Rancher UI创建下游RKE2集群Deployment工作负载存储配置文件映射

Rancher 2.x RKE2
1

Rancher Server 设置

  • Rancher 版本：2.7.5
  • 安装选项 (Docker install/Helm Chart): Helm Chart)
    • 如果是 Helm Chart 安装，需要提供 Local 集群的类型（RKE1, RKE2, k3s, EKS, 等）和版本：
  • 在线或离线部署：RKE2

下游集群信息

  • Kubernetes 版本: v1.26.5+rke2r1
  • Cluster Type (Local/Downstream): Local

用户信息

  • 登录用户的角色是什么？ ：自定义管理员

主机操作系统：
Centos 7.9
问题描述：
在Rancher UI上管理下游RKE2集群创建Deployment工作负载时，因应用系统限制无法通过configMap环境变量导入方式实现，想要直接映射本地的配置文件application.yml至pod容器内的目录下，如docker中实现方式：docker run -v /data/application.yml:/data/run/application.yml。
请教是否有实现的方法？

2

使用configMap直接挂载yml配置文件步骤：
1、系统配置文件configMap创建：

image
image1638×636 12 KB

2、pod挂载存储

image
image1858×645 11.6 KB

3、容器挂载存储
image
image1879×616 11.8 KB

4、pod编排后报错
/install/time/application.yml (via /proc/self/fd/6), flags: 0x5001: not a directory: unknown)

CrashLoopBackOff (back-off 5m0s restarting failed container=container-0 pod=time-dev-6db99994fb-4bn5r_dev-information(73ad95a8-8834-41c1-88d3-94b025829d2d)) | Last state: Terminated with 128: StartError (failed to create containerd task: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: error during container init: error mounting "/var/lib/kubelet/pods/73ad95a8-8834-41c1-88d3-94b025829d2d/volumes/kubernetes.io~configmap/dev-time-config" to rootfs at "/install/time/application.yml": mount /var/lib/kubelet/pods/73ad95a8-8834-41c1-88d3-94b025829d2d/volumes/kubernetes.io~configmap/dev-time-config:/install/time/application.yml (via /proc/self/fd/6), flags: 0x5001: not a directory: unknown), started: Thu, Jan 1 1970 8:00:00 am, finished: Tue, Aug 22 2023 11:13:57 am
3

已通过mountPath和subPath的写法方式解决，如下图：

image
image1613×273 4.52 KB

yaml文件

spec:
  containers:
    - image: my-time-images
      imagePullPolicy: Always
      name: container-0
      securityContext:
        allowPrivilegeEscalation: false
        privileged: false
        readOnlyRootFilesystem: false
        runAsNonRoot: false
      terminationMessagePath: /dev/termination-log
      terminationMessagePolicy: File
      volumeMounts:
        - mountPath: /install/time/application.yml
          name: dev-time-config-application
          subPath: application.yml
1 个赞