Post-build actions in Jenkins - Step-by-Step Execution

Process Flow - Post-build actions

Build completes

↓

Check post-build actions configured?

No→End

Yes↓

Execute post-build action 1

↓

Execute post-build action 2

↓

All post-build actions done

↓

End

After the build finishes, Jenkins checks if any post-build actions are set and runs them one by one before ending the job.

Execution Sample

Jenkins

pipeline {
  agent any
  stages {
    stage('Build') {
      steps { echo 'Building...' }
    }
  }
  post {
    success { echo 'Build succeeded!' }
    failure { echo 'Build failed!' }
  }
}

This Jenkins pipeline runs a build stage and then runs post-build actions depending on success or failure.

Process Table

Step	Build Status	Post-build Action Checked	Action Executed	Output
1	Build running	No	None	Building...
2	Build succeeded	Yes	success block	Build succeeded!
3	Post-build actions complete	N/A	N/A	Job ends

💡 All configured post-build actions executed after build success, job ends

Status Tracker

Variable	Start	After Build	After Post-build	Final
buildStatus	null	running	succeeded	succeeded
postBuildAction	none	none	success block executed	success block executed

Key Moments - 2 Insights

Why does Jenkins run post-build actions only after the build finishes?

Because post-build actions depend on the build result, Jenkins waits until the build completes (see execution_table step 2) before running them.

What happens if no post-build actions are configured?

Jenkins skips post-build steps and ends the job immediately after the build (see concept_flow branch 'No').

Visual Quiz - 3 Questions

Look at the execution table, what is the build status at step 2?

A Build running

B Build failed

C Build succeeded

D Build not started

💡 Hint

Check the 'Build Status' column at step 2 in the execution_table

At which step does Jenkins execute the post-build success action?

A Step 2

B Step 3

C Step 1

D No post-build action executed

💡 Hint

Look at the 'Action Executed' column in the execution_table

If the build failed, which post-build action would run instead?

A success block

B failure block

C no action

D both success and failure blocks

💡 Hint

Refer to the pipeline code in execution_sample under 'post' section

Concept Snapshot

Post-build actions run after the build finishes.
They depend on build status (success, failure).
Configured in Jenkins pipeline 'post' section.
Executed sequentially before job ends.
If none configured, job ends after build.

Full Transcript

In Jenkins, post-build actions are steps that run after the main build completes. The flow starts with the build running. Once the build finishes, Jenkins checks if any post-build actions are configured. If yes, it executes them one by one depending on the build result, such as running a success message if the build succeeded or a failure message if it failed. If no post-build actions are set, Jenkins ends the job immediately after the build. The example pipeline shows a build stage followed by post-build actions that print messages based on success or failure. The execution table traces the build running, then post-build success action running, then job ending. Variables like buildStatus and postBuildAction change accordingly. Common confusions include why post-build actions wait for build completion and what happens if none are configured. The quiz tests understanding of build status at steps, when post-build actions run, and which actions run on failure. The snapshot summarizes that post-build actions run after build, depend on status, and are configured in the pipeline's post section.