Server: Switch from separate server & cli to a unified grafana binary (#58286)

* avoid the need for a second bulky binary for grafana-cli

* look for grafana-server in $PATH as well as same directory

* implement unified "grafana" command

* update dockerfiles, fix grafana-cli -v

* update packaging to work with single binary

- add wrapper scripts for grafana and grafana-server
- update and sync package files
- implement --sign flag of build package command
- stop packaging scripts folder, they are not useful for end users
- add support for --configOverrides in server command
- remove unused nfpm.yaml config file

* windows support

pkg/build/cmd.go

@@ -17,11 +17,12 @@ const (
 	GoOSWindows = "windows"
 	GoOSLinux   = "linux"
 
-	ServerBinary = "grafana-server"
-	CLIBinary    = "grafana-cli"
+	BackendBinary = "grafana"
+	ServerBinary  = "grafana-server"
+	CLIBinary     = "grafana-cli"
 )
 
-var binaries = []string{ServerBinary, CLIBinary}
+var binaries = []string{BackendBinary, ServerBinary, CLIBinary}
 
 func logError(message string, err error) int {
 	log.Println(message, err)
@@ -64,6 +65,16 @@ func RunCmd() int {
 		case "setup":
 			setup(opts.goos)
 
+		case "build-backend":
+			if !opts.isDev {
+				clean(opts)
+			}
+
+			if err := doBuild("grafana", "./pkg/cmd/grafana", opts); err != nil {
+				log.Println(err)
+				return 1
+			}
+
 		case "build-srv", "build-server":
 			if !opts.isDev {
 				clean(opts)