Jenkins pipeline agent label. e. Oct 21, 2023 ·...
Jenkins pipeline agent label. e. Oct 21, 2023 · Jenkins Agent Labeling: Best Practices & Top Labels Explained In the world of Continuous Integration and Continuous Deployment (CI/CD), Jenkins stands tall as a robust and versatile automation server. An agent can use any operating system that supports Java. At the end of this stage I will know on which agent Using Labels This is useful for when you want to specify a particular machine size, or requirement. I have added agent any in the beginning, but I also tried to add label into my agent at beginning of my script, as much as, inside of each stage, which it didn’t work. Use agent { label 'windows' } to specify that you want your build to run on an agent that has been labelled as windows. pipeline { // Possible agent configurations - you must have one and only one at the top level. The agent section specifies where the entire Pipeline, or a specific stage, will execute in the Jenkins environment depending on where the agent section is placed. 2, we’ve added official support for defining pipeline blocks in src/. It's decided--for some reason unrelated to your pipeline snippet--to always use the master agent. The label parameter can be null, which is equivalent to not specifying any label constraint. Would that be possible in JTE? I have a Jenkins pipeline that I'd like to run on either a params-specified agent or master. Environment variables may also be set by Jenkins plugins. If you are running a Pipeline job, you first want to add a label (e. Declarative Pipeline syntax ofers a simple, predefined hierarchy to make the creation of pipelines and the associated Understanding the syntax of Jenkins Pipeline allows you to automate your CI/CD workflows efficiently. Started by user admin Running in Durability level: MAX_SURVIVABILITY [Pipeline] node Still waiting to schedule task There are no nodes with the label ‘label1&&label2’ I know that i could temportailiy fix this by creating a 3rd label label1-2 and associate it with agent in the pipeline. g if the branch is develop I want to use slave1 node and if the branch is production I want to use master Any Help will be appreciable. Agents can run Pipeline steps, freestyle jobs, and other jobs. If you make this label '' then it will run on any agent connected to your Jenkins master that is available. Jenkins pipeline中agent部分详解：通过any、label指定执行节点，支持多标签筛选（如'windows && jdk8'）和自定义工作目录（customWorkspace）。顶层必选，阶段可选，灵活控制任务分发。 Declarative Pipeline Quick Reference Jenkins Pipeline enables users to build complete continuous delivery (CD) pipelines as part of their application code. node agent { node { label 'labelName' } } behaves the same as agent { label 'labelName' }, but node allows for additional options (such as customWorkspace). The goal was to automate the entire delivery lifecycle: Clone code from GitHub Build a Docker image pipeline { agent {label "swarm"} options { ansiColor ('xterm') } parameters { choice (choices: ['Individual Resources','projects and Folders', 'Global - IAM Roles', 'Project - IAM Roles and Group', 'vault - SA'], description: 'How do you want to bootstraps?', name: 'bootstrap') choice (choices: ['prod','dev'], description: 'Select the As an alternative to the Black Duck Security Scan Plugin plugin, the Bridge CLI can be downloaded and directly executed in a Jenkins pipeline. While agent and node are used to define where and how the stages of pipelines are executed in Jenkins. Now we want to gradually move Jenkins to Kubernetes, without forcing Expressions can be written without whitespace, but including it is recommended for readability; Jenkins will ignore whitespace when evaluating expressions. 定义执行环境 在 上一小节 您可能已经注意到每个示例中的 agent 指令。 agent 指令告诉Jenkins在哪里以及如何执行Pipeline或者Pipeline子集。 正如您所预料的，所有的Pipeline都需要 agent 指令。 在执行引擎中， agent 指令会引起以下操作的执行： 本文深入解析Jenkins Pipeline的Declarative模式，包括语法特点、基本结构和agent指令的多种参数用法，如any、none、label和node，帮助读者掌握高效配置Jenkins自动构建流程的方法。 这篇开始跟着官网Pipeline文章来具体学习Pipeline语法知识。 The agent directive specifies where the entire Pipeline, or a specific stage, will execute in the Jenkins environment depending on where the agent directive is placed. The documentation is clear about how the built in syntax works: Greetings community! I have a declarative pipeline where I’m trying to run Jenkinsfile script for all agents with a specific label. An empty expression will always evaluate to true, matching all agents. Agent concepts Jenkins agents provide executors that perform work when requested by the Jenkins controller. If you are using something like CloudBees free DevOptics tool it can help you see where you need more capacity agent wise. Examples master Hello I would like to implement in jenkins pipeline method to select agent type like docker, dockerfile, kubernetes, label, none in the nutshell if ( $TESTS == “Bitbucket”) { agent { kubernetes { yamlFile ‘rc/confi… 1. 本文详细介绍了Jenkins2 Pipeline中agent的使用，包括agent的基本概念、标签使用、不同参数详解以及在实际场景中的应用，帮助用户更好地理解和运用agent实现持续集成和持续交付。 