10666: Added version number to go sdk and go tools & services

[arvados.git] / services / keep-balance / main.go

diff --git a/services/keep-balance/main.go b/services/keep-balance/main.go
index 8a938ccf5308393311a121835c1eaef631f194ca..fe4a8c41c572932853076a8b0465d5e0bee01049 100644 (file)
--- a/services/keep-balance/main.go
+++ b/services/keep-balance/main.go
@@ -7,6 +7,7 @@ package main
 import (
        "encoding/json"
        "flag"
+       "fmt"
        "log"
        "os"
        "os/signal"
@@ -15,6 +16,7 @@ import (
 
        "git.curoverse.com/arvados.git/sdk/go/arvados"
        "git.curoverse.com/arvados.git/sdk/go/config"
+       arvadosVersion "git.curoverse.com/arvados.git/sdk/go/version"
 )
 
 const defaultConfigPath = "/etc/arvados/keep-balance/keep-balance.yml"
@@ -85,9 +87,16 @@ func main() {
        dumpConfig := flag.Bool("dump-config", false, "write current configuration to stdout and exit")
        dumpFlag := flag.Bool("dump", false, "dump details for each block to stdout")
        debugFlag := flag.Bool("debug", false, "enable debug messages")
+       getVersion := flag.Bool("version", false, "Print version information and exit.")
        flag.Usage = usage
        flag.Parse()
 
+       // Print version information if requested
+       if *getVersion {
+               fmt.Printf("Version: %s\n", arvadosVersion.GetVersion())
+               os.Exit(0)
+       }
+
        mustReadConfig(&cfg, *configPath)
        if *serviceListPath != "" {
                mustReadConfig(&cfg.KeepServiceList, *serviceListPath)
@@ -97,6 +106,8 @@ func main() {
                log.Fatal(config.DumpAndExit(cfg))
        }
 
+       log.Printf("keep-balance %q started", arvadosVersion.GetVersion())
+
        if *debugFlag {
                debugf = log.Printf
                if j, err := json.Marshal(cfg); err != nil {