jenkinsfile send email notifications - jenkins

Hi I was trying to send email alert whenever there is a build failed for Jenkins
node ('abc') {
stage ('checkout'){
some codes inside
}
stage ('build'){
some code inside
}
stage ('test') {
some code inside
}
stage ('deploy'){
some code inside
}
post {
failure {
mail bcc: '', body: '''Hi,
The pipeline at Jenkins has failed. Pleas go over to the Jenkins and
check it out.
Thanks!''', cc: '', from: '', replyTo: '', subject: 'The pipeline has failed!', to: 'abc#gmail.com'
}
}
}
And I have error message of
java.lang.NoSuchMethodError: No such DSL method 'post' found among
steps

You can achieve this by doing try-catch-finally block.
node ('abc') {
try {
stage ('checkout'){
some codes inside
}
stage ('build'){
some code inside
}
stage ('test') {
some code inside
}
stage ('deploy'){
some code inside
}
stage ('notify'){
Notification for JOB Success
}
}catch(e){
Notification for JOB Failure
}finally{
}
}

See official Jenkins documentation:
https://jenkins.io/doc/pipeline/tour/running-multiple-steps/#finishing-up
(If you don't want to use declarative pipeline, see 'Toggle Scripted Pipeline' section).

Related

How would I store all failed stages of my declarative Jenkins pipeline

In my Jenkins pipeline, I have 15 stages. Now I have a post function at the end of the Jenkins file to send me an email about whether the whole process is failed or success. I would like to include all the stages that are failed in the email too. Using post in each stage is not a good idea, because I would receive 15 emails each time the job runs.
I am thinking of creating a list and save all failed env.STAGE_NAME in the list and print it at the end? But it would not allow me to do such a thing in the post.
I want to achieve something like:
pipeline {
agent { label 'master'}
stages {
stage('1') {
steps {
echo 'make fail'
}
}
stage('2') {
steps {
sh 'make fail'
}
}
...
stage('15') {
steps {
sh 'make fail'
}
}
}
post {
always {
echo 'ok'
}
failure {
"There are 3 stages have failed the test, which are: '1', '2' '15'"
}
}
}
How would I do it?

How to add email notification in jenkins if the build is failed

I need to add email notification in jenkins for both freestyle and pipeline job if the build is failed
reg. Email-ext plugin
In pipeline job you can use post build actions / try catch with proper step - ref. to mail
pipeline {
agent any
stages {
stage('Test') {
steps {
sh 'echo "Fail!"; exit 1'
}
}
}
post {
always {
echo 'This will always run'
}
success {
echo 'This will run only if successful'
}
failure {
echo 'This will run only if failed'
}
unstable {
echo 'This will run only if the run was marked as unstable'
}
changed {
echo 'This will run only if the state of the Pipeline has changed'
echo 'For example, if the Pipeline was previously failing but is now successful'
}
}
}
or try-catch (scripted way)
try{
//code to handle
} catch (e) {
emailext (
from: 'sender#domain.com',
to: 'recepient#domain.com',
subject: "job failed- ${env.JOB_NAME}, Build #${env.BUILD_NUMBER}, FAILED",
attachLog: true,
body: """
Foooooo text
For current build refer to: ${env.BUILD_URL}
job: ${env.JOB_NAME}
build number: #${env.BUILD_NUMBER}
With ERROR:
${e.message}
For full log refer to
${env.BUILD_URL}
"""
)
throw e
}
Post Build Actions > Email Notification
Part of the Mailer plugin.

