Kubernetes JupyterHub中心Pod卡在挂起状态-Pod已解除立即PersistentVolumeClaims的绑定
我在kubernetes集群上部署juypterhub时遇到问题。我得到的问题是,中心吊舱被困在等待中 堆栈: 库比德 法兰绒 编织 掌舵 朱皮特胡布 运行手册:Kubernetes JupyterHub中心Pod卡在挂起状态-Pod已解除立即PersistentVolumeClaims的绑定,kubernetes,kubeadm,jupyterhub,flannel,Kubernetes,Kubeadm,Jupyterhub,Flannel,我在kubernetes集群上部署juypterhub时遇到问题。我得到的问题是,中心吊舱被困在等待中 堆栈: 库比德 法兰绒 编织 掌舵 朱皮特胡布 运行手册: $kubeadm init --pod-network-cidr="10.244.0.0/16" $sudo cp /etc/kubernetes/admin.conf $HOME/ && sudo chown $(id -u):$(id -g) $HOME/admin.conf && export
$kubeadm init --pod-network-cidr="10.244.0.0/16"
$sudo cp /etc/kubernetes/admin.conf $HOME/ && sudo chown $(id -u):$(id -g) $HOME/admin.conf && export KUBECONFIG=$HOME/admin.conf
$kubectl create -f pvc.yml
$kubectl create -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel-aliyun.yml
$kubectl apply --filename https://git.io/weave-kube-1.6
$kubectl taint nodes --all node-role.kubernetes.io/master-
舵机安装应符合以下要求:
Jupyter安装符合
config.yml
聚氯乙烯
警告是:
$kubectl --namespace=jhub get pod
NAME READY STATUS RESTARTS AGE
hub-fb48dfc4f-mqf4c 0/1 Pending 0 3m33s
proxy-86977cf9f7-fqf8d 1/1 Running 0 3m33s
$kubectl --namespace=jhub describe pod hub
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Warning FailedScheduling 35s (x3 over 35s) default-scheduler pod has unbound immediate PersistentVolumeClaims
$kubectl --namespace=jhub describe pv
Name: standard
Labels: type=local
Annotations: pv.kubernetes.io/bound-by-controller: yes
Finalizers: [kubernetes.io/pv-protection]
StorageClass: manual
Status: Bound
Claim: default/standard
Reclaim Policy: Retain
Access Modes: RWO
VolumeMode: Filesystem
Capacity: 10Gi
Node Affinity: <none>
Message:
Source:
Type: HostPath (bare host directory volume)
Path: /dev/vdb
HostPathType:
Events: <none>
$kubectl --namespace=kube-system describe pvc
Name: hub-db-dir
Namespace: jhub
StorageClass:
Status: Pending
Volume:
Labels: app=jupyterhub
chart=jupyterhub-0.8.0-beta.1
component=hub
heritage=Tiller
release=jhub
Annotations: <none>
Finalizers: [kubernetes.io/pvc-protection]
Capacity:
Access Modes:
VolumeMode: Filesystem
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal FailedBinding 13s (x7 over 85s) persistentvolume-controller no persistent volumes available for this claim and no storage class is set
Mounted By: hub-fb48dfc4f-mqf4c
我尽力在kubernetes官方网站上遵循localstorage卷配置,但没有成功
-G使用以下配置成功修复了它。 要点: -我忘了在nodeAffinity中添加节点 -它可以在不使用VolumeBinding模式的情况下工作
apiVersion: v1
kind: PersistentVolume
metadata:
name: standard
spec:
capacity:
storage: 2Gi
# volumeMode field requires BlockVolume Alpha feature gate to be enabled.
volumeMode: Filesystem
accessModes:
- ReadWriteOnce
persistentVolumeReclaimPolicy: Retain
storageClassName: local-storage
local:
path: /temp
nodeAffinity:
required:
nodeSelectorTerms:
- matchExpressions:
- key: kubernetes.io/hostname
operator: In
values:
- INSERT_NODE_NAME_HERE
config.yaml
proxy:
secretToken: "token"
singleuser:
storage:
dynamic:
storageClass: local-storage
确保您的存储/pv如下所示:
root@asdf:~# kubectl --namespace=kube-system describe pv
Name: standard
Labels: <none>
Annotations: kubectl.kubernetes.io/last-applied-configuration:
{"apiVersion":"v1","kind":"PersistentVolume","metadata":{"annotations":{},"name":"standard"},"spec":{"accessModes":["ReadWriteOnce"],"capa...
