agent: Add version to info output

command/agent/agent.go

@@ -514,6 +514,16 @@ func (a *Agent) Stats() map[string]map[string]string {
 		"checks":         toString(uint64(len(a.state.checks))),
 		"services":       toString(uint64(len(a.state.services))),
 	}
+
+	revision := a.config.Revision
+	if len(revision) > 8 {
+		revision = revision[:8]
+	}
+	stats["build"] = map[string]string{
+		"revision":   revision,
+		"version":    a.config.Version,
+		"prerelease": a.config.VersionPrerelease,
+	}
 	return stats
 }
 

command/agent/command.go

@@ -25,14 +25,17 @@ var gracefulTimeout = 5 * time.Second
 // ShutdownCh. If two messages are sent on the ShutdownCh it will forcibly
 // exit.
 type Command struct {
-	Ui         cli.Ui
-	ShutdownCh <-chan struct{}
-	args       []string
-	logFilter  *logutils.LevelFilter
-	agent      *Agent
-	rpcServer  *AgentRPC
-	httpServer *HTTPServer
-	dnsServer  *DNSServer
+	Revision          string
+	Version           string
+	VersionPrerelease string
+	Ui                cli.Ui
+	ShutdownCh        <-chan struct{}
+	args              []string
+	logFilter         *logutils.LevelFilter
+	agent             *Agent
+	rpcServer         *AgentRPC
+	httpServer        *HTTPServer
+	dnsServer         *DNSServer
 }
 
 // readConfig is responsible for setup of our configuration using
@@ -124,6 +127,11 @@ func (c *Command) readConfig() *Config {
 		c.Ui.Error("WARNING: Windows is not recommended as a Consul server. Do not use in production.")
 	}
 
+	// Set the version info
+	config.Revision = c.Revision
+	config.Version = c.Version
+	config.VersionPrerelease = c.VersionPrerelease
+
 	return config
 }
 

command/agent/config.go

@@ -154,6 +154,15 @@ type Config struct {
 
 	// ConsulConfig can either be provided or a default one created
 	ConsulConfig *consul.Config `mapstructure:"-" json:"-"`
+
+	// Revision is the GitCommit this maps to
+	Revision string `mapstructure:"-"`
+
+	// Version is the release version number
+	Version string `mapstructure:"-"`
+
+	// VersionPrerelease is a label for pre-release builds
+	VersionPrerelease string `mapstructure:"-"`
 }
 
 type dirEnts []os.FileInfo

commands.go

@@ -17,8 +17,11 @@ func init() {
 	Commands = map[string]cli.CommandFactory{
 		"agent": func() (cli.Command, error) {
 			return &agent.Command{
-				Ui:         ui,
-				ShutdownCh: make(chan struct{}),
+				Revision:          GitCommit,
+				Version:           Version,
+				VersionPrerelease: VersionPrerelease,
+				Ui:                ui,
+				ShutdownCh:        make(chan struct{}),
 			}, nil
 		},