Add Template to deploy forgejo.

This template allows deploying a forgejo en either Scaleway or Hetzner
(untested) without much knowledge about them.
It DOES require knowledge about Terragrunt and ansible. A wizard of
sorts is provided but it will not guarantee success without some
knowledge about the underlying technology.

ansible/roles/forgejo/tasks/volume.yml

@@ -0,0 +1,60 @@
+---
+# External volume setup tasks
+
+- name: Check if volume device exists
+  ansible.builtin.stat:
+    path: "{{ forgejo_volume_device }}"
+  register: volume_device
+
+- name: Fail if volume device not found
+  ansible.builtin.fail:
+    msg: "Volume device {{ forgejo_volume_device }} not found"
+  when: not volume_device.stat.exists
+
+- name: Check if volume is already formatted
+  ansible.builtin.command:
+    cmd: "blkid {{ forgejo_volume_device }}"
+  register: volume_formatted
+  changed_when: false
+  failed_when: false
+
+- name: Format volume with ext4
+  ansible.builtin.filesystem:
+    fstype: ext4
+    dev: "{{ forgejo_volume_device }}"
+  become: yes
+  when: volume_formatted.rc != 0
+
+- name: Create mount point
+  ansible.builtin.file:
+    path: "{{ forgejo_volume_mount }}"
+    state: directory
+    mode: '0755'
+  become: yes
+
+- name: Mount volume
+  ansible.posix.mount:
+    path: "{{ forgejo_volume_mount }}"
+    src: "{{ forgejo_volume_device }}"
+    fstype: ext4
+    opts: defaults,nofail
+    state: mounted
+  become: yes
+
+- name: Update data path to use volume
+  ansible.builtin.set_fact:
+    forgejo_data_path: "{{ forgejo_volume_mount }}/data"
+
+- name: Create data directories on volume
+  ansible.builtin.file:
+    path: "{{ item }}"
+    state: directory
+    owner: "{{ forgejo_user }}"
+    group: "{{ forgejo_group }}"
+    mode: '0755'
+  become: yes
+  loop:
+    - "{{ forgejo_data_path }}"
+    - "{{ forgejo_data_path }}/git"
+    - "{{ forgejo_data_path }}/attachments"
+    - "{{ forgejo_data_path }}/lfs"