Azure pipelines conditional variables. PullRequest.

Azure pipelines conditional variables. Screenshot of execution Because of some reason, I have some trouble while using template expressions syntax (If-else statement especially) with variables that are imported from a template. In my pipeline I'm calling the template like this: stages: - template: aspnet-core. Oct 9, 2020 · Kevin Lu is correct, but here is some additional context to why it works the way it does. JobA. Oct 1, 2025 · Variables are name-value pairs defined by you for use in a pipeline. ). The ${{ <expression> }} syntax is only evaluated at template compile time. Jun 17, 2021 · When environment is used, there is an approval step. Jul 31, 2020 · I am trying to execute an Azure Devops Job on a specific pool based on a condition. I wrote the following test. By leveraging an if condition it is evaluated at compilation time and as such the tasks that aren't satisfied won't even be loaded into the job. Thus, using these variables in a condition in a template is not possible. YAML is not an option (unless there's some way to inject YAML as pa Mar 29, 2022 · I want include a template depending on the variable Agent. Parameters are expanded just before the pipeline runs so that values surrounded by $ { { }} are replaced with parameter values Because the $ { {}} is a runtime expression, I tried to use the env in the "if" condition and it works as expected. 04' TYPE: 'unit' cucumber: imageName: 'ubuntu-16. Jul 31, 2025 · Learn how to use runtime parameters to customize pipeline behavior, control data types, and dynamically pass values. Now the idea is to have an option to manually change the set of microservices to deploy through setting a varia Jul 12, 2021 · I've another condition "Generate Test Data" checkbox which returns boolean value true or false if the value is true then I've to select a file productWithTestData. May I know what you mean by PROD or SWINT variable were added during a manual build? Have you explicitly defined the values for the variables PROD and SWINT in the pipeline? Do you expect the conditions of 3 stages to be evaluated without being dependent on one another? Jun 21, 2022 · I have an Azure Pipeline with the following YAML and I want to run through the "JobB" Job based on the condition: and (succeeded (), eq (dependencies. This Oct 17, 2019 · Let’s imagine that, whatever reason you have, you have a build definition on Azure Devops that is running using Azure Pipelines through an azure-pipelines. You can only handle the boolean type in your script (You can convert the string to boolean in your script and handle them there. yml, if a buildStep gets passed with a script step, then it's rejected and the pipeline build fails. Apr 8, 2023 · And yes, it's still not working. PullRequest. ref, we will see it is not expanded as expected. Feb 18, 2020 · I'm trying to setup an Azure Pipeline that automatically updates version numbers based on which branch is being built. setvariable syntax. yml, but it does not work: jobs: - job: Test pool: vmImage: 'ubuntu-late Apr 12, 2020 · The above condition will cause the WebApp2 job to be skipped if the BuildWebApp2 variable isn’t true. yml file and should have conditional step execution based, uppon others, on a variable value that is settable on Pipeline Run time. I have an Azure DevOps pipleline with one stage that is dependant upon two others. Jul 14, 2025 · Template expressions are a compile-time feature of Azure Pipelines. Only predefined variables Oct 16, 2023 · I have a template with common variables defined for my pipelines, it contains a variable that tell whether if it's a main branch among other things. Use all the DevOps services or choose just what you need to complement your existing workflows from Azure Boards, Azure Repos, Azure Pipelines, Azure Test Plans and Azure Artifacts. Template expressions can expand template parameters, and also variables. yaml variables: - name: experimentalTemplate value: true jobs: - template: build-template. Apr 30, 2024 · Can we use runtime variables in conditional statement while calling a template in Azure Pipelines? Asked 1 year, 5 months ago Modified 1 year, 5 months ago Viewed 874 times I'm trying to set up a variable in the Azure Build Pipelines Classic Editor to use conditional functions to determine its value. Jun 21, 2022 · Azure DevOps: Conditional variable value in pipeline Azure DevOps pipeline have tons of feature, one of the less known is the ability to declare variable conditionally. varBoolA'], 'true')) May 29, 2020 · I'm building a complex pipeline in yaml and I'm trying to create a dependency between two jobs such that the latter job runs after the former, but only if the former is set to run based on a parame Aug 8, 2019 · In my Azure DevOps pipeline I have the following: strategy: matrix: unit_test_linux: imageName: 'ubuntu-16. OS: steps: - $ { { if eq (variables ['Agent. This is my pipeline code: pr: none trigger: none stages: - stage: Mail variables: Sep 13, 2021 · How to properly use expression results as booleans on Azure Devops pipelines? Asked 4 years, 1 month ago Modified 2 years, 1 month ago Viewed 10k times Jun 29, 2022 · Azure