Azure-devops-docs: Unexpected value 'container'

[seesharprun]

Whenever I try to use a container image in a pool, I get a Unexpected value 'container' error message.

Here's the YAML file that I am attempting to use:

resources:
  containers:
  - container: pandocContainer
    image: seesharprun/content-generation-pandoc:0.1.0
pool:
  name: 'Hosted Ubuntu 1604'
  container: pandocContainer
steps:
  - script: pandoc -v

---

Document Details

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• ID: 3339a2e0-be29-1363-f588-b231d4472c02
• Version Independent ID: 72dd11a3-704d-d0fd-6dfa-cf49f3352de3
• Content: Container Jobs in Azure Pipelines and TFS
• Content Source: docs/pipelines/process/container-phases.md
• Product: devops
• GitHub Login: @erickson-doug
• Microsoft Alias: macoope

[seesharprun]

Here's the build result:

It's a public repository at https://dev.azure.com/seesharprun/Demo.

[vtbassmatt]

I'll take this one

[vtbassmatt]

Try changing to:

resources:
  containers:
  - container: pandocContainer
    image: seesharprun/content-generation-pandoc:0.1.0
pool:
  vmImage: 'Ubuntu 16.04'     # changed
  container: pandocContainer  # changed
steps:
  - script: pandoc -v

I think what's happening is we see a name we don't recognize, which implies a private pool, and then we don't allow container because we don't have a first-class way to pass a container name to a private pool.

[wesselkranenborg]

I _think_ this is not correct. We are also facing this problem with this configuration.

resources:
  containers:
  - container: build
    image: microsoft/dotnet:2.1-sdk-alpine
pool:
  container: build
  vmImage: 'Ubuntu 16.04'

[vtbassmatt]

Hmm, OK, let me take another look.

[vtbassmatt]

@wesselkranenborg another heads up - containers based on Alpine won't work. We depend on which, bash, and node being in the container. I think Alpine is missing which.

I'm still digging into why the syntax doesn't work, though.

[vtbassmatt]

Ah, container is a peer of pool, whereas it was a child of queue. I will update the docs.

[seesharprun]

Should the alpine limitation be in the docs too?

[vtbassmatt]

Yep, adding that too.