mcs: add log flags (#6777)

ref #5766

Signed-off-by: Ryan Leung <rleungx@gmail.com>

cmd/pd-server/main.go

@@ -86,6 +86,8 @@ func NewTSOServiceCommand() *cobra.Command {
 	cmd.Flags().StringP("cacert", "", "", "path of file that contains list of trusted TLS CAs")
 	cmd.Flags().StringP("cert", "", "", "path of file that contains X509 certificate in PEM format")
 	cmd.Flags().StringP("key", "", "", "path of file that contains X509 key in PEM format")
+	cmd.Flags().StringP("log-level", "L", "info", "log level: debug, info, warn, error, fatal (default 'info')")
+	cmd.Flags().StringP("log-file", "", "", "log file path")
 	return cmd
 }
 
@@ -104,6 +106,8 @@ func NewResourceManagerServiceCommand() *cobra.Command {
 	cmd.Flags().StringP("cacert", "", "", "path of file that contains list of trusted TLS CAs")
 	cmd.Flags().StringP("cert", "", "", "path of file that contains X509 certificate in PEM format")
 	cmd.Flags().StringP("key", "", "", "path of file that contains X509 key in PEM format")
+	cmd.Flags().StringP("log-level", "L", "info", "log level: debug, info, warn, error, fatal (default 'info')")
+	cmd.Flags().StringP("log-file", "", "", "log file path")
 	return cmd
 }
 

pkg/mcs/resourcemanager/server/config.go

@@ -77,6 +77,9 @@ type Config struct {
 
 	Security configutil.SecurityConfig `toml:"security" json:"security"`
 
+	// WarningMsgs contains all warnings during parsing.
+	WarningMsgs []string
+
 	// LeaderLease defines the time within which a Resource Manager primary/leader must
 	// update its TTL in etcd, otherwise etcd will expire the leader key and other servers
 	// can campaign the primary/leader again. Etcd only supports seconds TTL, so here is
@@ -196,11 +199,9 @@ func (c *Config) Parse(flagSet *pflag.FlagSet) error {
 // Adjust is used to adjust the resource manager configurations.
 func (c *Config) Adjust(meta *toml.MetaData, reloading bool) error {
 	configMetaData := configutil.NewConfigMetadata(meta)
-	warningMsgs := make([]string, 0)
 	if err := configMetaData.CheckUndecoded(); err != nil {
-		warningMsgs = append(warningMsgs, err.Error())
+		c.WarningMsgs = append(c.WarningMsgs, err.Error())
 	}
-	configutil.PrintConfigCheckMsg(os.Stdout, warningMsgs)
 
 	if c.Name == "" {
 		hostname, err := os.Hostname()

pkg/mcs/resourcemanager/server/server.go

@@ -32,7 +32,9 @@ import (
 	"time"
 
 	grpcprometheus "github.com/grpc-ecosystem/go-grpc-prometheus"
+	"github.com/pingcap/kvproto/pkg/diagnosticspb"
 	"github.com/pingcap/log"
+	"github.com/pingcap/sysutil"
 	"github.com/soheilhy/cmux"
 	"github.com/spf13/cobra"
 	"github.com/tikv/pd/pkg/errs"
@@ -53,8 +55,11 @@ import (
 
 // Server is the resource manager server, and it implements bs.Server.
 type Server struct {
+	diagnosticspb.DiagnosticsServer
 	// Server state. 0 is not running, 1 is running.
 	isRunning int64
+	// Server start timestamp
+	startTimestamp int64
 
 	ctx              context.Context
 	serverLoopCtx    context.Context
@@ -419,13 +424,15 @@ func (s *Server) startServer() (err error) {
 	return nil
 }
 
-// NewServer creates a new resource manager server.
-func NewServer(ctx context.Context, cfg *Config) *Server {
-	return &Server{
-		name: cfg.Name,
-		ctx:  ctx,
-		cfg:  cfg,
+// CreateServer creates the Server
+func CreateServer(ctx context.Context, cfg *Config) *Server {
+	svr := &Server{
+		DiagnosticsServer: sysutil.NewDiagnosticsServer(cfg.Log.File.Filename),
+		startTimestamp:    time.Now().Unix(),
+		cfg:               cfg,
+		ctx:               ctx,
 	}
+	return svr
 }
 
 // CreateServerWrapper encapsulates the configuration/log/metrics initialization and create the server
@@ -459,15 +466,14 @@ func CreateServerWrapper(cmd *cobra.Command, args []string) {
 	// Flushing any buffered log entries
 	defer log.Sync()
 
-	versioninfo.Log("resource manager")
-	log.Info("resource manager config", zap.Reflect("config", cfg))
+	versioninfo.Log("Resource Manager")
+	log.Info("Resource Manager config", zap.Reflect("config", cfg))
 
 	grpcprometheus.EnableHandlingTimeHistogram()
-
 	metricutil.Push(&cfg.Metric)
 
 	ctx, cancel := context.WithCancel(context.Background())
-	svr := NewServer(ctx, cfg)
+	svr := CreateServer(ctx, cfg)
 
 	sc := make(chan os.Signal, 1)
 	signal.Notify(sc,

pkg/mcs/resourcemanager/server/testutil.go

@@ -34,7 +34,7 @@ func NewTestServer(ctx context.Context, re *require.Assertions, cfg *Config) (*S
 	// Flushing any buffered log entries
 	defer log.Sync()
 
-	s := NewServer(ctx, cfg)
+	s := CreateServer(ctx, cfg)
 	if err = s.Run(); err != nil {
 		return nil, nil, err
 	}