New issue New issue Closed Closed How to Specify an agent (label) for entire pipeline to execute, Specify container for a build Step in JTE #137 I configured the Jenkins server with my repo and I installed all the suggestd plggins + docker pipeline plugin. run build stage in a specific environ by overriding agent in that stage: Learn how to label multiple Jenkins agents with a single command using the Jenkins CLI. Starting with basic examples and progressing to more complex scenarios, this cheat sheet provides a solid foundation for using Jenkins Pipeline effectively. At the moment it just takes arbitrarily an agent and run the Jenkinsfile script against it Pipeline provides a global option on the Manage Jenkins page and on the Folder level, for specifying which agents (by Label) to use for running Docker-based Pipelines. Hi all. We have now dynamically allocated nodes only for PLATFORM ‘linux’, and these need to agent any 告诉 Jenkins master 任意可用的agent都可以执行 agent 必须放在pipeline的顶层定义或stage中可选定义，放在stage中就是不同阶段使用不同的agent 通过标签指定 agent，比如某项目需要在JDK8中环境中构建 With these pipelines, understanding the difference between an agent and a node is important for effective pipeline configuration and execution. At the moment it just takes arbitrarily an agent and run the Jenkinsfile script against it But with 1. Agents Agents manage the task execution on behalf of the Jenkins controller by using executors. As you might expect, the agent is required for all Pipelines. agent} || master&qu // This is the full syntax for Jenkins Declarative Pipelines as of version 0. First you can scale easier. Specific capabilities of agents are often noted by assigning labels to the agents. It is not working for any of the jobs with label "devbuild" or "installernode" Even I tried with ; but same issue. The pipeline code that implements this is: pipeline { agent { label "${params. Matching labels or agent names with wildcards or regular expressions is not supported. This means Jenkins will allocate an executor wherever one is available, regardless of how it is labeled or configured. Thanks in Advance. If you find yourself in a situation where you have a Jenkins setup composed of the controller and one or more agents, you will notice that the agents will be used for building the jobs — which You're telling Jenkins to run the build on either an agent with the deploy label or something with the master label. Jenkins – an open source automation server which enables developers around the world to reliably build, test, and deploy their software What is the difference between an agent and a node in a jenkins pipeline? I've found those definitions: Node: A Pipeline performs most of the work in the context of one or more declared node steps. Label assignments of various project types, both on the top level (e. In a Jenkins declarative pipeline, how can I set the agent label for dynamically created parallel stages Asked 1 year ago Modified 1 year ago Viewed 70 times I want a variable I can set to be "any" or a specific label. I have a scenario where I have multiple nodes with the same label, and I want to know whether Jenkins will try to use the same agent throughout the pipeline for the same job. I have two agents: agent {label 'agentwindows'} agent {label 'agentLinux'} I want to have an if based on the My Jenkinsfile uses the matrix job plugin with PLATFORM being one of the axes and it has three values ‘linux’, ‘windows’ and ‘macOS’. I have a number of build agents hooked up to my Jenkins and would like for this specific pipeline to be able to be built by various agents that have different labels (but not by ALL agents). 'slave') to the slave node (or agent as it seems to be called now). Article for Jenkins Declarative Pipeline Examples Tutorial for beginners with example for each and every topics of Declarative Pipeline. The section must be defined at the top-level inside the pipeline block, but stage-level usage is optional. Please suggest how to apply multiple labels to single node. If not specified, this value defaults to 5. after that, I created a Jenkinsfile that uses docker agent to run the stages inside a python docker container but I'm getting "‘Jenkins’ doesn’t have label ‘docker’" in the console output. These Jenkinsfiles are merged into customer projects, and they use their own values for this env property, matching their Jenkins infrastructure. MissingPropertyException: No such property: agentName for class: groovy. 本文详细介绍了Jenkins2 Pipeline中agent的使用，包括agent的基本概念、标签使用、不同参数详解以及在实际场景中的应用，帮助用户更好地理解和运用agent实现持续集成和持续交付。 Greetings community! I have a declarative pipeline where I’m trying to run Jenkinsfile script for all agents with a specific label. node statements in Scripted Pipeline, label parameters to agent sections in Declarative Pipeline, or Matrix Project axes). Freestyle jobs) and within jobs (e. For example, java8 && linux, (docker || java) && !windows , and corp-agent-node-01-name are all valid label syntax. but label doesnt support "any". Need more capacity with maven builds, add more agents with the same label. Agents labeled by tool name now lets you write declarative pipelines that focus on the tasks per stage. Conclusion By mapping your Jenkins pipeline parameters to specific agent labels using a Groovy map, you can maintain a more flexible and organized build process. Sections（章节） Declarative Pipeline里的Sections通常包含一个或多个Directives或 Steps agent agent部分指定整个Pipeline或特定阶段将在Jenkins环境中执行的位置，具体取决于该agent 部分的放置位置。 该部分必须在pipeline块内的顶层定义 ，但stage级使用是可选的。 I configured the Jenkins server with my repo and I installed all the suggestd plggins + docker pipeline plugin. Earlier we had fixed nodes allotted for each platform so it was easy to have platform specific nodes and allocate them using agent { label ${PLATFORM} }. 