Artem Torubarov
a0d215b428
A state machine for osd destroy phase of osd-replacement flow. The state machine is implemented in OSD health goroutine, where each step is handled on a separate tick. State machine is responsible for draining, destroying OSD, and reserving its CRUSH position, downscalling its deployment, and adding "readyForSwap" annotation. Destroy phase does not zap the device on purpose. On disk signature is kept to avoid automatic reprovisioning of destroyed OSD and to detect physical swap. Signed-off-by: Artem Torubarov <artem.torubarov@sap.com>
105 lines
3.8 KiB
Go
105 lines
3.8 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 cluster to manage a Ceph cluster.
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package cluster
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import (
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"context"
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cephv1 "github.com/rook/rook/pkg/apis/ceph.rook.io/v1"
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cephclient "github.com/rook/rook/pkg/daemon/ceph/client"
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"github.com/rook/rook/pkg/operator/ceph/cluster/mon"
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"github.com/rook/rook/pkg/operator/ceph/cluster/osd"
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opcontroller "github.com/rook/rook/pkg/operator/ceph/controller"
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"github.com/rook/rook/pkg/util/log"
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)
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var monitorDaemonList = []string{"mon", "osd", "status"}
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func (c *ClusterController) configureCephMonitoring(cluster *cluster, clusterInfo *cephclient.ClusterInfo) {
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var isEnabled bool
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for _, daemon := range monitorDaemonList {
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// Is the monitoring enabled for that daemon?
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isEnabled = isMonitoringEnabled(daemon, cluster.Spec)
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if health, ok := cluster.monitoringRoutines.Load(daemon); ok {
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// If the context Err() is nil this means it hasn't been cancelled yet
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if health.(*opcontroller.ClusterHealth).InternalCtx.Err() == nil {
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log.NamespacedDebug(cluster.Namespace, logger, "monitoring routine for %q is already running", daemon)
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if !isEnabled {
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health.(*opcontroller.ClusterHealth).InternalCancel()
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}
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}
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} else {
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if isEnabled {
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// Instantiate the monitoring goroutine context from the parent context
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// They can individually be cancelled and will be cancelled when the parent context is cancelled
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internalCtx, internalCancel := context.WithCancel(c.OpManagerCtx)
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cluster.monitoringRoutines.Store(daemon, &opcontroller.ClusterHealth{
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InternalCtx: internalCtx,
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InternalCancel: internalCancel,
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})
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// We can't use mon.IsFloatingMon(cluster.mons, daemon) because the mon ID is not available.
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if daemon == "mon" && cluster.Spec.Mon.FloatingMon.Name != "" {
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log.NamespacedInfo(cluster.Namespace, logger, "skip mon health check since floating mon %q is configured", daemon)
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continue
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}
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// Run the go routine
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c.startMonitoringCheck(cluster, clusterInfo, daemon)
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}
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}
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}
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}
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func isMonitoringEnabled(daemon string, clusterSpec *cephv1.ClusterSpec) bool {
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switch daemon {
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case "mon":
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return !clusterSpec.HealthCheck.DaemonHealth.Monitor.Disabled
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case "osd":
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return !clusterSpec.HealthCheck.DaemonHealth.ObjectStorageDaemon.Disabled
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case "status":
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return !clusterSpec.HealthCheck.DaemonHealth.Status.Disabled
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}
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return false
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}
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func (c *ClusterController) startMonitoringCheck(cluster *cluster, clusterInfo *cephclient.ClusterInfo, daemon string) {
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switch daemon {
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case "mon":
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healthChecker := mon.NewHealthChecker(cluster.mons)
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log.NamespacedInfo(cluster.Namespace, logger, "enabling ceph %s monitoring goroutine", daemon)
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go healthChecker.Check(&cluster.monitoringRoutines, daemon)
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case "osd":
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if !cluster.Spec.External.Enable {
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osdChecker := osd.NewOSDHealthMonitor(c.context, clusterInfo, cluster.Spec.RemoveOSDsIfOutAndSafeToRemove, cluster.Spec.HealthCheck, *cluster.Spec, c.rookImage)
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log.NamespacedInfo(cluster.Namespace, logger, "enabling ceph %s monitoring goroutine", daemon)
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go osdChecker.Start(&cluster.monitoringRoutines, daemon)
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}
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case "status":
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cephChecker := newCephStatusChecker(c.context, clusterInfo, cluster.Spec)
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log.NamespacedInfo(cluster.Namespace, logger, "enabling ceph %s monitoring goroutine", daemon)
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go cephChecker.checkCephStatus(&cluster.monitoringRoutines, daemon)
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}
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}
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