ssh-agent not starting on container based workflow

[shashank11p]

I am running a workflow on ubuntu-20.04 with container centos:7.

job-name:
    runs-on: ubuntu-20.04
    container:
      image: centos:7
    steps:
      - uses: webfactory/ssh-agent@v0.5.0
        with:
          ssh-private-key: |
            ${{ secrets.SSH_KEY }}
            ${{ secrets.SSH_KEY_2 }}

I get this error while starting the ssh-agent.

Adding GitHub.com keys to /root/.ssh/known_hosts
Starting ssh-agent
Error: spawnSync ssh-agent ENOENT

Can someone help me fix this?

[mpdude]

Your container does not have the SSH package (whatever it is named in CentOS, IDK) installed.

[mpdude]

I knew that answer because I ran into this myself...

Today, we added a new section in the README with known problems/tips. Feel free to add a PR with a notice for container based workflows if you like.

[mpdude]

Even better, would you know how to improve the code and print a helpful error message in this case?

[shashank11p]

Thanks @mpdude. I have created a PR for updating Readme. #66