DevOps YAML run step if variable not equal null - how to reference yaml variable in condition You need to pay attention to the equivalence of single quotes. Mar 26, 2021 · I am learning to use azure devop's yaml pipeline. I tried to compare null. However, Azure Pipeline complains cause error, if I configure like this. I did wrote another post on this (Azure pipelines, question about variables, powershell and deployments), now I succeeded to retrieve the Output variable from the script but I still can't use it in a condition. Information and discussion about Azure DevOps, Microsoft's developer collaboration tools helping you to plan smarter, collaborate better, and ship faster with a set of modern dev services. OS'], 'Linux') }}: - template: /templates/prepare-tool. Azure DevOps supports the following types of conditions: Built-In Condition Custom Condition Scenario An Azure DevOps Pipeline consists of Tasks that are executed sequentially by the Agent. There may be a few other predefined variables, but they're mostly for internal use. Following is the sample code for Jul 14, 2020 · I am trying to make my environment variables dependent on the Agent operating system. As my goal was to have certain May 12, 2021 · I am trying to assign conditional value to an environment variable in Azure DevOps but it is not working. I have a conditional step that works fine as well: - $ { { if contains (parameters. Condition is failing due to empty value of the parameter. var }}) get processed at compile time, before runtime starts. I set a variable in the first stage and then for the next stage, I have a condition based on that variable. The file start-extends-template. environment }} jobs: - job: steps: - script As previously stated the or needs it to be an expression but if you want it a bit more readable and only have the evaluation of the expression once in your variables section you could do it like this: or (eq (variables ['isMaster'], 'true'), eq (variables ['isRelease'], 'true')) Example with a and containing a or with an and statement in it: - task: AzureCLI@2 displayName: Download feed. For more details on how to use conditions see the Conditions docs. Wrap your template expression inside this syntax: ${{ }}. You can use runtime parameters: parameters: - name: environment displayName: Environment type: string default: QA values: - QA - PROD stages: - stage: displayName: 'Build and Restore' variables: - group: ${{ parameters. This blog explains how to use the if condition with pipeline variable values. ---This video is Jun 5, 2024 · You currently are leveraging conditions which will evaluate at pipeline execution and typically will show a status of skipped if the condition is not filled. Is there any way to accomplish what this pseudo-code would? Aug 4, 2021 · Creating Azure DevOps Pipelines, have you used a condition to determine which variables to use? If not, I will detail in this blog post how you can do this! Apr 28, 2025 · If you're using deployment pipelines, both variable and conditional variable syntax will differ. com/en-us/azure/devops/pipelines/process/expressions?view=azure-devops#conditional-insertion there is one example also there is note that if you want to use property dereference syntax it can contain only and so dot sign is not acceptable (dot between Build and Reason) Information and discussion about Azure DevOps, Microsoft's developer collaboration tools helping you to plan smarter, collaborate better, and ship faster with a set of modern dev services. Nov 17, 2022 · The variables in the concept of Azure DevOps pipeline are always string type, no other type including boolean. Jun 30, 2025 · How to use custom conditions in your Azure Pipelines to evaluate at runtime whether to execute a given step, job or stage. The step checks this parameter in order to decide whether to run or skip. Now I want to execute a sequence of steps only if a certain condition becomes true during runtime. TargetBranch (and I assume at least some other variables within System. Oct 18, 2022 · Conclusion In conclusion, the if, elseif, and else expressions are powerful tools in Azure DevOps pipelines. Jan 6, 2025 · Conclusion Conditional builds in Azure DevOps are a powerful way to make your pipelines smarter and more efficient. In start-extends-template. Here is my pipeline: stages: - stage: plan_dev jobs: - job: Apr 20, 2021 · Is it possible to add runtime parameters based on condition - Azure Devops Pipeline I am afraid it it impossible to runtime parameters conditionally define values based on another parameter value. Jul 3, 2022 · Azure pipeline conditions Azure pipeline has two kinds of conditions: With keyword condition With jinja like format ${{if elseif else}} In both syntax, we have use parameters and variables, but there's a big difference between them which makes DevOps frustrated. This useful setting is hidden away on each pipeline task and will unlock customization options for all your needs. Check out the following feature descriptions for details. yml or update. When I was looking for a way to do this, I couldn’t find many examples, so Feb 26, 2025 · This blog post explains a sample YAML pipeline with a variable