feat: automate base image build for GitHub Actions

- Added new GitHub Actions to docker-main.yml to build and push base images
- Created a new Dockerfile.base with the base packages installation
- Modified the existing Dockerfile to use the new base image
- Created a new Dockerfile.build with the build stage to reduce the size of the final image

.github/workflows/docker-main.yml

@@ -13,6 +13,45 @@ env:
   IMAGE_NAME: ${{ github.event.repository.name }}
 
 jobs:
+  build-base-docker:
+    runs-on: ubuntu-latest
+    if: startsWith(github.ref, 'refs/tags/v')  # 只在发布新版本时构建基础镜像
+    steps:
+      - uses: actions/checkout@v3
+      - name: Login to ${{ env.REGISTRY }}
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      - name: Build and push base image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: Dockerfile.base
+          push: true
+          tags: ${{ env.REGISTRY }}/${{ github.actor }}/${{ env.IMAGE_NAME }}:base_main
+
+  build-devel-docker:
+    runs-on: ubuntu-latest
+    if: startsWith(github.ref, 'refs/tags/v')  # 只在发布新版本时构建基础镜像
+    steps:
+      - uses: actions/checkout@v3
+      - name: Login to ${{ env.REGISTRY }}
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      - name: Build and push base image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: Dockerfile.base
+          push: true
+          tags: ${{ env.REGISTRY }}/${{ github.actor }}/${{ env.IMAGE_NAME }}:devel_main
+
+
   docker:
     runs-on: ubuntu-latest
     steps:

Dockerfile

@@ -8,16 +8,16 @@
 # For a containerized dev environment, see Dev Containers: https://guides.rubyonrails.org/getting_started_with_devcontainer.html
 
 # Make sure RUBY_VERSION matches the Ruby version in .ruby-version
-ARG RUBY_VERSION=3.3.5
-FROM docker.io/library/ruby:$RUBY_VERSION-slim AS base
+# ARG RUBY_VERSION=3.3.5
+# FROM docker.io/library/ruby:$RUBY_VERSION-slim AS base
+ARG BASE_IMAGE=docker.io/songtianlun/today_ai_weather:base_main
+FROM ${BASE_IMAGE} AS base
 
 # Rails app lives here
 WORKDIR /rails
 
 # Install base packages
-RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y curl libjemalloc2 libvips sqlite3 libpq5 redis-tools && \
-    rm -rf /var/lib/apt/lists /var/cache/apt/archives
+# Move to Base Dockerfile.
 
 # Set production environment
 ENV RAILS_ENV="production" \
@@ -26,21 +26,13 @@ ENV RAILS_ENV="production" \
     BUNDLE_WITHOUT="development"
 
 # Throw-away build stage to reduce size of final image
-FROM base AS build
+# FROM base AS build
+ARG DEVEl_IMAGE=docker.io/songtianlun/today_ai_weather:devel_main
+FROM ${DEVEL_IMAGE} AS build
 
 # Install packages needed to build gems and node modules
-RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y build-essential git node-gyp pkg-config python-is-python3 libpq-dev && \
-    rm -rf /var/lib/apt/lists /var/cache/apt/archives
-
 # Install JavaScript dependencies
-ARG NODE_VERSION=20.17.0
-ARG YARN_VERSION=1.22.22
-ENV PATH=/usr/local/node/bin:$PATH
-RUN curl -sL https://github.com/nodenv/node-build/archive/master.tar.gz | tar xz -C /tmp/ && \
-    /tmp/node-build-master/bin/node-build "${NODE_VERSION}" /usr/local/node && \
-    npm install -g yarn@$YARN_VERSION && \
-    rm -rf /tmp/node-build-master
+# Move to Devel Dockerfile.
 
 # Install application gems
 COPY Gemfile Gemfile.lock ./

Dockerfile.base

@@ -0,0 +1,8 @@
+ARG RUBY_VERSION=3.3.5
+# Dockerfile.base
+FROM docker.io/library/ruby:$RUBY_VERSION-slim
+
+# Install base packages
+RUN apt-get update -qq && \
+    apt-get install --no-install-recommends -y curl libjemalloc2 libvips sqlite3 libpq5 redis-tools && \
+    rm -rf /var/lib/apt/lists /var/cache/apt/archives

Dockerfile.build

@@ -0,0 +1,30 @@
+ARG BASE_IMAGE=docker.io/your-username/today_ai_weather-base:main
+FROM ${BASE_IMAGE} AS base
+
+# Rails app lives here
+WORKDIR /rails
+
+# Install base packages, Move to Base Dockerfile.
+
+# Set production environment
+ENV RAILS_ENV="production" \
+    BUNDLE_DEPLOYMENT="1" \
+    BUNDLE_PATH="/usr/local/bundle" \
+    BUNDLE_WITHOUT="development"
+
+# Throw-away build stage to reduce size of final image
+FROM base AS build
+
+# Install packages needed to build gems and node modules
+RUN apt-get update -qq && \
+    apt-get install --no-install-recommends -y build-essential git node-gyp pkg-config python-is-python3 libpq-dev && \
+    rm -rf /var/lib/apt/lists /var/cache/apt/archives
+
+# Install JavaScript dependencies
+ARG NODE_VERSION=20.17.0
+ARG YARN_VERSION=1.22.22
+ENV PATH=/usr/local/node/bin:$PATH
+RUN curl -sL https://github.com/nodenv/node-build/archive/master.tar.gz | tar xz -C /tmp/ && \
+    /tmp/node-build-master/bin/node-build "${NODE_VERSION}" /usr/local/node && \
+    npm install -g yarn@$YARN_VERSION && \
+    rm -rf /tmp/node-build-master