Add Authelia.

env.yml

@@ -39,6 +39,7 @@ cifs_mounts:
 
 
 projects:
+  - authelia
   - coturn
   - element
   - etebase
@@ -56,6 +57,7 @@ projects:
 
 
 projects_to_backup:
+  - authelia
   - etebase
   - hedgedoc
   - lldap
@@ -79,6 +81,7 @@ borg_prune_options: |
 
 # Ports exposed to host
 ports:
+  authelia: 9091
   coturn_listening: 3478
   coturn_tls_listening: 5349
   coturn_relay_min: 49152
@@ -107,6 +110,7 @@ ports:
 
 # UID in containers
 users:
+  authelia: 1008
   coturn: 666
   etebase: 373
   hedgedoc: 1004

roles/authelia/tasks/backup.yml

@@ -0,0 +1,24 @@
+- name: "Backup PostgreSQL authelia database"
+  shell: >
+    docker exec postgres
+    pg_dump -c {{ role_name }} |
+    borg create
+    --compression lzma
+    "{{ borg_repodir }}::{{ role_name }}-{now:%Y-%m-%d_%H-%M-%S}"
+    -
+    --stdin-name dump_{{ role_name }}.sql
+  environment:
+    DOCKER_HOST: "{{ docker_host }}"
+    BORG_PASSCOMMAND: "cat {{ borg_passphrase_file }}"
+  become: true
+
+- name: Prune borg repository
+  command:
+    cmd: |
+      borg prune
+      --glob-archives='{{ role_name }}-*'
+      {{ borg_prune_options }}
+      {{ borg_repodir }}
+  environment:
+    BORG_PASSCOMMAND: "cat {{ borg_passphrase_file }}"
+  become: true

roles/authelia/tasks/main.yml

@@ -0,0 +1,14 @@
+- name: Include backup tasks
+  include_tasks:
+    file: backup.yml
+  when: run_backup | default(false) | bool
+
+- name: Include setup tasks
+  include_tasks:
+    file: setup.yml
+  when: run_setup | default(false) | bool
+
+- name: Include update tasks
+  include_tasks:
+    file: update.yml
+  when: run_update | default(false) | bool

roles/authelia/tasks/setup.yml

@@ -0,0 +1,23 @@
+- name: "Create {{ project_dir }} project directory"
+  file:
+    path: "{{ project_dir }}"
+    state: directory
+
+- name: Template docker-compose.yaml & configuration.yml to project directory
+  template:
+    src: "{{ item }}"
+    dest: "{{ project_dir }}/{{ item }}"
+    owner: "{{ host_uid }}"
+    group: "{{ host_uid }}"
+    mode: '640'
+  loop:
+    - docker-compose.yaml
+    - configuration.yml
+  register: authelia_template_configuration_result
+
+# Separate task because template module cannot chown/chgrp to a non-existing user/group
+- name: "Change group of homeserver.yaml to Authelia GID ({{ users['authelia'] + uid_shift }})"
+  file:
+    path: "{{ project_dir }}/configuration.yml"
+    group: "{{ users['authelia'] + uid_shift }}"
+  become: true

roles/authelia/tasks/update.yml

@@ -0,0 +1,24 @@
+- name: Pull project services
+  community.docker.docker_compose:
+    project_src: "{{ project_dir }}"
+    recreate: never
+    pull: true
+    debug: true
+  when: docker_pull_images | bool
+  register: authelia_docker_compose_pull_result
+
+- name: Display pulled image(s) name
+  set_fact:
+    authelia_pulled_images: "{{ authelia_pulled_images | default([]) + [item.pulled_image.name] }}"
+  loop: "{{ authelia_docker_compose_pull_result['actions'] | default([]) | selectattr('pulled_image', 'defined') }}"
+
+- name: Include backup tasks
+  include_tasks:
+    file: backup.yml
+  # Make a backup if we didn't already make one and we pulled a new image
+  when: not run_backup and authelia_pulled_images is defined
+
+- name: Create/Restart project services
+  community.docker.docker_compose:
+    project_src: "{{ project_dir }}"
+    restarted: "{{ authelia_template_configuration_result['changed'] | default(false) | bool }}"

