是否可以在Kubernetes复制控制器中设置主机名?

问题描述

我需要在Kubernetes复制控制器中设置一个静态主机名. Docker带有一些运行时标志来支持它，但是，Kubernetes复制控制器似乎不支持它.环境:OS-CentOS 6.6使用sysctl更改变量kernel.hostname的方法不适用于K8s复制控制器.主机名未更改.使用:sysctl kernel.hostname读取当前的主机名，以及sysctl kernel.hostname = NEW_HOSTNAME

I need to set a static hostname in a Kubernetes replication controller. Docker supports it with some runtime flags, however, Kubernetes replication controllers don't appear to support it.The environment: OS - CentOS 6.6Approach to use sysctl to change the variable kernel.hostname does not work for a K8s replication controller. The host name is not changed.Use:sysctl kernel.hostnameto read the current hostname, andsysctl kernel.hostname=NEW_HOSTNAME

是否可以在Kubernetes复制控制器中设置主机名?

Is it possible to set a hostname in a Kubernetes replication controller?

推荐答案

在1.7中，您可以直接在部署"规范中设置主机名

In 1.7 you can set the hostname directly in the Deployment spec

spec:
  replicas: 1
  template:
    spec:
      hostname: myhostname
      containers:
        ...

旧答案

现在1.2已着陆，您可以使用pod.beta.kubernetes.io/hostname批注在Replication Controller或Deployment spec中设置静态主机名.

Now that 1.2 has landed, you can set a static hostname in a Replication Controller or Deployment spec using the pod.beta.kubernetes.io/hostname annotation.

spec:
  replicas: 1
  template:
    metadata:
      annotations:
        pod.beta.kubernetes.io/hostname: myhostname
      labels:
        ...

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