Implement CI with GitHub Actions

.github/actions/kubebuilder/Dockerfile

@@ -0,0 +1,6 @@
+FROM giantswarm/tiny-tools
+
+COPY entrypoint.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
+
+ENTRYPOINT ["/entrypoint.sh"]

.github/actions/kubebuilder/action.yml

@@ -0,0 +1,9 @@
+name: 'kubebuilder'
+description: 'A GitHub Action to run kubebuilder commands'
+author: 'Stefan Prodan'
+branding:
+  icon: 'command'
+  color: 'blue'
+runs:
+  using: 'docker'
+  image: 'Dockerfile'

.github/actions/kubebuilder/entrypoint.sh

@@ -0,0 +1,12 @@
+#!/bin/sh -l
+
+VERSION=2.3.1
+
+curl -sL https://go.kubebuilder.io/dl/${VERSION}/linux/amd64 | tar -xz -C /tmp/
+
+mkdir -p $GITHUB_WORKSPACE/kubebuilder
+mv /tmp/kubebuilder_${VERSION}_linux_amd64/* $GITHUB_WORKSPACE/kubebuilder/
+ls -lh $GITHUB_WORKSPACE/kubebuilder/bin
+
+echo "::add-path::$GITHUB_WORKSPACE/kubebuilder/bin"
+echo "::add-path::$RUNNER_WORKSPACE/$(basename $GITHUB_REPOSITORY)/kubebuilder/bin"

.github/actions/kustomize/Dockerfile

@@ -0,0 +1,6 @@
+FROM giantswarm/tiny-tools
+
+COPY entrypoint.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
+
+ENTRYPOINT ["/entrypoint.sh"]

.github/actions/kustomize/action.yml

@@ -0,0 +1,9 @@
+name: 'kustomize'
+description: 'A GitHub Action to run kustomize commands'
+author: 'Stefan Prodan'
+branding:
+  icon: 'command'
+  color: 'blue'
+runs:
+  using: 'docker'
+  image: 'Dockerfile'

.github/actions/kustomize/entrypoint.sh

@@ -0,0 +1,12 @@
+#!/bin/sh -l
+
+VERSION=3.1.0
+curl -sfLo kustomize https://github.com/kubernetes-sigs/kustomize/releases/download/v${VERSION}/kustomize_${VERSION}_linux_amd64
+
+mkdir -p $GITHUB_WORKSPACE/bin
+cp ./kustomize $GITHUB_WORKSPACE/bin
+chmod +x $GITHUB_WORKSPACE/bin/kustomize
+ls -lh $GITHUB_WORKSPACE/bin
+
+echo "::add-path::$GITHUB_WORKSPACE/bin"
+echo "::add-path::$RUNNER_WORKSPACE/$(basename $GITHUB_REPOSITORY)/bin"

.github/workflows/e2e.yaml

@@ -0,0 +1,46 @@
+name: e2e
+
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+
+jobs:
+  kind:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Restore Go cache
+        uses: actions/cache@v1
+        with:
+          path: ~/go/pkg/mod
+          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+          restore-keys: |
+            ${{ runner.os }}-go-
+      - name: Setup Go
+        uses: actions/setup-go@v2-beta
+        with:
+          go-version: 1.13.x
+      - name: Setup Kubernetes
+        uses: engineerd/setup-kind@v0.3.0
+      - name: Setup Kustomize
+        uses: ./.github/actions/kustomize
+      - name: Setup Kubebuilder
+        uses: ./.github/actions/kubebuilder
+      - name: Run tests and build image
+        run: make docker-build IMG=test/source-controller:latest
+        env:
+          KUBEBUILDER_ASSETS: ${{ github.workspace }}/kubebuilder/bin
+      - name: Load test image
+        run: kind load docker-image test/source-controller:latest
+      - name: Deploy controller
+        run: make dev-deploy IMG=test/source-controller:latest
+        env:
+          KUBEBUILDER_ASSETS: ${{ github.workspace }}/kubebuilder/bin
+      - name: Debug failure
+        if: failure()
+        run: |
+          kubectl -n sourcer-system get all
+          kubectl -n sourcer-system logs deploy/sourcer-controller

.gitignore

@@ -14,3 +14,4 @@
 # Dependency directories (remove the comment below to include it)
 # vendor/
 bin/
+tmp/

Makefile

@@ -35,9 +35,13 @@ uninstall: manifests
 
 # Deploy controller in the configured Kubernetes cluster in ~/.kube/config
 deploy: manifests
-	cd config/manager && kustomize edit set image controller=${IMG}
+	cd config/manager && kustomize edit set image fluxcd/sourcer=${IMG}
 	kustomize build config/default | kubectl apply -f -
 
+# Deploy controller dev image in the configured Kubernetes cluster in ~/.kube/config
+dev-deploy: manifests
+	./hack/dev-deploy.sh $(IMG)
+
 # Generate manifests e.g. CRD, RBAC etc.
 manifests: controller-gen
 	$(CONTROLLER_GEN) $(CRD_OPTIONS) rbac:roleName=manager-role paths="./..." output:crd:artifacts:config=config/crd/bases
@@ -78,3 +82,5 @@ CONTROLLER_GEN=$(GOBIN)/controller-gen
 else
 CONTROLLER_GEN=$(shell which controller-gen)
 endif
+
+

config/manager/deployment.yaml

@@ -21,7 +21,8 @@ spec:
       terminationGracePeriodSeconds: 10
       containers:
       - name: manager
-        image: controller
+        image: fluxcd/sourcer
+        imagePullPolicy: IfNotPresent
         ports:
           - containerPort: 8080
             name: http

config/manager/kustomization.yaml

@@ -5,6 +5,5 @@ resources:
 - service.yaml
 - deployment.yaml
 images:
-- name: controller
-  newName: fluxcd/sourcer
+- name: fluxcd/sourcer
   newTag: 0.0.1-alpha.1

hack/dev-deploy.sh

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+
+set -o errexit
+
+IMG=$1
+TMP_DIR="$(git rev-parse --show-toplevel)/tmp"
+
+mkdir -p ${TMP_DIR}
+
+cat << EOF | tee ${TMP_DIR}/kustomization.yaml
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+namespace: sourcer-system
+namePrefix: sourcer-
+bases:
+- ../config/crd
+- ../config/rbac
+- ../config/manager
+EOF
+
+cd ${TMP_DIR} && kustomize edit set image fluxcd/sourcer=${IMG}
+kustomize build ${TMP_DIR} | kubectl apply -f -
+rm -rf ${TMP_DIR}
+kubectl -n sourcer-system rollout status deploy/sourcer-controller --timeout=1m