ci: build container on release (#396)

* new (CI): optimized Dockerfile; labeled Dockerfile; Github Action to build container; edit docker-compose

* new (CI): rename secrets

* CI: edit registry name

* CI: edit registry namespace

* CI: do repeat yourself in GHA

* CI: fix maintainers; debug version tag

* CI: add rpc to env file

* CI: build the same image in parallel, what a joke

* CI: fix matrix

* CI: debug matrix

* CI: debug matrix 2

* CI: according to doc this should work

* CI: proudly move it to parity namespace

* CI: add docker pull to README

.env.docker

@@ -10,3 +10,4 @@ SAS_EXPRESS_BIND_HOST=0.0.0.0
 # Port exposed by the container
 SAS_EXPRESS_PORT=8080
 
+SAS_SUBSTRATE_WS_URL=wss://rpc.polkadot.io

.github/workflows/publish-release-container.yml

@@ -0,0 +1,51 @@
+name: Build and Publish container for new releases
+
+on:
+  release:
+    types:
+      - published
+
+jobs:
+  build:
+    name:                         Build and push image
+    runs-on:                      ubuntu-latest
+    strategy:
+      matrix:
+        # this matrix runs the jobs twice, in parallel. This is due to
+        # both buildah actions can't manage more than one image tag.
+        tag:
+          - latest
+          - ${{ github.event.release.tag_name }}
+    env:
+      REGISTRY:                   docker.io/parity
+      IMAGE_NAME:                 substrate-api-sidecar
+      VERSION:                    ${{ github.event.release.tag_name }}
+
+    steps:
+    - uses:                       actions/checkout@v2
+
+    - name:                       Build Image tagged ${{ matrix.tag }}
+      uses:                       redhat-actions/buildah-build@v1
+      with:
+        image:                    ${{ env.IMAGE_NAME }}
+        tag:                      ${{ matrix.tag }}
+        dockerfiles: |
+          ./Dockerfile
+        build-args: |
+          VERSION=${{ env.VERSION }}
+          VCS_REF=${{ github.ref }}
+          BUILD_DATE=${{ github.event.release.published_at }}
+
+    - name:                       Push image tagged ${{ matrix.tag }} to docker.io
+      id:                         push-to-dockerhub
+      uses:                       redhat-actions/push-to-registry@v1
+      with:
+        registry:                 ${{ env.REGISTRY }}
+        image:                    ${{ env.IMAGE_NAME }}
+        tag:                      ${{ matrix.tag }}
+        username:                 ${{ secrets.DOCKERHUB_USERNAME }}
+        password:                 ${{ secrets.DOCKERHUB_TOKEN }}
+
+    - name:                       Check the image
+      run: |
+        echo "New image has been pushed to ${{ steps.push-to-dockerhub.outputs.registry-path }}"

Dockerfile

@@ -1,18 +1,34 @@
-FROM node:15 as builder
-LABEL author="[email protected]"
+FROM docker.io/library/node:15 as builder
 
 WORKDIR /opt/builder
 
 COPY . .
-RUN curl --proto '=https' --tlsv1.2 https://sh.rustup.rs -sSf | sh -s -- -y && \
-    . $HOME/.cargo/env && \
-    cargo install wasm-pack && \
-    yarn install && \
+
+RUN yarn install && \
     yarn build
 
 # ---------------------------------
 
-FROM node:15-alpine
+FROM docker.io/library/node:15-alpine
+
+# metadata
+ARG VERSION=""
+ARG VCS_REF=master
+ARG BUILD_DATE=""
+
+LABEL summary="Substrate-api-sidecar." \
+	name="parity/substrate-api-sidecar" \
+	maintainer="[email protected], [email protected]" \
+	version="${VERSION}" \
+	description="Substrate-api-sidecar image." \
+	io.parity.image.vendor="Parity Technologies" \
+	io.parity.image.source="https://github.com/paritytech/substrate-api-sidecar/blob/\
+${VCS_REF}/Dockerfile" \
+	io.parity.image.documentation="https://github.com/paritytech/substrate-api-sidecar/\
+blob/${VCS_REF}/README.md" \
+	io.parity.image.revision="${VCS_REF}" \
+	io.parity.image.created="${BUILD_DATE}"
+
 WORKDIR /usr/src/app
 
 COPY --from=builder /opt/builder /usr/src/app

README.md

@@ -206,7 +206,15 @@ CALC_DEBUG=1 sh calc/build.sh
 
 ## Docker
 
-### Build
+### Pull the latest release
+
+```bash
+docker pull docker.io/parity/substrate-api-sidecar:latest
+```
+
+The specific image tag matches the release version.
+
+### Or build from source
 
 ```bash
 yarn build:docker

docker-compose.yml

@@ -2,7 +2,7 @@ version: "3.8"
 services:
   polkadot:
     container_name: polkadot
-    image: chevdor/polkadot:latest
+    image: docker.io/parity/polkadot:latest
     volumes:
       - ~/polkadot-data:/data
     # ports:
@@ -11,7 +11,7 @@ services:
 
   sidecar:
     # build: .
-    image: chevdor/substrate-api-sidecar
+    image: docker.io/parity/substrate-api-sidecar:latest
     ports:
       - "8080:8080"
     environment: