feat: Add PostgreSQL support for Gitea installer

- Add PostgreSQL configuration options
- Generate PostgreSQL YAML when selected
- Verify PostgreSQL pod readiness
- Update documentation for PostgreSQL usage
- Add PostgreSQL service and pod definitions

lib/installers/k8s/gitea/README.md

@@ -43,8 +43,14 @@ installer.namespace = 'forge'       // Default: '${installer.name}-gitea-namespa
 installer.http_port = 3000          // Default: 3000
 
 // Database configuration
-installer.db_type = 'sqlite3'       // Default: 'sqlite3' (options: 'sqlite3', 'postgres', 'mysql')
-installer.db_path = '/data/gitea/gitea.db'  // Default: '/data/gitea/gitea.db'
+installer.db_type = 'sqlite3'       // Default: 'sqlite3' (options: 'sqlite3', 'postgres')
+installer.db_path = '/data/gitea/gitea.db'  // Default: '/data/gitea/gitea.db' (for sqlite3)
+
+// PostgreSQL configuration (only used when db_type = 'postgres')
+installer.db_host = 'postgres'      // Default: 'postgres' (PostgreSQL service name)
+installer.db_name = 'gitea'         // Default: 'gitea' (PostgreSQL database name)
+installer.db_user = 'gitea'         // Default: 'gitea' (PostgreSQL user)
+installer.db_password = 'gitea'     // Default: 'gitea' (PostgreSQL password)
 
 // Registration
 installer.disable_registration = false  // Default: false (allow new user registration)
@@ -53,6 +59,8 @@ installer.disable_registration = false  // Default: false (allow new user regist
 installer.storage_size = '5Gi'      // Default: '5Gi' (PVC storage size)
 ```
 
+**Note**: When using `db_type = 'postgres'`, a PostgreSQL pod will be automatically deployed in the same namespace. The installer only supports `sqlite3` and `postgres` database types.
+
 ## Full Example
 