pv.kubernetes.io/bound-by-controller: yes
Finalizers: [kubernetes.io/pv-protection]
StorageClass: local-storage
Status: Bound
Claim: jhub/hub-db-dir
Reclaim Policy: Retain
Access Modes: RWO
VolumeMode: Filesystem
Capacity: 2Gi
Node Affinity:
Required Terms:
Term 0: kubernetes.io/hostname in [asdf]
Message:
Source:
Type: LocalVolume (a persistent volume backed by local storage on a node)
Path: /temp
Events: <none>
root@asdf:~# kubectl --namespace=jhub describe pod hub
Name: hub-5d4fcd8fd9-p6crs
Namespace: jhub
Priority: 0
PriorityClassName: <none>
Node: asdf/192.168.0.87
Start Time: Sat, 23 Feb 2019 14:29:51 +0800
Labels: app=jupyterhub
component=hub
hub.jupyter.org/network-access-proxy-api=true
hub.jupyter.org/network-access-proxy-http=true
hub.jupyter.org/network-access-singleuser=true
pod-template-hash=5d4fcd8fd9
release=jhub
Annotations: checksum/config-map: --omitted
checksum/secret: --omitted--
Status: Running
IP: 10.244.0.55
Controlled By: ReplicaSet/hub-5d4fcd8fd9
Containers:
hub:
Container ID: docker://d2d4dec8cc16fe21589e67f1c0c6c6114b59b01c67a9f06391830a1ea711879d
Image: jupyterhub/k8s-hub:0.8.0
Image ID: docker-pullable://jupyterhub/k8s-hub@sha256:e40cfda4f305af1a2fdf759cd0dcda834944bef0095c8b5ecb7734d19f58b512
Port: 8081/TCP
Host Port: 0/TCP
Command:
jupyterhub
--config
/srv/jupyterhub_config.py
--upgrade-db
State: Running
Started: Sat, 23 Feb 2019 14:30:28 +0800
Ready: True
Restart Count: 0
Requests:
cpu: 200m
memory: 512Mi
Environment:
PYTHONUNBUFFERED: 1
HELM_RELEASE_NAME: jhub
POD_NAMESPACE: jhub (v1:metadata.namespace)
CONFIGPROXY_AUTH_TOKEN: <set to the key 'proxy.token' in secret 'hub-secret'> Optional: false
Mounts:
/etc/jupyterhub/config/ from config (rw)
/etc/jupyterhub/secret/ from secret (rw)
/srv/jupyterhub from hub-db-dir (rw)
/var/run/secrets/kubernetes.io/serviceaccount from hub-token-bxzl7 (ro)
Conditions:
Type Status
Initialized True
Ready True
ContainersReady True
PodScheduled True
Volumes:
config:
Type: ConfigMap (a volume populated by a ConfigMap)
Name: hub-config
Optional: false
secret:
Type: Secret (a volume populated by a Secret)
SecretName: hub-secret
Optional: false
hub-db-dir:
Type: PersistentVolumeClaim (a reference to a PersistentVolumeClaim in the same namespace)
ClaimName: hub-db-dir
ReadOnly: false
hub-token-bxzl7:
Type: Secret (a volume populated by a Secret)
SecretName: hub-token-bxzl7
Optional: false
QoS Class: Burstable
Node-Selectors: <none>
Tolerations: node.kubernetes.io/not-ready:NoExecute for 300s
node.kubernetes.io/unreachable:NoExecute for 300s
Events: <none>
现在集线器吊舱看起来像这样:
root@asdf:~# kubectl --namespace=kube-system describe pv
Name: standard
Labels: <none>
Annotations: kubectl.kubernetes.io/last-applied-configuration:
{"apiVersion":"v1","kind":"PersistentVolume","metadata":{"annotations":{},"name":"standard"},"spec":{"accessModes":["ReadWriteOnce"],"capa...
