Kubernetes worker pod中的Shell脚本



我需要从worker pod运行shell脚本。为此,我创建了configMap并作为卷加载。当我应用配置时,我看到一个名为shell的目录被创建了。你能帮助我理解我为什么看到这种行为吗。

volumes:
- name: rhfeed
configMap: 
name: rhfeed
defaultMode: 0777
volumeMounts:
- name: rhfeed
mountPath: /local_path/rh-feed/rh-generator.sh
subPath: rh-generator.sh
readOnly: true

drwxrwsrwx 2 root 1000 4096 Jun 22 06:55 rh-generator.sh

由于使用而创建的rh-generator.sh文件夹已使用subPath

subPath创建一个单独的文件夹。

我刚刚用为nginxpod提供一些静态文件的ConfigMap执行了一个测试,我的文件被正确装载,没有覆盖或创建删除目录的内容。

这是configMapyaml文件:

apiVersion: v1
kind: ConfigMap
metadata:
name: static-files
data:
index.html: |
<html><head><title>File Mounted from ConfigMap</title></head>
<body><h1>Welcome</h1>
<p>Hi, This confirm that your yaml with subPath is working fine</p>
</body></html>

这里是podyaml文件:

➜  ~ cat pod-static-files.yaml 
apiVersion: v1
kind: Pod
metadata:
name: website
spec:
volumes:
- name: static-files
configMap:
name: static-files
containers:
- name: nginx
image: nginx
volumeMounts:
- name: static-files
mountPath: /usr/share/nginx/index.html
subPath: index.html

正如你在下面看到的,我已经将文件安装到目录中,没有任何问题:

➜  ~ keti website bash 
root@website:~# ls /usr/share/nginx/
html  index.html

这是/usr/share/nginx/index.html文件的内容:

➜ root@website:~# cat /usr/share/nginx/index.html 
<html><head><title>File Mounted from ConfigMap</title></head>
<body><h1>Welcomet</h1>
<p>Hi, This confirm that your yaml with subPath is working fine</p>
</body></html>

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