refactor: Migrate PostgreSQL installer to Podman

- Replaced the previous systemd-based PostgreSQL installer with a
Podman-based solution. This simplifies the installation process
and improves compatibility across different Linux distributions.
- The new installer uses Podman containers to manage the
PostgreSQL database, eliminating the need for complex systemd
configurations and package management.
- This change enhances portability and reduces the risk of
conflicts with existing system packages.  The destroy_ function
now cleanly removes the Podman container.  The installed_ and
check functions now verify the container's health.

Co-authored-by: mario <mariobassem12@gmail.com>

lib/installers/db/postgresql/postgresql_actions.v

@@ -4,8 +4,18 @@ import freeflowuniverse.herolib.osal
 import freeflowuniverse.herolib.ui.console
 import freeflowuniverse.herolib.installers.virt.podman as podman_installer
 import freeflowuniverse.herolib.osal.zinit
+import os
 
 fn installed_() !bool {
+	mut cfg := get()!
+	mut podman := podman_installer.get()!
+	podman.install()!
+	cmd := 'podman healthcheck run ${cfg.container_name}'
+	result := os.execute(cmd)
+
+	if result.exit_code != 0 {
+		return error("Postgresql container isn't running: ${result.output}")
+	}
 	return true
 }
 
@@ -52,41 +62,13 @@ fn stop_post() ! {
 }
 
 fn destroy_() ! {
-	mut mydb := get()!
-	mydb.destroy()!
+	// remove the podman postgresql container
+	mut cfg := get()!
+	cmd := 'podman rm -f ${cfg.container_name}'
+	result := os.execute(cmd)
 
-	// mut cfg := get()!
-	// osal.rm("
-	//     ${cfg.path}
-	//     /etc/postgresql/
-	//     /etc/postgresql-common/
-	//     /var/lib/postgresql/
-	//     /etc/systemd/system/multi-user.target.wants/postgresql
-	//     /lib/systemd/system/postgresql.service
-	//     /lib/systemd/system/postgresql@.service
-	// ")!
-
-	// c := '
-
-	// #dont die
-	// set +e
-
-	// # Stop the PostgreSQL service
-	// sudo systemctl stop postgresql
-
-	// # Purge PostgreSQL packages
-	// sudo apt-get purge -y postgresql* pgdg-keyring
-
-	// # Remove all data and configurations
-	// sudo userdel -r postgres
-	// sudo groupdel postgres
-
-	// # Reload systemd configurations and reset failed systemd entries
-	// sudo systemctl daemon-reload
-	// sudo systemctl reset-failed
-
-	// echo "PostgreSQL has been removed completely"
-
-	// '
-	// osal.exec(cmd: c)!
+	if result.exit_code != 0 {
+		return error("Postgresql container isn't running: ${result.output}")
+	}
+	console.print_header('Postgresql container removed')
 }

lib/installers/db/postgresql/postgresql_db.v

@@ -41,14 +41,14 @@ pub fn (mut server Postgresql) check() ! {
 
 	db.exec('SELECT version();') or { return error('postgresql could not do select version') }
 
-	cmd := 'podman healthcheck run ${server.name}'
+	cmd := 'podman healthcheck run ${server.container_name}'
 	result := os.execute(cmd)
 
 	if result.exit_code != 0 {
 		return error("Postgresql container isn't healthy: ${result.output}")
 	}
 
-	container_id := 'podman container inspect default --format {{.Id}}'
+	container_id := 'podman container inspect ${server.container_name} --format {{.Id}}'
 	container_id_result := os.execute(container_id)
 	if container_id_result.exit_code != 0 {
 		return error('Cannot get the container ID: ${result.output}')

lib/installers/db/postgresql/postgresql_factory_.v

@@ -98,7 +98,8 @@ pub fn play(args_ PlayArgs) ! {
 	if install_actions.len > 0 {
 		for install_action in install_actions {
 			mut p := install_action.params
-			cfg_play(p)!
+			mycfg := cfg_play(p)!
+			set(mycfg)!
 		}
 	}
 }

lib/installers/db/postgresql/postgresql_model.v

@@ -15,29 +15,32 @@ pub fn heroscript_default() !string {
         host: 'localhost'
         port: 5432
         volume_path:'/var/lib/postgresql/data'
+		container_name: 'herocontainer_postgresql'
         "
 	return heroscript
 }
 
 pub struct Postgresql {
 pub mut:
-	name         string = 'default'
-	user         string = 'postgres'
-	password     string = 'postgres'
-	host         string = 'localhost'
-	volume_path  string = '/var/lib/postgresql/data'
-	port         int    = 5432
-	container_id string
+	name           string = 'default'
+	user           string = 'postgres'
+	password       string = 'postgres'
+	host           string = 'localhost'
+	volume_path    string = '/var/lib/postgresql/data'
+	container_name string = 'herocontainer_postgresql'
+	port           int    = 5432
+	container_id   string
 }
 
 fn cfg_play(p paramsparser.Params) !Postgresql {
 	mut mycfg := Postgresql{
-		name:        p.get_default('name', 'default')!
-		user:        p.get_default('user', 'postgres')!
-		password:    p.get_default('password', 'postgres')!
-		host:        p.get_default('host', 'localhost')!
-		port:        p.get_int_default('port', 5432)!
-		volume_path: p.get_default('path', '/var/lib/postgresql/data')!
+		name:           p.get_default('name', 'default')!
+		user:           p.get_default('user', 'postgres')!
+		password:       p.get_default('password', 'postgres')!
+		host:           p.get_default('host', 'localhost')!
+		port:           p.get_int_default('port', 5432)!
+		volume_path:    p.get_default('path', '/var/lib/postgresql/data')!
+		container_name: p.get_default('container_name', 'herocontainer_postgresql')!
 	}
 	return mycfg
 }