condition that checks the build source branch. May 3, 2022 · Azure DevOps Pipeline If, elseif or else expression examples In this blog post, I will show example usage of these expressions in: Determining which variable to use Determining which task to run Determining which stage to run if, elseif or else expressions to determine which variable to use Lets have a look at using these conditional expressions as a way to determine which variable to use Jul 8, 2021 · I know that it is possible to conditionally set a variable in azure pipelines yml. yml based on a pipeline variable supplied at run tim Apr 8, 2025 · Azure DevOps provides Variable Groups, which are reusable sets of variables that can be shared across pipelines. Aug 17, 2019 · Azure Pipelines has Expressions and Conditions, but I can find no way to assign one of two values to a variable, based on a condition. yml@templa Jul 18, 2025 · From basic conditional logic to advanced techniques, the power of azure devops pipeline conditions lies in their ability to streamline your development process, improve code quality, and ultimately deliver better software faster. com/en-us/azure/devops/pipelines/process/expressions Feb 18, 2020 · I'm trying to setup an Azure Pipeline that automatically updates version numbers based on which branch is being built. So, I have a quite simple ADO Yaml pipeline: azure-pipelines. The goal is to switch between self-hosted agent and microsoft agent. Aug 1, 2025 · This article describes the different conditions that allow an Azure Pipelines stage, job, or step to run, and how to set those conditions in a YAML pipeline definition. While the ${{ <expression> }} syntax is handy to conditionally output template lines Jun 7, 2019 · I have also tried to define if condition inside the [ ] condition and tried to move values from variables to the parameters inside steps. So, here are a few things I have learnt… What are stage dependency variables? Stage Dependencies are the way you define which stage follows another in a multi-stage YAML pipeline. If the source branch is main, the fileName variable is set to production, otherwise, it is set to pre-production. Jun 9, 2022 · Continue to help good content that is interesting, well-researched, and useful, rise to the top! To gain full voting privileges, Apr 1, 2020 · This is slightly different solution but you may achieve your goal - which is if I understood conditional selection of variable group. PullRequestId'], 'Null') variables: prId: $ (Sy Feb 1, 2022 · I use Azure Pipelines to Build my solution. This is a list of predefined variables that are available for your use. Mar 27, 2024 · In some cases, you may want to change the value of an Azure Pipeline variable depending on the environment data. yml like this: build. These variables are automatically set by the Jan 13, 2020 · I've 2 variables in azure devops Var1= A,B,C Var2= 1,2 I need to run a task with the following conditions Var1=A,B,C & Var2=1,2 Var1=A & Var2=1 From the official doc i can only able to see Learn how to declare variable groups conditionally in Azure DevOps YAML pipelines, fixing common indentation issues for seamless integration. With that in mind, I tested the following, which w Dec 13, 2021 · I have looked at https://learn. You can use variables as inputs to tasks and in your scripts. This stage should run conditionally if both of the following are true - Stage 1 (Deploy_BVT_UKS_Internal) sets an Oct 4, 2022 · In this sprint, we included support for wild cards and conditional expressions to YAML pipeline files. Jul 3, 2019 · I'm finding the best way to find a variable is null on the custom condition. In an Azure DevOps YAML pipeline, a variable if condition can be defined as follow Feb 26, 2025 · Azure DevOps pipeline expression functions enable the creation of powerful Azure DevOps YAML pipelines to achieve various advanced automation needs for build and deployment purposes. minor. The following statements are equivalent: condition: succeeded() # equivalent to: condition: $[ succeeded() ] Variables are also only evaluated at runtime. xml Jan 6, 2023 · I'm trying to use the build number of the pipeline in a conditional to determine which task to run. This template will execute a step depending on the value of an input paramter: # Template '. See https://learn. Your solution when applied to the actual question asked forces OP to create 2 pipelines 1) trigger = master & env = a 2) trigger = dev & env = b. With these expressions, you can determine which variable, task, or stage should be used based on certain conditions. If you attempt to check their value, it will always return an empty value. Conditions with keyword $ { {if elseif else}} With ${{if elseif else}} condition, the using parameters and variables' values are The task iterates through all variables in variable group using Azure DevOps API and sets variables in pipeline using task. They can be used to add conditional logic to your pipeline and make it more dynamic and flexible. microsoft. You can specify variables at the pipeline, stage, or job level. Includes information on eq/ne/and/or as well as other conditionals. Today's snippet includes