 ```v
@@ -79,6 +87,34 @@ installer.install()!
 println('Gitea: https://${installer.hostname}.gent01.grid.tf')
 ```
 
+## PostgreSQL Example
+
+To use PostgreSQL instead of SQLite:
+
+```v
+import incubaid.herolib.installers.k8s.gitea
+
+mut installer := gitea.get(
+    name:   'mygitea'
+    create: true
+)!
+
+// Configure to use PostgreSQL
+installer.db_type = 'postgres'          // Use PostgreSQL
+installer.storage_size = '10Gi'         // Storage for both Gitea and PostgreSQL
+
+// Optional: customize PostgreSQL settings
+installer.db_host = 'postgres'          // PostgreSQL service name
+installer.db_name = 'gitea'             // Database name
+installer.db_user = 'gitea'             // Database user
+installer.db_password = 'securepassword' // Database password
+
+// Install (PostgreSQL pod will be deployed automatically)
+installer.install()!
+
+println('Gitea with PostgreSQL: https://${installer.hostname}.gent01.grid.tf')
+```
+
 ## Management
 
 ### Check Installation Status

lib/installers/k8s/gitea/gitea_actions.v

@@ -69,7 +69,20 @@ fn install() ! {
 	// 3. Verify TFGW deployment
 	verify_tfgw_deployment(tfgw_name: 'gitea', namespace: installer.namespace)!
 
-	// 4. Apply Gitea App YAML
+	// 4. Apply PostgreSQL YAML if postgres is selected
+	if installer.db_type == 'postgres' {
+		console.print_info('Applying PostgreSQL YAML file to the cluster...')
+		res_postgres := k8s.apply_yaml('/tmp/gitea/postgres.yaml')!
+		if !res_postgres.success {
+			return error('Failed to apply postgres.yaml: ${res_postgres.stderr}')
+		}
+		console.print_info('PostgreSQL YAML file applied successfully.')
+
+		// Verify PostgreSQL pod is ready
+		verify_postgres_pod(namespace: installer.namespace)!
+	}
+
+	// 5. Apply Gitea App YAML
 	console.print_info('Applying Gitea App YAML file to the cluster...')
 	res2 := k8s.apply_yaml('/tmp/gitea/gitea.yaml')!
 	if !res2.success {
@@ -77,7 +90,7 @@ fn install() ! {
 	}
 	console.print_info('Gitea App YAML file applied successfully.')
 
-	// 5. Verify deployment status
+	// 6. Verify deployment status
 	console.print_info('Verifying deployment status...')
 	mut is_running := false
 	for i in 0 .. max_deployment_retries {
@@ -105,6 +118,45 @@ pub mut:
 	namespace string // namespace name for gitea deployments/services
 }
 
+// params for verifying postgres pod is ready
+@[params]
+struct VerifyPostgresPod {
+pub mut:
+	namespace string // namespace name for postgres pod
+}
+
+// Function for verifying postgres pod is ready
+fn verify_postgres_pod(args VerifyPostgresPod) ! {
+	console.print_info('Verifying PostgreSQL pod is ready...')
+	installer := get()!
+	mut k8s := installer.kube_client
+	mut is_ready := false
+
+	for i in 0 .. max_deployment_retries {
+		// Check if postgres pod exists and is running
+		result := k8s.kubectl_exec(
+			command: 'get pod ${installer.db_host} -n ${args.namespace} -o jsonpath="{.status.phase}"'
+		) or {
+			console.print_info('Waiting for PostgreSQL pod to be created... (${i + 1}/${max_deployment_retries})')
+			time.sleep(deployment_check_interval_seconds * time.second)
+			continue
+		}
+
+		if result.success && result.stdout == 'Running' {
+			is_ready = true
+			break
+		}
+		console.print_info('Waiting for PostgreSQL pod to be ready... (${i + 1}/${max_deployment_retries})')
+		time.sleep(deployment_check_interval_seconds * time.second)
+	}
+
+	if !is_ready {
+		console.print_stderr('PostgreSQL pod failed to become ready.')
+		return error('PostgreSQL pod failed to become ready.')
+	}
+	console.print_info('PostgreSQL pod is ready.')
+}
+
 // Function for verifying the generating of of the FQDN using tfgw crd
 fn verify_tfgw_deployment(args VerifyTfgwDeployment) ! {
 	console.print_info('Verifying TFGW deployment for ${args.tfgw_name}...')

lib/installers/k8s/gitea/gitea_model.v

@@ -22,6 +22,11 @@ pub mut:
 	db_type              string // Database type (sqlite3, postgres, mysql)
 	db_path              string // Database path for SQLite
 	storage_size         string // PVC storage size
+	// Postgres-specific settings
+	db_host     string // Database host (for postgres)
+	db_name     string // Database name (for postgres)
+	db_user     string // Database user (for postgres)
+	db_password string // Database password (for postgres)
 }
 
 @[heap]
@@ -38,9 +43,15 @@ pub mut:
 	db_type              string = 'sqlite3'
 	db_path              string = '/data/gitea/gitea.db'
 	storage_size         string = '5Gi'
+	// PostgreSQL configuration (only used when db_type = 'postgres')
+	db_host     string = 'postgres' // PostgreSQL host (service name)
