From f93dd15e52140d8e2fb5462ed009a954f1885572 Mon Sep 17 00:00:00 2001
From: Ahmed Abdelhalim <pm@a14m.dev>
Date: Wed, 20 Aug 2025 23:37:21 +0200
Subject: Add wireguard role and fix testing

The testing was failing because the use of the example files with the
same domain names, resulted in the files and the molecule variable were
being merged and therefore running tasks that would fail on test
(example, setting a fake VPN connection that wouldn't start).
---
 roles/wireguard/defaults/main.yml       |  3 ++
 roles/wireguard/meta/argument_specs.yml | 18 +++++++++++
 roles/wireguard/meta/main.yml           | 19 ++++++++++++
 roles/wireguard/tasks/main.yml          | 54 +++++++++++++++++++++++++++++++++
 roles/wireguard/vars/archlinux.yml      |  4 +++
 roles/wireguard/vars/debian.yml         |  4 +++
 6 files changed, 102 insertions(+)
 create mode 100644 roles/wireguard/defaults/main.yml
 create mode 100644 roles/wireguard/meta/argument_specs.yml
 create mode 100644 roles/wireguard/meta/main.yml
 create mode 100644 roles/wireguard/tasks/main.yml
 create mode 100644 roles/wireguard/vars/archlinux.yml
 create mode 100644 roles/wireguard/vars/debian.yml

(limited to 'roles/wireguard')

diff --git a/roles/wireguard/defaults/main.yml b/roles/wireguard/defaults/main.yml
new file mode 100644
index 00000000..7b1d98b9
--- /dev/null
+++ b/roles/wireguard/defaults/main.yml
@@ -0,0 +1,3 @@
+---
+wireguard_connections: {}
+wireguard_autostart_connection: ""
diff --git a/roles/wireguard/meta/argument_specs.yml b/roles/wireguard/meta/argument_specs.yml
new file mode 100644
index 00000000..68e0e821
--- /dev/null
+++ b/roles/wireguard/meta/argument_specs.yml
@@ -0,0 +1,18 @@
+---
+argument_specs:
+  main:
+    short_description: "Install and configure WireGuard VPN connections"
+    description:
+      - "Installs WireGuard package and tools"
+      - "Deploys WireGuard configuration files from dictionary"
+      - "Optionally auto-starts a specific connection on boot"
+    author: "a14m"
+    options:
+      wireguard_connections:
+        description: "Dictionary of WireGuard connection configurations"
+        type: "dict"
+        default: {}
+      wireguard_autostart_connection:
+        description: "Name of connection to automatically start on boot"
+        type: "str"
+        default: ""
diff --git a/roles/wireguard/meta/main.yml b/roles/wireguard/meta/main.yml
new file mode 100644
index 00000000..22da6ddd
--- /dev/null
+++ b/roles/wireguard/meta/main.yml
@@ -0,0 +1,19 @@
+---
+dependencies: []
+
+galaxy_info:
+  author: "a14m"
+  description: "Install and configure WireGuard VPN connections"
+  company: "kartoffeln.work GmbH."
+  license: "MIT"
+  min_ansible_version: "2.18"
+  platforms:
+    - name: "ArchLinux"
+      versions:
+        - "all"
+    - name: "Ubuntu"
+      versions:
+        - "noble"
+    - name: "Debian"
+      versions:
+        - "bookworm"
diff --git a/roles/wireguard/tasks/main.yml b/roles/wireguard/tasks/main.yml
new file mode 100644
index 00000000..45011ea1
--- /dev/null
+++ b/roles/wireguard/tasks/main.yml
@@ -0,0 +1,54 @@
+---
+- name: "Include OS-specific variables"
+  ansible.builtin.include_vars: "{{ ansible_os_family | lower }}.yml"
+
+- name: "Ensure wireguard is installed"
+  become: true
+  ansible.builtin.package:
+    name: "{{ wireguard_pkgs }}"
+    state: "present"
+
+- name: "Create wireguard configuration directory"
+  become: true
+  ansible.builtin.file:
+    path: "/etc/wireguard"
+    state: "directory"
+    owner: "root"
+    group: "root"
+    mode: "0700"
+
+- name: "Deploy WireGuard configurations"
+  become: true
+  ansible.builtin.copy:
+    content: "{{ wireguard_connections[item] }}"
+    dest: "/etc/wireguard/{{ item }}.conf"
+    owner: "root"
+    group: "root"
+    mode: "0600"
+    backup: true
+  with_items: "{{ wireguard_connections }}"
+  when: wireguard_connections | length > 0
+
+- name: "Configure autostart connection"
+  become: true
+  block:
+    - name: "Ensure all wireguard connections are stopped"
+      ansible.builtin.systemd:
+        name: "wg-quick@{{ item }}"
+        enabled: false
+        state: "stopped"
+      with_items: "{{ wireguard_connections.keys() | list }}"
+
+    - name: "Ensure all wireguard interfaces are down"
+      ansible.builtin.command:
+        cmd: "wg-quick down {{ item }}"
+      with_items: "{{ wireguard_connections.keys() | list }}"
+      changed_when: true
+      failed_when: false
+
+    - name: "Enable and start wg-quick service for connection {{ wireguard_autostart_connection }}"
+      ansible.builtin.systemd:
+        name: "wg-quick@{{ wireguard_autostart_connection }}"
+        enabled: true
+        state: "started"
+      when: wireguard_autostart_connection != ""
diff --git a/roles/wireguard/vars/archlinux.yml b/roles/wireguard/vars/archlinux.yml
new file mode 100644
index 00000000..9afa94e4
--- /dev/null
+++ b/roles/wireguard/vars/archlinux.yml
@@ -0,0 +1,4 @@
+---
+wireguard_pkgs:
+  - "wireguard-tools"
+  - "systemd-resolvconf"
diff --git a/roles/wireguard/vars/debian.yml b/roles/wireguard/vars/debian.yml
new file mode 100644
index 00000000..f9c5f5f7
--- /dev/null
+++ b/roles/wireguard/vars/debian.yml
@@ -0,0 +1,4 @@
+---
+wireguard_pkgs:
+  - "wireguard"
+  - "resolvconf"
-- 
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