conditionals, parameters, and triggers. This is entirely possible according to the documentation. Aug 10, 2022 · I'm using Azure Devops, yaml pipelines, for deploying several microservices parallel. Mar 31, 2024 · Azure DevOps — Pipelines offer the ability to run a Task conditionally, meaning we can determine whether or not to run the task based on specific conditions. yml # Apr 28, 2022 · Consider the following scenario, on where a job (or stage), needs to use some local, conditional and template variables: # (1) Local for the yaml file variables: buildPlatform: 'Any CPU' Feb 6, 2020 · I'm setting up a build template and can't figure out the syntax for an optional object type parameter. They can get confusing quickly, you need one syntax in one place and another elsewhere. In short, System. Use conditional insertion with template expressions. PullRequest are not available in compile time for template, which is when conditions are evaluated. the code in said template looks something like t Feb 23, 2020 · Here's how I'm trying to accomplish inserting a template conditionally. yaml Jun 18, 2024 · In my Azure DevOps YAML pipeline, the deployment of a website has been coded in a reusable template. These groups are managed under the Library section within the Pipelines tab. You are passing a variable to a template, which is fine. js if Product is selected - I don't know how to write if else condition in Azure pipeline code. here is the output from the variable calculation The job parameters in pipeline look like this Feb 18, 2020 · I'm using Azure DevOps to build a pipeline, but I wish to change the name of the build. <Alias>. I am invoking the pipeline from a rest API call by passing Parameters in the body which is documen Information and discussion about Azure DevOps, Microsoft's developer collaboration tools helping you to plan smarter, collaborate better, and ship faster with a set of modern dev services. In addition, we've made multiple updates to the Azure Pipelines hosted images. For information about the specific syntax to use, see Deployment jobs. environment, 'PROD') Dec 28, 2022 · Examples in our blueprints Conditional Quality Assurance and Security Scans As described in our recent Azure Pipelines Blueprint QA Integration post, our pipelines are designed to target a lower and higher environment, whereby the higher is locked down and only included when the artifact originates from a release branch. In an Azure DevOps YAML pipeline, a variable if condition can be defined as follow Jun 10, 2025 · Use template expressions to specify how values are dynamically resolved during pipeline initialization. Example steps: - template: steps_checkout. yaml Oct 15, 2021 · I am trying to set variables based on a parameter value in a yaml pipeline. Nov 3, 2023 · You posted an answer which made me think the issue was resolved. This means that any user variables will not yet have been initialized. yml Nov 2, 2021 · What if you have a custom variable and want to run a task based on its value? All of these situations are made possible by the use of custom conditions in Azure Pipelines. Now I want the default value (and so the value when triggered automatically) Feb 15, 2025 · Revising my answer based on the updated question. yml Learn how to utilize variables from previous tasks in `Azure Pipelines` to improve your CI/CD processes. The parameters object works like the variables object in an expression. Aug 27, 2021 · I am working with an Azure Pipeline in which I need to conditionally set the environment property. Reason'], 'IndividualCI'), startsWith(variables Mar 2, 2022 · I am working on a azure devops multi stage yaml pipeline. They allow a single pipeline to be used for … Mar 25, 2025 · Azure DevOps Services | Azure DevOps Server | Azure DevOps Server 2022 | Azure DevOps Server 2020 Variables give you a convenient way to get key bits of data into various parts of your pipeline. yml defines the parameter buildSteps, which is then used in the pipeline azure-pipelines. Here’s how you can use it, but lots to unpack to understand why. Apr 11, 2020 · I’m trying to pass a variable from one task as a parameter to a template which is being called at the next task and using it in a condition in the template. Which broking all logic of my pipeline. SourceBranch'], variables ['var-1']) }}: my-list: - element 1 Currently the above example works, but I need t Apr 28, 2021 · Snippets of common questions and issues from Azure Pipeline workshops and support calls. I implemented that in TypeScript so that it works on Windows and Linux. There are two main ways to make parts of your Azure Pipeline conditional: Add a custom condition to the step, job or stage. Learn how they differ to custom conditions and see some common examples of their usage. yml Apr 8, 2023 · And yes, it's still not working. Feb 28, 2021 · I have got an Azure Pipeline already running. Nov 12, 2019 · The question asked was how to make a variable value conditional based on the context in which the pipeline is triggered. When building manually the user can decide which Build Configuration to use. YAML like: variables: ${{ if eq(env, 'prd') }}: environment: 'ADO Environment' ${{ else Jan 10, 2022 · I have been doing some work with Azure DevOps multi-stage YAML pipelines using stage dependency variables and conditions. Oct 20, 2021 · I am trying to use if else conditions in Azure Devops yml pipeline with variable groups. I've got a pipeline I've created that deploys some app settings to all our websites (multiple per file), and I'm trying to conditionally set a variable within the JSON structure without any sort of Nov 15, 2023 · In a pipeline, template expression variables (${{ variables. 