+	db_name     string = 'gitea'    // PostgreSQL database name
+	db_user     string = 'gitea'    // PostgreSQL user
+	db_password string = 'gitea'    // PostgreSQL password
 	// Internal paths
 	gitea_app_path string = '/tmp/gitea/gitea.yaml'
 	tfgw_path      string = '/tmp/gitea/tfgw-gitea.yaml'
+	postgres_path  string = '/tmp/gitea/postgres.yaml'
 	kube_client    kubernetes.KubeClient @[skip]
 }
 
@@ -58,7 +69,7 @@ fn obj_init(mycfg_ GiteaK8SInstaller) !GiteaK8SInstaller {
 	mycfg.name = mycfg.name.replace('.', '')
 
 	if mycfg.namespace == '' {
-		mycfg.namespace = '${mycfg.name}gitea-namespace'
+		mycfg.namespace = '${mycfg.name}-gitea-namespace'
 	}
 
 	if mycfg.namespace.contains('_') || mycfg.namespace.contains('.') {
@@ -70,6 +81,12 @@ fn obj_init(mycfg_ GiteaK8SInstaller) !GiteaK8SInstaller {
 		mycfg.hostname = '${mycfg.name}giteaapp'
 	}
 
+	// Validate database type
+	if mycfg.db_type !in ['sqlite3', 'postgres'] {
+		console.print_stderr('Only sqlite3 and postgres databases are supported. Got: ${mycfg.db_type}')
+		return error('Unsupported database type: ${mycfg.db_type}. Only sqlite3 and postgres are supported.')
+	}
+
 	mycfg.kube_client = kubernetes.get(create: true)!
 	mycfg.kube_client.config.namespace = mycfg.namespace
 	return mycfg
@@ -104,6 +121,11 @@ fn configure() ! {
 		db_type:              installer.db_type
 		db_path:              installer.db_path
 		storage_size:         installer.storage_size
+		// Postgres connection details (use full DNS name for service)
+		db_host:     '${installer.db_host}.${installer.namespace}.svc.cluster.local'
+		db_name:     installer.db_name
+		db_user:     installer.db_user
+		db_password: installer.db_password
 	}
 
 	// Ensure the output directory exists
@@ -123,6 +145,14 @@ fn configure() ! {
 	mut gitea_app_path := pathlib.get_file(path: installer.gitea_app_path, create: true)!
 	gitea_app_path.write(gitea_app_yaml)!
 
+	// Generate postgres YAML if postgres is selected
+	if installer.db_type == 'postgres' {
+		postgres_yaml := $tmpl('./templates/postgres.yaml')
+		mut postgres_path := pathlib.get_file(path: installer.postgres_path, create: true)!
+		postgres_path.write(postgres_yaml)!
+		console.print_info('PostgreSQL configuration file generated.')
+	}
+
 	console.print_info('Configuration files generated successfully.')
 }
 

lib/installers/k8s/gitea/templates/gitea.yaml

@@ -47,8 +47,20 @@ spec:
               value: "false"
             - name: GITEA__database__DB_TYPE
               value: "@{config_values.db_type}"
+@if config_values.db_type == 'sqlite3'
             - name: GITEA__database__PATH
               value: "@{config_values.db_path}"
+@end
+@if config_values.db_type == 'postgres'
+            - name: GITEA__database__HOST
+              value: "@{config_values.db_host}"
+            - name: GITEA__database__NAME
+              value: "@{config_values.db_name}"
+            - name: GITEA__database__USER
+              value: "@{config_values.db_user}"
+            - name: GITEA__database__PASSWD
+              value: "@{config_values.db_password}"
+@end
             - name: GITEA__service__DISABLE_REGISTRATION
               value: "@{config_values.disable_registration}"
           volumeMounts:

lib/installers/k8s/gitea/templates/postgres.yaml

@@ -0,0 +1,56 @@
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: postgres-data
+  namespace: @{config_values.namespace}
+spec:
+  accessModes: [ReadWriteOnce]
+  resources:
+    requests:
+      storage: @{config_values.storage_size}
+---
+apiVersion: v1
+kind: Pod
+metadata:
+  name: @{config_values.db_host}
+  namespace: @{config_values.namespace}
+  labels:
+    app: @{config_values.db_host}
+spec:
+  containers:
+  - name: postgres
+    image: postgres:16-alpine
+    env:
+    - name: POSTGRES_DB
+      value: @{config_values.db_name}
+    - name: POSTGRES_USER
+      value: @{config_values.db_user}
+    - name: POSTGRES_PASSWORD
+      value: @{config_values.db_password}
+    - name: PGDATA
+      value: /var/lib/postgresql/data/pgdata
+    ports:
+    - containerPort: 5432
+      name: postgres
+    volumeMounts:
+    - name: postgres-storage
+      mountPath: /var/lib/postgresql/data
+  volumes:
+  - name: postgres-storage
+    persistentVolumeClaim:
+      claimName: postgres-data
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: @{config_values.db_host}
+  namespace: @{config_values.namespace}
+spec:
+  selector:
+    app: @{config_values.db_host}
+  ports:
+  - port: 5432
+    targetPort: 5432
+    name: postgres
+  type: ClusterIP
+