Get error reason in Jenkinsfile failure

I have the following post failure section:
post {
failure {
mail subject: "\u2639 ${env.JOB_NAME} (${env.BUILD_NUMBER}) has failed",
body: """Build ${env.BUILD_URL} is failing!
|Somebody should do something about that""",
to: "devel#example.com",
replyTo: "devel#example.com",
from: 'jenkins#example.com'
}
}
I would like to include the reasons why the build failed in the body of the error message.
How can I do that?
If not, is there a way to attach the build log file to the email?
I don't know of a way to retrieve the failure reason automatically out of thin air.
However, you can use "post{ failure {" blocks in each phase to capture at least the phase in which it failed into a environment variable (e.g. env.FAILURE_REASON), and access that env var in the final (global scope) notification block.
For more granularity, you can reuse the same mechanism of the global env variable, but use try { } catch { } blocks to capture which specific step failed.
A generic example would be:
pipeline {
stages {
stage('Build') {
steps {
...
}
post {
failure {
script { env.FAILURE_STAGE = 'Build' }
}
}
}
stage('Deploy') {
steps {
...
}
post {
failure {
script { env.FAILURE_STAGE = 'Deploy' }
}
}
}
...
}
post {
failure {
mail subject: "\u2639 ${env.JOB_NAME} (${env.BUILD_NUMBER}) has failed",
body: """Build ${env.BUILD_URL} is failing in ${env.FAILURE_STAGE} stage!
|Somebody should do something about that""",
to: "devel#example.com",
replyTo: "devel#example.com",
from: 'jenkins#example.com'
}
}
}
Technically, you can even do some automated triage based on the failing stage and send a more targeted notification, or even create specific (e.g. Jira) tickets.
For attaching the console log to the email notification, you'd want to look at
emailext and the 'attachLog: true' attribute

Not receiving email notifications from pipeline runs

I am having problems receiving email notifications for a pipeline I have setup like so:
#!groovy
pipeline {
agent any
stages {
stage('Build Prep') {
steps {
sh '...'
}
}
stage('Build') {
steps {
sh '...'
}
}
stage('Tests') {
steps {
parallel (
"Jasmine": {
sh '...'
},
"Mocha": {
sh '...'
}
)
}
}
stage('Deploy') {
steps {
sh "..."
}
}
}
post {
success {
emailext to:"me#me.com", subject:"SUCCESS: ${currentBuild.fullDisplayName}", body: "Yay, we passed."
}
failure {
emailext to:"me#me.com", subject:"FAILURE: ${currentBuild.fullDisplayName}", body: "Boo, we failed."
}
unstable {
emailext to:"me#me.com", subject:"UNSTABLE: ${currentBuild.fullDisplayName}", body: "Huh, we're unstable."
}
changed {
emailext to:"me#me.com", subject:"CHANGED: ${currentBuild.fullDisplayName}", body: "Wow, our status changed!"
}
}
}
The build logs confirm an email is sent, but I dont get anything in my inbox, nothing in spam either.
I have come across this https://jenkins.io/blog/2016/07/18/pipline-notifications/
But I am unsure if I can use using the syntax I have, I don't have any nodes defined, should I?
Your script works fine. I did receive the email using the above code. Please check your other settings or if you had created a rule for Jenkins emails. You can make your code look easier by adding your notifications to the Jenkins shared library. Please take a look at the below link.
https://jenkins.io/doc/book/pipeline/shared-libraries/

