concourse / concourse/docker-image-resource

Is IMDS v2 or IRSA supported?

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enhancement help wanted
Dominant language
Go
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Forks
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Description

I need to force the usage of Instance Metadata Service v2 for my EKS nodes in AWS. With v1 docker-image-resource is able to pull images from ECR with the instance role. With v2 docker-image-resource seems not be able to use the instance role.

A other solution is to use IAM roles for service accounts (IRSA) in AWS. But this also does not work.

resource_types:
  - name: example
    type: docker-image
    source:
      repository: <account_id>.dkr.ecr.eu-central-1.amazonaws.com/<repository_name>
      tag: 0.0.1

Error messages:
IMDS v2: ...credentials not found in native keychain...
IRSA: ...401 not authorized...

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First steps

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the provided docker-image resource configuration on EKS with IMDS v2 and with IRSA, using the reported credential and authorization errors as checkpoints. Done means the resource can authenticate to ECR and pull the image through the supported AWS credential path.

Written by the indexing model from the issue text.

Assessment

Tech stack
aws, docker
Domain
cloud
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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