parameters Parameters are only available at template parsing time. To do so, you'll need to define variables in the second stage at the job level, and then pass the variables as env: inputs. For information about the specific syntax to use, see Deployment jobs. By default, each stage in a pipeline depends on the one just before it in the YAML file. They use syntax found within the Microsoft The following is valid: key: $(value). The Azure DevOps CLI commands are only valid for Azure DevOps Services (cloud service). In YAML pipelines, you can set variables at the root, stage, and job level. There are two variables used from the variable group: user and token. I have 1 parameter environment with three different options: develop, preproduction and production. In the following example, the job run_tests runs if the build_job deployment job set runTests to true. Be careful about who has access to alter your pipeline. Here is an example that demonstrates looking in list of source branches for a match for Build.SourceBranch. How to set and read user environment variable in Azure DevOps Pipeline? Never echo secrets as output. YAML You can browse pipelines by Recent, All, and Runs. System variables get set with their current value when you run the pipeline. Sometimes the need to do some advanced templating requires the use of YAML objects in Azure DevOps. A filtered array returns all objects/elements regardless their names. You can use dependencies to: The context is called dependencies for jobs and stages and works much like variables. Variables can't be used to define a repository in a YAML statement. How do I align things in the following tabular environment? Azure DevOps The following example shows how to use a secret variable called mySecret in PowerShell and Bash scripts. In YAML pipelines, you can set variables at the root, stage, and job level. Here a couple of quick ways Ive used some more advanced YAM objects. If your condition doesn't take into account the state of the parent of your stage / job / step, then if the condition evaluates to true, your stage, job, or step will run, even if its parent is canceled. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. YAML Copy parameters: - name: listOfValues type: object default: this_is: a_complex: object with: - one - two steps: - script: | echo "$ {MY_JSON}" env: MY_JSON: $ { { convertToJson (parameters.listOfValues) }} Script output: JSON Copy { "this_is": { "a_complex": "object", "with": [ "one", "two" ] } } counter Sometimes the need to do some advanced templating requires the use of YAML objects in Azure DevOps. In the following example, condition references an environment virtual machine resource named vmtest. azure-pipelines.yaml: parameters: - name: testParam type: string default: 'N/A' trigger: - master extends: template: my-template.yaml parameters: testParam: $ { { parameters.testParam }} Share Improve this answer Follow edited Apr 3, 2020 at 20:15 answered Apr 3, 2020 at 20:09 akokskis 1,426 17 31 Interesting! When operating on a collection of items, you can use the * syntax to apply a filtered array. How to handle a hobby that makes income in US, About an argument in Famine, Affluence and Morality. parameters The parameters list specifies the runtime parameters passed to a pipeline. parameters Parameters have data types such as number and string, and they can be restricted to a subset of values. True and False are boolean literal expressions. The logic for looping and creating all the individual stages is actually handled by the template. The important concept here with working with templates is passing in the YAML Object to the stage template. Asking for help, clarification, or responding to other answers. For example, in this YAML file, the condition eq(dependencies.A.result,'SucceededWithIssues') allows the job to run because Job A succeeded with issues. You can define a variable in the UI and select the option to Let users override this value when running this pipeline or you can use runtime parameters instead. Runtime expressions are intended as a way to compute the contents of variables and state (example: condition). If, for example, "{ "foo": "bar" }" is set as a secret, Operating systems often log commands for the processes that they run, and you wouldn't want the log to include a secret that you passed in as an input. This function is of limited use in general pipelines. There are variable naming restrictions for environment variables (example: you can't use secret at the start of a variable name). Never pass secrets on the command line. If a stage depends on a variable defined by a deployment job in a different stage, then the syntax is different. In the following example, you can't use the variable a to expand the job matrix, because the variable is only available at the beginning of each expanded job. Select your project, choose Pipelines, and then select the pipeline you want to edit. parameters: - name: param_1 type: string default: a string value - name: param_2 type: string default: default - name: param_3 type: number default: 2 - name: param_4 type: boolean default: true steps: - $ { { each parameter in parameters }}: - script: echo '$ { { parameters.Key }} -> $ { { parameters.Value }}' azure-devops yaml Azure devops yaml template passing hashset While these solutions are creative and could possibly be used in some scenarios, it feels cumbersome, errorprone and not very universally applicable. You need to set secret variables in the pipeline settings UI for your pipeline. You can use if to conditionally assign variable values or set inputs for tasks. You can use variables with expressions to conditionally assign values and further customize pipelines. You can also