pv.kubernetes.io/bound-by-controller: yes
Finalizers: [kubernetes.io/pv-protection]
StorageClass: local-storage
Status: Bound
Claim: jhub/hub-db-dir
Reclaim Policy: Retain
Access Modes: RWO
VolumeMode: Filesystem
Capacity: 2Gi
Node Affinity:
Required Terms:
Term 0: kubernetes.io/hostname in [asdf]
Message:
Source:
Type: LocalVolume (a persistent volume backed by local storage on a node)
Path: /temp
Events: <none>
root@asdf:~# kubectl --namespace=jhub describe pod hub
Name: hub-5d4fcd8fd9-p6crs
Namespace: jhub
Priority: 0
PriorityClassName: <none>
Node: asdf/192.168.0.87
Start Time: Sat, 23 Feb 2019 14:29:51 +0800
Labels: app=jupyterhub
component=hub
hub.jupyter.org/network-access-proxy-api=true
hub.jupyter.org/network-access-proxy-http=true
hub.jupyter.org/network-access-singleuser=true
pod-template-hash=5d4fcd8fd9
release=jhub
Annotations: checksum/config-map: --omitted
checksum/secret: --omitted--
Status: Running
IP: 10.244.0.55
Controlled By: ReplicaSet/hub-5d4fcd8fd9
Containers:
hub:
Container ID: docker://d2d4dec8cc16fe21589e67f1c0c6c6114b59b01c67a9f06391830a1ea711879d
Image: jupyterhub/k8s-hub:0.8.0
Image ID: docker-pullable://jupyterhub/k8s-hub@sha256:e40cfda4f305af1a2fdf759cd0dcda834944bef0095c8b5ecb7734d19f58b512
Port: 8081/TCP
Host Port: 0/TCP
Command:
jupyterhub
--config
/srv/jupyterhub_config.py
--upgrade-db
State: Running
Started: Sat, 23 Feb 2019 14:30:28 +0800
Ready: True
Restart Count: 0
Requests:
cpu: 200m
memory: 512Mi
Environment:
PYTHONUNBUFFERED: 1
HELM_RELEASE_NAME: jhub
POD_NAMESPACE: jhub (v1:metadata.namespace)
CONFIGPROXY_AUTH_TOKEN: <set to the key 'proxy.token' in secret 'hub-secret'> Optional: false
Mounts:
/etc/jupyterhub/config/ from config (rw)
/etc/jupyterhub/secret/ from secret (rw)
/srv/jupyterhub from hub-db-dir (rw)
/var/run/secrets/kubernetes.io/serviceaccount from hub-token-bxzl7 (ro)
Conditions:
Type Status
Initialized True
Ready True
ContainersReady True
PodScheduled True
Volumes:
config:
Type: ConfigMap (a volume populated by a ConfigMap)
Name: hub-config
Optional: false
secret:
Type: Secret (a volume populated by a Secret)
SecretName: hub-secret
Optional: false
hub-db-dir:
Type: PersistentVolumeClaim (a reference to a PersistentVolumeClaim in the same namespace)
ClaimName: hub-db-dir
ReadOnly: false
hub-token-bxzl7:
Type: Secret (a volume populated by a Secret)
SecretName: hub-token-bxzl7
Optional: false
QoS Class: Burstable
Node-Selectors: <none>
Tolerations: node.kubernetes.io/not-ready:NoExecute for 300s
node.kubernetes.io/unreachable:NoExecute for 300s
Events: <none>
使用以下配置成功修复了它。 要点: -我忘了在nodeAffinity中添加节点 -它可以在不使用VolumeBinding模式的情况下工作
apiVersion: v1
kind: PersistentVolume
metadata:
name: standard
spec:
capacity:
storage: 2Gi
# volumeMode field requires BlockVolume Alpha feature gate to be enabled.
volumeMode: Filesystem
accessModes:
- ReadWriteOnce
persistentVolumeReclaimPolicy: Retain
storageClassName: local-storage
local:
path: /temp
nodeAffinity:
required:
nodeSelectorTerms:
- matchExpressions:
- key: kubernetes.io/hostname
operator: In
values:
- INSERT_NODE_NAME_HERE
config.yaml
proxy:
secretToken: "token"
singleuser:
storage:
dynamic:
storageClass: local-storage
确保您的存储/pv如下所示:
root@asdf:~# kubectl --namespace=kube-system describe pv
Name: standard
Labels: <none>
Annotations: kubectl.kubernetes.io/last-applied-configuration:
{"apiVersion":"v1","kind":"PersistentVolume","metadata":{"annotations":{},"name":"standard"},"spec":{"accessModes":["ReadWriteOnce"],"capa...
