1今天发现我的pod 建后：状态是 CrashLoopBackOff
[[email protected] ~]# oc get pod
NAME READY STATUS RESTARTS AGE
mysql01-1-qs0n7 0/1 CrashLoopBackOff 9 31m
2: 查看一些pod 的状态：
[[email protected] ~]# oc describe pod mysql01-1-qs0n7
21m 1s 96 {kubelet test3} Warning FailedSync Error syncing pod, skipping: failed to "StartContainer" for "mysql01" with CrashLoopBackOff: "Back-off 5m0s restarting failed container=mysql01 pod=mysql01-1-qs0n7_shp(0a37825a-2624-11ea-b48a-525400e21bea)"
27m 1s 123 {kubelet test3} spec.containers{mysql01} Warning BackOff Back-off restarting failed docker container
3: 登入到openshift 的console 上面看event log, 发现报错: back-off fafiled:
我看了一些， image 都push 成功啦阿，container 也是create 成功啦，为什么会back-off failed 呢。下面看一些log:
4: 发现原来是参数没有设全：
[[email protected] ~]# oc log mysql01-1-qs0n7
W1224 03:19:22.089457 22103 cmd.go:357] log is DEPRECATED and will be removed in a future version. Use logs instead.
=> sourcing 20-validate-variables.sh ...
You must either specify the following environment variables:
MYSQL_USER (regex: '^[a-zA-Z0-9_]+$')
MYSQL_PASSWORD (regex: '^[[email protected]#$%^&*()-=<>,.?;:|]+$')
MYSQL_DATABASE (regex: '^[a-zA-Z0-9_]+$')
Or the following environment variable:
MYSQL_ROOT_PASSWORD (regex: '^[[email protected]#$%^&*()-=<>,.?;:|]+$')
Or both.
5: 下面进行增加参数：
进入deployment 页面里面，进入这个deployment: mysql01, 然后点右上角的action --> edit, 出现如下界面：
增加上面的"Environment Variables" 添加：MYSQL_USER , MYSQL_PASSWORD, MYSQL_DATABASE, 然后保存。就可以看到pod 运行正常啦。