execute commands on remote host in a Jenkinsfile

Question

i am trying to ssh into a remote host and then execute certain commands on the remote host's shell. Following is my pipeline code.

pipeline {
    agent any
    environment {
        // comment added
         APPLICATION = 'app'
         ENVIRONMENT = 'dev'
         MAINTAINER_NAME = 'jenkins'
         MAINTAINER_EMAIL = 'jenkins@email.com'
    }
    stages {
         stage('clone repository') {
             steps {
                 // cloning repo
                 checkout scm
             }
         }
         stage('Build Image') {
             steps {
                 script {
                     sshagent(credentials : ['jenkins-pem']) {
                        sh "echo pwd"
                        sh 'ssh -t -t ubuntu@xx.xxx.xx.xx -o StrictHostKeyChecking=no'
                        sh "echo pwd"
                        sh 'sudo -i -u root'
                        sh 'cd /opt/docker/web'
                        sh 'echo pwd'
                    }
                 }
             }
         }
     }
}

But upon running this job it executes sh 'ssh -t -t ubuntu@xx.xxx.xx.xx -o StrictHostKeyChecking=no' successfully but it stops there and does not execute any further commands. I want to execute the commands that are written after ssh command inside the remote host's shell. any help is appreciated.

Jenkins executes sh and the returns. This means the ssh command is run to the remote, but the next echo pwd is run localy — Prikkeldraad, Mar 20 '19 at 12:10
@Prikkeldraad is there a way to run commands on remote shell in jenkinsfile? — Shoaib Iqbal, Mar 20 '19 at 12:12

score 9 · Answer 1 · answered Mar 20 '19 at 12:19

9

I would try something like this:

sshagent(credentials : ['jenkins-pem']) {
  sh "echo pwd"
  sh 'ssh -t -t ubuntu@xx.xxx.xx.xx -o StrictHostKeyChecking=no "echo pwd && sudo -i -u root && cd /opt/docker/web && echo pwd"'
}

answered Mar 20 '19 at 12:19

Prikkeldraad

1,347
9
14

1

thankyou for the answer but it is still not working. it is not even executing the ssh command. – Shoaib Iqbal Mar 20 '19 at 12:34
The answer that I was looking for, a solution that works. Thank you. – Tanino Aug 06 '21 at 18:14

score 9 · Answer 2 · answered Jun 21 '19 at 16:43

9

I resolve this issue

script 
{
    sh """ssh -tt login@host << EOF 
    your command
    exit
    EOF"""
}

answered Jun 21 '19 at 16:43

Alexey

91
1
2

score 2 · Answer 3 · answered Apr 07 '22 at 18:36

2

    stage("DEPLOY CONTAINER"){
        steps {
            script {
                    sh """
                    #!/bin/bash
                    sudo ssh -i /path/path/keyname.pem username@serverip << EOF
                    sudo bash /opt/filename.sh
                    exit 0
                    << EOF
                    """
                }
        }
    }

answered Apr 07 '22 at 18:36

vijay sanwal

21
2

what is the reason for #!/bin/bash before ssh command? and sudo ssh ? – syncerror Aug 15 '22 at 13:25
only this worked for me – Benjamin Ini Oct 03 '22 at 18:15

score 1 · Answer 4 · edited Sep 07 '22 at 05:37

There is a better way to run commands on remote using SSH. I know this is late answer but I just explored this thing so would like to share and this will help others to resolve this problem easily.

I just found this link helpful on how to run multiple commands on remote using SSH. Also we can run multiple commands conditionally as mentioned in above blog. By going through it, I found the syntax:

ssh username@hostname "command1; command2;commandN"

Now, how to run command inside remote hots using SSH in Jenkins pipeline?

Here is the solution:

pipeline {
  agent any
  environment {
    /*
     define your command in variable
     */
    remoteCommands =
      """java --version;
    java --version;
    java --version """
  }
  stages {
    stage('Login to remote host') {
      steps {
        sshagent(['ubnt-creds']) {
          /*
              Provide variable as argument in ssh command
          */
          sh 'ssh -tt username@hostanem $remoteCommands'
        }
      }
    }
  }
}

Firstly and optionally, you can define a variable that holds all commands separated by ;(semicolon) and then pass it as parameter in command.

Another way, you can also pass your commands directly to ssh command as

sh "ssh -tt username@hostanem 'command1;command2;commandN'"

I have used it in my code and it's working great! see the output here

Happy Learning :)

execute commands on remote host in a Jenkinsfile

4 Answers4