feat(ci): add basic CI

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,13 @@
+**What this PR does / why we need it**:
+
+**Which issue this PR fixes**
+
+Fixes #
+
+**Special notes for your reviewer**:
+
+**PR Readiness Checklist**:
+
+Complete these before marking the PR as `ready to review`:
+
+- [ ] the `CHANGELOG.md` release notes have been updated to reflect significant changes

.github/dependabot.yml

@@ -0,0 +1,14 @@
+version: 2
+updates:
+- package-ecosystem: gomod
+  directory: /
+  schedule:
+    interval: daily
+  labels:
+  - dependencies
+- package-ecosystem: github-actions
+  directory: /
+  schedule:
+    interval: daily
+  labels:
+  - github_actions

.github/workflows/tests.yaml

@@ -0,0 +1,77 @@
+name: tests
+run-name: tests, branch:${{ github.ref_name }}, triggered by @${{ github.actor }}
+
+concurrency:
+  # Run only for most recent commit in PRs but for all tags and commits on main
+  # Ref: https://docs.github.com/en/actions/using-jobs/using-concurrency
+  group: ${{ github.workflow }}-${{ github.head_ref || github.sha }}
+  cancel-in-progress: true
+
+on:
+  pull_request:
+    branches:
+      - 'main'
+  push:
+    branches:
+      - 'main'
+      - 'release/*'
+    tags:
+      - '*'
+  workflow_dispatch: {}
+
+jobs:
+  generate:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+
+    - uses: actions/setup-go@v5
+      with:
+        go-version-file: go.mod
+
+    - uses: jdx/mise-action@v2
+      with:
+        install: false
+
+    - name: Generate
+      run: make generate
+
+    - name: Verify
+      run: make verify.diff
+
+  apply:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+
+    - uses: actions/setup-go@v5
+      with:
+        go-version-file: go.mod
+
+    - uses: jdx/mise-action@v2
+      with:
+        install: false
+
+    - name: Create k8s KinD Cluster
+      uses: helm/[email protected]
+
+    - name: Verify installing CRDs via kustomize works
+      run: make install
+
+    - name: Install and delete each sample one by one
+      run: make test.samples
+
+  # We need this step to fail the workflow if any of the previous steps failed or were cancelled.
+  # It allows to use this particular job as a required check for PRs.
+  # Ref: https://github.com/orgs/community/discussions/26822#discussioncomment-3305794
+  passed:
+    runs-on: ubuntu-latest
+    needs:
+      - generate
+      - apply
+    if: always()
+    steps:
+      - if: contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled')
+        run: |
+          echo "Some jobs failed or were cancelled."
+          exit 1

Makefile

@@ -106,7 +106,7 @@ verify.repo:
 
 .PHONY: verify.diff
 verify.diff:
-	./scripts/verify-diff.sh
+	@$(PROJECT_DIR)/scripts/verify-diff.sh $(PROJECT_DIR)
 
 .PHONY: verify.versions
 verify.versions:
@@ -169,3 +169,12 @@ generate.apidocs: crd-ref-docs
 # .PHONY: generate.cli-arguments
 # generate.cli-arguments-docs:
 # 	go run ./scripts/cli-arguments-docs-gen/main.go > ./docs/cli-arguments.md
+
+# Install CRDs into the K8s cluster specified in ~/.kube/config.
+.PHONY: install
+install: generate.crds kustomize
+	$(KUSTOMIZE) build config/crd | kubectl apply -f -
+
+.PHONY: test.samples
+test.samples: kustomize
+	find ./config/samples -not -name "kustomization.*" -type f | sort | xargs -I{} bash -c "kubectl apply -f {}; kubectl delete -f {}"

scripts/verify-diff.sh

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+#!/bin/bash
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+DIR="${1}"
+
+if git diff --quiet "${DIR}"
+then
+  echo "${DIR} up to date."
+else
+  echo "${DIR} appears to be out of date (make sure you've run 'make manifests' and 'make generate')"
+  echo "Diff output:"
+  git --no-pager diff "${DIR}"
+  exit 1
+fi