GitLab CE Template (#214)

* Enhance meta.json: add GitLab Community Edition entry with detailed description, logo, and links; format tag lists for consistency.

* Refactor docker-compose.yml for GitLab CE: remove unnecessary version declaration, simplify port mappings, and eliminate unused network configurations.

* Add Casdoor and Zitadel blueprints: include docker-compose files, template configurations, and metadata entries with descriptions, logos, and links for both identity management platforms.

blueprints/gitlab-ce/docker-compose.yml

@@ -0,0 +1,65 @@
+services:
+  gitlab:
+    image: gitlab/gitlab-ce:latest
+    restart: unless-stopped
+    hostname: gitlab.example.com
+    environment:
+      GITLAB_OMNIBUS_CONFIG: |
+        external_url 'http://${GITLAB_HOST}'
+        gitlab_rails['gitlab_ssh_host'] = '${GITLAB_HOST}'
+        gitlab_rails['gitlab_shell_ssh_port'] = 2224
+        gitlab_rails['db_adapter'] = 'postgresql'
+        gitlab_rails['db_host'] = 'postgresql'
+        gitlab_rails['db_port'] = '5432'
+        gitlab_rails['db_database'] = '${POSTGRES_DB}'
+        gitlab_rails['db_username'] = '${POSTGRES_USER}'
+        gitlab_rails['db_password'] = '${POSTGRES_PASSWORD}'
+        # Redis config for external TCP connection
+        gitlab_rails['redis_url'] = 'redis://redis:6379/0'
+        gitlab_rails['redis_host'] = 'redis'
+        gitlab_rails['redis_port'] = 6379
+        gitlab_rails['redis_socket'] = nil
+        gitlab_rails['gitlab_email_enabled'] = false
+        gitlab_rails['gitlab_default_can_create_group'] = true
+        gitlab_rails['gitlab_username_changing_enabled'] = false
+        unicorn['worker_processes'] = 2
+        unicorn['worker_timeout'] = 60
+        postgresql['enable'] = false
+        redis['enable'] = false
+        nginx['enable'] = true
+        nginx['listen_port'] = 80
+        nginx['listen_https'] = false
+        prometheus_monitoring['enable'] = false
+    ports:
+      - "80"
+      - "2224"
+    volumes:
+      - gitlab_config:/etc/gitlab
+      - gitlab_logs:/var/log/gitlab
+      - gitlab_data:/var/opt/gitlab
+    depends_on:
+      - postgresql
+      - redis
+
+  postgresql:
+    image: postgres:16-alpine
+    restart: unless-stopped
+    environment:
+      POSTGRES_DB: ${POSTGRES_DB}
+      POSTGRES_USER: ${POSTGRES_USER}
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
+    volumes:
+      - postgresql_data:/var/lib/postgresql/data
+
+  redis:
+    image: redis:7-alpine
+    restart: unless-stopped
+    volumes:
+      - redis_data:/data
+
+volumes:
+  gitlab_config:
+  gitlab_logs:
+  gitlab_data:
+  postgresql_data:
+  redis_data:

blueprints/gitlab-ce/gitlab-ce.svg

@@ -0,0 +1,9 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 380 380" width="64" height="64">
+  <defs>
+    <linearGradient id="a" x1="50%" x2="50%" y1="0%" y2="100%">
+      <stop offset="0%" stop-color="#FC6D26"/>
+      <stop offset="100%" stop-color="#E24329"/>
+    </linearGradient>
+  </defs>
+  <path fill="url(#a)" d="M282.83 170.73l-.27-.69-26.14-68.22a6.81 6.81 0 0 0-2.69-3.24 7 7 0 0 0-8.43.37 7 7 0 0 0-2.32 3.5l-17.65 54H154.29l-17.65-54A6.86 6.86 0 0 0 134.48 99a7 7 0 0 0-8.43-.37 6.81 6.81 0 0 0-2.69 3.24L97.44 170l-.26.69a48.54 48.54 0 0 0 16.1 56.1l.09.07.24.16 39.82 29.82 19.7 14.91 12 9.06a8.07 8.07 0 0 0 9.76 0l12-9.06 19.7-14.91 40.06-30 .1-.08A48.56 48.56 0 0 0 282.83 170.73z"/>
+</svg> 

blueprints/gitlab-ce/template.toml

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+[variables]
+main_domain = "${domain}"
+postgres_db = "gitlab"
+postgres_user = "gitlab"
+postgres_password = "${password:32}"
+
+[config]
+env = [
+  "GITLAB_HOST=${main_domain}",
+  "POSTGRES_DB=${postgres_db}",
+  "POSTGRES_USER=${postgres_user}",
+  "POSTGRES_PASSWORD=${postgres_password}",
+]
+
+[[config.domains]]
+serviceName = "gitlab"
+port = 80
+host = "${main_domain}"