/
root.go
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/
root.go
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/*
Copyright © 2022 ESO Maintainer Team
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package cmd
import (
"os"
"time"
"github.com/spf13/cobra"
"go.uber.org/zap/zapcore"
v1 "k8s.io/api/core/v1"
apiextensionsv1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"
"k8s.io/apimachinery/pkg/runtime"
clientgoscheme "k8s.io/client-go/kubernetes/scheme"
// To allow using gcp auth.
_ "k8s.io/client-go/plugin/pkg/client/auth"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/controller"
"sigs.k8s.io/controller-runtime/pkg/log/zap"
esv1alpha1 "github.com/diegutierrez/external-secret-conjur/apis/externalsecrets/v1alpha1"
esv1beta1 "github.com/diegutierrez/external-secret-conjur/apis/externalsecrets/v1beta1"
"github.com/diegutierrez/external-secret-conjur/pkg/controllers/clusterexternalsecret"
"github.com/diegutierrez/external-secret-conjur/pkg/controllers/externalsecret"
"github.com/diegutierrez/external-secret-conjur/pkg/controllers/secretstore"
awsauth "github.com/diegutierrez/external-secret-conjur/pkg/provider/aws/auth"
)
var (
scheme = runtime.NewScheme()
setupLog = ctrl.Log.WithName("setup")
dnsName string
certDir string
metricsAddr string
healthzAddr string
controllerClass string
enableLeaderElection bool
enableSecretsCache bool
enableConfigMapsCache bool
concurrent int
port int
clientQPS float32
clientBurst int
loglevel string
namespace string
enableClusterStoreReconciler bool
enableClusterExternalSecretReconciler bool
enableFloodGate bool
storeRequeueInterval time.Duration
serviceName, serviceNamespace string
secretName, secretNamespace string
crdRequeueInterval time.Duration
certCheckInterval time.Duration
certLookaheadInterval time.Duration
enableAWSSession bool
)
const (
errCreateController = "unable to create controller"
)
func init() {
_ = clientgoscheme.AddToScheme(scheme)
_ = esv1beta1.AddToScheme(scheme)
_ = esv1alpha1.AddToScheme(scheme)
_ = apiextensionsv1.AddToScheme(scheme)
}
var rootCmd = &cobra.Command{
Use: "external-secrets",
Short: "operator that reconciles ExternalSecrets and SecretStores",
Long: `For more information visit https://external-secrets.io`,
Run: func(cmd *cobra.Command, args []string) {
var lvl zapcore.Level
// the client creates a ListWatch for all resource kinds that
// are requested with .Get().
// We want to avoid to cache all secrets or configmaps in memory.
// The ES controller uses v1.PartialObjectMetadata for the secrets
// that he owns.
// see #721
cacheList := make([]client.Object, 0)
if !enableSecretsCache {
cacheList = append(cacheList, &v1.Secret{})
}
if !enableConfigMapsCache {
cacheList = append(cacheList, &v1.ConfigMap{})
}
err := lvl.UnmarshalText([]byte(loglevel))
if err != nil {
setupLog.Error(err, "error unmarshalling loglevel")
os.Exit(1)
}
logger := zap.New(zap.Level(lvl))
ctrl.SetLogger(logger)
config := ctrl.GetConfigOrDie()
config.QPS = clientQPS
config.Burst = clientBurst
mgr, err := ctrl.NewManager(config, ctrl.Options{
Scheme: scheme,
MetricsBindAddress: metricsAddr,
Port: 9443,
LeaderElection: enableLeaderElection,
LeaderElectionID: "external-secrets-controller",
ClientDisableCacheFor: cacheList,
Namespace: namespace,
})
if err != nil {
setupLog.Error(err, "unable to start manager")
os.Exit(1)
}
if err = (&secretstore.StoreReconciler{
Client: mgr.GetClient(),
Log: ctrl.Log.WithName("controllers").WithName("SecretStore"),
Scheme: mgr.GetScheme(),
ControllerClass: controllerClass,
RequeueInterval: storeRequeueInterval,
}).SetupWithManager(mgr); err != nil {
setupLog.Error(err, errCreateController, "controller", "SecretStore")
os.Exit(1)
}
if enableClusterStoreReconciler {
if err = (&secretstore.ClusterStoreReconciler{
Client: mgr.GetClient(),