pv.kubernetes.io/bound-by-controller: yes
Finalizers: [kubernetes.io/pv-protection]
StorageClass: local-storage
Status: Bound
Claim: jhub/hub-db-dir
Reclaim Policy: Retain
Access Modes: RWO
VolumeMode: Filesystem
Capacity: 2Gi
Node Affinity:
Required Terms:
Term 0: kubernetes.io/hostname in [asdf]
Message:
Source:
Type: LocalVolume (a persistent volume backed by local storage on a node)
Path: /temp
Events: <none>
root@asdf:~# kubectl --namespace=jhub describe pod hub
Name: hub-5d4fcd8fd9-p6crs
Namespace: jhub
Priority: 0
PriorityClassName: <none>
Node: asdf/192.168.0.87
Start Time: Sat, 23 Feb 2019 14:29:51 +0800
Labels: app=jupyterhub
component=hub
hub.jupyter.org/network-access-proxy-api=true
hub.jupyter.org/network-access-proxy-http=true
hub.jupyter.org/network-access-singleuser=true
pod-template-hash=5d4fcd8fd9
release=jhub
Annotations: checksum/config-map: --omitted
checksum/secret: --omitted--
Status: Running
IP: 10.244.0.55
Controlled By: ReplicaSet/hub-5d4fcd8fd9
Containers:
hub:
Container ID: docker://d2d4dec8cc16fe21589e67f1c0c6c6114b59b01c67a9f06391830a1ea711879d
Image: jupyterhub/k8s-hub:0.8.0
Image ID: docker-pullable://jupyterhub/k8s-hub@sha256:e40cfda4f305af1a2fdf759cd0dcda834944bef0095c8b5ecb7734d19f58b512
Port: 8081/TCP
Host Port: 0/TCP
Command:
jupyterhub
--config
/srv/jupyterhub_config.py
--upgrade-db
State: Running
Started: Sat, 23 Feb 2019 14:30:28 +0800
Ready: True
Restart Count: 0
Requests:
cpu: 200m
memory: 512Mi
Environment:
PYTHONUNBUFFERED: 1
HELM_RELEASE_NAME: jhub
POD_NAMESPACE: jhub (v1:metadata.namespace)
CONFIGPROXY_AUTH_TOKEN: <set to the key 'proxy.token' in secret 'hub-secret'> Optional: false
Mounts:
/etc/jupyterhub/config/ from config (rw)
/etc/jupyterhub/secret/ from secret (rw)
/srv/jupyterhub from hub-db-dir (rw)
/var/run/secrets/kubernetes.io/serviceaccount from hub-token-bxzl7 (ro)
Conditions:
Type Status
Initialized True
Ready True
ContainersReady True
PodScheduled True
Volumes:
config:
Type: ConfigMap (a volume populated by a ConfigMap)
Name: hub-config
Optional: false
secret:
Type: Secret (a volume populated by a Secret)
SecretName: hub-secret
Optional: false
hub-db-dir:
Type: PersistentVolumeClaim (a reference to a PersistentVolumeClaim in the same namespace)
ClaimName: hub-db-dir
ReadOnly: false
hub-token-bxzl7:
Type: Secret (a volume populated by a Secret)
SecretName: hub-token-bxzl7
Optional: false
QoS Class: Burstable
Node-Selectors: <none>
Tolerations: node.kubernetes.io/not-ready:NoExecute for 300s
node.kubernetes.io/unreachable:NoExecute for 300s
Events: <none>
现在集线器吊舱看起来像这样:
root@asdf:~# kubectl --namespace=kube-system describe pv
Name: standard
Labels: <none>
Annotations: kubectl.kubernetes.io/last-applied-configuration:
{"apiVersion":"v1","kind":"PersistentVolume","metadata":{"annotations":{},"name":"standard"},"spec":{"accessModes":["ReadWriteOnce"],"capa...
