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starter.go
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starter.go
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package operator
import (
"bytes"
"context"
"os"
"time"
"github.com/openshift/library-go/pkg/operator/v1helpers"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"github.com/openshift/aws-efs-csi-driver-operator/assets"
"github.com/openshift/aws-efs-csi-driver-operator/pkg/operator/staticresource"
"github.com/openshift/library-go/pkg/controller/factory"
"github.com/openshift/library-go/pkg/operator/csi/csidrivercontrollerservicecontroller"
"github.com/openshift/library-go/pkg/operator/csi/csidrivernodeservicecontroller"
"github.com/openshift/library-go/pkg/operator/resource/resourceapply"
"github.com/openshift/library-go/pkg/operator/resource/resourceread"
"k8s.io/client-go/dynamic"
kubeclient "k8s.io/client-go/kubernetes"
"k8s.io/client-go/rest"
"k8s.io/klog/v2"
opv1 "github.com/openshift/api/operator/v1"
configclient "github.com/openshift/client-go/config/clientset/versioned"
configinformers "github.com/openshift/client-go/config/informers/externalversions"
operatorv1client "github.com/openshift/client-go/operator/clientset/versioned"
operatorinformer "github.com/openshift/client-go/operator/informers/externalversions"
"github.com/openshift/library-go/pkg/controller/controllercmd"
"github.com/openshift/library-go/pkg/operator/csi/csicontrollerset"
goc "github.com/openshift/library-go/pkg/operator/genericoperatorclient"
)
const (
// Operand and operator run in the same namespace
operatorName = "aws-efs-csi-driver-operator"
trustedCAConfigMap = "aws-efs-csi-driver-trusted-ca-bundle"
namespaceReplaceKey = "${NAMESPACE}"
stsIAMRoleARNEnvVar = "ROLEARN"
cloudTokenPath = "/var/run/secrets/openshift/serviceaccount/token"
// From credentials.yaml
cloudCredSecretName = "aws-efs-cloud-credentials"
// From controller.yaml
metricsCertSecretName = "aws-efs-csi-driver-controller-metrics-serving-cert"
)
func RunOperator(ctx context.Context, controllerConfig *controllercmd.ControllerContext) error {
operatorNamespace := controllerConfig.OperatorNamespace
// Create core clientset and informer
kubeClient := kubeclient.NewForConfigOrDie(rest.AddUserAgent(controllerConfig.KubeConfig, operatorName))
kubeInformersForNamespaces := v1helpers.NewKubeInformersForNamespaces(kubeClient, operatorNamespace, "")
secretInformer := kubeInformersForNamespaces.InformersFor(operatorNamespace).Core().V1().Secrets()
nodeInformer := kubeInformersForNamespaces.InformersFor("").Core().V1().Nodes()
configMapInformer := kubeInformersForNamespaces.InformersFor(operatorNamespace).Core().V1().ConfigMaps()
typedVersionedClient := operatorv1client.NewForConfigOrDie(controllerConfig.KubeConfig)
operatorInformer := operatorinformer.NewSharedInformerFactory(typedVersionedClient, 20*time.Minute)
// Create config clientset and informer. This is used to get the cluster ID
configClient := configclient.NewForConfigOrDie(rest.AddUserAgent(controllerConfig.KubeConfig, operatorName))
configInformers := configinformers.NewSharedInformerFactory(configClient, 20*time.Minute)
infraInformer := configInformers.Config().V1().Infrastructures()
// Create GenericOperatorclient. This is used by the library-go controllers created down below
gvr := opv1.SchemeGroupVersion.WithResource("clustercsidrivers")
operatorClient, dynamicInformers, err := goc.NewClusterScopedOperatorClientWithConfigName(controllerConfig.KubeConfig, gvr, string(opv1.AWSEFSCSIDriver))
if err != nil {
return err
}
// Dynamic client for CredentialsRequest
dynamicClient, err := dynamic.NewForConfig(controllerConfig.KubeConfig)
if err != nil {
return err
}
cs := csicontrollerset.NewCSIControllerSet(
operatorClient,
controllerConfig.EventRecorder,
).WithManagementStateController(
operatorName,
true,
).WithLogLevelController().WithCSIConfigObserverController(
"AWSEFSDriverCSIConfigObserverController",
configInformers,
).WithCSIDriverNodeService(
"AWSEFSDriverNodeServiceController",
replaceNamespaceFunc(operatorNamespace),
"node.yaml",
kubeClient,
kubeInformersForNamespaces.InformersFor(operatorNamespace),
nil,
csidrivernodeservicecontroller.WithCABundleDaemonSetHook(
operatorNamespace,
trustedCAConfigMap,
configMapInformer,
)).WithCSIDriverControllerService(
"AWSEFSDriverControllerServiceController",
replaceNamespaceFunc(operatorNamespace),
"controller.yaml",
kubeClient,
kubeInformersForNamespaces.InformersFor(operatorNamespace),
configInformers,
