(false)
+      | ternary([ docker_fedora_plugin_buildx_package ], []))
+    + (docker_plugin_compose_enable | default(false)
+      | ternary([ docker_fedora_plugin_compose_package ], []))
+  }}
+docker_fedora_legacy_packages:
+  - "docker"
+  - "docker-client"
+  - "docker-client-latest"
+  - "docker-common"
+  - "docker-latest"
+  - "docker-latest-logrotate"
+  - "docker-logrotate"
+  - "docker-selinux"
+  - "docker-engine-selinux"
+  - "docker-engine"

roles/docker/defaults/main/rhel.yml

@@ -0,0 +1,34 @@
+---
+docker_rhel_repo_name: "docker-ce-stable"
+docker_rhel_repo_description: "Docker CE Stable - $basearch"
+docker_rhel_repo_url: "https://download.docker.com/linux/rhel/$releasever/$basearch/stable"
+docker_rhel_repo_validate_certs: true
+docker_rhel_repo_gpg_check: true
+docker_rhel_repo_gpg_key: "https://download.docker.com/linux/rhel/gpg"
+
+docker_rhel_cli_package: "docker-ce-cli"
+docker_rhel_plugin_buildx_package: "docker-buildx-plugin"
+docker_rhel_plugin_compose_package: "docker-compose-plugin"
+docker_rhel_base_packages:
+  - "docker-ce"
+  - "docker-ce-cli"
+  - "containerd.io"
+docker_rhel_packages: >-2
+  {{
+    docker_fedora_base_packages
+    + (docker_plugin_buildx_enable | default(false)
+      | ternary([ docker_rhel_plugin_buildx_package ], []))
+    + (docker_plugin_compose_enable | default(false)
+      | ternary([ docker_rhel_plugin_compose_package ], []))
+  }}
+docker_rhel_legacy_packages:
+  - "docker"
+  - "docker-client"
+  - "docker-client-latest"
+  - "docker-common"
+  - "docker-latest"
+  - "docker-latest-logrotate"
+  - "docker-logrotate"
+  - "docker-engine"
+  - "podman"
+  - "runc"

roles/docker/tasks/configure.yml

@@ -9,7 +9,7 @@
 
 - name: Configure docker daemon using '{{ docker_daemon_config_file }}'
   ansible.builtin.copy:
-    content: "{{ docker_daemon_config | to_json }}"
+    content: "{{ docker_daemon_config | to_nice_json }}"
     dest: "{{ docker_daemon_config_file }}"
     mode: "{{ docker_daemon_config_file_mode }}"
     owner: "{{ docker_daemon_config_owner }}"

roles/docker/tasks/install-fedora.yml

@@ -0,0 +1,21 @@
+---
+- name: Ensure legacy docker packages are removed
+  ansible.builtin.dnf:
+    name: "{{ docker_fedora_legacy_packages }}"
+    state: "removed"
+  when: docker_remove_legacy_packages
+
+- name: Ensure dnf repository for docker is {{ docker_state }}
+  ansible.builtin.yum_repository:
+    name: "{{ docker_fedora_repo_name }}"
+    description: "{{ docker_fedora_repo_description }}"
+    baseurl: "{{ docker_fedora_repo_url }}"
+    validate_certs: "{{ docker_fedora_repo_validate_certs }}" 
+    gpgkey: "{{ docker_fedora_repo_gpg_key }}"
+    gpgcheck: "{{ docker_fedora_repo_gpg_check }}"
+    state: "{{ docker_state }}"
+
+- name: Install dnf packages for docker
+  ansible.builtin.dnf:
+    name: "{{ docker_fedora_packages }}"
+    state: "{{ docker_state }}"

roles/docker/tasks/install-redhat.yml

@@ -0,0 +1,21 @@
+---
+- name: Ensure legacy docker packages are removed
+  ansible.builtin.dnf:
+    name: "{{ docker_rhel_legacy_packages }}"
+    state: absent
+  when: docker_remove_legacy_packages
+
+- name: Add dnf repository for docker
+  ansible.builtin.yum_repository:
+    name: "{{ docker_rhel_repo_name }}"
+    description: "{{ docker_rhel_repo_description }}"
+    baseurl: "{{ docker_rhel_repo_url }}"
+    validate_certs: "{{ docker_rhel_repo_validate_certs }}"
+    gpgkey: "{{ docker_rhel_repo_gpg_key }}"
+    gpgcheck: "{{ docker_rhel_repo_gpg_check }}"
+    state: "{{ docker_state }}"
+
+- name: Install dnf packages for docker
+  ansible.builtin.dnf:
+    name: "{{ docker_rhel_packages }}"
+    state: "{{ docker_state }}"

roles/docker/tasks/main.yml

@@ -2,14 +2,14 @@
 - name: Check if target OS is supported
   ansible.builtin.fail:
     msg: >-2
-      OS Family '{{ docker_os_family }}' is not supported!
+      OS '{{ docker_os }}' is not supported!
-  when: docker_os_family not in docker_supported_os_families
+  when: docker_os not in docker_supported_oses
   vars:
-    docker_os_family: "{{ ansible_os_family | lower }}"
+    docker_os: "{{ ansible_distribution | lower }}"
 
-- name: Ensure docker is {{ docker_state }} on {{ ansible_os_family }}-family
+- name: Ensure docker is {{ docker_state }} on {{ ansible_distribution }}
   ansible.builtin.include_tasks:
-    file: "install-{{ ansible_os_family | lower }}.yml"
+    file: "install-{{ ansible_distribution | lower }}.yml"
 
 - name: Configure docker daemon
   ansible.builtin.include_tasks:

roles/docker/vars/main.yml

@@ -1,3 +1,6 @@
 ---
-docker_supported_os_families:
+docker_supported_oses:
   - 'debian'
+  - 'fedora'
+docker_supported_os_families:
+  - 'rhel'