GitHubでDockerコンテナイメージを作成してCI/CDパイプラインで自動的にDocker Hubにpushする

FROM ubuntu:22.04

ARG USER_NAME="builder"
ARG GROUP_NAME="builder"
ARG IMAGE_NAME

RUN if [ -z "${USER_NAME}"  ] || \
       [ -z "${IMAGE_NAME}"   ];   \
    then echo "Please specify args"; \
    exit 1; \
    fi

# basic
RUN apt update -y

# add user and group
RUN groupadd ${GROUP_NAME}
RUN useradd -g ${GROUP_NAME} -m ${USER_NAME}

# ESP-IDF Prerequisites
RUN apt install -y git wget flex bison gperf python3 python3-venv cmake ninja-build ccache libffi-dev libssl-dev dfu-util libusb-1.0-0

# Get ESP-IDF
USER ${USER_NAME}
RUN mkdir -p ~/esp
RUN git clone --recursive https://github.com/espressif/esp-idf.git -b v5.0.2 ~/esp/esp-idf

# ESP-IDF Set up the tools
RUN ~/esp/esp-idf/install.sh esp32
RUN echo "alias get_idf='. $HOME/esp/esp-idf/export.sh'" > ~/.bash_aliases

# Set Prompt
RUN echo PS1="'(docker)${IMAGE_NAME}:\w${PS1}'" >> ~/.bashrc

DOCKER_USERNAME ?= wurly
DOCKER_IMAGE_NAME ?= builder_esp32_esp-idf-v5

BUILD_ARGS := --build-arg IMAGE_NAME=${DOCKER_IMAGE_NAME}

.PHONY: build
build:
    docker build -t $(DOCKER_USERNAME)/$(DOCKER_IMAGE_NAME):latest $(BUILD_ARGS) .

.PHONY: push
push:
    echo ${DOCKER_PASSWORD} | docker login -u $(DOCKER_USERNAME) --password-stdin
    docker push $(DOCKER_USERNAME)/$(DOCKER_IMAGE_NAME):latest

.PHONY: ci-cd
ci-cd: build push

.PHONY: build-tag
build-tag:
    docker build -t $(DOCKER_USERNAME)/$(DOCKER_IMAGE_NAME):$(TAG) $(BUILD_ARGS) .

.PHONY: push-tag
push-tag:
    echo ${DOCKER_PASSWORD} | docker login -u $(DOCKER_USERNAME) --password-stdin
    docker push $(DOCKER_USERNAME)/$(DOCKER_IMAGE_NAME):$(TAG)

name: CI/CD Pipeline

on:
  push:
    branches:
      - main
    tags:
      - '*'

jobs:
  build-and-push:
    runs-on: ubuntu-22.04

    steps:
    - name: Checkout code
      uses: actions/checkout@v2

    - name: Build and push Docker image
      env:
        DOCKER_USERNAME: ${{ secrets.DOCKERHUB_USERNAME }}
        DOCKER_PASSWORD: ${{ secrets.DOCKERHUB_PASSWORD }}
      run: |
        if [[ "$GITHUB_REF" == "refs/tags/"* ]]; then
          # get tag name (remove "refs/tags/")
          TAG=${GITHUB_REF#refs/tags/}
          make build-tag TAG=$TAG
          make push-tag TAG=$TAG
        else
          make ci-cd
        fi