Add e2e tests

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

.github/workflows/e2e.yml

@@ -0,0 +1,81 @@
+name: e2e
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 10 * * *' # everyday at 10am
+  push:
+    branches:
+      - master
+    tags:
+      - v*
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    matrix:
+      include:
+        -
+          registry: ''
+          slug: ghactionstest/ghactionstest
+          username_secret: DOCKERHUB_USERNAME
+          password_secret: DOCKERHUB_TOKEN
+        -
+          registry: ghcr.io
+          slug: ghcr.io/docker-ghactiontest/test
+          username_secret: GHCR_USERNAME
+          password_secret: GHCR_PAT
+        -
+          registry: registry.gitlab.com
+          slug: registry.gitlab.com/test1716/test
+          username_secret: GITLAB_USERNAME
+          password_secret: GITLAB_TOKEN
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+      -
+        name: Docker meta
+        id: docker_meta
+        uses: crazy-max/ghaction-docker-meta@v1
+        with:
+          images: ${{ matrix.slug }}
+      -
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      -
+        name: Login to Registry
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v1
+        with:
+          registry: ${{ matrix.registry }}
+          username: ${{ secrets[matrix.username_secret] }}
+          password: ${{ secrets[matrix.password_secret] }}
+      -
+        name: Build and push
+        uses: ./
+        with:
+          context: ./test
+          file: ./test/Dockerfile-multi
+          platforms: linux/386,linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64,linux/ppc64le,linux/s390x
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.docker_meta.outputs.tags }}
+          labels: ${{ steps.docker_meta.outputs.labels }}
+      -
+        name: Inspect image
+        if: github.event_name != 'pull_request'
+        run: |
+          docker pull ${{ matrix.slug }}:${{ steps.docker_meta.outputs.version }}
+          docker image inspect ${{ matrix.slug }}:${{ steps.docker_meta.outputs.version }}
+      -
+        name: Check manifest
+        if: github.event_name != 'pull_request'
+        run: |
+          docker buildx imagetools inspect ${{ matrix.slug }}:${{ steps.docker_meta.outputs.version }}
+      -
+        name: Dump context
+        if: always()
+        uses: crazy-max/ghaction-dump-context@v1