skaffold support for podman login store

[kaplan-michael]

Expected behavior

podman login <registry>
skaffold build
skaffold is able to build and push images
(podmans docker compatibility is enabled, so builds work fine)

Actual behavior

skaffold fails on missing registry credentials, as it can't find $XDG_RUNTIME_DIR/containers/auth.json

Information

• Skaffold version: v2.13.2
• Operating system: Fedora 41
• Installed via: github release
• Contents of skaffold.yaml:

apiVersion: skaffold/v4beta4
kind: Config
metadata:
  name: podman test

build:
  tagPolicy:
    gitCommit:
      variant: CommitSha
      ignoreChanges: true

  artifacts:
    - image: <private registry>
      context: .
      docker:
        dockerfile: ./container_images/Containerfile
        buildArgs:
          GIT_HASH: "{{.GIT.COMMIT}}"

[kaplan-michael]

so I have resolved it by symlinking podmans auth.json to config.json
ln -s $XDG_RUNTIME_DIR/containers/auth.json ~/.docker/config.json

It would still be nice to support that directly in skaffold, eg. look at that path for creds?