[JIRA] [ssh-agent-plugin] (JENKINS-29810) Agent which can survive Jenkins restarts

[jgl...@cloudbees.com (JIRA)]

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Jesse Glick created an issue   Jenkins / JENKINS-29810 Agent which can survive Jenkins restarts Issue Type: New Feature Assignee: Unassigned Components: ssh-agent-plugin Created: 05/Aug/15 2:48 PM Labels: workflow Priority: Major Reporter: Jesse Glick As of JENKINS-28689 there is a Workflow step binding the agent. This survives Jenkins restarts in the common case: node { sshagent('...') { sh 'ssh user@host command' // restart Jenkins after connection made } } or node { sshagent('...') { sleep 999 // ← restart Jenkins here sh 'ssh user@host command' } } but in this case node { sshagent('...') { sh ''' sleep 999 # ← restart Jenkins here ssh ... ''' } } the shell script will be launched with one $SSH_AUTH_SOCK; then Jenkins will be restarted, killing the agent server; then after restart a new server will be started with a new socket address, defining a new $SSH_AUTH_SOCK for subsequent forked processes, yet the existing scripts continues to run and when ssh is launched it will fail to connect to the old server and die. The solution for this problem would be to reuse a socket address across restarts. Another even less common case would be node { sshagent('...') { sh ''' sleep 999 # ← restart Jenkins here ssh ... ''' } } where the request to use the private key happens to come while Jenkins is restarting. That can only be solved by forking an external process for the agent server so that it survives the loss of the slave agent. A related issue is that the current implementation will probably not survive a disconnection and reconnection of the slave agent with the Jenkins master still running, since it relies on onResume and lacks a ComputerListener. The forked agent approach would of course address that as well. Add Comment   This message was sent by Atlassian JIRA (v6.4.2#64017-sha1:e244265) -- You received this message because you are subscribed to the Google Groups "Jenkins Issues" group. To unsubscribe from this group and stop receiving emails from it, send an email to jenkinsci-issues+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.