Sébastien Han
c1b8a7aa9e
Previously, the rbd-mirror daemon was integrated into the `CephCluster` CRD. This wasn't really practical since we would have to wait for the whole orchestration to be done to actually set it up. The same goes for any CR update. Let's say you want to change the number of daemons, Rook would go through mons, mgrs and osds until it get to rbd-mirror. This triggers an undesired full orchestration. With its own CRD this component just gains a lot more flexibility. Closes: https://github.com/rook/rook/issues/5084 Signed-off-by: Sébastien Han <seb@redhat.com>
115 lines
4.2 KiB
Go
115 lines
4.2 KiB
Go
/*
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Copyright 2016 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 rbd
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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/cluster/mon"
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"github.com/rook/rook/pkg/operator/ceph/config"
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"github.com/rook/rook/pkg/operator/ceph/controller"
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"github.com/rook/rook/pkg/operator/k8sutil"
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apps "k8s.io/api/apps/v1"
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v1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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)
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func (r *ReconcileCephRBDMirror) makeDeployment(daemonConfig *daemonConfig, rbdMirror *cephv1.CephRBDMirror) *apps.Deployment {
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podSpec := v1.PodTemplateSpec{
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ObjectMeta: metav1.ObjectMeta{
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Name: daemonConfig.ResourceName,
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Labels: controller.PodLabels(AppName, rbdMirror.Namespace, config.RbdMirrorType, daemonConfig.DaemonID),
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},
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Spec: v1.PodSpec{
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InitContainers: []v1.Container{
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r.makeChownInitContainer(daemonConfig, rbdMirror),
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},
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Containers: []v1.Container{
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r.makeMirroringDaemonContainer(daemonConfig, rbdMirror),
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},
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RestartPolicy: v1.RestartPolicyAlways,
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Volumes: controller.DaemonVolumes(daemonConfig.DataPathMap, daemonConfig.ResourceName),
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HostNetwork: r.cephClusterSpec.Network.IsHost(),
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PriorityClassName: rbdMirror.Spec.PriorityClassName,
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},
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}
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// Replace default unreachable node toleration
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k8sutil.AddUnreachableNodeToleration(&podSpec.Spec)
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if r.cephClusterSpec.Network.IsHost() {
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podSpec.Spec.DNSPolicy = v1.DNSClusterFirstWithHostNet
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} else if r.cephClusterSpec.Network.IsMultus() {
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k8sutil.ApplyMultus(r.cephClusterSpec.Network.NetworkSpec, &podSpec.ObjectMeta)
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}
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rbdMirror.Spec.Placement.ApplyToPodSpec(&podSpec.Spec)
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replicas := int32(1)
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d := &apps.Deployment{
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ObjectMeta: metav1.ObjectMeta{
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Name: daemonConfig.ResourceName,
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Namespace: rbdMirror.Namespace,
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Annotations: rbdMirror.Spec.Annotations,
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Labels: controller.PodLabels(AppName, rbdMirror.Namespace, config.RbdMirrorType, daemonConfig.DaemonID),
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},
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Spec: apps.DeploymentSpec{
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Selector: &metav1.LabelSelector{
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MatchLabels: podSpec.Labels,
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},
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Template: podSpec,
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Replicas: &replicas,
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},
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}
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k8sutil.AddRookVersionLabelToDeployment(d)
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controller.AddCephVersionLabelToDeployment(r.clusterInfo.CephVersion, d)
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return d
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}
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func (r *ReconcileCephRBDMirror) makeChownInitContainer(daemonConfig *daemonConfig, rbdMirror *cephv1.CephRBDMirror) v1.Container {
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return controller.ChownCephDataDirsInitContainer(
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*daemonConfig.DataPathMap,
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r.cephClusterSpec.CephVersion.Image,
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controller.DaemonVolumeMounts(daemonConfig.DataPathMap, daemonConfig.ResourceName),
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rbdMirror.Spec.Resources,
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mon.PodSecurityContext(),
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)
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}
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func (r *ReconcileCephRBDMirror) makeMirroringDaemonContainer(daemonConfig *daemonConfig, rbdMirror *cephv1.CephRBDMirror) v1.Container {
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container := v1.Container{
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Name: "rbd-mirror",
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Command: []string{
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"rbd-mirror",
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},
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Args: append(
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controller.DaemonFlags(r.clusterInfo, daemonConfig.DaemonID),
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"--foreground",
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"--name="+fullDaemonName(daemonConfig.DaemonID),
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),
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Image: r.cephClusterSpec.CephVersion.Image,
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VolumeMounts: controller.DaemonVolumeMounts(daemonConfig.DataPathMap, daemonConfig.ResourceName),
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Env: controller.DaemonEnvVars(r.cephClusterSpec.CephVersion.Image),
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Resources: rbdMirror.Spec.Resources,
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SecurityContext: mon.PodSecurityContext(),
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// TODO:
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// Not implemented at this point since the socket name is '/run/ceph/ceph-client.rbd-mirror.a.1.94362516231272.asok'
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// Also the command to run will be:
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// ceph --admin-daemon /run/ceph/ceph-client.rbd-mirror.a.1.94362516231272.asok rbd mirror status
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// LivenessProbe: controller.GenerateLivenessProbeExecDaemon(config.RbdMirrorType, daemonConfig.DaemonID),
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}
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return container
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}
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