https://github.com/nevercase/k8s-exec-pod

This is a simple and easy way for you to execute commands inside a k8s pod, watch logs through the websocket proxy and even download current or previous logs with a specific container name.
https://github.com/nevercase/k8s-exec-pod

k8s-client-go k8s-exec-pod k8s-logs-pod pod-log-download terminal websocket-proxy

Last synced: about 1 month ago
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This is a simple and easy way for you to execute commands inside a k8s pod, watch logs through the websocket proxy and even download current or previous logs with a specific container name.

• Host: GitHub
• URL: https://github.com/nevercase/k8s-exec-pod
• Owner: neverCase
• Created: 2020-09-09T10:03:02.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2023-05-05T02:28:54.000Z (over 1 year ago)
• Last Synced: 2024-06-19T05:41:10.939Z (7 months ago)
• Topics: k8s-client-go, k8s-exec-pod, k8s-logs-pod, pod-log-download, terminal, websocket-proxy
• Language: Go
• Homepage:
• Size: 135 KB
• Stars: 14
• Watchers: 2
• Forks: 4
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

        
# k8s-exec-pod

This is a simple and easy way for you to execute commands inside a k8s pod, watch logs through the websocket proxy and even download current or previous logs with specific container name.

## Notice

- A terminal is not just an input field. 

- It's a complex system that provides advanced formatting and interactivity with the user, over a plain character stream.

- Here is a classic case: if you transmit the command `clear` to the ssh pty, then the response you received would be "clear: command not found"

- So we should listen and compare `each character` instead of inputting a full command with the `\n` (e.g. `"pwd\n"`)

## build server

```sh

CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o exec-bin example/main.go

...

./exec-bin  -kubeconfig=$HOME/.kube/config --proxyservice=0.0.0.0:9090

```

- if you run the exec binary file inside a k8s pod, just use the command below:

```

./exec-bin --proxyservice=0.0.0.0:9090

```

## run websocket_client for testing

### log mode

```sh

go run websocket_client.go --addr=host:port --mode=log -alsologtostderr=true -v=4

```

### ssh mode

```sh

go run websocket_client.go --addr=host:port --mode=ssh -alsologtostderr=true -v=4

```