Jenkins pipeline parallel stages on different nodes. So the node is already selected by the time the dialog is shown. JENKINS-27394, if implemented, would display arbitrarily nested stage s. Short answer: it's better to start with declarative. Scripted pipelines use groovy threads to run parallel stages. Apr 27, 2016 · The Pipeline Stage View plugin will currently only display a linear list of stages, in the order they started, regardless of nesting structure. pipeline {. Sep 25, 2017 · Jenkinsfile. Sep 25, 2017 · For example, to run each parallel branch on a different agent, you need to use a node step, and if you do that, the output of the parallel branch won’t be available for post directives (at a stage or pipeline level). Something like this one: // Check if a slave has < 10 GB of free space, wipe out workspaces if it does. Share. You can copy the files to a directory you desire (Which you know the path, you can create a sub directory with the build ID for it to be unique) and access them from there. It should look like this in Blue Ocean, this is what you expect right? If you want to see the stages (and console output) in the classic view, you can use stage like this: Aug 23, 2017 · to Jenkins Users. jar/swarm. Blue Ocean will display top-level stages, plus parallel branches inside a top-level stage, but currently no more. Stages show up as columns in the Pipeline Stage view with average stage times and colours for the stage result. . jenkins-pipeline. If you are using declarative pipelines you have two options, first is to use static parallel stages which is an integral part of the declarative syntax but does not allow dynamic or runtime modifications. Mar 27, 2019 · EXPECTATION: I would like for jenkins to spin up two different pods for each of the parallel stages. This would allow me to use different databases for each of the tests. For example, if you have specific knowledge that a given process is going to be producing UTF-8 yet will be running on a node with a different system encoding (typically Windows, since every Linux distribution has defaulted to UTF-8 for a long time), you can ensure correct output by specifying: encoding: 'UTF-8' Feb 14, 2019 · The example shows how to trigger jobs on all Jenkins nodes from Pipeline. Every simple thing can be done in ten different ways, including parallelizing a build. this may be implemented in declarative in the future). Reuse object/property in different stages of a declerative pipeline in Jenkins. Mar 12, 2018 · These 3 parallel triggers will set some environment variables which will be used in further stages to modify the pipeline flow accordingly, depending on the type of trigger. My idea would be : Node A (Windows) Checkout scm. I am aware it can be done by mixing in the script block and I have don Nov 22, 2019 · In declarative pipelines, Jenkins allows the definition of parallel stages. def jobs = ["JobA", "JobB", "JobC"] def parallelStagesMap = jobs. you cannot wrap multiple stages inside a parallel step unless you use scripted (currently. "StageA": {. // Outputs a URL that you can follow in Blue Ocean and Classic View. Periodic cleanup of the workspace. collectEntries {. If any of the stage fails on any of the node then stages related to that node should fail and other nodes should continue their execution of the stages. As a result job B,C,D will run if A is successful. The second option (which is probably what you attempted) is to use the scripted parallel function: parallel firstBranch: {. May 4, 2021 · Jenkins Declarative Pipeline parallel stages. The global pipeline is not given an agent. you can use the "parallel" step in a declarative pipeline. }} and stage { node {. May 26, 2020 · Jenkins is an automation tool commonly used for software deployment. 2. May 24, 2018 · For parameters, I use two strings: one to indicate the list of test cases or VM management operations and another for the list of node names. The value passed to stage name has a syntax error, it is probably a typo. Configure each job to use the same 'Throttle Category' and then set "Maximum Concurrent Builds Per Node" to 1. xml" } } } } } } } See full list on baeldung. You could also use the command option to run slave. Moreover, in declarative pipeline all the nodes of all the stages get selected in the beginning. agent none //this tells the pipeline that it is not executed by 1 agent. 2) make the parallel branches independent options: - run in different folder - run in parallel external job fully isolated. 