将 MongoDB compass 客户端连接到 kubernetes 集群内的 mongodb 数据库答案

【问题标题】：Connect MongoDB compass client to the mongodb database inside kubernetes cluster将 MongoDB compass 客户端连接到 kubernetes 集群内的 mongodb 数据库
【发布时间】：2020-06-01 05:26:27
【问题描述】：

我在 kubernetes 集群中运行 mongo docker 容器服务。来自外部的传入流量通过 ingress-nginx (https://kubernetes.github.io/ingress-nginx/) 负载均衡器路由到 mongo docker 容器服务。

应用程序按预期工作，我需要知道是否有一种方法可以将 MongoDB compass 客户端（我安装在本地计算机上）连接到正在运行的 mongodb 容器以轻松可视化数据。

我遇到了一些问题，因为容器在 kubernetes 中，并且中间有一个负载均衡器。

如果有人可以提供帮助，将会有很大帮助。谢谢

【问题讨论】：

标签： mongodb kubernetes nginx-ingress mongodb-compass

【解决方案1】：

您可以使用port-forward

$ kubectl port-forward -h
Forward one or more local ports to a pod. This command requires the node to have 'socat' installed.

 Use resource type/name such as deployment/mydeployment to select a pod. Resource type defaults to 'pod' if omitted.

 If there are multiple pods matching the criteria, a pod will be selected automatically. The forwarding session ends
when the selected pod terminates, and rerun of the command is needed to resume forwarding.

Examples:
  # Listen on ports 5000 and 6000 locally, forwarding data to/from ports 5000 and 6000 in the pod
  kubectl port-forward pod/mypod 5000 6000

  # Listen on ports 5000 and 6000 locally, forwarding data to/from ports 5000 and 6000 in a pod selected by the
deployment
  kubectl port-forward deployment/mydeployment 5000 6000

  # Listen on ports 5000 and 6000 locally, forwarding data to/from ports 5000 and 6000 in a pod selected by the service
  kubectl port-forward service/myservice 5000 6000

  # Listen on port 8888 locally, forwarding to 5000 in the pod
  kubectl port-forward pod/mypod 8888:5000

  # Listen on port 8888 on all addresses, forwarding to 5000 in the pod
  kubectl port-forward --address 0.0.0.0 pod/mypod 8888:5000

  # Listen on port 8888 on localhost and selected IP, forwarding to 5000 in the pod
  kubectl port-forward --address localhost,10.19.21.23 pod/mypod 8888:5000

  # Listen on a random port locally, forwarding to 5000 in the pod
  kubectl port-forward pod/mypod :5000

Options:
      --address=[localhost]: Addresses to listen on (comma separated). Only accepts IP addresses or localhost as a
value. When localhost is supplied, kubectl will try to bind on both 127.0.0.1 and ::1 and will fail if neither of these
addresses are available to bind.
      --pod-running-timeout=1m0s: The length of time (like 5s, 2m, or 3h, higher than zero) to wait until at least one
pod is running

Usage:
  kubectl port-forward TYPE/NAME [options] [LOCAL_PORT:]REMOTE_PORT [...[LOCAL_PORT_N:]REMOTE_PORT_N]

Use "kubectl options" for a list of global command-line options (applies to all commands).

【讨论】：

您是否知道如何在 .yaml 文件中添加端口转发条目？？
抱歉没有得到这个问题。您能否进一步澄清一下要在哪个 .yaml 文件中添加的内容？您可以使用 containerPort 在部署容器上添加端口
apiVersion: v1 kind: Service metadata: name: mongo-srv spec: type: ClusterIP selector: app: auth-mongo ports: - name: auth-db protocol: TCP port: 27017 targetPort: 27017 @hoque：上面是创建 mongo-service 的代码，它放在 .YAML 文件中。想象一下，我需要进行端口转发，以便将 127.0.0.1:7000 流量路由到上面的 mongo-service。命令行工作正常。但我需要一种方法来使用 .YAML 文件来做同样的事情。