Merge pull request kubernetes-sigs#7284 from sbueringer/pr-update-job-doc

📖 book: update job documentation + add test-infra config

Author: k8s-ci-robot

docs/book/src/reference/jobs.md

@@ -1,6 +1,7 @@
 # Jobs
 
 This document intents to provide an overview over our jobs running via Prow, GitHub actions and Google Cloud Build.
+It also documents the cluster-api specific configuration in test-infra.
 
 ## Builds and Tests running on the main branch
 
@@ -15,7 +16,7 @@ This document intents to provide an overview over our jobs running via Prow, Git
 Prow Presubmits:
 * [pull-cluster-api-build-main] `./scripts/ci-build.sh`
 * ✳️️ [pull-cluster-api-apidiff-main] `./scripts/ci-apidiff.sh`
-* [pull-cluster-api-verify] `./scripts/ci-verify.sh`
+* [pull-cluster-api-verify-main] `./scripts/ci-verify.sh`
 * [pull-cluster-api-test-main] `./scripts/ci-test.sh`
 * [pull-cluster-api-test-mink8s-main] `./scripts/ci-test.sh`
 * [pull-cluster-api-e2e-main] `./scripts/ci-e2e.sh`
@@ -30,8 +31,17 @@ Prow Presubmits:
   * GINKGO_FOCUS: `[K8s-Upgrade]`
 
 GitHub Presubmit Workflows:
-* golangci-lint: golangci/golangci-lint-action@v2 (locally via `make lint`)
-* verify: kubernetes-sigs/[email protected] verifier
+* golangci-lint: golangci/golangci-lint-action
+  * Runs golangci-lint. Can be run locally via `make lint`.
+* verify: kubernetes-sigs/kubebuilder-release-tools verifier
+  * Verifies the PR titles have a valid format, i.e. contains one of the valid icons.
+  * Verifies the PR description is valid, i.e. is long enough.
+* Check PR Markdown links (run when markdown files changed)
+  * Checks markdown for broken links. 
+* dependabot (run on dependabot PRs)
+  * Regenerates Go modules and code.
+* release (run on tags)
+  * Creates a GitHub release with release notes for the tag.
 
 ### Postsubmits
 
@@ -42,14 +52,13 @@ Prow Postsubmits:
 
 Prow Periodics:
 * [periodic-cluster-api-test-main] `./scripts/ci-test.sh`
+* [periodic-cluster-api-test-mink8s-main] `./scripts/ci-test.sh`
+  * KUBEBUILDER_ENVTEST_KUBERNETES_VERSION: `1.20.2` 
 * [periodic-cluster-api-e2e-main] `./scripts/ci-e2e.sh`
   * GINKGO_SKIP: `[Conformance] [K8s-Upgrade]|[IPv6]`
-* [periodic-cluster-api-e2e-upgrade-v0-3-to-main] `./scripts/ci-e2e.sh`
-  * GINKGO_FOCUS: `[clusterctl-Upgrade]`
-* [periodic-cluster-api-e2e-upgrade-v1-0-to-main] `./scripts/ci-e2e.sh`
-  * GINKGO_FOCUS: `[clusterctl-Upgrade]`
 * [periodic-cluster-api-e2e-mink8s-main] `./scripts/ci-e2e.sh`
   * GINKGO_SKIP: `[Conformance] [K8s-Upgrade]|[IPv6]|[ClusterClass]`
+  * KUBERNETES_VERSION_MANAGEMENT: `stable-1.20`, CLUSTER_TOPOLOGY: `false`
 * [periodic-cluster-api-e2e-workload-upgrade-1-18-1-19-main] `./scripts/ci-e2e.sh` FROM: `stable-1.18` TO: `stable-1.19`
   * GINKGO_FOCUS: `[K8s-Upgrade]`
 * [periodic-cluster-api-e2e-workload-upgrade-1-19-1-20-main] `./scripts/ci-e2e.sh` FROM: `stable-1.19` TO: `stable-1.20`
@@ -61,20 +70,39 @@ Prow Periodics:
 * [periodic-cluster-api-e2e-workload-upgrade-1-22-1-23-main] `./scripts/ci-e2e.sh` FROM: `stable-1.22` TO: `stable-1.23`
   * GINKGO_FOCUS: `[K8s-Upgrade]`
 * [periodic-cluster-api-e2e-workload-upgrade-1-23-1-24-main] `./scripts/ci-e2e.sh` FROM: `stable-1.23` TO: `stable-1.24`
+  * GINKGO_FOCUS: `[K8s-Upgrade]`
 * [periodic-cluster-api-e2e-workload-upgrade-1-24-1-25-main] `./scripts/ci-e2e.sh` FROM: `stable-1.24` TO: `stable-1.25`
+  * GINKGO_FOCUS: `[K8s-Upgrade]`
 * [periodic-cluster-api-e2e-workload-upgrade-1-25-latest-main] `./scripts/ci-e2e.sh` FROM: `stable-1.25` TO: `ci/latest-1.26`
   * GINKGO_FOCUS: `[K8s-Upgrade]`
 * [cluster-api-push-images-nightly] Google Cloud Build: `make release-staging-nightly`, `make release-capd-staging-nightly`
 
