switch to postgresql

installer/install.sh

@@ -621,13 +621,17 @@ import (
 
 func main() {
 	addr := env("ATLAS_HTTP_ADDR", ":8080")
-	dbPath := env("ATLAS_DB_PATH", "data/atlas.db")
+	// Support both ATLAS_DB_PATH (SQLite) and ATLAS_DB_CONN (PostgreSQL connection string)
+	dbConn := env("ATLAS_DB_CONN", "")
+	if dbConn == "" {
+		dbConn = env("ATLAS_DB_PATH", "data/atlas.db")
+	}
 
 	app, err := httpapp.New(httpapp.Config{
 		Addr:         addr,
 		TemplatesDir: "web/templates",
 		StaticDir:    "web/static",
-		DatabasePath: dbPath,
+		DatabaseConn: dbConn,
 	})
 	if err != nil {
 		log.Fatalf("init app: %v", err)
@@ -878,6 +882,7 @@ SyslogIdentifier=atlas-api
 # Environment variables
 Environment="ATLAS_HTTP_ADDR=$HTTP_ADDR"
 Environment="ATLAS_DB_PATH=$DB_PATH"
+Environment="ATLAS_DB_CONN=$DB_PATH"
 Environment="ATLAS_BACKUP_DIR=$BACKUP_DIR"
 Environment="ATLAS_LOG_LEVEL=INFO"
 Environment="ATLAS_LOG_FORMAT=json"
@@ -910,8 +915,11 @@ create_config() {
 # HTTP Server
 ATLAS_HTTP_ADDR=$HTTP_ADDR
 
-# Database
+# Database (SQLite path or PostgreSQL connection string)
+# For SQLite: ATLAS_DB_PATH=/var/lib/atlas/atlas.db
+# For PostgreSQL: ATLAS_DB_CONN=postgres://user:pass@host:port/dbname?sslmode=disable
 ATLAS_DB_PATH=$DB_PATH
+ATLAS_DB_CONN=
 
 # Backup Directory
 ATLAS_BACKUP_DIR=$BACKUP_DIR