Run Jenkins slave agent in Docker
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Run the command to start your first agent
Remember to replace the tag [your-public-key] for your own SSH public key.
Your public key value in this example could be found by issuing : cat ~/.ssh/jenkins_agent_key.pub on the machine your created it. Do not add the square brackets [] around the key value
If your machine already has a ssh server running on the 22 port (if you logged onto this machine thanks to the ssh command, that’s the case), you should use another port for the docker command, such as -p 4444:22
Source: www.jenkins.io
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