From 5c8af619d3199726c8259ec68531a563aedacc81 Mon Sep 17 00:00:00 2001
From: DerLinkman <derlinkman@gmail.com>
Date: Sat, 18 Jul 2026 00:08:02 +0200
Subject: [PATCH] Add docker role and playbook for Docker installation

---
 playbooks/docker.yml                   | 18 ++++++++++++
 roles/docker/defaults/main.yml         |  8 ++++++
 roles/docker/handlers/main.yml         | 17 +++++++++++
 roles/docker/tasks/install-docker.yml  | 40 ++++++++++++++++++++++++++
 roles/docker/tasks/main.yml            |  2 ++
 roles/docker/templates/sources.list.j2 |  7 +++++
 6 files changed, 92 insertions(+)
 create mode 100644 playbooks/docker.yml
 create mode 100644 roles/docker/defaults/main.yml
 create mode 100644 roles/docker/handlers/main.yml
 create mode 100644 roles/docker/tasks/install-docker.yml
 create mode 100644 roles/docker/tasks/main.yml
 create mode 100644 roles/docker/templates/sources.list.j2

diff --git a/playbooks/docker.yml b/playbooks/docker.yml
new file mode 100644
index 0000000..9b567a9
--- /dev/null
+++ b/playbooks/docker.yml
@@ -0,0 +1,18 @@
+- hosts: all
+  user: admin
+  become: true
+  tasks:
+    - name: Verify if system is Debian
+      debug:
+        msg: "This playbook is running on a Debian system."
+      when: ansible_facts['os_family'] == "Debian"
+
+    - name: Stop playbook if system is not Debian
+      fail:
+        msg: "This playbook only supports Debian."
+      when: ansible_facts['os_family'] != "Debian"
+
+    - name: Include Docker setup role
+      import_role:
+        name: docker
+      when: ansible_facts['os_family'] == "Debian"
\ No newline at end of file
diff --git a/roles/docker/defaults/main.yml b/roles/docker/defaults/main.yml
new file mode 100644
index 0000000..f0493f3
--- /dev/null
+++ b/roles/docker/defaults/main.yml
@@ -0,0 +1,8 @@
+docker_mirror: https://download.docker.com/linux/debian
+os_version_codename: "{{ ansible_lsb.codename }}"
+docker_packages:
+  - docker-ce
+  - docker-ce-cli
+  - containerd.io
+  - docker-buildx-plugin
+  - docker-compose-plugin
\ No newline at end of file
diff --git a/roles/docker/handlers/main.yml b/roles/docker/handlers/main.yml
new file mode 100644
index 0000000..d093e27
--- /dev/null
+++ b/roles/docker/handlers/main.yml
@@ -0,0 +1,17 @@
+---
+- name: Restart Docker
+  ansible.builtin.systemd:
+    name: docker
+    state: restarted
+    daemon_reload: yes
+
+- name: Reload Docker
+  ansible.builtin.systemd:
+    name: docker
+    state: reloaded
+
+- name: Start Docker
+  ansible.builtin.systemd:
+    name: docker
+    state: started
+    enabled: yes
diff --git a/roles/docker/tasks/install-docker.yml b/roles/docker/tasks/install-docker.yml
new file mode 100644
index 0000000..e725cc4
--- /dev/null
+++ b/roles/docker/tasks/install-docker.yml
@@ -0,0 +1,40 @@
+---
+- name: Update apt cache
+  ansible.builtin.apt:
+    update_cache: yes
+    cache_valid_time: 3600
+
+- name: Install required packages
+  ansible.builtin.apt:
+    name:
+      - ca-certificates
+      - curl
+    state: present
+
+- name: Create keyrings directory
+  ansible.builtin.file:
+    path: /etc/apt/keyrings
+    state: directory
+    mode: '0755'
+
+- name: Download Docker GPG key
+  ansible.builtin.get_url:
+    url: "{{ docker_mirror }}/gpg"
+    dest: /etc/apt/keyrings/docker.asc
+    mode: '0644'
+
+- name: Add Docker repository
+  ansible.builtin.template:
+    src: sources.list.j2
+    dest: /etc/apt/sources.list.d/docker.sources
+    mode: '0644'
+
+- name: Update apt cache after adding repository
+  ansible.builtin.apt:
+    update_cache: yes
+
+- name: Install Docker packages
+  ansible.builtin.apt:
+    name: "{{ docker_packages }}"
+    state: present
+  notify: Start Docker
\ No newline at end of file
diff --git a/roles/docker/tasks/main.yml b/roles/docker/tasks/main.yml
new file mode 100644
index 0000000..14303d2
--- /dev/null
+++ b/roles/docker/tasks/main.yml
@@ -0,0 +1,2 @@
+- name: Include Docker installation tasks
+  ansible.builtin.include_tasks: install-docker.yml
diff --git a/roles/docker/templates/sources.list.j2 b/roles/docker/templates/sources.list.j2
new file mode 100644
index 0000000..68b1ab4
--- /dev/null
+++ b/roles/docker/templates/sources.list.j2
@@ -0,0 +1,7 @@
+# {{ ansible_managed }}
+# Package sources for Docker for Codename {{ os_version_codename }}. This file is generated by Ansible using the docker role.
+Types: deb
+URIs: {{ docker_mirror }}
+Suites: {{ os_version_codename }}
+Components: stable
+Signed-By: /etc/apt/keyrings/docker.asc
\ No newline at end of file