Log: ctrl.Log.WithName("controllers").WithName("ClusterSecretStore"),
Scheme: mgr.GetScheme(),
ControllerClass: controllerClass,
RequeueInterval: storeRequeueInterval,
}).SetupWithManager(mgr); err != nil {
setupLog.Error(err, errCreateController, "controller", "ClusterSecretStore")
os.Exit(1)
}
}
if err = (&externalsecret.Reconciler{
Client: mgr.GetClient(),
Log: ctrl.Log.WithName("controllers").WithName("ExternalSecret"),
Scheme: mgr.GetScheme(),
ControllerClass: controllerClass,
RequeueInterval: time.Hour,
ClusterSecretStoreEnabled: enableClusterStoreReconciler,
EnableFloodGate: enableFloodGate,
}).SetupWithManager(mgr, controller.Options{
MaxConcurrentReconciles: concurrent,
}); err != nil {
setupLog.Error(err, errCreateController, "controller", "ExternalSecret")
os.Exit(1)
}
if enableClusterExternalSecretReconciler {
if err = (&clusterexternalsecret.Reconciler{
Client: mgr.GetClient(),
Log: ctrl.Log.WithName("controllers").WithName("ClusterExternalSecret"),
Scheme: mgr.GetScheme(),
RequeueInterval: time.Hour,
}).SetupWithManager(mgr, controller.Options{
MaxConcurrentReconciles: concurrent,
}); err != nil {
setupLog.Error(err, errCreateController, "controller", "ClusterExternalSecret")
os.Exit(1)
}
}
if enableAWSSession {
awsauth.EnableCache = true
}
setupLog.Info("starting manager")
if err := mgr.Start(ctrl.SetupSignalHandler()); err != nil {
setupLog.Error(err, "problem running manager")
os.Exit(1)
}
},
}
func Execute() {
cobra.CheckErr(rootCmd.Execute())
}
func init() {
rootCmd.Flags().StringVar(&metricsAddr, "metrics-addr", ":8080", "The address the metric endpoint binds to.")
rootCmd.Flags().StringVar(&controllerClass, "controller-class", "default", "the controller is instantiated with a specific controller name and filters ES based on this property")
rootCmd.Flags().BoolVar(&enableLeaderElection, "enable-leader-election", false,
"Enable leader election for controller manager. "+
"Enabling this will ensure there is only one active controller manager.")
rootCmd.Flags().IntVar(&concurrent, "concurrent", 1, "The number of concurrent ExternalSecret reconciles.")
rootCmd.Flags().Float32Var(&clientQPS, "client-qps", 0, "QPS configuration to be passed to rest.Client")
rootCmd.Flags().IntVar(&clientBurst, "client-burst", 0, "Maximum Burst allowed to be passed to rest.Client")
rootCmd.Flags().StringVar(&loglevel, "loglevel", "info", "loglevel to use, one of: debug, info, warn, error, dpanic, panic, fatal")
rootCmd.Flags().StringVar(&namespace, "namespace", "", "watch external secrets scoped in the provided namespace only. ClusterSecretStore can be used but only work if it doesn't reference resources from other namespaces")
rootCmd.Flags().BoolVar(&enableClusterStoreReconciler, "enable-cluster-store-reconciler", true, "Enable cluster store reconciler.")
rootCmd.Flags().BoolVar(&enableClusterExternalSecretReconciler, "enable-cluster-external-secret-reconciler", true, "Enable cluster external secret reconciler.")
rootCmd.Flags().BoolVar(&enableSecretsCache, "enable-secrets-caching", false, "Enable secrets caching for external-secrets pod.")
rootCmd.Flags().BoolVar(&enableConfigMapsCache, "enable-configmaps-caching", false, "Enable secrets caching for external-secrets pod.")
rootCmd.Flags().DurationVar(&storeRequeueInterval, "store-requeue-interval", time.Minute*5, "Default Time duration between reconciling (Cluster)SecretStores")
rootCmd.Flags().BoolVar(&enableFloodGate, "enable-flood-gate", true, "Enable flood gate. External secret will be reconciled only if the ClusterStore or Store have an healthy or unknown state.")
rootCmd.Flags().BoolVar(&enableAWSSession, "experimental-enable-aws-session-cache", false, "Enable experimental AWS session cache. External secret will reuse the AWS session without creating a new one on each request.")
}