roles/authelia/templates/configuration.yml

@@ -0,0 +1,72 @@
+theme: 'auto'
+
+totp:
+  issuer: '{{ domain }}'
+
+identity_validation:
+  reset_password:
+    jwt_secret: '{{ authelia_secrets["jwt_secret"] }}'
+
+authentication_backend:
+  refresh_interval: '1m'
+  ldap:
+    implementation: 'custom'
+    address: 'ldap://lldap:3890'
+    base_dn: '{{ ldap_base_dn }}'
+    users_filter: '(&({username_attribute}={input})(objectClass=person))'
+    groups_filter: '(member={dn})'
+    user: '{{ authelia_secrets["ldap_user"] }}'
+    password: '{{ authelia_secrets["ldap_password"] }}'
+    attributes:
+      distinguished_name: 'distinguishedName'
+      username: 'uid'
+      mail: 'mail'
+      member_of: 'memberOf'
+      group_name: 'cn'
+
+password_policy:
+  standard:
+    enabled: true
+    min_length: 12
+    max_length: 128
+    require_uppercase: true
+    require_lowercase: true
+    require_number: true
+    require_special: true
+
+access_control:
+  default_policy: 'deny'
+  rules: 
+    - domain: 'auth.{{ domain }}'
+      policy: 'bypass'
+
+    - domain: 'ldap.{{ domain }}'
+      policy: 'two_factor'
+      subject: 'group:lldap_admin'
+
+    - domain: 'syncthing.{{ domain }}'
+      policy: 'two_factor'
+      subject: 'user:viyurz'
+
+session:
+  cookies:
+    - name: 'authelia_session'
+      domain: '{{ domain }}'
+      authelia_url: 'https://auth.{{ domain }}'
+
+storage:
+  encryption_key: '{{ authelia_secrets["encryption_key"] }}'
+  postgres:
+    address: postgres.{{ domain }}
+    database: authelia
+    username: '{{ authelia_secrets["postgres_user"] }}'
+    password: '{{ authelia_secrets["postgres_password"] }}'
+
+notifier:
+  smtp:
+    address: 'submissions://mail.{{ domain }}:{{ ports["mailserver_smtps"] }}'
+    username: '{{ authelia_secrets["smtp_user"] }}'
+    password: '{{ authelia_secrets["smtp_password"] }}'
+    sender: 'Authelia <authelia@{{ domain }}>'
+
+# identity_providers:

roles/authelia/templates/docker-compose.yaml

@@ -0,0 +1,16 @@
+services:
+  authelia:
+    container_name: authelia
+    image: docker.io/authelia/authelia:4.38
+    restart: always
+    user: {{ users['authelia'] }}:{{ users['authelia'] }}
+    networks:
+      - authelia
+    ports:
+      - 127.0.0.1:{{ ports['authelia'] }}:9091
+    volumes:
+      - ./configuration.yml:/config/configuration.yml
+
+networks:
+  authelia:
+    name: authelia

roles/reverse-proxy/tasks/main.yml

@@ -5,14 +5,17 @@
       apt:
         name: nginx
   
-    - name: Template nginx.conf to /etc/nginx/nginx.conf
+    - name: Template configuration files to /etc/nginx/
       template:
-        src: nginx.conf
-        dest: /etc/nginx/nginx.conf
+        src: "{{ item }}"
+        dest: "/etc/nginx/{{ item }}"
         owner: root
         group: root
         mode: '644' 
-      register: nginx_template_nginx_conf_result
+      loop:
+        - nginx.conf
+        - authelia-location.conf
+        - authelia-authrequest.conf
 
     - name: Template reverse-proxy.conf to /etc/nginx/sites-available/reverse-proxy.conf
       template:
@@ -21,7 +24,6 @@
         owner: root
         group: root
         mode: '644'
-      register: nginx_template_reverse_proxy_conf_result
 
     - name: Copy ssl-headers.conf to /etc/nginx/conf.d/ssl-headers.conf
       copy:
@@ -30,7 +32,6 @@
         owner: root
         group: root
         mode: '644'
-      register: nginx_copy_ssl_headers_conf_result
 
