feat(docker): support fedora targets

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/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/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 +1,4 @@
 ---
-docker_supported_os_families:
+docker_supported_oses:
   - 'debian'
+  - 'fedora'