Abort current build from pipeline in Jenkins

I have a Jenkins pipeline which has multiple stages, for example:
node("nodename") {
stage("Checkout") {
git ....
}
stage("Check Preconditions") {
...
if(!continueBuild) {
// What do I put here? currentBuild.xxx ?
}
}
stage("Do a lot of work") {
....
}
}
I want to be able to cancel (not fail) the build if certain preconditions are not met and there is no actual work to be done. How can I do this? I know the currentBuild variable is available, but I can't find the documentation for it.
You can mark the build as ABORTED, and then use the error step to cause the build to stop:
if (!continueBuild) {
currentBuild.result = 'ABORTED'
error('Stopping early…')
}
In the Stage View, this will show that the build stopped at this stage, but the build overall will be marked as aborted, rather than failed (see the grey icon for build #9):
After some testing I came up with the following solution:
def autoCancelled = false
try {
stage('checkout') {
...
if (your condition) {
autoCancelled = true
error('Aborting the build to prevent a loop.')
}
}
} catch (e) {
if (autoCancelled) {
currentBuild.result = 'ABORTED'
echo('Skipping mail notification')
// return here instead of throwing error to keep the build "green"
return
}
// normal error handling
throw e
}
This will result into following stage view:
failed stage
If you don't like the failed stage, you have to use return. But be aware you have to skip each stage or wrapper.
def autoCancelled = false
try {
stage('checkout') {
...
if (your condition) {
autoCancelled = true
return
}
}
if (autoCancelled) {
error('Aborting the build to prevent a loop.')
// return would be also possible but you have to be sure to quit all stages and wrapper properly
// return
}
} catch (e) {
if (autoCancelled) {
currentBuild.result = 'ABORTED'
echo('Skipping mail notification')
// return here instead of throwing error to keep the build "green"
return
}
// normal error handling
throw e
}
The result:
custom error as indicator
You can also use a custom message instead of a local variable:
final autoCancelledError = 'autoCancelled'
try {
stage('checkout') {
...
if (your condition) {
echo('Aborting the build to prevent a loop.')
error(autoCancelledError)
}
}
} catch (e) {
if (e.message == autoCancelledError) {
currentBuild.result = 'ABORTED'
echo('Skipping mail notification')
// return here instead of throwing error to keep the build "green"
return
}
// normal error handling
throw e
}
Following this documentation from Jenkins, you should be able to generate an error to stop the build and set the build result like this:
currentBuild.result = 'ABORTED'
Hope that helps.
The thing that we use is:
try {
input 'Do you want to abort?'
} catch (Exception err) {
currentBuild.result = 'ABORTED';
return;
}
The "return" at the end makes sure that no further code is executed.
I handled in a declarative way as shown below:
Based on catchError block it will execute post block.
If post result falls under failure category, the error block will be executed to stop upcoming stages like Production, PreProd etc.
pipeline {
agent any
stages {
stage('Build') {
steps {
catchError {
sh '/bin/bash path/To/Filename.sh'
}
}
post {
success {
echo 'Build stage successful'
}
failure {
echo 'Compile stage failed'
error('Build is aborted due to failure of build stage')
}
}
}
stage('Production') {
steps {
sh '/bin/bash path/To/Filename.sh'
}
}
}
}
Inspired by all the answers I have put all the stuff together into one Scripted Pipeline. Keep in mind this is not a Declarative Pipeline.
To get this example working you will need:
QuickFIX form this answer Jenkins CI Pipeline Scripts not permitted to use method groovy.lang.GroovyObject
discord notifier plugin - https://plugins.jenkins.io/discord-notifier/
Discord channel webhook url filled in the code
The idea I had was to abort the pipeline if it is "replayed" vs started by "run button"(in branches tab of Jenskins BlueOcean):
def isBuildAReplay() {
// https://stackoverflow.com/questions/51555910/how-to-know-inside-jenkinsfile-script-that-current-build-is-an-replay/52302879#52302879
def replyClassName = "org.jenkinsci.plugins.workflow.cps.replay.ReplayCause"
currentBuild.rawBuild.getCauses().any{ cause -> cause.toString().contains(replyClassName) }
