使用主机路径与Kind Kubernetes群集共享本地目录 [英] Share local directory with Kind Kubernetes Cluster using hostpath

问题描述

我想与同类集群共享我的非空本地目录.

I want to share my non-empty local directory with kind cluster.

基于此处的答案:如何以Kind(在docker中为kubernetes)引用本地卷

我尝试了以下几种变化:

I tried few variations of the following:

种类群集Yaml:

kind: Cluster
apiVersion: kind.x-k8s.io/v1alpha4
nodes:
- role: control-plane
  extraMounts:
  - hostPath: /Users/xyz/documents/k8_automation/data/manual/
    containerPath: /host_manual
  extraPortMappings:
  - containerPort: 30000
    hostPort: 10000

Pod yaml:

apiVersion: v1
kind: Pod
metadata:
  name: manual 
spec:
  serviceAccountName: manual-sa
  containers:
  - name: tools 
    image: tools:latest 
    imagePullPolicy: Never
    command:
    - bash
    tty: true
    volumeMounts:
    - mountPath: /home/jenkins/agent/data
      name: data
  volumes:
  - name: data
    hostPath: 
      path: /host_manual
      type: Directory
---

我看到在创建pod时目录/home/jenkins/agent/data确实存在.但是，该文件夹为空.

I see that the directory /home/jenkins/agent/data does exist when the pod gets created. However, the folder is empty.

此处的种类文档: https://kind.sigs. k8s.io/docs/user/configuration/#extra-mounts

应该是这样的情况:群集yaml中extraMounts中主机路径(/Users/xyz/documents/k8_automation/data/manual/)上本地计算机中的任何内容都可用于容器路径(/host_manual)上的节点，然后将其安装在容器卷mounthPath(/home/jenkins/agent/data).

It should be the case that whatever is in the local machine at hostpath (/Users/xyz/documents/k8_automation/data/manual/) in extraMounts in the cluster yaml be available to the node at containerPath (/host_manual), which then gets mounted at container volume mounthPath (/home/jenkins/agent/data).

我应该补充一点，即使我将群集yaml文件中的hostPath更改为不存在的文件夹，也会将空的数据"更改为文件夹仍然安装在容器中，所以我认为这是从本地群集到同类群集的连接.

I should add that even if I change the hostPath in the cluster yaml file to a non-existent folder, the empty "data" folder still gets mounted in the container, so I think it's the connection from my local to kind cluster that's the issue.

1. 为什么我没有得到/Users/xyz/documents/k8_automation/data/manual/的内容，并且容器中的/home/jenkins/agent/data也有很多文件?
2. 我该如何解决?
3. 如果没有解决办法，还有其他选择吗?

推荐答案

结果证明这些yaml配置很好.

Turns out these yaml configuration was just fine.

目录未显示在容器中的原因与docker设置有关.而且，由于种类是使用Docker容器节点"运行本地Kubernetes集群的工具"，因此很重要.

The reason the directory was not showing up in the container was related with docker settings. And because "kind is a tool for running local Kubernetes clusters using Docker container "nodes"", it matters.

似乎docker限制了资源共享，并且默认情况下仅允许将特定目录绑定安装到Docker容器中.添加特定目录后，我想将其显示在容器中的偏好设置"->目录"下的目录列表中.资源->文件共享，行之有效！

It seems docker restricts resource sharing and allows only specific directories to be bind mounted into Docker containers by default. Once I added the specific directory I wanted to show up in the container to the list of directories under Preferences -> Resources -> File sharing, it worked!

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