API Server: Standalone observability (#84789)

Adds support for logs (specify level), metrics (enable metrics and Prometheus /metrics endpoint 
and traces (jaeger or otlp) for standalone API server. This will allow any grafana core service 
part of standalone apiserver to use logging, metrics and traces as normal.

pkg/cmd/grafana-server/commands/buildinfo.go

@@ -16,7 +16,7 @@ func getBuildstamp(opts ServerOptions) int64 {
 	return buildstampInt64
 }
 
-func setBuildInfo(opts ServerOptions) {
+func SetBuildInfo(opts ServerOptions) {
 	setting.BuildVersion = opts.Version
 	setting.BuildCommit = opts.Commit
 	setting.EnterpriseBuildCommit = opts.EnterpriseCommit

pkg/cmd/grafana-server/commands/cli.go

@@ -98,7 +98,7 @@ func RunServer(opts ServerOptions) error {
 		}
 	}()
 
-	setBuildInfo(opts)
+	SetBuildInfo(opts)
 	checkPrivileges()
 
 	configOptions := strings.Split(ConfigOverrides, " ")
@@ -112,7 +112,7 @@ func RunServer(opts ServerOptions) error {
 		return err
 	}
 
-	metrics.SetBuildInformation(metrics.ProvideRegisterer(cfg), opts.Version, opts.Commit, opts.BuildBranch, getBuildstamp(opts))
+	metrics.SetBuildInformation(metrics.ProvideRegisterer(), opts.Version, opts.Commit, opts.BuildBranch, getBuildstamp(opts))
 
 	s, err := server.Initialize(
 		cfg,

pkg/cmd/grafana-server/commands/target.go

@@ -75,7 +75,7 @@ func RunTargetServer(opts ServerOptions) error {
 		}
 	}()
 
-	setBuildInfo(opts)
+	SetBuildInfo(opts)
 	checkPrivileges()
 
 	configOptions := strings.Split(ConfigOverrides, " ")
@@ -89,7 +89,7 @@ func RunTargetServer(opts ServerOptions) error {
 		return err
 	}
 
-	metrics.SetBuildInformation(metrics.ProvideRegisterer(cfg), opts.Version, opts.Commit, opts.BuildBranch, getBuildstamp(opts))
+	metrics.SetBuildInformation(metrics.ProvideRegisterer(), opts.Version, opts.Commit, opts.BuildBranch, getBuildstamp(opts))
 
 	s, err := server.InitializeModuleServer(
 		cfg,