feat: add standalone playbook

README.md

@@ -1,5 +1,5 @@
 # Ansible Collection
 
-Opinionated set of roles to configure reasonable defaults for newly provisioned virtual machines. The repository provides a ready-to-use Ansible Collection (`studio.ansible`) containing reusable roles.
-
-Currently only supports Debian-based systems.
+Opinionated set of roles to configure reasonable defaults for newly provisioned Debian / Ubuntu VMs running Docker. The repository provides:
+- An Ansible Collection (`studio.ansible`) containing reusable roles. Use with ansible-galaxy's `requirements.yml`.
+- A ready-to-use playbook configured by passing CLI vars `--extra-vars "ansible_host=${HOST_IP}` e.g. through CI / CD.

galaxy.yml

@@ -3,9 +3,8 @@
 namespace: studio
 name: ansible
 readme: README.md
-version: 0.0.1
+version: 1.0.0
 authors:
   - Studio Vitali
 description: Studio Ansible collection containing common roles
-license:
-  - MIT
+license: MIT

inventory/hosts.ini

@@ -0,0 +1,5 @@
+[target]
+target_host ansible_host="{{ ansible_host }}"
+
+[all:vars]
+ansible_user="{{ ansible_user }}"

meta/runtime.yml

@@ -1,2 +0,0 @@
----
-requires_ansible: ">=2.15.0"

playbooks/setup.yml

@@ -0,0 +1,11 @@
+---
+- name: Setup machines
+  hosts: all
+  become: true
+
+  roles:
+    - base
+    - users
+    - security
+    - docker
+    # - backup

roles/base/tasks/main.yml

@@ -10,6 +10,7 @@
     update_cache: true
     upgrade: dist
     cache_valid_time: 3600
+  when: ansible_facts['os_family'] == "Debian" ## only on Debian / Ubuntu systems
   become: true
 
 - name: Install essential system utilities
@@ -25,6 +26,7 @@
       - unattended-upgrades
     state: present
     update_cache: true
+  when: ansible_facts['os_family'] == "Debian"
   become: true
 #
 # - name: Enable unattended-upgrades
@@ -35,3 +37,5 @@
 #       APT::Periodic::Unattended-Upgrade "1";
 #     mode: "0644"
 #   when: ansible_facts['os_family'] == "Debian"
+
+## SCHEDULE REBOOTS 4 kernel upgrades: with cron, unattended-upgrades or action workflows?

roles/docker/tasks/main.yml

@@ -1,52 +1,29 @@
 ---
-- name: Install Docker
+- name: Install necessary Docker packages
+  ansible.builtin.apt:
+    name:
+      - docker.io
+      - docker-compose
+    state: present
+  when: ansible_facts['os_family'] == "Debian" ## Debian / Ubuntu
   become: true
-  block:
-    - name: Install Docker prerequisites
-      ansible.builtin.apt:
-        name:
-          - ca-certificates
-          - curl
-          - python3-debian ## needed for the deb822 module
-        state: present
-        update_cache: true
 
-    - name: Add Docker official APT repository (DEB822 format)
-      ansible.builtin.deb822_repository:
-        name: docker
-        types: deb
-        uris: "https://download.docker.com/linux/{{ ansible_facts['distribution'] | lower }}"
-        suites: "{{ ansible_facts['distribution_release'] }}"
-        components: stable
-        signed_by: "https://download.docker.com/linux/{{ ansible_facts['distribution'] | lower }}/gpg"
-        state: present
-
-    - name: Install Docker CE packages
-      ansible.builtin.apt:
-        name:
-          - docker-ce
-          - docker-ce-cli
-          - containerd.io
-          - docker-buildx-plugin
-          - docker-compose-plugin
-        state: present
-        update_cache: true
-
-    - name: Ensure Docker service is running and enabled
+- name: Ensure Docker service is running
   ansible.builtin.service:
     name: docker
     state: started
     enabled: true
 
-- name: Configure deployment user for Docker
-  when: deployment_public_ssh_key is defined
-  become: true
-  block:
-    - name: Add deployment user to docker group
+- name: Create docker user for container execution
   ansible.builtin.user:
-        name: deployment
+    name: docker
+    state: present
+    system: true
+    shell: /usr/sbin/nologin
     groups: docker
     append: true
+    create_home: false
+  become: true
 