2, we added the ability to define stages to run in parallel as part of the Declarative syntax. Both of which support building continuous delivery pipelines. Each stage tries to checks out source and complains, for example, stage 2 complains that node Nov 20, 2018 · In this blog post, we examine the ‘parallel’ step provided by the Jenkins pipeline plugin and show how to use it correctly, along with some tips and tricks. Jun 14, 2017 · When using the Jenkins pipeline where each stage runs on a different agent, it is good practice to use agent none at the beginning: Jul 3, 2017 · If you don't want to switch to the scripted syntax, another option that should work: Build the jobs B,C,D in parallel in a second stage and move the the failure condition in the post section of your first stage. In my setup once execution switches from the master to an agent node it won't switch back unless all of the executors on the agent are in use and the May 20, 2023 · Each stage in the parallel stages is run on different agents (jenkins-agent-01, jenkins-agent-02,jenkins-agent-03,jenkins-agent-04). General need is to execute different stages into different nodes. I need a few stages (prepare, build, test, docs) executed on a couple of different docker containers (currently I just picked three standard Python containers). Sep 17, 2016 · 56. Every stage gets its own agent. host } steps {. I want the jobs to run simultaneously, when a node is free then a job that didn't run yet should run on it. These executions can be nested within each other and tend to have many branches. If you are willing to executed the generated stages to be executed into different nodes. agent { label "master"} stages {. script {. Put results into artifactory/s3/file storage. in such case above function can be modified to execute on different agent nodes as follows. I provisioned single node with the label "agent1", both stages were executed on the same node. Pipeline steps: Nov 27, 2017 · Parallel Execution. // We need to wrap what we return in a Groovy closure, or else it's invoked. Oct 27, 2019 · 1. They have little or no bearing on the stage flow graph and in generally not useful to visualise. Is it possible to checkout and execute the Jenkinsfile only on, say, the master node and run the pipeline as intended? Mar 7, 2019 · I'd like to run one stage parallel to two stages and all this after three other stages. util. agent { node { label 'labelName' } } behaves the same as agent { label 'labelName' }, but node allows for additional options (such as customWorkspace). That equals massive time savings! Improved Productivity – Getting more work done in less time helps you ship faster. When I provisioned one more node, stages were executed on different nodes. Can they also be run in parallel? Can this be done using parallel again? //List for all the tes May 21, 2018 · I have a pipeline with multiple stages, and I want to reuse a docker container between only "n" number of stages, rather than all of them: Jan 31, 2019 · I'd like to use parallel steps inside my pipeline, so I need to increase number of executors. I would like to know how I can dynamically create parallel executing stages. // other stages steps {. I am trying to create a pipeline in Jenkins which triggers same job multiple times in different node (agents). 5) and Scripted Pipeline. :) i think this is your pipeline, but with Feb 12, 2023 · In order to achieve running stages in parallel in declarative Jenkins pipeline dynamically, you can implement this pattern: stages {. If there is a parent stage, it shows as the parent of the parallel stages. By design (in Jenkins, as well as in the concept of continuous delivery), stages do not execute in parallel. sh" } post { always { junit "**/TEST-*. First, let's note that Pipeline has the concept of a "node" which is Jenkins' way of selecting where a build can run. The docker agents have a usefull option telling reuseNode to keep using the same node/workspace. ) and let all combinations run in parallel. Summary: * The script uses NodeLabel Parameter plugin to pass the job name to the payload job. I have this test pipeline code, it runs 2 build on different nodes on build_servers as expected. Jan 24, 2021 · I created a test pipeline to understand how the parallel feature works with Jenkins. Share Improve this answer Jun 7, 2017 · I was able to combine the parallel with node but only in a single stage and got this far (see below) I want to be able to break it apart into multiple stages. * Node list retrieval is being performed using Jenkins API, so it will require script approvals in the Sandbox mode To see this example from jenkins. @Library (‘jenkins-shared-lib’)_. Liam Newman November 22, 2019 Tweet. How to trigger stages dynamically with different agents? Below is the Jenkinsfile