Add ability to download client configs

[Srigi]

Inspired by lablabs/ansible-collection-wireguard I would very welcome the ability to configure to download client configs for unmanaged peers.

[Robert Wimmer]

I had something similar in mind but never had the time to implement it. I'll leave the issue open for now and mark it as enhancement.

[Anton Patsev]

Any news?

[Anton Patsev]

This my playbook for install wireguard and generate client config.
Could you move something to role?

- hosts: wireguard
  become: true
  pre_tasks:
    - name: Install a qrencode, openresolv
      apt:
        pkg:
        - qrencode
        - openresolv
  roles:
    - githubixx.ansible_role_wireguard
  post_tasks:
    - name: Show wireguard__fact_public_key
      debug: var=wireguard__fact_public_key

    - name: Generate Wireguard client keypair
      shell: wg genkey | tee /etc/wireguard/client_privatekey | wg pubkey | tee /etc/wireguard/client_publickey
      args:
        creates: /etc/wireguard/client_privatekey
      become: yes

    - name: Register client private key
      shell: cat /etc/wireguard/client_privatekey
      register: client_privatekey
      changed_when: false
      become: yes

    - name: Register client public key
      shell: cat /etc/wireguard/client_publickey
      register: client_publickey
      changed_when: false
      become: yes

    - name: Add [Peer] to /etc/wireguard/wg0.conf
      lineinfile:
        dest: /etc/wireguard/wg0.conf
        line: "\n[Peer]"
        insertafter: EOF
      register: create_clients_configs

    - name: Add client publickey to /etc/wireguard/wg0.conf
      lineinfile:
        dest: /etc/wireguard/wg0.conf
        line: "PublicKey = {{ client_publickey.stdout }}"
        insertafter: EOF
      register: create_clients_configs

    - name: Add client AllowedIPs to /etc/wireguard/wg0.conf
      lineinfile:
        dest: /etc/wireguard/wg0.conf
        line: "AllowedIPs = 10.27.123.10/32"
        insertafter: EOF
      register: create_clients_configs

    - name: Create clients configs
      template:
        src: "clients.conf.j2"
        dest: "/etc/wireguard/client.conf"
        mode: 0644
      register: create_clients_configs

    - name: restart service wg-quick@wg0
      service:
        name: wg-quick@wg0
        state: restarted
      when: create_clients_configs.changed

    - name: Generate QR code
      shell: qrencode -t ansiutf8 < "/etc/wireguard/client.conf"
      changed_when: false
      register: qrcode

    - name: Show QR code
      debug:
        msg: "{{ qrcode.stdout_lines }}"