Packaging

To build the images we use

Servitør’s Dockerfile:

FROM golang:latest as builder
WORKDIR /go/src/servitor
COPY *.go /go/src/servitor/
COPY go.* /go/src/servitor/
COPY Makefile /go/src/servitor/
RUN make prep
RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 make build

# package the binary into a container
FROM scratch
COPY --from=builder /go/src/servitor/servitor /servitor
CMD ["/servitor"]

Barista’s Dockerfile

FROM python:3.8-slim-buster
WORKDIR /app
COPY requirements.txt requirements.txt
RUN pip install -r requirements.txt
COPY barista.py .
CMD [ "python3", "./barista.py"]

Don’t forget it’s requirements.txt

mysql-connector-python
peewee
pymysql
python-dateutil
requests

For both, the GitHub Docker Build Action is the same .github/workflows/docker.yml

name: Docker Build

on:
  push:
    branches: [ "main" ]

jobs:
  push_to_registry:
    name: Build and push Docker image to Docker Hub

    runs-on: ubuntu-latest

    steps:
      - name: Check out the repo
        uses: actions/checkout@v3

      - name: Log in to Docker Hub
        uses: docker/login-action@v2
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v4
        with:
          images: ${{ github.repository }}

      - name: Build and push Docker image
        uses: docker/build-push-action@v4
        with:
          context: .
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}