}
node {
try {
stage('check replay') {
if (isBuildAReplay()) {
currentBuild.result = 'ABORTED'
error 'Biuld REPLAYED going to EXIT (please use RUN button)'
} else {
echo 'NOT replay'
}
}
stage('simple stage') {
echo 'hello from simple stage'
}
stage('error stage') {
//error 'hello from simple error'
}
stage('unstable stage') {
unstable 'hello from simple unstable'
}
stage('Notify sucess') {
//Handle SUCCESS|UNSTABLE
discordSend(description: "${currentBuild.currentResult}: Job ${env.JOB_NAME} \nBuild: ${env.BUILD_NUMBER} \nMore info at: \n${env.BUILD_URL}", footer: 'No-Code', unstable: true, link: env.BUILD_URL, result: "${currentBuild.currentResult}", title: "${JOB_NAME} << CLICK", webhookURL: 'https://discordapp.com/api/webhooks/')
}
} catch (e) {
echo 'This will run only if failed'
if(currentBuild.result == 'ABORTED'){
//Handle ABORTED
discordSend(description: "${currentBuild.currentResult}: Job ${env.JOB_NAME} \nBuild: ${env.BUILD_NUMBER} \nMore info at: \n${env.BUILD_URL}\n\nERROR.toString():\n"+e.toString()+"\nERROR.printStackTrace():\n"+e.printStackTrace()+" ", footer: 'No-Code', unstable: true, link: env.BUILD_URL, result: "ABORTED", title: "${JOB_NAME} << CLICK", webhookURL: 'https://discordapp.com/api/webhooks/')
throw e
}else{
//Handle FAILURE
discordSend(description: "${currentBuild.currentResult}: Job ${env.JOB_NAME} \nBuild: ${env.BUILD_NUMBER} \nMore info at: \n${env.BUILD_URL}\n\nERROR.toString():\n"+e.toString()+"\nERROR.printStackTrace():\n"+e.printStackTrace()+" ", footer: 'No-Code', link: env.BUILD_URL, result: "FAILURE", title: "${JOB_NAME} << CLICK", webhookURL: 'https://discordapp.com/api/webhooks/')
throw e
}
} finally {
echo 'I will always say Hello again!'
}
}
Main trick was the order of lines to achive abort state:
currentBuild.result = 'ABORTED'
error 'Biuld REPLAYED going to EXIT (please use RUN button)'
First set the state then throw an exception.
In the catch block both work:
currentBuild.result
currentBuild.currentResult
If you're able to approve the constructor for FlowInterruptedException, then you can do the following:
throw new FlowInterruptedException(Result.ABORTED, new UserInterruption(getCurrentUserId()))
You can add to your shared library repo a file var/abortError.groovy:
import org.jenkinsci.plugins.workflow.steps.FlowInterruptedException
import jenkins.model.CauseOfInterruption.UserInterruption
def call(message)
{
currentBuild.displayName = "#${env.BUILD_NUMBER} $message"
echo message
currentBuild.result = 'ABORTED'
throw new FlowInterruptedException(Result.ABORTED, new UserInterruption(env.BUILD_USER_ID))
}
Then you can use it this way (after importing library):
abortError("some message")
Note that if you se following error in console logs:
org.jenkinsci.plugins.scriptsecurity.sandbox.RejectedAccessException: Scripts not permitted to use new org.jenkinsci.plugins.workflow.steps.FlowInterruptedException hudson.model.Result jenkins.model.CauseOfInterruption[]
You need follow the link form log and approve security exception.
You can go to the script console of Jenkins and run the following to abort a hung / any Jenkins job build/run:
Jenkins .instance.getItemByFullName("JobName")
.getBuildByNumber(JobNumber)
.finish(hudson.model.Result.ABORTED, new java.io.IOException("Aborting build"));
This is the way to abort the currently running build pipeline in Jenkins UI(in Build History there is a cancel button), for capture:
The Executor.interrupt(Result) method is the cleanest, most direct way I could find to stop a build prematurely and choose the result.
script {
currentBuild.getRawBuild().getExecutor().interrupt(Result.ABORTED)
sleep(1) // Interrupt is not blocking and does not take effect immediately.
}
Pros:
Works in a declarative pipeline just as well as a scripted one.
No try/catch or exceptions to handle.
Marks the calling stage and any successive stages as green/passing in the UI.
Cons:
Requires a number of in-process script approvals, including one that is considered insecure. Approve and use with caution.
Taken from my answer on devops.stackexchange.com.
As for currentBuild, have a look at the docs for the RunWrapper class.

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