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Add metrics server check at startup

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This commit is contained in:
Stefan Prodan
2018-09-26 11:58:55 +03:00
parent 1b7210ec74
commit 81157572f1
3 changed files with 49 additions and 8 deletions
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cmd/controller/main.go
+10 -6
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@@ -14,7 +14,6 @@ import (
"github.com/stefanprodan/steerer/pkg/logging"
"github.com/stefanprodan/steerer/pkg/server"
"github.com/stefanprodan/steerer/pkg/version"
"go.uber.org/zap"
"k8s.io/client-go/kubernetes"
_ "k8s.io/client-go/plugin/pkg/client/auth/gcp"
"k8s.io/client-go/tools/cache"
@@ -73,16 +72,21 @@ func main() {
rolloutInformerFactory := informers.NewSharedInformerFactory(rolloutClient, time.Second*30)
rolloutInformer := rolloutInformerFactory.Apps().V1beta1().Rollouts()
logger.Infof("Starting steerer version %s revision %s", version.VERSION, version.REVISION)
ver, err := kubeClient.Discovery().ServerVersion()
if err != nil {
logger.Fatalf("Error calling Kubernetes API: %v", err)
}
logger.Infow("Starting steerer",
zap.String("version", version.VERSION),
zap.String("revision", version.REVISION),
zap.String("metrics provider", metricsServer),
zap.Any("kubernetes version", ver))
logger.Infof("Connected to Kubernetes API %s", ver)
ok, err := controller.CheckMetricsServer(metricsServer)
if ok {
logger.Infof("Connected to metrics server %s", metricsServer)
} else {
logger.Errorf("Metrics server %s unreachable %v", metricsServer, err)
}
// start HTTP server
go server.ListenAndServe(port, 3*time.Second, logger, stopCh)