kubernetes工作起始容器

Question

我已經創建了2個INIT容器 在吊艙創建JOB莢，我的工作成功完成，但沒有初始化容器的標誌

對我來說，這份工作應該有等待完成在案件開始

我的工作藍圖（從Kubernetes資料爲準）前的2個初始化容器要重現該問題

apiVersion: batch/v1 
kind: Job 
metadata: 
    name: pi 
annotations: 
    pod.beta.kubernetes.io/init-containers: '[ 
    { 
     "name": "init-myservice", 
     "image": "busybox", 
     "command": ["sh", "-c", "until nslookup myservice; do echo waiting for myservice; sleep 2; done;"] 
    }, 
    { 
     "name": "init-mydb", 
     "image": "busybox", 
     "command": ["sh", "-c", "until nslookup mydb; do echo waiting for mydb; sleep 2; done;"] 
    } 
    ]' 
spec: 
    template: 
    metadata: 
     name: pi 
    spec: 
     containers: 
     - name: pi 
     image: perl 
     command: ["perl", "-Mbignum=bpi", "-wle", "print bpi(2000)"] 
     restartPolicy: Never 

當檢查我的工作莢

$ kubectl describe pod pi-v2dn9 
Name: pi-v2dn9 
Namespace: default 
Security Policy: anyuid 
Node: 192.168.111.4/192.168.111.4 
Start Time: Thu, 19 Oct 2017 08:58:39 +0000 
Labels: controller-uid=b3091c77-b4ab-11e7-a3ea-fa163ea1c70b 
job-name=pi 
Status: Succeeded 
IP: 10.131.0.46 
Controllers: Job/pi 
Containers: 
pi: 
Container ID: docker://4bc5bb4c9fc65c1aa1999c3bdc09b01e54043dcdd464410edd0c9cad334c9c67 
Image: perl 
Image ID: docker-pullable://docker.io/perl@sha256:80bd8136a0f3e2c7d202236fc5d8f1192dbfa9ec661ecdd5e96a446e9c7913a8 
Port: 
Command: 
perl 
-Mbignum=bpi 
-wle 
print bpi(2000) 
State: Terminated 
Reason: Completed 
Exit Code: 0 
Started: Thu, 19 Oct 2017 08:58:53 +0000 
Finished: Thu, 19 Oct 2017 08:58:58 +0000 
Ready: False 
Restart Count: 0 
Volume Mounts: 
/var/run/secrets/kubernetes.io/serviceaccount from default-token-fxdf1 (ro) 
Environment Variables: 
Conditions: 
Type Status 
Initialized True 
Ready False 
PodScheduled True 
Volumes: 
default-token-fxdf1: 
Type: Secret (a volume populated by a Secret) 
SecretName: default-token-fxdf1 
QoS Class: BestEffort 
Tolerations: 
Events: 
FirstSeen LastSeen Count From SubObjectPath Type Reason Message 

26s 26s 1 {default-scheduler } Normal Scheduled Successfully assigned pi-v2dn9 to 192.168.111.4 
25s 25s 1 {kubelet 192.168.111.4} spec.containers{pi} Normal Pulling pulling image "perl" 
12s 12s 1 {kubelet 192.168.111.4} spec.containers{pi} Normal Pulled Successfully pulled image "perl" 
12s 12s 1 {kubelet 192.168.111.4} spec.containers{pi} Normal Created Created container with docker id 4bc5bb4c9fc6; Security:[seccomp=unconfined] 
12s 12s 1 {kubelet 192.168.111.4} spec.containers{pi} Normal Started Started container with docker id 4bc5bb4c9fc6 

INIT容器的標誌!!!

我的環境： --- Kubernetes版本（使用kubectl版）： 客戶端版本：version.Info {專業： 「1」，次： 「5」，GitVersion： 「V1.5.2 + 43a9be4」，GitCommit ：「43a9be4」，GitTreeState：「clean」，BuildDate：「2017-04-20T15：38：11Z」，GoVersion：「go1.7.4」，編譯器：「gc」，平臺：「linux/amd64」} 服務器版本：version.Info {Major：「1」，Minor：「5」，GitVersion：「v1.5.2 + 43a9be4」，GitCommit：「43a9be4」，GitTreeState：「clean」，BuildDate：「2017-04-20T15：38： 11Z」，GoVersion： 「go1.7.4」，編譯： 「GC」，平臺 「的Linux/AMD64」}

我在一個集羣工作從OpenStack的

OS是紅帽企業Linux服務器7.3（邁波）

在此先感謝您的任何幫助。

Answer 1

嘗試添加註釋規範模板，而不是招聘對象：

apiVersion: batch/v1 
kind: Job 
metadata: 
    name: pi 
spec: 
    template: 
    metadata: 
     name: pi 
    annotations: 
     pod.beta.kubernetes.io/init-containers: '[ 
     { 
      "name": "init-myservice", 
      "image": "busybox", 
      "command": ["sh", "-c", "until nslookup myservice; do echo waiting for myservice; sleep 2; done;"] 
     }, 
     { 
      "name": "init-mydb", 
      "image": "busybox", 
      "command": ["sh", "-c", "until nslookup mydb; do echo waiting for mydb; sleep 2; done;"] 
     } 
     ]' 
    spec: 
     containers: 
     - name: pi 
     image: perl 
     command: ["perl", "-Mbignum=bpi", "-wle", "print bpi(2000)"] 
     restartPolicy: Never 

Answer 2

你的註釋是在錯誤的地方。特別是對於init容器，它們應該在pod元數據中定義，而您已將其添加到作業元數據中。

apiVersion: batch/v1 
kind: Job 
metadata: 
    name: pi 
spec: 
    template: 
    metadata: 
     name: pi 
     annotations: 
     pod.beta.kubernetes.io/init-containers: '[ 
      { 
      "name": "init-myservice", 
      "image": "busybox", 
      "command": ["sh", "-c", "until nslookup myservice; do echo waiting for myservice; sleep 2; done;"] 
      }, 
      { 
      "name": "init-mydb", 
      "image": "busybox", 
      "command": ["sh", "-c", "until nslookup mydb; do echo waiting for mydb; sleep 2; done;"] 
      } 
     ]' 
    spec: 
     containers: 
     - name: pi 
     image: perl 
     command: ["perl", "-Mbignum=bpi", "-wle", "print bpi(2000)"] 
     restartPolicy: Never