先决条件

您想要构建和推动的工程存在 docker 文件。
该项目有一个 GitHub 仓库。
存在一个集装箱登记册,可以将图像推向。
A docker 注册的用户名和密码(在 GuitHub 机密中)

对于这个项目,我从基本的.NET Core ASP.NET项目和由骑士创建的默认杜克文件开始。

嵌入文件

此 Docker 文件是一个多阶段的建筑, 用于构建工程, 然后将输出复制到运行时图像。

对于这个预示, 当我使用尾风CSS时, 我还需要安装 Node.js 并运行尾风CSS 构建命令。

# Install Node.js v20.x
RUN apt-get update && apt-get install -y curl \
    && curl -fsSL https://deb.nodesource.com/setup_20.x -o nodesource_setup.sh \
    && bash nodesource_setup.sh \
    && apt-get install -y nodejs \
    && rm -f nodesource_setup.sh \
    && rm -rf /var/lib/apt/lists/*

这将下载最新版本的Node.js (在撰写时), 并将其安装到构建图像中。

在文件的后一页


FROM mcr.microsoft.com/dotnet/aspnet:8.0 AS base
USER $APP_UID
WORKDIR /app
EXPOSE 8080
EXPOSE 8081

FROM mcr.microsoft.com/dotnet/sdk:8.0 AS build
ARG BUILD_CONFIGURATION=Release

# Install Node.js v20.x
RUN apt-get update && apt-get install -y curl \
    && curl -fsSL https://deb.nodesource.com/setup_20.x -o nodesource_setup.sh \
    && bash nodesource_setup.sh \
    && apt-get install -y nodejs \
    && rm -f nodesource_setup.sh \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /src
COPY ["Mostlylucid/Mostlylucid.csproj", "Mostlylucid/"]
RUN dotnet restore "Mostlylucid/Mostlylucid.csproj"
COPY . .
WORKDIR "/src/Mostlylucid"

# Copy package.json and package-lock.json and install npm dependencies
COPY package*.json ./
RUN npm install

# Ensure npm-run-all is available and install npm dependencies
RUN npm --version
RUN npx tailwindcss -i ./src/css/main.css -o ./wwwroot/css/dist/main.css

RUN dotnet build "Mostlylucid.csproj" -c $BUILD_CONFIGURATION -o /app/build


FROM build AS publish
RUN dotnet publish "Mostlylucid.csproj" -c $BUILD_CONFIGURATION -o /app/publish /p:UseAppHost=false

FROM base AS final
WORKDIR /app
COPY --from=publish /app/publish .
ENTRYPOINT ["dotnet", "Mostlylucid.dll"]

GitHub 行动组织

这个网站的GitHub Action 是一个简单的构建和推动行动,是推到主分支时触发的。 https://github.com/scottgal/ mostlylucidweb/blob/main/.github/workflows/docker-image.yml https://github.com/scottgal/ mostlylucidweb/blob/main/.gitub/workflows/docker-image.yml 。

此动作检查仓库, 登录到 Docker 枢纽, 设置 Docker Buildx, 缓存 Docker 层, 构建并标记 Docker 图像, 然后将图像推到 Docker 枢纽。

在 docker 拼写文件中

name: Docker Image CI

on:
  push:
    branches: [ "main" ]
  pull_request:
    branches: [ "main" ]

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

    steps:
    - name: Check out the repository
      uses: actions/checkout@v4

    - name: Log in to Docker Hub
      run: echo "${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}" | docker login -u "${{ secrets.DOCKER_HUB_USER_NAME }}" --password-stdin

    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v2

    - name: Cache Docker layers
      uses: actions/cache@v3
      with:
        path: /tmp/.buildx-cache
        key: ${{ runner.os }}-buildx-${{ github.sha }}
        restore-keys: |
          ${{ runner.os }}-buildx-

    - name: Build and tag the Docker image
      id: build
      run: |
        TIMESTAMP=$(date +%s)
        echo "TIMESTAMP=$TIMESTAMP" >> $GITHUB_ENV
        docker build . --file Mostlylucid/Dockerfile --tag ${{ secrets.DOCKER_HUB_USER_NAME }}/mostlylucid:latest --tag ${{ secrets.DOCKER_HUB_USER_NAME }}/mostlylucid:$TIMESTAMP

    - name: Push the Docker image to Docker Hub
      run: |
        docker push ${{ secrets.DOCKER_HUB_USER_NAME }}/mostlylucid:latest
        docker push ${{ secrets.DOCKER_HUB_USER_NAME }}/mostlylucid:${{ env.TIMESTAMP }}