[FIXED] Jenkins - Stop concurrent job with same parameter

Issue

I have a Jenkins job for a db rollback script that uses a choice parameter for each environment (using NodeLabel Parameter Plugin).

I want the jobs to able to be run concurrently, but only for different environments.

"Execute concurrent builds if necessary" is enabled.

E.g. If the job is running for LIVE, allow someone to run the job again for TEST (this works). However, if LIVE is already running and someone runs the job for LIVE again, then do not run.

This plugin seems to suit my needs but is not shown on the list of available plugins in Manage Jenkins.

https://wiki.jenkins-ci.org/display/JENKINS/Concurrent+Run+Blocker+Plugin

Are there any other ways around this?

Solution

There's a solution with existing Jenkins plugins:

• Create a Freestyle project named like Starter for concurrent builds exclusively on nodes.

• ☑ This build is parameterized

  • Node   [NodeLabel Parameter Plugin]
    • Name: NODE
  • Choice Parameter
    • Name: JOB
    • Choices: ... the jobs' names you'd like to start with this ...

• Build

  • Conditional step (single)   [Conditional BuildStep Plugin]
    • Run?: Not
      • !: Execute Shell
        • Command:

 

#!/bin/bash +x -e  
# Bash 4 needed for associative arrays

# From http://stackoverflow.com/questions/37678188/jenkins-stop-concurrent-job-with-same-parameter

echo '  Build --> Conditional step (single) --> Execute Shell'
echo "  Checking whether job '$JOB' runs on node '$NODE'"

echo '  Creating array'
declare -A computers

# ------------------------------------------------------------------------
# Declare your nodes and their executors here as mentioned, for instance,
# in the API URI 'http://<jenkins>/computer/(master)/executors/0/api/xml':
computers=(       #                          ^^^^^^            ^
  [master]="0 1 2 3"
  [slave]="0 1"
  )
# Note: Executor indices DO NOT conform to the numbers in Jenkins' 
#       Build Executor Status UI.
# ------------------------------------------------------------------------

echo "  Checking executors of node '$NODE'"
for computer in ${!computers[@]} ; do
  for executorIdx in ${computers[$computer]} ; do

    if [[ $computer == $NODE ]] ; then

      if [[ "$computer" == "master" ]] ; then
        node="(${computer})"
      else
        node=$computer
      fi
      url="${JENKINS_URL}/computer/${node}/executors/${executorIdx}/api/xml?tree=currentExecutable\[url\]"
      echo "    $url"

      xml=$(curl -s $url)
      #echo $computer, $executorIdx, $xml

      if [[ "$xml" == *"/job/${JOB}"* ]] ; then
        echo "    Job '$JOB' is already building on '$computer' executor index '$executorIdx'"
        echo '  Exiting with 1'
        exit 1
      fi
    fi
  done
done

echo '  Exiting with 0'

 

• Builder: Set the build result
  • Result: Aborted

 

• Conditional step (single)
  • Run?: Current build status
  • Builder: Trigger/call build on other projects
    • Build Triggers:
      • Projects to build: $JOB   [ignore the error message]
      • Node Label parameter
        • Name: NODE   [or how you call it in your downstream job(s)]
        • Node: $NODE

Answered By - Gerold Broser
Answer Checked By - Dawn Plyler (JavaFixing Volunteer)