pass variables between stages with a file input. Because variables are expanded at the beginning of a job, you can't use them in a strategy. Here's an example that shows how to set two variables, configuration and platform, and use them later in steps. For example, you may want to define a secret variable and not have the variable exposed in your YAML. The yaml template in Azure Devops needs to be referenced by the main yaml (e.g. YAML Copy Azure DevOps Use templates to define variables in one file that are used in multiple pipelines. See Set a multi-job output variable. The syntax for calling a variable with macro syntax is the same for all three. If you queue a build on the main branch, and you cancel it while stage1 is running, stage2 won't run, even though it contains a step in job B whose condition evaluates to true. Parameters are only available at template parsing time. They're injected into a pipeline in platform-specific ways. parameters: - name: myString type: string default: a string - name: myMultiString type: string default: default values: - default To call the stage template will Tried this, but docs say I can't use expressions in parameters section: Have you ever tried things like that or have any idea how to parametrize it? azure devops (variables['noSuch']). The logic for looping and creating all the individual stages is actually handled by the template. At the job level, to make it available only to a specific job. Create a Yaml Pipeline with the Azure DevOps The following isn't valid: $[variables.key]: value. System and user-defined variables also get injected as environment variables for your platform. YAML Copy parameters: - name: listOfValues type: object default: this_is: a_complex: object with: - one - two steps: - script: | echo "$ {MY_JSON}" env: MY_JSON: $ { { convertToJson (parameters.listOfValues) }} Script output: JSON Copy { "this_is": { "a_complex": "object", "with": [ "one", "two" ] } } counter Writing Azure DevOps Pipelines YAML, have you thought about including some conditional expressions? Looking over the documentation at Microsoft leaves a lot out though, so you cant actually create a pipeline just by following the documentation.. Conditionals only work when using template syntax. If a variable appears in the variables block of a YAML file, its value is fixed and can't be overridden at queue time. This example shows how to reference a variable group in your YAML file, and also add variables within the YAML. When you set a variable in the UI, that variable can be encrypted and set as secret. At the job level, to make it available only to a specific job. Here a couple of quick ways Ive used some more advanced YAM objects. parameters Use failed() in the YAML for this condition. Then in Azure pipeline, there is a parameter like that: I want to use the variable instead of the hardcoded list, since it's present in multiple pipelines. If you're defining a variable in a template, use a template expression. On UNIX systems (macOS and Linux), environment variables have the format $NAME. However, don't use a runtime expression if you don't want your empty variable to print (example: $[variables.var]). At the stage level, to make it available only to a specific stage. Inside a job, if you refer to an output variable from a job in another stage, the context is called stageDependencies. To set a variable at queue time, add a new variable within your pipeline and select the override option. This script outputs two new variables, $MAJOR_RUN and $MINOR_RUN, for the major and minor run numbers. A pool specification also holds information about the job's strategy for running. To pass variables to jobs in different stages, use the stage dependencies syntax. If you're using classic release pipelines, see release variables. Looking over the documentation at Microsoft leaves a lot out though, so you cant actually create a pipeline just by following the documentation.. how can I use IF ELSE in variables of azure DevOps yaml pipeline with variable group? For a step, equivalent to in(variables['Agent.JobStatus'], 'Succeeded', 'SucceededWithIssues', 'Failed'). You can use runtime expression syntax for variables that are expanded at runtime ($[variables.var]). Only when a previous dependency has failed. A variable set in the pipeline root level overrides a variable set in the Pipeline settings UI. Even if a previous dependency has failed, even if the run was canceled. In the YAML file, you can set a variable at various scopes: When you define a variable at the top of a YAML, the variable is available to all jobs and stages in the pipeline and is a global variable. There is a limitation for using variables with expressions for both Classical and YAML pipelines when setting up such variables via variables tab UI. At the job level, you can also reference outputs from a job in a previous stage. This function can only be used in an expression that defines a variable. There's another syntax, useful when you want to use variable templates or variable groups. When you set a variable in the UI, that variable can be encrypted and set as secret. parameters # parameters.yml parameters: - name: doThing default: true # value passed to the condition type: boolean jobs: - job: B steps: - script: echo I did a thing condition: and (succeeded (), eq ('$ { { parameters.doThing }}', 'true')) YAML Copy You can specify parameters in templates and in the pipeline. # compute-build-number.yml # Define parameter first way: parameters: minVersion: 0 # Or second way: parameters: - name: minVersion type: number value: 0 steps: - task: Bash@3 displayName: 'Calculate a build number' inputs: targetType: 'inline' script: | echo Computing with $ { { parameters.minVersion }}