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Debug your GitHub Actions via SSH by using tmate
I spend most of my time developing on the front ends that host on cloud environments. Most of these projects do not require me to ever inspect servers things as they just kind of work, which is nice.
From my understanding, tmate is a tool that provides instant terminal sharing. You're able to activate a secure shell or SSH to explore and run commands. I perform a lot of my debugging with action-tmate to access the hosted runner environments.
mxschmitt / action-tmate
Debug your GitHub Actions via SSH by using tmate to get access to the runner system itself.
Debug your GitHub Actions by using tmate
This GitHub Action offers you a direct way to interact with the host system on which the actual scripts (Actions) will run.
Features
- Debug your GitHub Actions by using SSH or Web shell
- Continue your Workflows afterwards
Supported Operating Systems
- Linux
- macOS
- Windows
Getting Started
By using this minimal example a tmate session will be created.
name: CIon: [push]jobs build runs-on: ubuntu-latest steps - uses: actions/checkout@v2 - name: Setup tmate session uses: mxschmitt/action-tmate@v3To get the connection string, just open the Checks tab in your Pull Request and scroll to the bottom. There you can connect either directly per SSH or via a web based terminal.
Without sudo
By default we run the commands using sudo. If you get sudo: not found you can use the parameter below to execute the commands
To do this, I paste the action directly into my workflows using the mxschmitt/action-tmate repo.
name: CIon: [push]jobs: build: runs-on: ubuntu-latest steps: - uses: actions/checkout@v2 - name: Setup tmate session uses: mxschmitt/action-tmate@v3It takes a few seconds for a tmate to provide the URL, but when it does, I can start navigating the environment.
In the gif, you can see the I have a fully running environment for me to test out.
So if you find yourself stuck and seeing some weirdness in your workflows, consider opening a tmate session and sharing with coworkers. Just keep in mind that you are running a live session that uses action minutes and has access to any used GITHUB_TOKENS.
This is part of my 28 days of Actions series. To get notified of more GitHub Action tips, follow the GitHub organization right here on Dev.
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Original Link: https://dev.to/github/debug-your-github-actions-via-ssh-by-using-tmate-1hd6
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