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  1. Jenkins
  2. JENKINS-59491

SSH slaves plugin support for proxy/ bastion/ jumpbox

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      I have a Jenkins Master running on serverA in vpcA.

      I have a server serverB that leaves in vpcB that I would like to register as a Jenkins slave.

      I have a jumpbox serverC that is accessible from anywhere.

      I can connect from serverA to serverB if I proxy through serverC first.

      I can connect with no problems with an ssh config file on the master similar to:
       

      Host slave
        User andrei
        ProxyCommand ssh andrei@gateway nc %h %p
      

      I would like to be able to connect serverB as a slave of Jenkins (serverA).
      I looked into launching the agent via execution of command on the slave, but that requires the agent.jar to be placed there - is there another way of doing this? Surely if connection from the master to the slave is possible, this could be done automatically, perhaps as part of this plugin?
       

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            This is mostly an infrastructure thing, you can create a tunnel with ssh from the master to the agent through the bastion host, then you can use the local port of the tunnel to connect to the agent, see https://www.ssh.com/ssh/tunneling/example or https://www.tecmint.com/create-ssh-tunneling-port-forwarding-in-linux/

            ifernandezcalvo Ivan Fernandez Calvo added a comment - This is mostly an infrastructure thing, you can create a tunnel with ssh from the master to the agent through the bastion host, then you can use the local port of the tunnel to connect to the agent, see https://www.ssh.com/ssh/tunneling/example or https://www.tecmint.com/create-ssh-tunneling-port-forwarding-in-linux/
            ifernandezcalvo Ivan Fernandez Calvo added a comment - it is duplicated https://issues.jenkins.io/browse/JENKINS-56485

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              ifernandezcalvo Ivan Fernandez Calvo
              andreimuresianu Andrei Muresianu
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