Merge pull request 'Proxy and SSL support' (#7) from development into main

Reviewed-on: http://gitea.tomsitcafe.com:3000/iron/ds-gitea/pulls/7

README.org

@@ -4,30 +4,39 @@
 
 * ds-gitea
 
-This role installs and configures a basic [[https://docs.gitea.com/][Gitea]] server.
+This role installs and configures a [[https://docs.gitea.com/][Gitea]] server.
 
-Currently it uses SQLite as its database service.
+It uses SQLite as its default database service - with optional PostgreSQL support.
 
-Use the =ds-ufw= role to set up the firewall.
+The role can set up a reverse proxy with SSL using Nginx.
 
-* Features
+- Use the =ds-ufw= role to configure the firewall.
+- Use the =ds-posgresql= role to configure the database.
+- Use the =ds-nginx= role to install the proxy server.
 
-- Download and install the Gitea binary
-- Set up the user and group for the service
-- Create the required directory structure
-- Deploy the Gitea configuration
-- Deploy the Gitea service file
-- Enable and start the service
+* Role Behavior
+
+1. Download and install the Gitea binary
+2. (Optionally) Set up the PostgreSQL user and database
+3. Set up the user and group for the service
+4. Create the required directory structure
+5. Wait for the secret creation and storage in SOPS - if secrets are not present
+6. Deploy the Gitea configuration
+7. Deploy the Gitea systemd service file
+8. (Optionally) Set up the reverse proxy with optional SSL
+9. Enable and start the service
 
 * Defaults
 
 #+begin_src yaml
 gitea_user: git
 gitea_group: git
+gitea_http_port: 3000
+gitea_ssh_port: 22
+gitea_database_server: ''
+gitea_reverse_proxy: ''
 #+end_src
 
-The remaining variables must be declared in the inventory.
-
 * Requirements
 
 - Ansible >= 2.12
@@ -35,24 +44,34 @@ The remaining variables must be declared in the inventory.
 - git
 - sudo
 - ca-certificates
+- (optional) PosgreSQL database
+- (optional) Nginx server
 
 * Variables
 
-| Variable             | Type   | Comment                    |
-|----------------------+--------+----------------------------|
-| gitea_user           | string | Gitea user                 |
-| gitea_group          | string | Gitea group                |
-| gitea_binary_url     | string | Download URL of Gitea      |
-| gitea_checksum_url   | string | Checksum URL of the binary |
-| gitea_app_name       | string | Gitea application title    |
-| gitea_ssh_domain     | string | SSH domain                 |
-| gitea_domain         | string | Domain to reach Gitea      |
-| gitea_http_port      | int    | Gitea HTTP port            |
-| gitea_ssh_port       | int    | Gitea SSH port             |
-| gitea_root_url       | string | Protocol + FQDN            |
-| gitea_lfs_jwt_secret | string | LFS storage secret         |
-| gitea_internal_token | string | Internal token             |
-| gitea_jwt_secret     | string | JWT secret                 |
+| Variable                   | Type    | Comment                                      |
+|----------------------------+---------+----------------------------------------------|
+| gitea_user                 | string  | Gitea user                                   |
+| gitea_group                | string  | Gitea group                                  |
+| gitea_binary_url           | string  | Download URL of Gitea                        |
+| gitea_checksum_url         | string  | Checksum URL of the binary                   |
+| gitea_app_name             | string  | Gitea server title                           |
+| gitea_ssh_domain           | string  | SSH domain                                   |
+| gitea_domain               | string  | Domain to reach Gitea                        |
+| gitea_http_port            | int     | HTTP port                                    |
+| gitea_ssh_port             | int     | SSH port                                     |
+| gitea_root_url             | string  | Protocol + FQDN + port                       |
+| gitea_lfs_jwt_secret       | string  | LFS storage secret                           |
+| gitea_internal_token       | string  | Internal token                               |
+| gitea_jwt_secret           | string  | JWT secret                                   |
+| gitea_database_server      | string  | DB server - 'postgresql' or empty for sqlite |
+| gitea_db_password          | string  | PosgreSQL db password (if pgsql is used)     |
+| gitea_reverse_proxy        | string  | Reverse proxy to use or not set for no proxy |
+| gitea_enable_https         | boolean | Configure HTTPS in the proxy                 |
+| gitea_ssl_cert             | string  | SSL certificate                              |
+| gitea_ssl_key              | string  | SSL key                                      |
+| gitea_enable_http_redirect | boolean | Redirect HTTP to HTTPS                       |
+| gitea_self_signed          | boolean | Generate a self-signed cert and key          |
 
 * Handlers
 
@@ -61,7 +80,7 @@ The remaining variables must be declared in the inventory.
 
