using variables in azure pipelines

variables: global_variable: value # this is available to all jobs jobs: - job: job1 pool: vmImage: 'ubuntu-16.04' variables: job_variable1: value1 # this is only available in job1 steps: - bash: echo $(global_variable) - bash: echo $(job_variable1) - bash: echo $JOB_VARIABLE1 # variables are available in the script environment too - job: job2 pool: vmImage: 'ubuntu-16.04' variables: job_variable2: value2 # this is only available in job2 steps: - bash: echo $(global_variable) - bash: echo $(job_variable2) - bash: echo $GLOBAL_VARIABLE

variables:
 GLOBAL_MYSECRET: $(mySecret) # this will not work because the secret variable needs to be mapped as env
 GLOBAL_MY_MAPPED_ENV_VAR: $(nonSecretVariable) # this works because it's not a secret.

steps:

- powershell: |
    Write-Host "Using an input-macro works: $(mySecret)"
    Write-Host "Using the env var directly does not work: $env:MYSECRET"
    Write-Host "Using a global secret var mapped in the pipeline does not work either: $env:GLOBAL_MYSECRET"
    Write-Host "Using a global non-secret var mapped in the pipeline works: $env:GLOBAL_MY_MAPPED_ENV_VAR" 
    Write-Host "Using the mapped env var for this task works and is recommended: $env:MY_MAPPED_ENV_VAR"
  env:
    MY_MAPPED_ENV_VAR: $(mySecret) # the recommended way to map to an env variable

- bash: |
    echo "Using an input-macro works: $(mySecret)"
    echo "Using the env var directly does not work: $MYSECRET"
    echo "Using a global secret var mapped in the pipeline does not work either: $GLOBAL_MYSECRET"
    echo "Using a global non-secret var mapped in the pipeline works: $GLOBAL_MY_MAPPED_ENV_VAR" 
    echo "Using the mapped env var for this task works and is recommended: $MY_MAPPED_ENV_VAR"
  env:
    MY_MAPPED_ENV_VAR: $(mySecret) # the recommended way to map to an env variable

Posted by: Guest on February-05-2021

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