try optimizing the build

Author: snow-jallen

.github/workflows/build-and-push.yml

@@ -8,17 +8,14 @@ on:
 
 jobs:
   build-and-push:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04-arm
     permissions:
       contents: read
       packages: write
 
     steps:
     - uses: actions/checkout@v4
 
-    - name: Set up QEMU
-      uses: docker/setup-qemu-action@v3
-
     - name: Set up Docker Buildx
       uses: docker/setup-buildx-action@v3
 

.github/workflows/build-base-image.yml

@@ -0,0 +1,38 @@
+name: Build and Push Base Image
+
+on:
+  push:
+    paths:
+      - 'HomeSpeaker.Server2/Dockerfile.base'
+  workflow_dispatch:
+
+jobs:
+  build-base:
+    runs-on: ubuntu-24.04-arm
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+
+    - name: Log in to GitHub Container Registry
+      uses: docker/login-action@v3
+      with:
+        registry: ghcr.io
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+
+    - name: Build and push base image
+      uses: docker/build-push-action@v5
+      with:
+        context: .
+        file: ./HomeSpeaker.Server2/Dockerfile.base
+        platforms: linux/arm64
+        push: true
+        tags: ghcr.io/snow-jallen/homespeaker-base:latest
+        cache-from: type=gha
+        cache-to: type=gha,mode=max

HomeSpeaker.Server2/Dockerfile

@@ -1,22 +1,9 @@
 # syntax=docker/dockerfile:1
-# See https://aka.ms/customizecontainer to learn how to customize your debug container and how Visual Studio uses this Dockerfile to build your images for faster debugging.
-
-FROM mcr.microsoft.com/dotnet/aspnet:10.0 AS base
-
-# Install runtime dependencies in one layer with cleanup
-# --no-install-recommends: Don't install recommended packages (saves 100-200MB)
-# apt-get clean + rm: Remove apt cache (saves 50-100MB)
-RUN apt-get update \
-    && apt-get install -y --no-install-recommends \
-        sox \
-        libsox-fmt-mp3 \
-        alsa-utils \
-        vlc \
-        ffmpeg \
-        curl \
-        iputils-ping \
-    && apt-get clean \
-    && rm -rf /var/lib/apt/lists/*
+# App image — builds on the pre-built base (ghcr.io/snow-jallen/homespeaker-base)
+# which contains all system packages (sox, ffmpeg, vlc, etc.).
+# Rebuild the base image via the build-base-image.yml workflow when packages change.
+
+FROM ghcr.io/snow-jallen/homespeaker-base:latest AS base
 
 HEALTHCHECK --interval=30s --timeout=10s --start-period=60s --retries=3 \
     CMD curl -f http://localhost:8080/health || exit 1
@@ -48,7 +35,6 @@ RUN --mount=type=cache,target=/root/.nuget/packages \
 
 FROM base AS final
 
-RUN grep 1000 /etc/passwd && usermod -aG audio ubuntu
 USER ubuntu
 
 WORKDIR /app

HomeSpeaker.Server2/Dockerfile.base

@@ -0,0 +1,24 @@
+# syntax=docker/dockerfile:1
+# Base image with system-level dependencies that change infrequently.
+# Rebuild and push manually (or via build-base-image.yml workflow) when
+# packages need to be added/updated. The app image (Dockerfile) builds on top
+# of this, skipping the slow apt-get step on every push.
+
+FROM mcr.microsoft.com/dotnet/aspnet:10.0
+
+# Install runtime dependencies in one layer with cleanup
+# --no-install-recommends: Don't install recommended packages (saves 100-200MB)
+# apt-get clean + rm: Remove apt cache (saves 50-100MB)
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends \
+        sox \
+        libsox-fmt-mp3 \
+        alsa-utils \
+        vlc \
+        ffmpeg \
+        curl \
+        iputils-ping \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
+RUN grep 1000 /etc/passwd && usermod -aG audio ubuntu