     - name: Remove all enabled NGINX sites
       file:
@@ -74,6 +75,5 @@
     - name: Start/Reload NGINX service
       service:
         name: nginx
-        # Reload if conf changed, if not make sure it is started
-        state: "{{ (nginx_template_nginx_conf_result['changed'] or nginx_template_reverse_proxy_conf_result['changed'] or nginx_copy_ssl_headers_conf_result['changed']) | ternary('reloaded', 'started') }}"
+        state: reloaded
         enabled: yes

roles/reverse-proxy/templates/authelia-authrequest.conf

@@ -0,0 +1,15 @@
+auth_request /internal/authelia/authz;
+
+auth_request_set $user $upstream_http_remote_user;
+auth_request_set $groups $upstream_http_remote_groups;
+auth_request_set $name $upstream_http_remote_name;
+auth_request_set $email $upstream_http_remote_email;
+
+proxy_set_header Remote-User $user;
+proxy_set_header Remote-Groups $groups;
+proxy_set_header Remote-Email $email;
+proxy_set_header Remote-Name $name;
+
+auth_request_set $redirection_url $upstream_http_location;
+
+error_page 401 =302 $redirection_url;

roles/reverse-proxy/templates/authelia-location.conf

@@ -0,0 +1,18 @@
+location /internal/authelia/authz {
+    internal;
+    
+	proxy_pass http://127.0.0.1:{{ ports['authelia'] }}/api/authz/auth-request;
+    
+	proxy_set_header X-Original-Method $request_method;
+    proxy_set_header X-Original-URL $scheme://$http_host$request_uri;
+    proxy_set_header X-Forwarded-For $remote_addr;
+    proxy_set_header Content-Length "";
+    proxy_set_header Connection "";
+    
+	proxy_pass_request_body off;
+    proxy_http_version 1.1;
+    proxy_cache_bypass $cookie_session;
+    proxy_no_cache $cookie_session;
+    proxy_buffers 4 32k;
+    client_body_buffer_size 128k;
+}

roles/reverse-proxy/templates/reverse-proxy.conf

@@ -61,6 +61,19 @@ server {
 }
 
 
+# Authelia
+server {
+        listen 443 ssl http2;
+        listen [::]:443 ssl http2;
+
+        server_name auth.{{ domain }};
+
+        location / {
+                proxy_pass http://127.0.0.1:{{ ports['authelia'] }};
+        }
+}
+
+
 # Element
 server {
 	listen 443 ssl http2;
@@ -138,8 +151,11 @@ server {
 	
 	server_name ldap.{{ domain }};
 
+	include /etc/nginx/authelia-location.conf;
+
 	location / {
 		proxy_pass http://127.0.0.1:{{ ports['lldap'] }};
+		include /etc/nginx/authelia-authrequest.conf;
 	}
 }
 
@@ -177,6 +193,22 @@ server {
 }
 
 
+# Syncthihng
+server {
+	listen 443 ssl http2;
+	listen [::]:443 ssl http2;
+
+	server_name syncthing.{{ domain }};
+
+	include /etc/nginx/authelia-location.conf;
+
+	location / {
+		proxy_pass http://127.0.0.1:{{ ports['syncthing_webui'] }};
+		include /etc/nginx/authelia-authrequest.conf;
+	}
+}
+
+
 # Syncthing Discovery
 upstream stdisco.{{ domain }} {
 	# Local IP address:port for discovery server

secrets.yml.example

@@ -1,3 +1,5 @@
+# To generate random secret: openssl rand -base64 <length>
+
 ansible_become_password:
 
 borg_passphrase:
@@ -6,7 +8,19 @@ cifs_credentials:
   username:
   password:
 
-# To generate random secret: openssl rand -base64 50
+
+authelia_secrets:
+  # Encryption key for the database, must be saved
+  encryption_key:
+  jwt_secret:
+  # LDAP bind dn
+  ldap_user:
+  ldap_password:
+  postgres_user:
+  postgres_password:
+  smtp_user:
+  smtp_password:
+
 coturn_secrets:
   static_auth_secret: