Test pull requests using github actions

.github/workflows/ci.yaml

@@ -0,0 +1,117 @@
+name: CI
+
+on:
+  pull_request:
+    branches:
+      - "*"
+  push:
+    branches:
+      - master
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Set up Go 1.14
+        uses: actions/setup-go@v1
+        with:
+          go-version: 1.14
+        id: go
+
+      - name: Checkout
+        uses: actions/checkout@v1
+
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: crazy-max/ghaction-docker-buildx@v1
+        with:
+          buildx-version: latest
+          qemu-version: latest
+
+      - name: Available platforms
+        run: echo ${{ steps.buildx.outputs.platforms }}
+
+      - name: Prepare Host
+        run: |
+          sudo apt-get -qq update || true
+          sudo apt-get install -y pigz
+          curl -LO https://storage.googleapis.com/kubernetes-release/release/v1.17.0/bin/linux/amd64/kubectl
+          chmod +x ./kubectl
+          sudo mv ./kubectl /usr/local/bin/kubectl
+
+      - name: Build images
+        env:
+          TAG: 1.0.0-dev
+          ARCH: amd64
+          REGISTRY: ingress-controller
+        run: |
+          echo "building images..."
+          make clean-image build image
+          make -C test/e2e-image image
+
+          echo "creating images cache..."
+          docker save \
+            nginx-ingress-controller:e2e \
+            ingress-controller/nginx-ingress-controller:1.0.0-dev \
+            | pigz > docker.tar.gz
+
+      - name: cache
+        uses: actions/upload-artifact@v2
+        with:
+          name: docker.tar.gz
+          path: docker.tar.gz
+
+  kubernetes:
+    name: Kubernetes
+    runs-on: ubuntu-latest
+    needs: build
+    strategy:
+      matrix:
+        k8s: [v1.14.10, v1.15.11, v1.16.9, v1.17.5, v1.18.4]
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v1
+
+      - name: cache
+        uses: actions/download-artifact@v2
+        with:
+          name: docker.tar.gz
+
+      - name: Create Kubernetes ${{ matrix.k8s }} cluster
+        id: kind
+        uses: engineerd/setup-kind@v0.4.0
+        with:
+          version: v0.8.1
+          config: test/e2e/kind.yaml
+          image: kindest/node:${{ matrix.k8s }}
+
+      # delete-artifact
+      - uses: geekyeggo/delete-artifact@v1
+        with:
+          name: docker.tar.gz
+          failOnError: false
+
+      - name: Prepare cluster for testing
+        id: local-path
+        run: |
+          kubectl version
+          echo
+          echo "installing helm 3..."
+          curl -sSL https://raw.githubusercontent.com/helm/helm/master/scripts/get-helm-3 | bash
+
+      - name: Load images from cache
+        run: |
+          echo "loading docker images..."
+          pigz -dc docker.tar.gz | docker load
+
+      - name: Run e2e tests
+        env:
+          KIND_CLUSTER_NAME: kind
+          SKIP_CLUSTER_CREATION: true
+          SKIP_IMAGE_CREATION: true
+        run: |
+          kind get kubeconfig > $HOME/.kube/kind-config-kind
+          make kind-e2e-test