forked from rook/rook
Sébastien Han
b89730d895
This commit is a large refactor on how the operator starts, stops and how it starts various sub-components such as the ceph-csi driver. It also refines the way we cancel orchestrations. We don't use breakpoints anymore but send our self a SIGUP to reload our controller runtime manager. The reload will happen under different circonstances like: * a new adminission controller secret is created/deleted/changed * a CephCluster CR is edited As mentioned earlier, the csi driver now has its own controller, just like flex. It reacts to change in the operator config map for particular ROOK_CSI_ fields. A second new controller for the operator's general config has been created, it manages: * the logging level * the ceph CLI command timeout * the discovery daemon The operator reacts much more rapidly to cancellation events by stopping the manager's context and reloading it. Signed-off-by: Sébastien Han <seb@redhat.com>
76 lines
2.6 KiB
Go
76 lines
2.6 KiB
Go
/*
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Copyright 2021 The Rook Authors. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package bucket
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import (
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cephv1 "github.com/rook/rook/pkg/apis/ceph.rook.io/v1"
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"github.com/rook/rook/pkg/operator/ceph/controller"
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v1 "k8s.io/api/core/v1"
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"sigs.k8s.io/controller-runtime/pkg/event"
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"sigs.k8s.io/controller-runtime/pkg/predicate"
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)
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const rookOBCWatchOperatorNamespace = "ROOK_OBC_WATCH_OPERATOR_NAMESPACE"
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// predicateController is the predicate function to trigger reconcile on operator configuration cm change
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func predicateController() predicate.Funcs {
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return predicate.Funcs{
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CreateFunc: func(e event.CreateEvent) bool {
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// if the operator configuration file is created we want to reconcile
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if cm, ok := e.Object.(*v1.ConfigMap); ok {
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// It's probably fine to use the Generation value here. The case where the operator was stopped and the
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// ConfigMap was created is low since the cm is always present these days
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return cm.Name == controller.OperatorSettingConfigMapName && cm.Generation == 1
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}
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// If a Ceph Cluster is created we want to reconcile the bucket provisioner
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if _, ok := e.Object.(*cephv1.CephCluster); ok {
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// Always return true, so when the controller starts we reconcile too. We don't get
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return true
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}
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return false
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},
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UpdateFunc: func(e event.UpdateEvent) bool {
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if old, ok := e.ObjectOld.(*v1.ConfigMap); ok {
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if new, ok := e.ObjectNew.(*v1.ConfigMap); ok {
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if old.Name == controller.OperatorSettingConfigMapName && new.Name == controller.OperatorSettingConfigMapName {
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if old.Data[rookOBCWatchOperatorNamespace] != new.Data[rookOBCWatchOperatorNamespace] {
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logger.Infof("%s changed. reconciling bucket controller", rookOBCWatchOperatorNamespace)
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// We reload the manager so that the controller restarts and goes
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// through the CreateFunc again. Then the CephCluster watcher will be triggered
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controller.ReloadManager()
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}
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}
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}
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}
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return false
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},
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DeleteFunc: func(e event.DeleteEvent) bool {
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return false
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},
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GenericFunc: func(e event.GenericEvent) bool {
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return false
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},
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}
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}
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