pv.kubernetes.io/bound-by-controller: yes
Finalizers: [kubernetes.io/pv-protection]
StorageClass: local-storage
Status: Bound
Claim: jhub/hub-db-dir
Reclaim Policy: Retain
Access Modes: RWO
VolumeMode: Filesystem
Capacity: 2Gi
Node Affinity:
Required Terms:
Term 0: kubernetes.io/hostname in [asdf]
Message:
Source:
Type: LocalVolume (a persistent volume backed by local storage on a node)
Path: /temp
Events: <none>
root@asdf:~# kubectl --namespace=jhub describe pod hub
Name: hub-5d4fcd8fd9-p6crs
Namespace: jhub
Priority: 0
PriorityClassName: <none>
Node: asdf/192.168.0.87
Start Time: Sat, 23 Feb 2019 14:29:51 +0800
Labels: app=jupyterhub
component=hub
hub.jupyter.org/network-access-proxy-api=true
hub.jupyter.org/network-access-proxy-http=true
hub.jupyter.org/network-access-singleuser=true
pod-template-hash=5d4fcd8fd9
release=jhub
Annotations: checksum/config-map: --omitted
checksum/secret: --omitted--
Status: Running
IP: 10.244.0.55
Controlled By: ReplicaSet/hub-5d4fcd8fd9
Containers:
hub:
Container ID: docker://d2d4dec8cc16fe21589e67f1c0c6c6114b59b01c67a9f06391830a1ea711879d
Image: jupyterhub/k8s-hub:0.8.0
Image ID: docker-pullable://jupyterhub/k8s-hub@sha256:e40cfda4f305af1a2fdf759cd0dcda834944bef0095c8b5ecb7734d19f58b512
Port: 8081/TCP
Host Port: 0/TCP
Command:
jupyterhub
--config
/srv/jupyterhub_config.py
--upgrade-db
State: Running
Started: Sat, 23 Feb 2019 14:30:28 +0800
Ready: True
Restart Count: 0
Requests:
cpu: 200m
memory: 512Mi
Environment:
PYTHONUNBUFFERED: 1
HELM_RELEASE_NAME: jhub
POD_NAMESPACE: jhub (v1:metadata.namespace)
CONFIGPROXY_AUTH_TOKEN: <set to the key 'proxy.token' in secret 'hub-secret'> Optional: false
Mounts:
/etc/jupyterhub/config/ from config (rw)
/etc/jupyterhub/secret/ from secret (rw)
/srv/jupyterhub from hub-db-dir (rw)
/var/run/secrets/kubernetes.io/serviceaccount from hub-token-bxzl7 (ro)
Conditions:
Type Status
Initialized True
Ready True
ContainersReady True
PodScheduled True
Volumes:
config:
Type: ConfigMap (a volume populated by a ConfigMap)
Name: hub-config
Optional: false
secret:
Type: Secret (a volume populated by a Secret)
SecretName: hub-secret
Optional: false
hub-db-dir:
Type: PersistentVolumeClaim (a reference to a PersistentVolumeClaim in the same namespace)
ClaimName: hub-db-dir
ReadOnly: false
hub-token-bxzl7:
Type: Secret (a volume populated by a Secret)
SecretName: hub-token-bxzl7
Optional: false
QoS Class: Burstable
Node-Selectors: <none>
Tolerations: node.kubernetes.io/not-ready:NoExecute for 300s
node.kubernetes.io/unreachable:NoExecute for 300s
Events: <none>
嗨,PV的状态是如何绑定的?地位:Bound@Suresh我重新运行了它,它给了我状态:可用,但我仍然有相同的问题Hi,它正在寻找storageclass为PVC创建动态卷。您可以运行以下命令吗?kubectl获得storageclass,我将交叉检查它如何与localvolumeHi Suresh kubectl-命名空间jhub get storageclass NAME PROVISIONER AGE local storage kubernetes.io/no-PROVISIONER 4m26s kubectl-命名空间jhub Descripte storageclass NAME:local storage IsDefaultClass:无注释:Provisioner:kubernetes.io/no-Provisioner参数:AllowVolumeExpansion:MountOptions:ReclaintPolicy:Delete VolumeBindingMode:WaitForFirstConsumer事件:嗨,让我们将此存储类设为默认,这是参考资料,请查看步骤3 Hi PV的状态是如何绑定的?地位:Bound@Suresh我重新运行了它,它给了我状态:可用,但我仍然有相同的问题Hi,它正在寻找storageclass为PVC创建动态卷。您可以运行以下命令吗?kubectl获得storageclass,我将交叉检查它如何与localvolumeHi Suresh kubectl-命名空间jhub get storageclass NAME PROVISIONER AGE local storage kubernetes.io/no-PROVISIONER 4m26s kubectl-命名空间jhub Descripte storageclass NAME:local storage IsDefaultClass:无注释:Provisioner:kubernetes.io/no-Provisioner参数:AllowVolumeExpansion:MountOptions:ReclaintPolicy:Delete VolumeBindingMode:WaitForFirstConsumer事件:您好,让我们将此存储类设为默认,下面是参考并查看步骤3