用k8s创建完pod后,发现无法访问demo应用,查了一下pods状态,发现都在containercreationg状态中。

百度了一下,根据网上的方法,查了一下mysql-jn6f2这个pods的详情

其中最主要的问题是:details: (open/etc/docker/certs.d/registry.access.redhat.com/redhat-ca.crt: no such file ordirectory)

解决方案:

查看/etc/docker/certs.d/registry.access.redhat.com/redhat-ca.crt(该链接就是上图中的说明) 是一个软链接,但是链接过去后并没有真实的/etc/rhsm,所以需要使用yum安装:

yum install *rhsm*

 

安装完成后,执行一下dockerpull registry.access.redhat.com/rhel7/pod-infrastructure:latest

如果依然报错,可参考下面的方案:

 wget http://mirror.centos.org/centos/7/os/x86_64/Packages/python-rhsm-certificates-1.19.10-1.el7_4.x86_64.rpm
rpm2cpiopython-rhsm-certificates-1.19.10-1.el7_4.x86_64.rpm | cpio -iv --to-stdout./etc/rhsm/ca/redhat-uep.pem | tee /etc/rhsm/ca/redhat-uep.pem 

这两个命令会生成/etc/rhsm/ca/redhat-uep.pem文件.

顺得的话会得到下面的结果。

[root@localhost]# docker pullregistry.access.redhat.com/rhel7/pod-infrastructure:latest

Trying to pull repositoryregistry.access.redhat.com/rhel7/pod-infrastructure ...

latest: Pulling fromregistry.access.redhat.com/rhel7/pod-infrastructure

26e5ed6899db: Pull complete

66dbe984a319: Pull complete

9138e7863e08: Pull complete

Digest:sha256:92d43c37297da3ab187fc2b9e9ebfb243c1110d446c783ae1b989088495db931

Status: Downloaded newer image forregistry.access.redhat.com/rhel7/pod-infrastructure:latest

 

删除原来创建的rc

[root@localhost /]# kubectl delete -fmysql-rc.yaml

 

重新创建

[root@localhost /]# kubectl create -fmysql-rc.yaml

replicationcontroller "mysql"created

 

再次查看状态

[root@localhost /]# kubectl get pod

NAME          READY     STATUS   RESTARTS   AGE

mysql-b8m2q   1/1      Running   0          27m

 

一切正常。

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