Print the effective skaffold.yaml configuration

[dgageot]

Example on examples/nodejs:

$ skaffold diagnose --only-config -p dev
apiVersion: skaffold/v2beta3
kind: Config
build:
  artifacts:
  - image: node-example
    context: backend
    sync:
      manual:
      - src: src/**/*.js
        dest: .
    docker:
      dockerfile: Dockerfile
      buildArgs:
        ENV: development
  tagPolicy:
    gitCommit: {}
  local:
    concurrency: 1
deploy:
  kubectl:
    manifests:
    - k8s/*.yaml

Signed-off-by: David Gageot [email protected]

[dgageot]

cc @matthewmichihara

[codecov]

Codecov Report

Merging #4048 into master will increase coverage by 0.02%.
The diff coverage is 41.66%.

Impacted Files	Coverage Δ
cmd/skaffold/app/cmd/diagnose.go	39.13% <41.66%> (+11.35%)	⬆️
...affold/kubernetes/portforward/kubectl_forwarder.go	68.29% <0.00%> (+2.43%)	⬆️

[balopat]

Love it, I wanted to open a bug for this :D - this will be super useful for gitops workflows as well, where we can "hydrate" the skaffold config into a separate repo for audit purposes!

[briandealwis]

Optional tweaks; I don't feel strongly about them.

[briandealwis]

--only-config reads oddly. --config-only or --yaml-only?

[briandealwis]

Since YAML supports comments, we could output this as comments?