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Update 0034-build-docker-with-kaniko.md

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Ferenc Hammerl
2022-10-04 16:33:41 +02:00
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docs/adrs/0034-build-docker-with-kaniko.md
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@@ -21,8 +21,10 @@ Whether using dind/docker-in-docker or Kaniko, in this ADR I will refer to these
## Interface
- You will set `containerMode:kubernetes` when creating a runner - this is mandatory as we're only changing the behaviour of our k8s hooks
- The user will have to provide a port to a (cluster-local) docker registry into which the Kaniko builder container can push the image
- Currently it is provided using the `ACTIONS_RUNNER_CONTAINER_HOOKS_REGISTRY_NODE_PORT` env var
- The hooks then build up a URI like `localhost:${registryNodePort()}/${generated-random-string-handle-image}`
- `ACTIONS_RUNNER_CONTAINER_HOOKS_REGISTRY_HOST` # Registry (service) name for kaniko where to push, e.g. 'docker-registry', kaniko pushes to this domain
- `ACTIONS_RUNNER_CONTAINER_HOOKS_REGISTRY_PORT` # Container (service) port of the registry, e.g. 5000, kaniko pushes through this port
- `ACTIONS_RUNNER_CONTAINER_HOOKS_REGISTRY_NODE_PORT` # NodePort - the K8S job will pull the image from here
- The hooks then build up a URI like `localhost:${registryNodePort()}/${generated-random-string-handle-image}` for the k8s job to pull from
- `localhost` is the current limitation enforcing the existence of a docker registry exposed through the `nodePort` of a k8s service
- To execute a container-action, we run a k8s job by loading the image from the specified registry
- (TBD) Our hooks will then remove the image from the registry