 * Secrets
 
-Always store the production secrets in SOPS, or in Ansible Vault.
+Always save the production secrets in SOPS, or in Ansible Vault.
 
 Generate the secrets manually when the playbook stops:
 
@@ -91,10 +110,23 @@ Then re-run the playbook to finish the installation.
     gitea_domain: gitea.tomsitcafe.com
     gitea_http_port: 3000
     gitea_root_url: http://gitea.tomsitcafe.com:3000
+
+    # Optional Postgresql database backend
+    gitea_database_server: postgresql
+
+    # Optional Nginx reverse proxy configuration
+    gitea_reverse_proxy: nginx
+    gitea_enable_https: true
+    gitea_self_signed: true
+    gitea_ssl_cert: /var/lib/gitea/certs/cert.pem
+    gitea_ssl_key: /var/lib/gitea/certs/key.pem
+    gitea_enable_http_redirect: true
+
     # In prod put these secrets in SOPS:
     gitea_lfs_jwt_secret: G9bZrRHMhRQ8w4R0KkH2VLnx2rzq81ROQ951IQjlMs4 
     gitea_internal_token: eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJuYmYiOjE3NzA2Mzk1Njh9.ybbaeNLFiLbyvxfj4vkqhXSAXKRGpwvP8jIm9YLPgXw
     gitea_jwt_secret: uJni4x4e0AzpkLYc-t4keRJKOB6EaLzwVsdLeamkFyU
+    gitea_db_password: Eegh7Aothooph7pa6eu7eitha_zaim0G
 
   roles:
     - role: ds-gitea

defaults/main.yml

@@ -1,3 +1,5 @@
 ---
 gitea_user: git
 gitea_group: git
+gitea_http_port: 3000
+gitea_ssh_port: 22

tasks/main.yml

@@ -8,6 +8,64 @@
     update_cache: true
     state: present
 
+- name: Set up the PostgreSQL database
+  block:
+    - name: Ensure PostgreSQL Python client is installed
+      ansible.builtin.apt:
+        name: python3-psycopg2
+        update_cache: true
+        state: present
+
+    - name: Create the gitea DB role
+      community.postgresql.postgresql_user:
+        name: gitea
+        password: "{{ gitea_db_password }}"
+        role_attr_flags: "NOSUPERUSER,NOCREATEDB,NOCREATEROLE"
+      become_user: postgres
+
+    - name: Create the gitea database
+      community.postgresql.postgresql_db:
+        name: giteadb
+        owner: gitea
+        template: template0
+        encoding: UTF8
+        lc_collate: en_US.UTF-8
+        lc_ctype: en_US.UTF-8
+      become_user: postgres
+
+    - name: Ensure pg_hba.conf has local access for gitea
+      ansible.builtin.lineinfile:
+        path: /etc/postgresql/{{ postgresql_version }}/main/pg_hba.conf
+        regexp: '^local\s+giteadb\s+gitea\s+'
+        line: 'local    giteadb    gitea    scram-sha-256'
+        state: present
+        backup: yes
+      notify:
+        - Reload_postgresql
+  when: gitea_database_server | default('') == "postgresql"
+
+- name: Set up the reverse proxy
+  block:
+    - name: Deploy the site configuration
+      ansible.builtin.template:
+        src: gitea.j2
+        dest: /etc/nginx/sites-available/gitea
+        owner: root
+        group: root
+        mode: '0644'
+      notify: Reload_nginx
+
+    - name: Enable the gitea site
+      ansible.builtin.file:
+        src: /etc/nginx/sites-available/gitea
+        dest: /etc/nginx/sites-enabled/gitea
+        state: link
+        owner: root
+        group: root
+        force: true
+      notify: Reload_nginx
+  when: gitea_reverse_proxy | default('') == "nginx"
+
 - name: Create the gitea group
   ansible.builtin.group:
     name: "{{ gitea_group }}"
@@ -18,7 +76,8 @@
     name: "{{ gitea_user }}"
     group: "{{ gitea_group }}"
     home: /home/{{ gitea_user }}
-    shell: /usr/sbin/nologin
+    shell: /bin/bash
+    password: '*'
     system: true
     create_home: true
     