 - name: Create target for docker compose
   ansible.builtin.file:
@@ -55,22 +32,4 @@
     owner: deployment
     group: deployment
     mode: "0755"
-
-- name: Create app user for secure container execution
   become: true
-  block:
-    - name: Create appuser group
-      ansible.builtin.group:
-        name: appuser
-        state: present
-        gid: 9999
-
-    - name: Create appuser
-      ansible.builtin.user:
-        name: appuser
-        state: present
-        uid: 9999
-        group: appuser
-        system: true
-        shell: /usr/sbin/nologin
-        create_home: false

roles/security/handlers/main.yml

@@ -1,5 +1,5 @@
 ---
 - name: Restart sshd
   ansible.builtin.service:
-    name: ssh
+    name: sshd
     state: restarted

roles/security/tasks/main.yml

@@ -1,7 +1,4 @@
 ---
-- name: Harden SSH configuration
-  become: true
-  block:
 - name: Create SSH drop-in directory
   ansible.builtin.file:
     path: /etc/ssh/sshd_config.d
@@ -9,6 +6,7 @@
     owner: root
     group: root
     mode: "0755"
+  become: true
 
 - name: Harden SSH configuration with drop-in template
   ansible.builtin.template:
@@ -17,19 +15,21 @@
     owner: root
     group: root
     mode: "0644"
+    validate: "sshd -t -f %s"
   notify: Restart sshd
-
-- name: Enable fail2ban
   become: true
-  block:
+
 - name: Install fail2ban
   ansible.builtin.apt:
     name:
       - fail2ban
     state: present
+  when: ansible_facts['os_family'] == "Debian"
+  become: true
 
 - name: Start fail2ban
   ansible.builtin.service:
     name: fail2ban
     state: started
     enabled: yes
+  when: ansible_facts['os_family'] == "Debian"

roles/users/tasks/main.yml

@@ -1,42 +1,38 @@
 ---
-- name: Set up primary sysadmin user
-  when: sysadmin_public_ssh_key is defined
-  become: true
-  block:
-    - name: Create sysadmin user
-      ansible.builtin.user:
-        name: "{{ sysadmin_user }}"
-        groups: sudo
-        append: yes
-        shell: /bin/bash
-        create_home: yes
+# - name: Create primary admin user
+#   ansible.builtin.user:
+#     name: sysadmin
+#     groups: sudo
+#     append: yes
+#     shell: /bin/bash
+#     create_home: yes
+#   become: true
 
-    - name: Add SSH public key
-      ansible.posix.authorized_key:
-        user: "{{ sysadmin_user }}"
-        state: present
-        key: "{{ sysadmin_public_ssh_key }}"
+# - name: Add SSH public key for sysadmin
+#   ansible.posix.authorized_key:
+#     user: sysadmin
+#     state: present
+#     key: "{{ sysadmin_public_ssh_key }}"
+#   become: true
 
-    - name: Allow passwordless sudo
-      ansible.builtin.copy:
-        dest: /etc/sudoers.d/sudo-nopasswd
-        content: "%sudo ALL=(ALL) NOPASSWD: ALL"
-        mode: "0440"
-        validate: /usr/sbin/visudo -cf %s
+# - name: Allow passwordless sudo to sysadmin user
+#   ansible.builtin.copy:
+#     dest: /etc/sudoers.d/sysadmin
+#     content: "sysadmin ALL=(ALL) NOPASSWD: ALL"
+#     mode: "0440"
+#     validate: /usr/sbin/visudo -cf %s
+#   become: true
 
-
-- name: Set up deployment user for CI/CD
-  when: deployment_public_ssh_key is defined
-  become: true
-  block:
-    - name: Create deployment user
+- name: Create deployment user for CI/CD
   ansible.builtin.user:
     name: deployment
     shell: /bin/bash
     create_home: yes
+  become: true
 
-    - name: Add SSH public key
+- name: Add SSH public key for deployment user
   ansible.posix.authorized_key:
     user: deployment
     state: present
     key: "{{ deployment_public_ssh_key }}"
+  become: true