Initial v1.0.0 commit

2026-07-03 11:41:35 +02:00 · 2021-01-28 17:37:47 +01:00
commit 1481d27782
4164 changed files with 1264675 additions and 0 deletions
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+// Copyright (c) 2019 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file
+//
+// 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 app
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/javamachr/gardener-extension-shoot-fleet-agent/pkg/controller"
+	"github.com/javamachr/gardener-extension-shoot-fleet-agent/pkg/controller/healthcheck"
+
+	extensionscontroller "github.com/gardener/gardener/extensions/pkg/controller"
+	"github.com/gardener/gardener/extensions/pkg/util"
+
+	"github.com/spf13/cobra"
+	corev1 "k8s.io/api/core/v1"
+	componentbaseconfig "k8s.io/component-base/config"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+	"sigs.k8s.io/controller-runtime/pkg/manager"
+)
+
+// NewServiceControllerCommand creates a new command that is used to start the Fleet Service controller.
+func NewServiceControllerCommand() *cobra.Command {
+	options := NewOptions()
+
+	cmd := &cobra.Command{
+		Use:           "shoot-fleet-agent-controller-manager",
+		Short:         "Shoot Fleet Service Controller manages components which register Cluster in Fleet.",
+		SilenceErrors: true,
+
+		RunE: func(cmd *cobra.Command, args []string) error {
+			if err := options.optionAggregator.Complete(); err != nil {
+				return fmt.Errorf("error completing options: %s", err)
+			}
+			cmd.SilenceUsage = true
+			return options.run(cmd.Context())
+		},
+	}
+
+	options.optionAggregator.AddFlags(cmd.Flags())
+
+	return cmd
+}
+
+func (o *Options) run(ctx context.Context) error {
+	// TODO: Make these flags configurable via command line parameters or component config file.
+	util.ApplyClientConnectionConfigurationToRESTConfig(&componentbaseconfig.ClientConnectionConfiguration{
+		QPS:   100.0,
+		Burst: 130,
+	}, o.restOptions.Completed().Config)
+
+	mgrOpts := o.managerOptions.Completed().Options()
+
+	mgrOpts.ClientDisableCacheFor = []client.Object{
+		&corev1.Secret{},    // applied for ManagedResources
+		&corev1.ConfigMap{}, // applied for monitoring config
+	}
+
+	mgr, err := manager.New(o.restOptions.Completed().Config, mgrOpts)
+	if err != nil {
+		return fmt.Errorf("could not instantiate controller-manager: %s", err)
+	}
+
+	if err := extensionscontroller.AddToScheme(mgr.GetScheme()); err != nil {
+		return fmt.Errorf("could not update manager scheme: %s", err)
+	}
+
+	ctrlConfig := o.fleetOptions.Completed()
+	ctrlConfig.Apply(&controller.DefaultAddOptions.ServiceConfig)
+	o.controllerOptions.Completed().Apply(&controller.DefaultAddOptions.ControllerOptions)
+	o.healthOptions.Completed().Apply(&healthcheck.DefaultAddOptions.Controller)
+	o.reconcileOptions.Completed().Apply(&controller.DefaultAddOptions.IgnoreOperationAnnotation)
+
+	if err := o.controllerSwitches.Completed().AddToManager(mgr); err != nil {
+		return fmt.Errorf("could not add controllers to manager: %s", err)
+	}
+
+	if err := mgr.Start(ctx); err != nil {
+		return fmt.Errorf("error running manager: %s", err)
+	}
+
+	return nil
+}
@@ -0,0 +1,74 @@
+// Copyright (c) 2019 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file
+//
+// 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 app
+
+import (
+	"os"
+
+	fleetagentservicecmd "github.com/javamachr/gardener-extension-shoot-fleet-agent/pkg/cmd"
+
+	controllercmd "github.com/gardener/gardener/extensions/pkg/controller/cmd"
+)
+
+// ExtensionName is the name of the extension.
+const ExtensionName = "extension-shoot-fleet-agent"
+
+// Options holds configuration passed to the Fleet Service controller.
+type Options struct {
+	fleetOptions       *fleetagentservicecmd.FleetServiceOptions
+	restOptions        *controllercmd.RESTOptions
+	managerOptions     *controllercmd.ManagerOptions
+	controllerOptions  *controllercmd.ControllerOptions
+	healthOptions      *controllercmd.ControllerOptions
+	controllerSwitches *controllercmd.SwitchOptions
+	reconcileOptions   *controllercmd.ReconcilerOptions
+	optionAggregator   controllercmd.OptionAggregator
+}
+
+// NewOptions creates a new Options instance.
+func NewOptions() *Options {
+	options := &Options{
+		fleetOptions: &fleetagentservicecmd.FleetServiceOptions{},
+		restOptions:  &controllercmd.RESTOptions{},
+		managerOptions: &controllercmd.ManagerOptions{
+			// These are default values.
+			LeaderElection:          true,
+			LeaderElectionID:        controllercmd.LeaderElectionNameID(ExtensionName),
+			LeaderElectionNamespace: os.Getenv("LEADER_ELECTION_NAMESPACE"),
+		},
+		controllerOptions: &controllercmd.ControllerOptions{
+			// This is a default value.
+			MaxConcurrentReconciles: 5,
+		},
+		healthOptions: &controllercmd.ControllerOptions{
+			// This is a default value.
+			MaxConcurrentReconciles: 5,
+		},
+		controllerSwitches: fleetagentservicecmd.ControllerSwitches(),
+		reconcileOptions:   &controllercmd.ReconcilerOptions{},
+	}
+
+	options.optionAggregator = controllercmd.NewOptionAggregator(
+		options.restOptions,
+		options.managerOptions,
+		options.controllerOptions,
+		options.fleetOptions,
+		controllercmd.PrefixOption("healthcheck-", options.healthOptions),
+		options.controllerSwitches,
+		options.reconcileOptions,
+	)
+
+	return options
+}
@@ -0,0 +1,33 @@
+// Copyright (c) 2019 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file
+//
+// 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 main
+
+import (
+	"github.com/javamachr/gardener-extension-shoot-fleet-agent/cmd/gardener-extension-shoot-fleet-agent/app"
+
+	controllercmd "github.com/gardener/gardener/extensions/pkg/controller/cmd"
+	"github.com/gardener/gardener/extensions/pkg/log"
+	runtimelog "sigs.k8s.io/controller-runtime/pkg/log"
+	"sigs.k8s.io/controller-runtime/pkg/manager/signals"
+)
+
+func main() {
+	runtimelog.SetLogger(log.ZapLogger(false))
+
+	ctx := signals.SetupSignalHandler()
+	if err := app.NewServiceControllerCommand().ExecuteContext(ctx); err != nil {
+		controllercmd.LogErrAndExit(err, "error executing the main controller command")
+	}
+}