[英]How do I both expose the port on a container to the local host AND bind persistent data to the container?
[英]How to mount pod container path which is having data (I need this data)to my local host path in kubernetes
我有 pod (kind:job),它在“/usr/src/app”下有一些代码构建文件,这些文件在我的本地 k8s 主机中需要。
但是,当我尝试按照以下 yamls 进行操作时,我无法在挂载的主机路径中看到任何实际存在于 pod 容器(“/usr/src/app”)中的数据。 我认为安装是覆盖/隐藏该数据。 请帮助我进入我当地的 k8s 主机。
我的文件是:-
apiVersion: batch/v1
kind: Job
metadata:
name: wf
spec:
template:
spec:
containers:
- name: wf
image: 12345678.dkr.ecr.ap-south-1.amazonaws.com/eks:ws
volumeMounts:
- name: wf-persistent-storage
mountPath: /usr/src/app # my data is in (/usr/src/app)
volumes:
- name: wf-persistent-storage
# pointer to the configuration of HOW we want the mount to be implemented
persistentVolumeClaim:
claimName: wf-test-pvc
restartPolicy: Never
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: wf-test-pvc
spec:
storageClassName: mylocalstorage
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 2Gi
---
apiVersion: v1
kind: PersistentVolume
metadata:
name: local
spec:
storageClassName: mylocalstorage
capacity:
storage: 2Gi
accessModes:
- ReadWriteOnce
hostPath:
path: "/root/mnt/"
type: DirectoryOrCreate
不要挂载你的 /usr/src/app。 因为它将被 PVC 的内容覆盖。 在您的情况下,pvc 最初是空的,因此所有文件都将被删除。
尝试使用以下代码,您将在 pvc 上安装 /tmp 并使用命令将文件复制到 pvc。
apiVersion: batch/v1
kind: Job
metadata:
name: wf
spec:
template:
spec:
containers:
- name: wf
image: 12345678.dkr.ecr.ap-south-1.amazonaws.com/eks:ws
command:
- bash
- -c
- cp -R /usr/src/app/* /tmp/
volumeMounts:
- name: wf-persistent-storage
mountPath: /opt # my data is in (/usr/src/app)
volumes:
- name: wf-persistent-storage
# pointer to the configuration of HOW we want the mount to be implemented
persistentVolumeClaim:
claimName: wf-test-pvc
restartPolicy: Never
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