which contains both stages which need to be run dynamically and also sequentially. Dec 16, 2018 · We can use Jenkins Pipeline to run a few stages at the same time and thanks to that parallelize test suite across a few stages to complete tests faster. agent none. Then on the second build node: Unstash the file. io: Declarative and Scripted Pipelines are constructed fundamentally differently. ps: if you are reading this you probably have just started using Jenkins pipeline and you are not sure if you should use declarative or scripted pipeline. Both may be used to define a Pipeline in either the web UI or with a Jenkinsfile, though it’s generally considered a best practice to create a Jenkinsfile and check the file into the source control repository. In Declarative 1. Code integrated quicker, bugs caught earlier. Can anybody help me in specifying how to choose which stage are run on which nodes. Checkout the repository using the changelist value. txt) Stash the saved file. The (simplified) script is as follows : Apr 16, 2020 · I have a Jenkins pipeline that runs on docker agents and everytime it enters a stage with a different agent it changes Jenkins node. Yes you can. g. You can specify a global agent but you must keep in mind that for each underlying agent directive a new workspace will be used. Currently, the pipeline executes first on one node and then on the next. Here is my Sep 17, 2015 · Great if you can run different parts of your test suite together, or run some IO tests at the same time as other tests. The API built-it Declarative Pipeline is not available (like agent). What I did is that I gave a label to each node and on the jobs I set to run on label. 4. pipeline { agent none stages { stage('Run Tests') { parallel { stage('Test On Windows') { agent { label "windows" } steps { bat "run-tests. 2: The parameter in agent/node allows for any valid Jenkins label expression. The way to do that are sequential stages in parallel. But you has to store builds in external storage. node. I want to be sure that stage C starts first, because then the total execution time will be 4 hrs. 204. e. When I run the script and check the pipeline in BlueOcean, that sequence of stages is represented as one single node. Jun 8, 2019 · jenkins pipeline using different nodes for different stages. From jenkins. docker. 3: unstash will retrieve the named "stash" from the Jenkins controller into the Pipeline’s current Next, add “Deliver for development” and “Deploy for production” stages to your Pipeline, which Jenkins will selectively execute based on the branch that Jenkins is building from. Jan 16, 2018 · I am trying to run the 'Build' stage on Ubuntu and Red Hat nodes in parallel, and the 'Test' stage on the Ubuntu node only. 2) declarative pipeline to run parallel stages generated into a map on different machines. Instead of me clicking 10 times, I want to create a Sep 1, 2021 · I want to run a series of tests on multiple platforms (AIX, pi, macOS, Windows, Linux). I found few solutions online but they recommended rewriting the build stage twice: once for the Red Hat node and the other for the Ubuntu Mar 5, 2019 · 3. You can stash the files in the initial stages then unstash them and use them in the latter stages. Let's say we have 3 stages defined and only two nodes available. Jun 4, 2018 · I am doing parallel steps as - stages { stage ('Parallel build LEVEL 1 - A,B,C ') { steps{ parallel ( "Build A": { node(' Once the Pipeline has completed its execution, stashed files are deleted from the Jenkins controller. A node is often a remote machine, but could be the local Dec 27, 2023 · Key Benefits: Faster Execution – Studies show parallel stages can reduce total pipeline run time by 50-75% for suitable workloads [1]. The parent stage that contains parallel doesn't include the timing for all the parallel stages, but each parallel stage shows up in stage view. Here you can see the code: node ('docker-slave') { stage('Source') { sh 'echo Feb 22, 2018 · To add more to answer from Micah, Instead of repeating stage with different labels, you can define a function which can create a stage for you and will be executing the generate stage on different agent nodes of your choice. Jan 21, 2022 · Dynamic parallel stages could be created only by using Scripted Pipelines. Quite nice scenario. 