updated docs for using custom driver

README.md

@@ -19,6 +19,27 @@ wget downloads.drone.io/exp/drone.deb
 sudo dpkg -i drone.deb
 ```
 
+## Database
+
+By default, Drone will create a SQLite database. Drone also supports Postgres and MySQL
+databases. You can customize the database settings using the configuration options
+described in the **Setup** section.
+
+Below are some example configurations that you can use as reference:
+
+```
+# to use postgres
+[datasource]
+driver="postgres"
+source="host=172.17.0.2 user=postgres dbname=drone sslmode=disable"
+
+# to use mysql
+[datasource]
+driver="mysql"
+source="root@tcp(172.17.0.2:3306)/drone"
+
+```
+
 ## Setup
 
 We are in the process of moving configuration out of the UI and into configuration
@@ -33,6 +54,10 @@ The configuration file is in TOML format:
 
 ```toml
 
+[datasource]
+driver=""
+source=""
+
 [registration]
 open=true
 
@@ -73,6 +98,10 @@ Or you can use environment variables
 
 ```sh
 
+# custom database settings
+export DRONE_DATASOURCE_DRIVER=""
+export DRONE_DATASOURCE_SOURCE=""
+
 # enable users to self-register
 export DRONE_REGISTRATION_OPEN=false
 

server/main.go

@@ -79,7 +79,7 @@ func main() {
 	flag.StringVar(&prefix, "prefix", "DRONE_", "")
 	flag.Parse()
 
-	config.StringVar(&datasource, "database-path", "drone.sqlite")
+	config.StringVar(&datasource, "database-source", "drone.sqlite")
 	config.StringVar(&driver, "database-driver", "sqlite3")
 	config.Var(&nodes, "worker-nodes")
 	config.BoolVar(&open, "registration-open", false)