Azure-devops-docs: Multiple Docker Compose File Args not parsing through

[RyanSpartan117]

We're trying to parse in multiple variables into a docker compose task using the dockerComposeFileArgs flag. So far, the first argument will contain the contents of the other key value pairs despite the documentation saying seperate using a new line.

example:

   variables:
      firstArg=first_arg
      secondArg=second_arg

- task: DockerCompose@0
  displayName: 'Container build'
  inputs:
      .
      .
      .
     dockerComposeFileArgs: 
        firstArg=$(firstArg)
        secondArg=$(secondArg)

Which will put everything into the first argument.

RUN echo $firstArg
> first_arg secondArg=second_arg

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Document Details

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• ID: d767aebb-620e-9ad3-e906-3e2bafa02ee9
• Version Independent ID: c8cb5a48-ccdf-778c-1547-a10db74cb56c
• Content: Docker Compose task - Azure Pipelines
• Content Source: docs/pipelines/tasks/build/docker-compose.md
• Product: devops
• GitHub Login: @steved0x
• Microsoft Alias: shasb

[flcdrg]

You need to use the | operator in YAML to indicate that newlines should be preserved.

eg.

dockerComposeFileArgs: |
  firstArg=$(firstArg)
  secondArg=$(secondArg)

See https://stackoverflow.com/a/21699210/25702 for more info.

Would be good to mention this in the documentation

[chasewilson]

The documentation has been updated. Thank you for the feedback. If you see anything else, feel free to open a new issue