any.software.webdav: added role

plays/emma.yml

@@ -40,3 +40,23 @@
     - role: any.software.miniflux-podman
       vars:
         postgres_data_dir: '/data/miniflux/postgres'
+
+- name: Set up WebDAV
+  hosts: emma
+  become: yes
+  tags: webdav
+  roles:
+    - role: any.common.btrfs-subvolumes
+      vars:
+        subvolumes:
+          - filesystem_uuid: "{{ btrfs_raid.uuid }}"
+            filesystem_path: "{{ btrfs_raid.path }}"
+            name: "/webdav/data"
+    - role: any.software.webdav
+      vars:
+        webdav_version: '5.7.4'
+        data_dir: '{{ btrfs_raid.path }}/webdav/data'
+
+        webdav_user: "{{ vault_webdav_user }}"
+        webdav_password: "{{ vault_webdav_password }}"
+        webdav_password_bcrypt: "{{ vault_webdav_password_bcrypt }}"

roles/any.software.webdav/files/webdav.Caddyfile

@@ -0,0 +1,5 @@
+webdav.roosens.me {
+    reverse_proxy localhost:8018 {
+        header_down +X-Robots-Tag "none"
+    }
+}

roles/any.software.webdav/files/webdav.data.backup.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+data_dir='/mnt/data1/webdav/data'
+snapshot_dir="${data_dir}.snapshot"
+
+# Read-only snapshot for atomic backup
+btrfs subvolume snapshot -r "$data_dir" "$snapshot_dir" || exit $?
+
+/usr/local/bin/restic backup "$snapshot_dir"
+
+# Always remove snapshot subvolume, even if restic fails
+btrfs subvolume delete "$snapshot_dir"

roles/any.software.webdav/files/webdav.service

@@ -0,0 +1,15 @@
+[Unit]
+Description=WebDAV
+After=network.target network-online.target
+Requires=network-online.target
+
+[Service]
+Type=exec
+User=webdav
+Group=webdav
+ExecStart=/usr/local/bin/webdav --config /etc/webdav/config.toml
+
+Restart=always
+
+[Install]
+WantedBy=multi-user.target

roles/any.software.webdav/handlers/main.yml

@@ -0,0 +1,5 @@
+---
+- name: 'restart webdav'
+  ansible.builtin.service:
+    name: 'webdav'
+    state: 'restarted'

roles/any.software.webdav/tasks/main.yml

@@ -0,0 +1,107 @@
+---
+# Download latest version of binary
+- name: Ensure download directory is present
+  ansible.builtin.file:
+    path: "/home/debian/webdav/{{ webdav_version }}"
+    state: directory
+    mode: '0755'
+
+- name: Ensure compressed binary is downloaded
+  ansible.builtin.get_url:
+    url: "https://github.com/hacdias/webdav/releases/download/v{{ webdav_version }}/linux-amd64-webdav.tar.gz"
+    dest: "/home/debian/webdav/{{ webdav_version }}/webdav-{{ webdav_version }}.tar.gz"
+  register: res
+
+- name: Ensure binary is decompressed
+  ansible.builtin.shell:
+    chdir: "/home/debian/webdav/{{ webdav_version }}"
+    cmd: "tar --extract --gzip --file webdav-{{ webdav_version }}.tar.gz"
+  when: 'res.changed'
+
+- name: Ensure binary is copied to correct location
+  ansible.builtin.copy:
+    src: "/home/debian/webdav/{{ webdav_version }}/webdav"
+    remote_src: true
+    dest: '/usr/local/bin/webdav'
+    owner: 'root'
+    group: 'root'
+    mode: '0755'
+  when: 'res.changed'
+  notify: 'restart webdav'
+
+# Set up system user and data directories
+- name: Ensure system group exists
+  ansible.builtin.group:
+    name: 'webdav'
+    gid: 5000
+    system: true
+    state: present
+
+- name: Ensure system user exists
+  ansible.builtin.user:
+    name: 'webdav'
+    group: 'webdav'
+    uid: 5000
+    system: true
+    create_home: false
+
+- name: Ensure subvolume permissions are correct
+  ansible.builtin.file:
+    path: "{{ data_dir }}"
+    state: directory
+    mode: '0755'
+    owner: 'webdav'
+    group: 'webdav'
+
+# Set up configuration, backup scripts and systemd service
+- name: Ensure configuration directory is present
+  ansible.builtin.file:
+    path: '/etc/webdav'
+    state: directory
+    mode: '0755'
+
+- name: Ensure config file is present
+  ansible.builtin.template:
+    src: 'config.toml.j2'
+    dest: '/etc/webdav/config.toml'
+    mode: '0644'
+    owner: 'root'
+    group: 'root'
+  notify: 'restart webdav'
+
+# - name: Ensure backup scripts are present
+#   ansible.builtin.copy:
+#     src: "webdav.{{ item }}.backup.sh"
+#     dest: "/etc/backups/webdav.{{ item }}.backup.sh"
+#     owner: 'root'
+#     group: 'root'
+#     mode: '0644'
+#   loop:
+#     - 'data'
+
+- name: Ensure Caddyfile is present
+  ansible.builtin.copy:
+    src: "webdav.Caddyfile"
+    dest: "/etc/caddy/webdav.Caddyfile"
+    owner: 'root'
+    group: 'root'
+    mode: '0644'
+
+- name: Ensure service file is present
+  ansible.builtin.copy:
+    src: 'webdav.service'
+    dest: '/lib/systemd/system/webdav.service'
+    owner: 'root'
+    group: 'root'
+    mode: '0644'
+  register: res
+
+- name: systemd-reload
+  ansible.builtin.systemd_service:
+    daemon_reload: true
+  when: 'res.changed'
+
+# - name: Ensure webdav service is enabled
+#   ansible.builtin.service:
+#     name: 'webdav'
+#     enabled: true

roles/any.software.webdav/templates/config.toml.j2

@@ -0,0 +1,31 @@
+address = '127.0.0.1'
+port = 8018
+
+# Handled by reverse proxy
+tls = false
+
+prefix = '/'
+debug = false
+noSniff = false
+
+behindProxy = true
+directory = '{{ data_dir }}'
+
+permissions = 'R'
+rulesBehavior = 'overwrite'
+
+[log]
+format = 'console'
+# Color output isn't useful when ingested via systemd
+colors = false
+outputs = ['stdout']
+
+[cors]
+enabled = false
+
+[[users]]
+username = '{{ webdav_user }}'
+password = '{{ webdav_password }}'
+permissions = 'CRUD'
+
+# vim: ft=toml