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|
package main
import (
"context"
"flag"
"fmt"
"os"
"runtime"
// Import all Kubernetes client auth plugins (e.g. Azure, GCP, OIDC, etc.)
_ "k8s.io/client-go/plugin/pkg/client/auth"
"demo/vnfs/DAaaS/collectd-operator/pkg/apis"
"demo/vnfs/DAaaS/collectd-operator/pkg/controller"
"github.com/operator-framework/operator-sdk/pkg/k8sutil"
"github.com/operator-framework/operator-sdk/pkg/leader"
"github.com/operator-framework/operator-sdk/pkg/log/zap"
"github.com/operator-framework/operator-sdk/pkg/metrics"
"github.com/operator-framework/operator-sdk/pkg/restmapper"
sdkVersion "github.com/operator-framework/operator-sdk/version"
"github.com/spf13/pflag"
"sigs.k8s.io/controller-runtime/pkg/client/config"
"sigs.k8s.io/controller-runtime/pkg/manager"
logf "sigs.k8s.io/controller-runtime/pkg/runtime/log"
"sigs.k8s.io/controller-runtime/pkg/runtime/signals"
)
// Change below variables to serve metrics on different host or port.
var (
metricsHost = "0.0.0.0"
metricsPort int32 = 8383
)
var log = logf.Log.WithName("cmd")
func printVersion() {
log.Info(fmt.Sprintf("Go Version: %s", runtime.Version()))
log.Info(fmt.Sprintf("Go OS/Arch: %s/%s", runtime.GOOS, runtime.GOARCH))
log.Info(fmt.Sprintf("Version of operator-sdk: %v", sdkVersion.Version))
}
func main() {
// Add the zap logger flag set to the CLI. The flag set must
// be added before calling pflag.Parse().
pflag.CommandLine.AddFlagSet(zap.FlagSet())
// Add flags registered by imported packages (e.g. glog and
// controller-runtime)
pflag.CommandLine.AddGoFlagSet(flag.CommandLine)
pflag.Parse()
// Use a zap logr.Logger implementation. If none of the zap
// flags are configured (or if the zap flag set is not being
// used), this defaults to a production zap logger.
//
// The logger instantiated here can be changed to any logger
// implementing the logr.Logger interface. This logger will
// be propagated through the whole operator, generating
// uniform and structured logs.
logf.SetLogger(zap.Logger())
printVersion()
namespace, err := k8sutil.GetWatchNamespace()
if err != nil {
log.Error(err, "Failed to get watch namespace")
os.Exit(1)
}
// Get a config to talk to the apiserver
cfg, err := config.GetConfig()
if err != nil {
log.Error(err, "")
os.Exit(1)
}
ctx := context.TODO()
// Become the leader before proceeding
err = leader.Become(ctx, "collectd-operator-lock")
if err != nil {
log.Error(err, "")
os.Exit(1)
}
// Create a new Cmd to provide shared dependencies and start components
mgr, err := manager.New(cfg, manager.Options{
Namespace: namespace,
MapperProvider: restmapper.NewDynamicRESTMapper,
MetricsBindAddress: fmt.Sprintf("%s:%d", metricsHost, metricsPort),
})
if err != nil {
log.Error(err, "")
os.Exit(1)
}
log.Info("Registering Components.")
// Setup Scheme for all resources
if err := apis.AddToScheme(mgr.GetScheme()); err != nil {
log.Error(err, "")
os.Exit(1)
}
// Setup all Controllers
if err := controller.AddToManager(mgr); err != nil {
log.Error(err, "")
os.Exit(1)
}
// Create Service object to expose the metrics port.
_, err = metrics.ExposeMetricsPort(ctx, metricsPort)
if err != nil {
log.Info(err.Error())
}
log.Info("Starting the Cmd.")
// Start the Cmd
if err := mgr.Start(signals.SetupSignalHandler()); err != nil {
log.Error(err, "Manager exited non-zero")
os.Exit(1)
}
}
|