@@ -35,6 +94,11 @@
     group: "{{ gitea_group }}"
     mode: '0750'
 
+- name: Generate self-signed certificates
+  ansible.builtin.include_tasks:
+    file: self-signed-cert.yml
+  when: gitea_self_signed | default(false)
+
 - name: Pause to generate and save the secrets in SOPS
   ansible.builtin.pause:
     prompt: |

tasks/self-signed-cert.yml

@@ -0,0 +1,18 @@
+---
+- name: Create the certs directory
+  ansible.builtin.file:
+    path: /var/lib/gitea/certs
+    owner: "{{ gitea_user }}"
+    group: "{{ gitea_group }}"
+    mode: '0750'
+    state: directory
+
+- name: Generate the self-signed certs for Gitea
+  ansible.builtin.command: >
+    gitea cert
+    --host {{ gitea_domain }},{{ gitea_ssh_domain }}
+    --out /var/lib/gitea/certs/cert.pem
+    --keyout /var/lib/gitea/certs/key.pem
+  become_user: "{{ gitea_user }}"
+  args:
+    creates: /var/lib/gitea/certs/cert.pem

templates/app.ini.j2

@@ -5,6 +5,15 @@ RUN_USER = {{ gitea_user }}
 WORK_PATH = /var/lib/gitea
 RUN_MODE = prod
 
+{% if gitea_database_server | default('') == "postgresql" %}
+[database]
+DB_TYPE  = postgres
+HOST     = 127.0.0.1:5432
+NAME     = giteadb
+USER     = gitea
+PASSWD   = {{ gitea_db_password }}
+SSL_MODE = disable
+{% else %}
 [database]
 DB_TYPE = sqlite3
 HOST = 127.0.0.1:3306
@@ -15,6 +24,7 @@ SCHEMA =
 SSL_MODE = disable
 PATH = /var/lib/gitea/data/gitea.db
 LOG_SQL = false
+{% endif %}
 
 [repository]
 ROOT = /var/lib/gitea/data/gitea-repositories

templates/gitea.j2

@@ -0,0 +1,55 @@
+# {{ ansible_managed }}
+
+{% if gitea_enable_https | default(false) %}
+server {
+    listen 443 ssl http2;
+    server_name {{ gitea_domain }};
+
+    ssl_certificate     {{ gitea_ssl_cert }};
+    ssl_certificate_key {{ gitea_ssl_key }};
+
+    ssl_protocols       TLSv1.2 TLSv1.3;
+    ssl_ciphers         HIGH:!aNULL:!MD5;
+
+    client_max_body_size 50M;
+
+    location / {
+        client_max_body_size 512M;
+        proxy_pass http://localhost:{{ gitea_http_port }};
+        proxy_set_header Connection $http_connection;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+    }
+}
+
+{% if gitea_enable_http_redirect | default(true) %}
+server {
+    listen 80;
+    server_name {{ gitea_domain }};
+    return 301 https://$host$request_uri;
+}
+{% endif %}
+
+{% else %}
+# HTTP-only configuration
+server {
+    listen 80;
+    server_name {{ gitea_domain }};
+
+    client_max_body_size 50M;
+
+    location / {
+        client_max_body_size 512M;
+        proxy_pass http://localhost:{{ gitea_http_port }};
+        proxy_set_header Connection $http_connection;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+    }
+}
+{% endif %}

templates/gitea.service.j2

@@ -3,6 +3,10 @@
 [Unit]
 Description=Gitea (Git with a cup of tea)
 After=network.target
+{% if gitea_database_server | default('') == "postgresql" %}
+Wants=postgresql.service
+After=postgresql.service
+{% endif %}
 
 [Service]
 RestartSec=2s