ci: add Tekton pipeline for e2e tests

[Copilot]

Adds a Tekton Pipelines definition under ci/tekton/ that replicates the Dagger-based e2e CI workflow from ci/main.go.

Pipeline stages

fetch-source  →  build-images  →  e2e-test
  (git-clone)      (Kaniko)       (DinD + k3d + pytest)

Stage	Task	Notes
1	git-clone (catalog)	Clones repo with submodules
2	interlink-build-images	Kaniko — no Docker daemon required in build pod
3	interlink-e2e-test	Privileged DinD; mirrors NewInterlink() + Test()

Mapping to ci/main.go

Dagger	Tekton
BuildImages()	interlink-build-images task
NewInterlink()	Steps 7–18 of interlink-e2e-test: Docker network, plugin + interLink containers, k3d cluster, Helm VK deploy
Test() / Run() + pytest	Steps 19–23: wait for VK node, approve CSRs, clone vk-test-set, run pytest with identical filter

e2e-test approach

Dagger uses native service bindings between containers. The Tekton equivalent uses a shared Docker network (interlink-net) — plugin and interLink API server run as docker run containers; the k3d cluster is attached to the same network so the virtual-kubelet reaches interLink by hostname.

Pytest filter matches ci/main.go exactly:

not rclone and not limits and not stress and not multi-init and not fail

To test against pre-built images without the build stage, run interlink-e2e-test directly as a TaskRun (documented in ci/tekton/README.md).

Files

ci/tekton/
├── README.md                  # Setup, usage, Dagger mapping
├── pipeline.yaml              # Pipeline resource
├── pipeline-run.yaml          # Example PipelineRun
└── tasks/
    ├── build-images.yaml      # Kaniko build task
    └── e2e-test.yaml          # DinD/k3d test task

Original prompt

https://tekton.dev/docs/pipelines/tasks/ create a tekton pipeline to run the e2e test (like the one in ./ci/main.go)

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