04' TY Jan 10, 2022 · I have been doing some work with Azure DevOps multi-stage YAML pipelines using stage dependency variables and conditions. Feb 6, 2025 · Conditional variables can be used in Azure DevOps pipelines to make decisions based on the state of the pipeline. Given a master branch, a develop branch, and a version in the form {major. In this post we’ll look at custom conditions. Is it possible to put an execution condition on any template defined inside 'steps'? For ex: Based on any pipeline variable value (dynamic, passed Apr 16, 2024 · How by condition I can populate list in azure pipeline yaml? $ { { if eq (variables ['Build. Feb 10, 2021 · Detailed guide on how to use if statements within Azure DevOps YAML pipelines. Feb 26, 2025 · Azure DevOps pipeline expression functions enable the creation of powerful Azure DevOps YAML pipelines to achieve various advanced automation needs for build and deployment purposes. We'll walk you through fixing common errors and stru Oct 31, 2022 · I am having problem in calling template as the pre-condition is not getting satisfied, I am comparing parameter value to select which template to call at runtime, here I am having parameter value c Aug 14, 2025 · List syntax requires you to specify whether you're mentioning a variable (name), a variable group (group), or a template (template). When referencing variables Mar 18, 2022 · I have been following this Microsoft doc and created a release pipeline in YAML, all works fine. In my library I set a variable group MyGroup, where a variable useA can have the value true or false azure-pipeli Mar 16, 2021 · Dear community, I have the following template expression inside a variables block: ${{ if and(eq(variables['Build. You can't use list and mapping variables in the same variables section, but you can combine name, group, and template when using list syntax. For example, you can use a condition to set a variable to a specific value only when a certain condition is met. Would you be able to help me ? Nov 23, 2022 · According to your YAML file, I can reproduce your problem. and (failed (), ne ( Jul 18, 2023 · This query is regarding Azure DevOps YAML pipeline. This Jul 20, 2022 · Using Azure Pipelines, I'd like to select a template depending on a variable group. Here is an example azure-pipeline. Inspired by this example in the ADO expressions FAQ, I set a variable to the minor number of the Pipeline conditions [!INCLUDE version-lt-eq-azure-devops] This article describes the different conditions that allow an Azure Pipelines stage, job, or step to run, and how to set those conditions in a YAML pipeline definition. Here is the configuration: parameters: Aug 21, 2025 · To increase security, you can enforce that a pipeline extends from a particular template. On one stage, I put this condition in condition: and (succeeded (), eq (variables ['System. With that in mind, I tested the following, which w Jan 9, 2020 · Main pipeline sets a runtime variable cnd and then passes its value as a parameter to condition-step. Creating a Pipeline Variable The rest of the post is going to walk through creating a Pipeline variable and then running some sample builds to show how depends on and the conditions defined in the YAML above affect the I want a stage in an Azure DevOps pipeline to be executed depending on the content of a variable set in a previous stage. You can use parameters to influence how a template is expanded. Mar 13, 2024 · Although those intermediate variables brname and isPreRelease are not really required, i added them to debug the problem. yml. For the conditional incertion (if, elseif and else), which only works when using template expression ${{ <expression> }} to evaluate the variable resources. So, here are a few things I have learnt What are stage dependency variables? Stage Dependencies are the way you define which stage follows another in a multi-stage YAML pipeline. It seems that I've read many other posts which show examples like the one below that the authors have said worked, but I Nov 27, 2020 · Introduction The use of variables is important in Azure DevOps pipelines, especially when using YML templates. A condition is a runtime expression. Feb 18, 2020 · I'm using Azure DevOps to build a pipeline, but I wish to change the name of the build. Mar 22, 2021 · After investigating this further I concluded that what I am trying to do is not possible. outputs ['PSA. Per requirement, I would like to either call fresh-deploy. repositories. I am trying to implement it as per latest Azure Devops yaml pipeline build. w68jb b5p xpb 2xhsru rgdubx 2xul e52m7 cww e2eb maw

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