forked from rook/rook
Patryk Rostkowski
7f3e6bd7fa
This change addresses a permission issue where mon pods crashloop on some Kubernetes setups with SELinux enabled, even when ROOK_HOSTPATH_REQUIRES_PRIVILEGED is set. To resolve this, a new function makeMonSecurityContext() was introduced to explicitly set runAsUser: 0 at the pod level for mon pods when the environment variable ROOK_CEPH_MON_RUN_AS_ROOT is set to true. Additionally, the function previously named PodSecurityContext() was renamed to DefaultContainerSecurityContext() to avoid confusion between container-level and pod-level security context configuration. All container SecurityContext usages across Ceph daemons were updated to reflect this change. This ensures the root user configuration is applied automatically and consistently in environments where it is required for mon pod startup, while preserving clear separation of container and pod-level security logic. Signed-off-by: Patryk Rostkowski <patrostkowski@gmail.com>
142 lines
5.8 KiB
Go
142 lines
5.8 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/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, error) {
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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.CephDaemonAppLabels(AppName, rbdMirror.Namespace, config.RbdMirrorType, daemonConfig.DaemonID, rbdMirror.Name, "cephrbdmirrors.ceph.rook.io", true),
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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, r.cephClusterSpec.DataDirHostPath),
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HostNetwork: r.cephClusterSpec.Network.IsHost(),
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PriorityClassName: rbdMirror.Spec.PriorityClassName,
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SecurityContext: &v1.PodSecurityContext{},
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ServiceAccountName: k8sutil.DefaultServiceAccount,
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},
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}
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// If the log collector is enabled we add the side-car container
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if r.cephClusterSpec.LogCollector.Enabled {
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shareProcessNamespace := true
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podSpec.Spec.ShareProcessNamespace = &shareProcessNamespace
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// The rbd mirror daemon logs to multiple logs, so we need a more generous log rotation filter for files:
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// ceph-client.rbd-mirror.a.log
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// <CLUSTER_FSID>-client.rbd-mirror-peer.log
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logRotationFilter := "*-client.rbd-mirror*"
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podSpec.Spec.Containers = append(podSpec.Spec.Containers, *controller.LogCollectorContainer(logRotationFilter, r.clusterInfo.Namespace, *r.cephClusterSpec, nil))
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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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rbdMirror.Spec.Annotations.ApplyToObjectMeta(&podSpec.ObjectMeta)
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rbdMirror.Spec.Labels.ApplyToObjectMeta(&podSpec.ObjectMeta)
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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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if err := k8sutil.ApplyMultus(r.clusterInfo.Namespace, &r.cephClusterSpec.Network, &podSpec.ObjectMeta); err != nil {
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return nil, err
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}
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}
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rbdMirror.Spec.Placement.ApplyToPodSpec(&podSpec.Spec)
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// nolint:gosec // G115 no overflow expected for rbd mirror count
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replicas := int32(rbdMirror.Spec.Count)
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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.CephDaemonAppLabels(AppName, rbdMirror.Namespace, config.RbdMirrorType, daemonConfig.DaemonID, rbdMirror.Name, "cephrbdmirrors.ceph.rook.io", true),
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},
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Spec: apps.DeploymentSpec{
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RevisionHistoryLimit: controller.RevisionHistoryLimit(),
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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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rbdMirror.Spec.Annotations.ApplyToObjectMeta(&d.ObjectMeta)
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rbdMirror.Spec.Labels.ApplyToObjectMeta(&d.ObjectMeta)
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return d, nil
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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.GetContainerImagePullPolicy(r.cephClusterSpec.CephVersion.ImagePullPolicy),
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controller.DaemonVolumeMounts(daemonConfig.DataPathMap, daemonConfig.ResourceName, r.cephClusterSpec.DataDirHostPath),
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rbdMirror.Spec.Resources,
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controller.DefaultContainerSecurityContext(),
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"",
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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, r.cephClusterSpec, 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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ImagePullPolicy: controller.GetContainerImagePullPolicy(r.cephClusterSpec.CephVersion.ImagePullPolicy),
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VolumeMounts: controller.DaemonVolumeMounts(daemonConfig.DataPathMap, daemonConfig.ResourceName, r.cephClusterSpec.DataDirHostPath),
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Env: controller.DaemonEnvVars(r.cephClusterSpec),
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Resources: rbdMirror.Spec.Resources,
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SecurityContext: controller.DefaultContainerSecurityContext(),
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WorkingDir: config.VarLogCephDir,
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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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