1k次。本文详细介绍了 Jenkins Pipeline 中 agent 指令的使用方法及其多种参数配置，包括 any、none、label 和 node 等，帮助读者了解如何有效指定执行环境。 } sh 'echo "This is a promote step " ' } } } } I'm facing following error: groovy. Label assignments of features like custom tool auto-installers, typically used to distinguish OS platforms. In the build step of the build stage, we would specify the actual container (such as maven, graddle, python) to do specific build. We have a large set of declarative pipelines using agent / label directive to select the on-prem Jenkins agents to run on. 65 I'm using declarative Jenkins pipelines to run some of my build pipelines and was wondering if it is possible to define multiple agent labels. The section must be defined at the top level inside the pipeline block, but stage-level usage is optional. The Label agent supports label expressions using Jenkins' standard label syntax, including boolean operators and parentheses. Binding I did tried solution from below link, but it didn't work. They refer to different concepts in the Jenkins pipeline. You can choose to run entire pipeline on any available agent (agent any at the top of the pipeline) or run a specific stage on the agent of choice e. In all the previous examples, only a single agent has been used. docker also Oct 8, 2017 · Is there a way to set the agent label dynamically and not as plain string? The job has 2 stages: First stage - Runs on a "master" agent, always. 1. Multibranch Pipeline Projects: The computed folder functionality includes Scan Multibranch Pipeline Log and Scan Multibranch Pipeline Now options, which dynamically manage pipeline items. The label value is provided by an env property. Refer to the documentation of the specific plugins for environment variable names and descriptions for those plugins. The agent directive tells Jenkins where and how to execute the Pipeline, or subset thereof. docker 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. An agent is a small (170KB single jar) Java client process that connects to a Jenkins controller and is assumed to be unreliable. . 8. Discover configuration options, practical usage, and best practices for building robust CI/CD workflows. Jenkins agent标签用于区分不同环境特性，如JDK8、node10等。标签支持多维度定义，包括工具链、操作系统等。通过agent{label}指定运行环境，支持多标签过滤和自定义工作目录。合理使用agent none和when指令能优化pipeline执行效率。 2 It can match an exact node name, a label, any other supported label expression. This is a quick and easy way to manage your Jenkins agents and keep them organized. Is there any proper way to fix this? I’m working with Jenkins Pipeline, and I have a question regarding agent allocation for different stages in a pipeline. agent any agent none agent { label "whatever" } Agent concepts Jenkins agents provide executors that perform work when requested by the Jenkins controller. Not only can this behavior be overridden, but Pipeline allows utilizing multiple agents in the Jenkins environment from within the same Jenkinsfile, which can helpful for more advanced use-cases such as executing } } } } Below is Jenkins job configuration snapshot for Pipeline My Question is how can I change the agent label depending upon branch name or some conditions. Jenkins pipeline: List agents by name or by label Jenkins instance computers getLabels displayName The agent section specifies where the entire Pipeline, or a specific stage, will execute in the Jenkins environment depending on where the agent section is placed. Today I implemented a complete end-to-end CI/CD workflow using Jenkins Declarative Pipeline. Then, in the pipeline script, you specify the label the job runs on: Hello I would like to implement in jenkins pipeline method to select agent type like docker, dockerfile, kubernetes, label, none in the nutshell if ( $TESTS == “Bitbucket”) { agent { kubernetes { yamlFile ‘rc/confi… 文章浏览阅读4. g. Sep 16, 2025 · Learn how agents and stages function in Jenkins Declarative Pipelines. In a declarative jenkins pipeline - can I set the agent label dynamically? Jenkins version: CloudBees Jenkins Defining execution environments In the previous section you may have noticed the agent directive in each of the examples. If you have 10 Jenkins agents configured with the given AGENT_LABEL, you can enter this value as 9, 1 agent is used for the main job. Then I pass that variable to the "agent" of the stage and it uses "any" or a specific label. lang. These options allow Jenkins to scan repositories, generate child items for eligible branches, and automatically update the pipeline list based on changes. The steps to build, test and deliver each application become part of the application itself, stored in a Jenkinsfile. groovy files in your shared libraries. In agents declared at the outermost level of the Pipeline, we can specify the agent // Matches our Slave 1 agent agent {label In our pipeline, we specify an agent (build node - multiple containers in a single K8S pod) to run the pipeline. It has all the functionality of the plugin, but you must add a step to download the Bridge CLI from blackduck repo. Within your src/. I'm new in Jenkins pipeline and I'm trying to figure out how the following could work. groovy file’s call method, you can call pipeline { … }, or possibly different pipeline { … } blocks depending on if conditions and the like. bylxor, fbc7, lsrdg3, 1rvq7, xtop, acjz, rkmf3, syha, leutr, od0w8,