[]factory.Informer{
secretInformer.Informer(),
nodeInformer.Informer(),
infraInformer.Informer(),
},
csidrivercontrollerservicecontroller.WithCABundleDeploymentHook(
operatorNamespace,
trustedCAConfigMap,
configMapInformer,
),
csidrivercontrollerservicecontroller.WithSecretHashAnnotationHook(operatorNamespace, cloudCredSecretName, secretInformer),
csidrivercontrollerservicecontroller.WithSecretHashAnnotationHook(operatorNamespace, metricsCertSecretName, secretInformer),
csidrivercontrollerservicecontroller.WithObservedProxyDeploymentHook(),
csidrivercontrollerservicecontroller.WithReplicasHook(nodeInformer.Lister()),
).WithCredentialsRequestController(
"AWSEFSDriverCredentialsRequestController",
operatorNamespace,
replaceNamespaceFunc(operatorNamespace),
"credentials.yaml",
dynamicClient,
operatorInformer,
stsCredentialsRequestHook,
).WithServiceMonitorController(
"AWSEFSDriverServiceMonitorController",
dynamicClient,
replaceNamespaceFunc(operatorNamespace),
"servicemonitor.yaml",
)
objsToSync := staticresource.SyncObjects{
CSIDriver: resourceread.ReadCSIDriverV1OrDie(mustReplaceNamespace(operatorNamespace, "csidriver.yaml")),
PrivilegedRole: resourceread.ReadClusterRoleV1OrDie(mustReplaceNamespace(operatorNamespace, "rbac/privileged_role.yaml")),
NodeServiceAccount: resourceread.ReadServiceAccountV1OrDie(mustReplaceNamespace(operatorNamespace, "node_sa.yaml")),
NodeRoleBinding: resourceread.ReadClusterRoleBindingV1OrDie(mustReplaceNamespace(operatorNamespace, "rbac/node_privileged_binding.yaml")),
ControllerServiceAccount: resourceread.ReadServiceAccountV1OrDie(mustReplaceNamespace(operatorNamespace, "controller_sa.yaml")),
ControllerRoleBinding: resourceread.ReadClusterRoleBindingV1OrDie(mustReplaceNamespace(operatorNamespace, "rbac/controller_privileged_binding.yaml")),
ProvisionerRoleBinding: resourceread.ReadClusterRoleBindingV1OrDie(mustReplaceNamespace(operatorNamespace, "rbac/main_provisioner_binding.yaml")),
PrometheusRole: resourceread.ReadRoleV1OrDie(mustReplaceNamespace(operatorNamespace, "rbac/prometheus_role.yaml")),
PrometheusRoleBinding: resourceread.ReadRoleBindingV1OrDie(mustReplaceNamespace(operatorNamespace, "rbac/prometheus_rolebinding.yaml")),
LeaseLeaderElectionRole: resourceread.ReadRoleV1OrDie(mustReplaceNamespace(operatorNamespace, "rbac/lease_leader_election_role.yaml")),
LeaseLeaderElectionRoleBinding: resourceread.ReadRoleBindingV1OrDie(mustReplaceNamespace(operatorNamespace, "rbac/lease_leader_election_rolebinding.yaml")),
MetricsService: resourceread.ReadServiceV1OrDie(mustReplaceNamespace(operatorNamespace, "service.yaml")),
RBACProxyRole: resourceread.ReadClusterRoleV1OrDie(mustReplaceNamespace(operatorNamespace, "rbac/kube_rbac_proxy_role.yaml")),
RBACProxyRoleBinding: resourceread.ReadClusterRoleBindingV1OrDie(mustReplaceNamespace(operatorNamespace, "rbac/kube_rbac_proxy_binding.yaml")),
CAConfigMap: resourceread.ReadConfigMapV1OrDie(mustReplaceNamespace(operatorNamespace, "cabundle_cm.yaml")),
}
staticController := staticresource.NewCSIStaticResourceController(
"CSIStaticResourceController",
operatorNamespace,
operatorClient,
kubeClient,
kubeInformersForNamespaces,
controllerConfig.EventRecorder,
objsToSync,
)
klog.Info("Starting the informers")
go kubeInformersForNamespaces.Start(ctx.Done())
go dynamicInformers.Start(ctx.Done())
go configInformers.Start(ctx.Done())
go operatorInformer.Start(ctx.Done())
klog.Info("Starting controllerset")
go cs.Run(ctx, 1)
go staticController.Run(ctx, 1)
<-ctx.Done()
return nil
}
func mustReplaceNamespace(namespace, file string) []byte {
content, err := assets.ReadFile(file)
if err != nil {
panic(err)
}
return bytes.Replace(content, []byte(namespaceReplaceKey), []byte(namespace), -1)
}
func replaceNamespaceFunc(namespace string) resourceapply.AssetFunc {
return func(name string) ([]byte, error) {
content, err := assets.ReadFile(name)
if err != nil {
panic(err)
}
return bytes.Replace(content, []byte(namespaceReplaceKey), []byte(namespace), -1), nil
}
}
func stsCredentialsRequestHook(spec *opv1.OperatorSpec, cr *unstructured.Unstructured) error {
stsRoleARN := os.Getenv(stsIAMRoleARNEnvVar)
if stsRoleARN == "" {
// Not in STS mode
return nil
}
klog.V(4).Infof("Using ARN %s and token path %s", stsRoleARN, cloudTokenPath)
if err := unstructured.SetNestedField(cr.Object, cloudTokenPath, "spec", "cloudTokenPath"); err != nil {
return err
}
if err := unstructured.SetNestedField(cr.Object, stsRoleARN, "spec", "providerSpec", "stsIAMRoleARN"); err != nil {
return err
}
return nil
}