6 Apr 22, 2018 · In a declarative pipeline parallel block, it is possible to specify multiple stages to execute in parallel on agents with the same node. To have a node, it parses your pipeline. Check out my example below: you will see that all three parallel stages finish at the same time after waking up from the sleep command. Most of the code inside the jenkins stages is Then each stage shows up in the Stage view. There are 2 Windows nodes "windows-slave1" and "windows-slave2" both labeled with the label "windows". In fact, you can free your master from running pipelines at all: If later on you decide you don't want to assign a single node to all stages you'll have to use scripted pipeline inside the declarative pipeline to group stages that should run on the same node: agent { label params. How can I force it to run always on the same node? I have 3 nodes: master, slave-1 and slave-2. Skip stages in Declarative . Consult the Pipeline Syntax Reference Guide for more details. then re-use in main job. Pipeline supports two syntaxes, Declarative (introduced in Pipeline 2. io please visit : Trigger Note that all generated stages will be executed into 1 node. stages {. Note that all generated stages will be executed into 1 node. 0. FileCallable; Nov 23, 2016 · I currently have the stages running in parallel, but how about the tests inside of those stages. Apr 6, 2016 · To do this, create a new node in Jenkins, for example an SSH node that connects to localhost. jenkins-blueocean. Example 1: Using "agent none", 2 stages use the some workspace. steps {. Read the changelist value out of the file to a variable. CI/CD Collective. I often find myself needing to run the same actions on a bunch of different configurations. agent any. If A is not successful only job B will run. Step 4: Click on the Save button & Click on Build Now from the left side menu. html')) {. it is very hard to read code that is not indented. This article is going to take the parallel stages directive in Jenkins, and extend its flexibility wherever it’s lacking. stage (‘initialize’) {. }} within your pipeline codes. ] pipeline {. in downstream job in agent section you can use: agent { label "$ {params. based on the value returned by a 3rd-party service), so I prepared two solutions: May 10, 2022 · I have a Jenkins pipeline running two tests in parallel on two nodes, something like: pipeline { agent { label 'MASTER' } stages { stage('x86 and Arm tests') { Jun 10, 2021 · Step 2: Enter Jenkins job name & choose the style as Pipeline & click OK. Install the Throttle Concurrent Builds plugin. A custom script will be written. I have "Create_Invoice" job Jenkins, configured : (Execute Concurrent builds if necessary) If I click on Build 10 times it will run 10 times in different (available) agents/nodes. Aug 10, 2019 · Introduction In the previous post, we focused on setting up declarative Jenkins pipelines with emphasis on parametrizing builds and using environment variables across pipeline stages. The end result is that each stage is actually an independent job, and the plugin won May 30, 2017 · 9. Jenkins supports parallel execution using the parallel step. The fact is - when I try and build the job - the Jenkinsfile gets checked out on every node. Run same stages in parallel on different nodes with Jenkins pipeline Hot Network Questions Why does the cross section of a metal after a hypervelocity impact look like that? May 20, 2023 · Below is the Jenkinsfile which contains both stages which need to be run dynamically and also sequentially. UnitTest: Build and run unit tests. This takes the "Pipeline-as-Code" concept to a new level, in which a single Jenkinsfile describes your project’s entire build, test, delivery and deployment Jun 24, 2020 · To run a pipeline, Jenkins needs a node. In my Jenkinsfile I execute 2 stages in parallel and one of these stages would consist of few other sequential stages. *; import hudson. 'Use this node as much as possible' or 'Only build jobs with labels'). Most of the code inside the jenkins stages is same except for agent name and function name and I would like to employ DRY. Step 3: Scroll down to the Pipeline section & copy-paste your first Declarative style Pipeline code from below to the script textbox. Aug 26, 2020 · I'm not sure this is default behavior of Jenkins. Build in progress. This is just a minimal example to show the problem. Distributed parallel with many build servers. Jun 27, 2021 · Dynamic parallel stages could be created only by using Scripted Pipelines. Mar 7, 2017 · More in the Jenkins Pipeline reference guide. In order to run parallel stages with Jenkins Pipeline, we will need a proper Jenkinsfile which represents our delivery pipeline as code via the Pipeline domain-specific language (DSL) syntax. Stage A: 2 hrs Stage B: 2 hrs Stage C: 4 hrs . Apr 3, 2024 · Our job is very long (4 hours on 8 nodes in parallel), and sometimes a node may become offline or in maintenance for some reasons. Every agent get