add option to use local test image tarball instead of building the image

[notrepo05]

Please see the original PR authored by nouseforaname: https://github.com/pivotal-cf/kiln/pull/494. Recreating for github action permissions

Copied for convenience:

Long story short, we'd like to run kiln test in a shared concourse.

We are prevented from doing so because we cannot pull the images that https://github.com/pivotal-cf/kiln/blob/main/internal/test/Dockerfile requires for the FROM steps.

We are using authenticated pulls but we still get rate limited.

We'd like to be able to prebuild the required image via the build-oci task and then be able to consume the prebuild image in out kiln test task

../kiln/kiln test --manifest --image-path image.tar.gz
kiln test: 2024/06/06 10:43:20 connecting to ssh socket "/run/user/1000/keyring/ssh"
kiln test: 2024/06/06 10:43:20 ensuring ssh agent keys are configured
kiln test: 2024/06/06 10:43:20 pinging docker daemon
kiln test: 2024/06/06 10:43:20 completed session setup
kiln test: 2024/06/06 10:43:20 loading test image
kiln test: 2024/06/06 10:43:21 loaded image image.tar.gz:
{"stream":"Loaded image: kiln_test_dependencies:vmware\n"}

kiln test: 2024/06/06 10:43:21 creating test container
kiln test: 2024/06/06 10:43:21 created test container with id bc702b3be2c69ee63c9ff035c97e1123c1781ffcc64e819bea09583d5e279e6c
go: downloading github.com/onsi/gomega v1.33.1
go: downloading github.com/pivotal-cf/kiln v0.94.0
go: downloading github.com/onsi/ginkgo/v2 v2.17.2
go: downloading github.com/google/go-cmp v0.6.0
go: downloading gopkg.in/yaml.v3 v3.0.1
go: downloading golang.org/x/net v0.24.0

• add flag to provide docker test image as tarball
• add alternative to execute image-build every time
• implement changes requested on review

[cf-gitbot]

We have created an issue in Pivotal Tracker to manage this. Unfortunately, the Pivotal Tracker project is private so you may be unable to view the contents of the story.

The labels on this github issue will be updated when the story is started.

[notrepo05]

This PR supersedes https://github.com/pivotal-cf/kiln/pull/494

[notrepo05]

cc @nouseforaname

[notrepo05]

cc @pvaramballypivot: I recreated https://github.com/pivotal-cf/kiln/pull/494 on behalf of @nouseforaname since test couldn't run on CI. They're passing now and nothing has since changed. Thanks!

[nouseforaname]

Hey, is this ever going to happen? It prevents us from running our tile templating tests in CI