forked from rook/rook
Travis Nielsen
8d72e788c1
The name of a CephCluster is commonly the same as the namespace, but not always. When looking up the ceph cluster we can look for the first one in the namespace rather than requiring the name to be the same as the namespace. Signed-off-by: Travis Nielsen <tnielsen@redhat.com>
89 lines
4.0 KiB
Go
89 lines
4.0 KiB
Go
/*
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Copyright 2020 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 controller
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import (
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"context"
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"strings"
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"time"
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cephv1 "github.com/rook/rook/pkg/apis/ceph.rook.io/v1"
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"github.com/rook/rook/pkg/clusterd"
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cephclient "github.com/rook/rook/pkg/daemon/ceph/client"
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"k8s.io/apimachinery/pkg/types"
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"sigs.k8s.io/controller-runtime/pkg/client"
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"sigs.k8s.io/controller-runtime/pkg/reconcile"
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)
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// OperatorSettingConfigMapName refers to ConfigMap that configures rook ceph operator
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const OperatorSettingConfigMapName string = "rook-ceph-operator-config"
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var (
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// ImmediateRetryResult Return this for a immediate retry of the reconciliation loop with the same request object.
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ImmediateRetryResult = reconcile.Result{Requeue: true}
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// WaitForRequeueIfCephClusterNotReadyAfter requeue after 10sec if the operator is not ready
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WaitForRequeueIfCephClusterNotReadyAfter = 10 * time.Second
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// WaitForRequeueIfCephClusterNotReady waits for the CephCluster to be ready
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WaitForRequeueIfCephClusterNotReady = reconcile.Result{Requeue: true, RequeueAfter: WaitForRequeueIfCephClusterNotReadyAfter}
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)
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// IsReadyToReconcile determines if a controller is ready to reconcile or not
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func IsReadyToReconcile(c client.Client, clustercontext *clusterd.Context, namespacedName types.NamespacedName, controllerName string) (cephv1.ClusterSpec, bool, bool, reconcile.Result) {
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cephClusterExists := false
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// Running ceph commands won't work and the controller will keep re-queuing so I believe it's fine not to check
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// Make sure a CephCluster exists before doing anything
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var cephCluster cephv1.CephCluster
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clusterList := &cephv1.CephClusterList{}
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err := c.List(context.TODO(), clusterList, client.InNamespace(namespacedName.Namespace))
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if err != nil {
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logger.Errorf("%q:failed to fetch CephCluster %v", controllerName, err)
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return cephv1.ClusterSpec{}, false, cephClusterExists, ImmediateRetryResult
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}
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if len(clusterList.Items) == 0 {
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logger.Errorf("%q: no CephCluster resource found in namespace %q", controllerName, namespacedName.Namespace)
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return cephv1.ClusterSpec{}, false, cephClusterExists, WaitForRequeueIfCephClusterNotReady
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}
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cephClusterExists = true
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cephCluster = clusterList.Items[0]
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logger.Debugf("%q: CephCluster resource %q found in namespace %q", controllerName, cephCluster.Name, namespacedName.Namespace)
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// If the cluster is healthy
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// Test a Ceph command to verify the Operator is ready
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// This is done to silence errors when the operator just started and cannot reconcile yet
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status, err := cephclient.Status(clustercontext, namespacedName.Namespace)
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if err != nil {
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if strings.Contains(err.Error(), "error calling conf_read_file") {
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logger.Infof("%q: operator is not ready to run ceph command, cannot reconcile yet.", controllerName)
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return cephCluster.Spec, false, cephClusterExists, WaitForRequeueIfCephClusterNotReady
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}
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// We should not arrive there
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logger.Errorf("%q: ceph command error %v", controllerName, err)
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return cephCluster.Spec, false, cephClusterExists, ImmediateRetryResult
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}
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// If Ceph status is ok we can reconcile
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if status.Health.Status == "HEALTH_OK" || status.Health.Status == "HEALTH_WARN" {
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logger.Debugf("%q: ceph status is %q, operator is ready to run ceph command, reconciling", controllerName, status.Health.Status)
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return cephCluster.Spec, true, cephClusterExists, reconcile.Result{}
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}
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logger.Infof("%s: CephCluster %q found but skipping reconcile since Ceph health is %q", controllerName, cephCluster.Name, status.Health.Status)
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return cephCluster.Spec, false, cephClusterExists, WaitForRequeueIfCephClusterNotReady
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}
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