Better devcontainer

.devcontainer/Dockerfile

@@ -0,0 +1,46 @@
+# Use the same base image as the original devcontainer
+FROM mcr.microsoft.com/vscode/devcontainers/base:bullseye
+
+# Install Microsoft OpenJDK 17 and Docker
+RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
+    && apt-get -y install --no-install-recommends \
+        wget \
+        ca-certificates \
+        curl \
+        gnupg \
+        lsb-release \
+    && wget -q https://packages.microsoft.com/config/debian/11/packages-microsoft-prod.deb -O packages-microsoft-prod.deb \
+    && dpkg -i packages-microsoft-prod.deb \
+    && curl -fsSL https://download.docker.com/linux/debian/gpg | gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg \
+    && echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/debian $(lsb_release -cs) stable" | tee /etc/apt/sources.list.d/docker.list > /dev/null \
+    && apt-get update \
+    && apt-get -y install --no-install-recommends \
+        msopenjdk-17 \
+        docker-ce \
+        docker-ce-cli \
+        containerd.io \
+    && usermod -aG docker vscode `# Add vscode user to docker group for Docker access` \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/* \
+    && rm packages-microsoft-prod.deb
+
+# Switch to vscode user for the build
+USER vscode
+
+# Set working directory for build
+WORKDIR /tmp/build
+
+# Copy all project files for the build
+COPY --chown=vscode:vscode . ./
+
+# Pre-populate Gradle dependency and build caches by compiling all classes
+# Use --no-daemon to avoid leaving daemon processes running
+RUN export JAVA_HOME=/usr/lib/jvm/msopenjdk-17-amd64 && \
+    export PATH="$JAVA_HOME/bin:$PATH" && \
+    ./gradlew classes --no-daemon
+
+# Clean up the build directory but preserve gradle cache
+RUN rm -rf /tmp/build
+
+# Set default working directory for development
+WORKDIR /workspaces

.devcontainer/devcontainer.json

@@ -1,26 +1,12 @@
 {
   "name": "Application Insights Java Development Environment",
-  "image": "mcr.microsoft.com/vscode/devcontainers/base:bullseye",
-  "features": {
-    "ghcr.io/devcontainers/features/java:1": {
-      "version": "17"
-    },
-    "ghcr.io/devcontainers/features/docker-in-docker:2": {
-      "version": "latest"
-    }
-  },
+  "image": "ghcr.io/microsoft/applicationinsights-java/devcontainer:latest",
   "customizations": {
     "vscode": {
       "extensions": [
-        "vscjava.vscode-java-pack",
-        "vscjava.vscode-gradle",
+        "redhat.java",
         "ms-vscode.vscode-json"
       ]
     }
-  },
-  "mounts": [
-    "source=gradle-cache,target=/home/vscode/.gradle,type=volume"
-  ],
-  "remoteUser": "vscode",
-  "postCreateCommand": "sudo chown -R vscode:vscode /home/vscode/.gradle"
+  }
 }

.github/workflows/build-devcontainer.yml

@@ -0,0 +1,55 @@
+name: Build Devcontainer Image
+
+on:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+    inputs:
+      force_rebuild:
+        description: 'Force rebuild without cache'
+        type: boolean
+        default: false
+
+jobs:
+  build-and-push-devcontainer:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Log in to Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ghcr.io/${{ github.repository }}/devcontainer
+          tags: |
+            type=ref,event=branch
+            type=sha
+            type=raw,value=latest,enable={{is_default_branch}}
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: .devcontainer/Dockerfile
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          platforms: linux/amd64
+          cache-from: ${{ github.event.inputs.force_rebuild != 'true' && 'type=gha' || '' }}
+          cache-to: type=gha,mode=max

smoke-tests/apps/gRPC/build.gradle.kts

@@ -5,13 +5,13 @@ plugins {
   id("com.google.protobuf") version "0.8.19"
 }
 
-val grpcVersion = "1.16.1"
-val nettyVersion = "4.1.30.Final"
+val grpcVersion = "1.26.0" // first version with support for arm64
+val nettyVersion = "4.1.42.Final"
 
 protobuf {
   protoc {
     // Download compiler rather than using locally installed version:
-    artifact = "com.google.protobuf:protoc:3.3.0"
+    artifact = "com.google.protobuf:protoc:3.5.0" // first version with support for arm64
   }
   plugins {
     id("grpc") {