-## Builds and Tests running on releases
+## Test-infra configuration
+
+* config/jobs/image-pushing/k8s-staging-cluster-api.yaml
+  * Configures nightly and postsubmit jobs to push images and manifests. 
+* config/jobs/kubernetes-sigs/cluster-api/
+  * Configures Cluster API  presubmit and periodic jobs.
+* config/testgrids/kubernetes/sig-cluster-lifecycle/config.yaml
+  * Configures Cluster API testgrid dashboards.  
+* config/prow/config.yaml
+  * `branch-protection` and `tide` are configured to make the golangci-lint GitHub action mandatory for merge
+* config/prow/plugins.yaml
+  * `triggers`: configures `/ok-to-test`
+  * `approve`: disable auto-approval of PR authors, ignore GitHub reviews (/approve is explicitly required)
+  * `milestone_applier`: configures that merged PRs are automatically added to the correct milestone after merge
+  * `repo_milestone`: configures `cluster-api-maintainers` as maintainers
+  * `require_matching_label`: configures `needs-triage`
+  * `plugins`: enables `milestone`, `override` and `require-matching-label` plugins
+  * `external_plugins`: enables `cherrypicker`
+* label_sync/labels.yaml
+  * Configures labels for the `cluster-api` repository. 
 
-GitHub (On Release) Workflows:
-* Update Homebrew Formula On Release: dawidd6/action-homebrew-bump-formula@v3 clusterctl
 
 <!-- links -->
 [pull-cluster-api-build-main]: https://testgrid.k8s.io/sig-cluster-lifecycle-cluster-api#capi-pr-build-main
 [pull-cluster-api-apidiff-main]: https://testgrid.k8s.io/sig-cluster-lifecycle-cluster-api#capi-pr-apidiff-main
-[pull-cluster-api-verify]: https://testgrid.k8s.io/sig-cluster-lifecycle-cluster-api#capi-pr-verify-main
+[pull-cluster-api-verify-main]: https://testgrid.k8s.io/sig-cluster-lifecycle-cluster-api#capi-pr-verify-main
 [pull-cluster-api-test-main]: https://testgrid.k8s.io/sig-cluster-lifecycle-cluster-api#capi-pr-test-main
 [pull-cluster-api-test-mink8s-main]: https://testgrid.k8s.io/sig-cluster-lifecycle-cluster-api#capi-pr-test-mink8s-main
 [pull-cluster-api-e2e-main]: https://testgrid.k8s.io/sig-cluster-lifecycle-cluster-api#capi-pr-e2e-main
@@ -83,6 +111,7 @@ GitHub (On Release) Workflows:
 [pull-cluster-api-e2e-full-main]: https://testgrid.k8s.io/sig-cluster-lifecycle-cluster-api#capi-pr-e2e-full-main
 [pull-cluster-api-e2e-workload-upgrade-1-25-latest-main]: https://testgrid.k8s.io/sig-cluster-lifecycle-cluster-api#capi-pr-e2e-main-1-25-latest
 [periodic-cluster-api-test-main]: https://testgrid.k8s.io/sig-cluster-lifecycle-cluster-api#capi-test-main
+[periodic-cluster-api-test-mink8s-main]: https://testgrid.k8s.io/sig-cluster-lifecycle-cluster-api#capi-test-mink8s-main
 [periodic-cluster-api-e2e-main]: https://testgrid.k8s.io/sig-cluster-lifecycle-cluster-api#capi-e2e-main
 [periodic-cluster-api-e2e-upgrade-v0-3-to-main]: https://testgrid.k8s.io/sig-cluster-lifecycle-cluster-api#capi-e2e-upgrade-v0-3-to-main
 [periodic-cluster-api-e2e-upgrade-v1-0-to-main]: https://testgrid.k8s.io/sig-cluster-lifecycle-cluster-api#capi-e2e-upgrade-v1-0-to-main