bash – Kubernetes：如何调试CrashLoopBackOff

我有以下设置：

在码头工人中心的码头工作者图像omg / telperion
一个kubernetes集群(有4个节点,每个节点有~50GB RAM)和充足的资源

我按照教程将图像从dockerhub拉到kubernetes

SERVICE_NAME=telperion
DOCKER_SERVER="https://index.docker.io/v1/"
DOCKER_USERNAME=username
DOCKER_PASSWORD=password
DOCKER_EMAIL="omg@whatever.com"

# Create secret
kubectl create secret docker-registry dockerhub --docker-server=$DOCKER_SERVER --docker-username=$DOCKER_USERNAME --docker-password=$DOCKER_PASSWORD --docker-email=$DOCKER_EMAIL

# Create service yaml
echo "apiVersion: v1 n
kind: Pod n
metadata: n
  name: ${SERVICE_NAME} n
spec: n
  containers: n
    - name: ${SERVICE_NAME} n
      image: omg/${SERVICE_NAME} n
      imagePullPolicy: Always n
      command: [ "echo","done deploying $SERVICE_NAME" ] n
  imagePullSecrets: n
    - name: dockerhub" > $SERVICE_NAME.yaml

 # Deploy to kubernetes
 kubectl create -f $SERVICE_NAME.yaml

这导致pod进入CrashLoopBackoff

docker run -it -p8080：9546 omg / telperion工作正常.

所以我的问题是
这是可调试的吗？如果是的话,我该如何调试呢？

一些日志：

kubectl get nodes                                                                                          
NAME                    STATUS                     AGE       VERSION
k8s-agent-adb12ed9-0    Ready                      22h       v1.6.6
k8s-agent-adb12ed9-1    Ready                      22h       v1.6.6
k8s-agent-adb12ed9-2    Ready                      22h       v1.6.6
k8s-master-adb12ed9-0   Ready,SchedulingDisabled   22h       v1.6.6

.

kubectl get pods                                                                                               
NAME                        READY     STATUS             RESTARTS   AGE
telperion                    0/1       CrashLoopBackOff   10         28m

.

kubectl describe pod telperion
Name:           telperion
Namespace:      default
Node:           k8s-agent-adb12ed9-2/10.240.0.4
Start Time:     Wed,21 Jun 2017 10:18:23 +0000
Labels:         

journalctl -u kubelet

Jun 21 10:28:49 k8s-master-ADB12ED9-0 docker[1622]: E0621 10:28:49.798140    1809 fsHandler.go:121] failed to collect filesystem stats - rootDiskErr: du command failed on /var/lib/docker/overlay/5cfff16d670f2df6520360595d7858fb5d16607b6999a88e5dcbc09e1e7ab9ce with output
Jun 21 10:28:49 k8s-master-ADB12ED9-0 docker[1622]:,stderr: du: cannot access '/var/lib/docker/overlay/5cfff16d670f2df6520360595d7858fb5d16607b6999a88e5dcbc09e1e7ab9ce/merged/proc/13122/task/13122/fd/4': No such file or directory
Jun 21 10:28:49 k8s-master-ADB12ED9-0 docker[1622]: du: cannot access '/var/lib/docker/overlay/5cfff16d670f2df6520360595d7858fb5d16607b6999a88e5dcbc09e1e7ab9ce/merged/proc/13122/task/13122/fdinfo/4': No such file or directory
Jun 21 10:28:49 k8s-master-ADB12ED9-0 docker[1622]: du: cannot access '/var/lib/docker/overlay/5cfff16d670f2df6520360595d7858fb5d16607b6999a88e5dcbc09e1e7ab9ce/merged/proc/13122/fd/3': No such file or directory
Jun 21 10:28:49 k8s-master-ADB12ED9-0 docker[1622]: du: cannot access '/var/lib/docker/overlay/5cfff16d670f2df6520360595d7858fb5d16607b6999a88e5dcbc09e1e7ab9ce/merged/proc/13122/fdinfo/3': No such file or directory
Jun 21 10:28:49 k8s-master-ADB12ED9-0 docker[1622]:  - exit status 1,rootInodeErr: 

kubectl logs $SERVICE_NAME -p                                                                                                    
done deploying telperion