Conditions in yaml pipeline for deployment

Question

I have a question regarding yaml conditions. I followed this documentation: https://docs.microsoft.com/en-us/azure/devops/pipelines/process/conditions?view=azure-devops&tabs=yaml

I need to deploy to each environment based on some conditions. For example,

deploy to 'int' environment only if source branch is 'develop'
deploy to 'ua' environment only if source branch is 'master'
deploy to 'prod' environment only if source branch is 'master'

If any of these conditions is true, deploy to that environment.

I wrote a condition as follows:

condition: |
      or(
        and(
          eq(variables['Build.SourceBranch'], 'refs/heads/develop'),
          eq('${{ parameters.environmentAbbreviation }}', 'int')
        ),
        and(
          eq(variables['Build.SourceBranch'], 'refs/heads/master'),
          eq('${{ parameters.environmentAbbreviation }}', 'ua')
        ),
        and(
          eq(variables['Build.SourceBranch'], 'refs/heads/master'),
          eq('${{ parameters.environmentAbbreviation }}', 'prod')
        )
      )

This is what I get while running build/release:

Evaluating:

or(and(eq(variables['Build.SourceBranch'], 'refs/heads/develop'), eq('int', 'int')), and(eq(variables['Build.SourceBranch'], 'refs/heads/master'), eq('int', 'ua')), and(eq(variables['Build.SourceBranch'], 'refs/heads/master'), eq('int', 'prod')))

Expanded:

or(and(eq('refs/heads/develop', 'refs/heads/develop'), eq('int', 'int')), and(eq('refs/heads/develop', 'refs/heads/master'), eq('int', 'ua')), and(eq('refs/heads/develop', 'refs/heads/master'), eq('int, 'prod')))

Because the first condition is correct, my assumption is that the deployment would start in int environment. But this didn’t deploy to int environment. Why is that?

this condition doesnt make sense to me. it will fire in all of the 3 cases, so whats the point? shouldn't you have 3 different steps with 3 different conditions? also, what doesnt work, you didnt really specify that. how do you verify the condition is not working — 4c74356b41

Merlin Liang - MSFT Merlin Liang - MSFT · Accepted Answer · 2020-04-06T07:41:35

Not sure what is your complete YAML script, but the condition should work to deploy with int environment.

I just run it and it works fine. Here is what the test YAML I test with, and you can have a check with yours:

parameters:
- name: 'environmentAbbreviation'
  type: string
  default: int

stages:
- stage: DeployToDevelopment
  displayName: Deploy to 
  jobs:
  - deployment: DeployDev
    condition: or(and(eq(variables['Build.SourceBranch'], 'refs/heads/develop'), eq('${{ parameters.environmentAbbreviation }}', 'int')), and(eq(variables['Build.SourceBranch'], 'refs/heads/master'), eq('${{ parameters.environmentAbbreviation }}', 'ua')), and(eq(variables['Build.SourceBranch'], 'refs/heads/master'), eq('${{ parameters.environmentAbbreviation }}', 'prod')))
    environment: ${{ parameters.environmentAbbreviation }}
    strategy:
      runOnce:
        deploy:
          steps:
          - pwsh: |
              Write-Host ${{ parameters.environmentAbbreviation }}
            name: outputVars

Conditions in yaml pipeline for deployment

1 Answers