我在 K8S 上将 Jenkins 服务部署为 StatefulSet。
我的VolumeMounts样子：
volumeMounts:
- name: jenkins-jobs
mountPath: /srv/jenkins/jobs
我volumeClaimTemplates在 StatefulSet 声明中的部分如下所示：
volumeClaimTemplates:
- metadata:
name: jenkins-jobs
spec:
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 5G
storageClassName: rbd
我已经定义了一个存储类rbd，它的控制器正在我的集群中运行：
$ kubectl get -n kube-system po | grep rbd
rbd-provisioner-59d8759b85-rzrxr 1/1 Running 0 42m
现在，当我启动我的 Stateful Set 时，pod 保持在以下状态：
$ kubectl get po -n test-jenkins
NAME READY STATUS RESTARTS AGE
jenkins-master-0 0/1 ContainerCreating 0 23m
对 Pod 进行描述会产生：
Normal SuccessfulMountVolume 2m kubelet, kubernetes-agent-3 MountVolume.SetUp succeeded for volume "default-token-zcdgk"
Normal SuccessfulMountVolume 2m kubelet, kubernetes-agent-3 MountVolume.SetUp succeeded for volume "local-secrets"
Normal SuccessfulAttachVolume 37s attachdetach-controller AttachVolume.Attach succeeded for volume "pvc-2bafc440-d259-11e8-953e-02000a1bef39"
Warning FailedMount 11s kubelet, kubernetes-agent-3 Unable to mount volumes for pod "jenkins-master-0_test-jenkins(2bb0d344-d259-11e8-953e-02000a1bef39)": timeout expired waiting for volumes to attach or mount for pod "test-jenkins"/"jenkins-master-0". list of unmounted volumes=[jenkins-jobs]. list of unattached volumes=[jenkins-jobs local-secrets ssh static-jobs update-credentials seed-job renew-token default-token-zcdgk]
Warning FailedMount 2s (x4 over 6s) kubelet, kubernetes-agent-3 MountVolume.WaitForAttach failed for volume "pvc-2bafc440-d259-11e8-953e-02000a1bef39" : fail to check rbd image status with: (executable file not found in $PATH), rbd output: ()
我的 PVC 已创建，我的 PV 也已创建。
$ kubectl get pvc -n test-jenkins
NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE
jenkins-jobs-jenkins-master-0 Bound pvc-2bafc440-d259-11e8-953e-02000a1bef39 4769Mi RWO rbd 25m
$ kubectl get pv
NAME CAPACITY ACCESS MODES RECLAIM POLICY STATUS CLAIM STORAGECLASS REASON AGE
pvc-2bafc440-d259-11e8-953e-02000a1bef39 4769Mi RWO Delete Bound test-jenkins/jenkins-jobs-jenkins-master-0 rbd 26m
我的 RBD 容器的日志也没有显示错误：
I1017 22:08:26.169064 1 controller.go:1068] scheduleOperation[lock-provisiontest-jenkins/jenkins-jobs-jenkins-master-0[2bafc440-d259-11e8-953e-02000a1bef39]]
I1017 22:08:26.186851 1 controller.go:1068] scheduleOperation[lock-provision-test-jenkins/jenkins-jobs-jenkins-master-0[2bafc440-d259-11e8-953e-02000a1bef39]]
I1017 22:08:26.206088 1 controller.go:1068] scheduleOperation[lock-provision-test-jenkins/jenkins-jobs-jenkins-master-0[2bafc440-d259-11e8-953e-02000a1bef39]]
I1017 22:08:26.216657 1 leaderelection.go:156] attempting to acquire leader lease...
I1017 22:08:26.232794 1 leaderelection.go:178] successfully acquired lease to provision for pvc test-jenkins/jenkins-jobs-jenkins-master-0
I1017 22:08:26.232868 1 controller.go:1068] scheduleOperation[provision-test-jenkins/jenkins-jobs-jenkins-master-0[2bafc440-d259-11e8-953e-02000a1bef39]]
I1017 22:08:26.326907 1 provision.go:110] successfully created rbd image "kubernetes-dynamic-pvc-2bbe12a1-d259-11e8-84a1-a6bc2793edca"
I1017 22:08:26.327045 1 controller.go:801] volume "pvc-2bafc440-d259-11e8-953e-02000a1bef39" for claim "test-jenkins/jenkins-jobs-jenkins-master-0" created
I1017 22:08:26.340955 1 controller.go:818] volume "pvc-2bafc440-d259-11e8-953e-02000a1bef39" for claim "test-jenkins/jenkins-jobs-jenkins-master-0" saved
I1017 22:08:26.340981 1 controller.go:854] volume "pvc-2bafc440-d259-11e8-953e-02000a1bef39" provisioned for claim "test-jenkins/jenkins-jobs-jenkins-master-0"
I1017 22:08:28.245193 1 leaderelection.go:198] stopped trying to renew lease to provision for pvc test-jenkins/jenkins-jobs-jenkins-master-0, task succeeded
因此，根据我的 describe 命令，我不确定为什么我可以附加 VolumeMount 但不能安装它。任何想法？