its own label ('jenkinsagent1' and 'jenkinsagent2' in the example below). Run multiple stages of a declarative Jenkins pipeline on the same node. Feb 23, 2021 · 3. // do something. May 14, 2021 · steps {. What is the best way to prevent concurrent job execution? Such configuration was trivial with Jenkins freestyle job and Throttling plugin - I simple used "Maximum Concurrent Builds Per Node". parallel buildResults = [] // Common code to trigger a downstream job. Release / Debug configurations; different CMake parameters; etc. Oct 21, 2019 · I have 3 build jobs which run in parallel in a declarative jenkinsfile. devops. For example, it can create stages dynamically. I need them it to execute on all nodes simultaneously. pipeline { agent { label 'myserver' } stages { stage('1') { steps { Nov 11, 2023 · Abdul Wahab Junaid. *; import jenkins. When I needed to make changes, I had to make the same changes in multiple places throughout my pipeline. Mar 29, 2017 · If not then the node that the next stage runs on will be affected by things like the Usage setting for your nodes (i. Execute the Pipeline, or stage, with the given container which will be dynamically provisioned on a node pre-configured to accept Docker-based Pipelines, or on a node matching the optionally defined label parameter. Give the node one executor and a label like "resource-foo", and give your job this label as well. NODE_NAME}" } (meanwhile did not found how to inject parameters of upstream job to the downstream without actually insert them one by one as input parameters) Jul 19, 2018 · On the first build node: Save the changeset to a file (p4_changelist. Now in Declarative 1. Feb 27, 2017 · I am new in Jenkins and looking for an easy solution: I have about 10 jobs and about 4 nodes and would like to run all the jobs on different nodes. stage is a syntax block that describes a stage of this Pipeline. echo "This is branch b". model. I have three parallel stages each assumes files produced in previous stage is present in the directory. Common pitfalls when running parallel stages will be discussed in this article. def tests = [:] for (f in findFiles(glob: '**/html/*. In blue ocean, the parallel stages appear separately instead of the stages showing. Nov 22, 2019 · Welcome to the Matrix. However, I'm stuck in building a pipeline that Nov 8, 2021 · Advanced Jenkins Parallel Builds (And Jenkins Distributed Builds) Jenkins is a great CI tool when it comes to flexibility. // when this method is called, not when we pass it to parallel. I'm trying to move existing Jenkins build jobs to a single Jenkins 2 pipelines, and wondering if it's possible to copy files from one node to another within the build. I don't see any information that you really need dynamic stages (e. Jul 11, 2018 · 1. The API built-it Declarative Pipeline is not available (like agent, options, when etc. stage('Is parallel executed on 2 agents') {. In this pipeline I want various stages not executed by only one but multiple nodes (later stages, which are node specific, depend on these). xml" } } } stage('Test On Linux') { agent { label "linux" } steps { sh "run-tests. def performTriggerJob(String jobID) {. echo "This is branch a". pipeline { agent any stages { stage (& Mar 8, 2021 · I wanted to host this pipeline on a Jenkinsfile on GitHub, so I configured the job to work with a "Pipeline script from SCM". NOTE: My real Jenkinsfile cannot use a global agent because there are groups of stages that require to run Nov 22, 2019 · 4. Feb 2, 2023 · 1. You give a name or a label, and Jenkins runs the block there. Nov 20, 2018 · The pipeline should start and, depending on your machine, finish in a timeframe from 30 seconds to 120 seconds. Jul 2, 2017 · Goal. Archive artifact (or whatever required action) Node B (Unix) Checkout scm. Here is the documentation. jar depending on your setup. The issue is the workspace which Jenkins refers for each stage, agent is Declarative Pipeline-specific syntax that instructs Jenkins to allocate an executor (on a node) and workspace for the entire Pipeline. Up to now, that meant I had to make multiple copies of the same stages in my pipelines. Nov 28, 2017 · Re-factor each Stage into its own independent job. Related questions. pipeline{. 6. stage structures your script into a high-level sequence. Feb 13, 2018 · The Solution #1. please indent your code. FilePath. This is the pin argument in the perforce populate list. The goal is to dynamically build a configuration matrix (e. 8 jenkins pipeline using different nodes for different stages. 3, we’ve added another way to specify stages nested within other stages, which we’re calling "sequential stages". To run parallel stages, an array of stage objects has to be created and passed as an argument to parallel keyword. The concepts of node, stage and step are different: node specifies where something shall happen. Only the steps within a single stage are executed in parallel. import hudson. sh "echo 1". I tried using parallel and it can't co-exist with the for loops. Jul 10, 2018 · I would like to execute pipeline stages on multiple nodes simultaneously. If it seems to hang after the first stage, check if your slave Aug 14, 2017 · I have a declarative pipeline. Jun 8, 2016 · 25. Setup. I want to run parallel stages on different nodes: if first stage took an executor, second stage should be executed on another fresh node with label "agent1". ). 58. So, you can't run dynamic stages in parallel on different agents. provide a downstream job with $ {NODE_NAME} as additional parameter. Execute ant build. Few ways to do this. com Sure, but that way you cannot generate the parallel tasks dynamically, for example, depending on some files on the repository. I run yarn install in stage 1 and yarn build in stage 2 and in stage 3 I have yarn package. Parallel execution is used to speed up the execution of the pipeline by having different parts run in parallel. Run same stages in parallel on different nodes with Jenkins pipeline. Bob : 42, Alice: 54, Max : 33. Jun 11, 2017 · You can also mix and match node { stage {. tests["${f}"] = {. Oct 21, 2022 · I am trying to get a Jenkins (2. Mar 23, 2018 · You don't need steps inside a dynamic stage (probably because it is in script block, which means it is no longer declarative). }, "StageB": {. ACTUAL RESULT: Jenkins runs both stages concurrently on the same pod. November 11, 2023. Have each stage invoke that job with the build step. pipeline { agent Oct 23, 2017 · It is possible to use scripted pipeline syntax in a declarative pipeline by wrapping it with a script {} block. Obviously that level can be executed in parallel. They run in the same node and need to use the same workspace. Basically the old parallel step required you to use Scripted Pipeline within a Declarative Pipeline. In this post, we look at various tips that can be useful when automating R application testing and continuous integration, with regards to orchestrating parallelization, combining sources from multiple git Mar 16, 2022 · From what can be seen, Jenkins allocates two separate workspaces ( test_pipeline, test_pipeline@2) for two parallel stages if they run on the same node at the same time. easy to track fully isolated, separated log. I have a small example of a Jenkins declarative pipeline that should run on both 'Windows' and 'Linux' agents in parallel. May 8, 2020 · Depending on which plugins you're using for visualization having parallel stages can make the rendering order of stages unreliable and force constant stage redraws. TestApp: Build and run test applications w/ artifacts. Here’s how you can implement parallel execution in a Jenkins pipeline: Aug 13, 2019 · Try this syntax for scripted pipeline: parallel(. It further allows scripted pipeline general purpose scripts to create and manipulate the artifacts of the declarative pipeline. Feb 1, 2019 · First you need 2 agents. In this case, I have 2 scenarios: nodesByLabel with offline: false: if a node is offline before job starts, and become online after, generatePrepareStage will not be executed so all later tests maybe not correctly setup Oct 1, 2021 · Jenkins - restart only failed stage in parallel 1 Way to run an entire Jenkins pipeline, start to finish, inside a Docker container? Apr 12, 2018 · So I spent the whole day trying to figure out how to configure a simple Jenkins Pipeline with multiple Docker images and I am not happy at all. jenkins. In declarative pipelines, Jenkins allows the definition of parallel stages. bat" } post { always { junit "**/TEST-*. Jul 17, 2020 · I have a jenkins pipeline which has two stage, two stage need clone code from code and parallel run different agent, how to share code in the stages? stages { parallel("a": node(' Oct 25, 2021 · 0. stage('1') {. Jul 2, 2018 · Sequential Stages. def agents = ['master', 'agent1', 'agent2'] // enter valid agent name in array. Jan 23, 2020 · Answer - yes affect. Stages I would like to create are : Build: Build the library/project w/ artifacts. Oct 27, 2020 · Creating multiple stages with parallel execution on nodes. Here is the code that works the way the OP wants: def map = [. Implementing parallel execution in Jenkins pipelines allows you to run multiple tasks concurrently, which can significantly reduce build times. fe tw hu vf oj qw we qy pk fp