GitHub action to build and publish

.github/workflows/build_img.yml

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+name: Build ARM image and Publish to ECR
+
+on:
+  push:
+    branches:
+      - develop
+
+env:
+  BUILD_PATH: './app/build/'
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+      with:
+        repository: ${{ github.repository }}
+        ref: ${{ github.sha }}
+
+    - name: Install .NET Core SDK
+      uses: actions/setup-dotnet@v2
+      with:
+        dotnet-version: '7.0'
+
+    - name: Login to NuGet registry
+      run: |
+        dotnet nuget add source -u "${{ secrets.NUGET_GITHUB_USER }}" \
+                                -p "${{ secrets.NUGET_GITHUB_TOKEN }}" \
+                                --store-password-in-clear-text \
+                                -n github "https://nuget.pkg.github.com/OSTOLEX-Technologies/index.json"
+
+    - name: Restore packages
+      run: dotnet restore "castledice-game-server/castledice-game-server.csproj"
+
+    - name: Create build directory
+      run: mkdir -p ${{ env.BUILD_PATH }}
+
+    - name: Build project
+      run: dotnet build castledice-game-server/castledice-game-server.csproj -c Release -r linux-musl-arm64 -o ${{ env.BUILD_PATH }}
+
+    - name: Copy service files
+      run: |
+        cp Dockerfile ${{ env.BUILD_PATH }}
+        cp entrypoint.sh ${{ env.BUILD_PATH }}
+        cp appsettings.json ${{ env.BUILD_PATH }}
+        cp nlog.config ${{ env.BUILD_PATH }}
+
+    - name: Configure AWS Credentials
+      uses: aws-actions/configure-aws-credentials@v4
+      with:
+        aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
+        aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+        aws-region: ${{ secrets.AWS_REGION }}
+
+    - name: Login to Amazon ECR
+      id: login-ecr
+      uses: aws-actions/amazon-ecr-login@v2
+
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v2
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v2
+
+    - name: Build and push Docker image
+      uses: docker/build-push-action@v4
+      with:
+        context: ${{ env.BUILD_PATH }}
+        push: true
+        tags: ${{ steps.login-ecr.outputs.registry }}/castledice-game-server:latest
+        platforms: linux/amd64,linux/arm64

Dockerfile

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+FROM --platform=linux/arm64 130936542519.dkr.ecr.eu-central-1.amazonaws.com/castledice-riptide_server:latest
+
+ARG NET_VERSION=7.0.14
+ENV ASPNET_VERSION=$NET_VERSION
+
+RUN apk --no-cache add jq
+
+COPY . /app/
+RUN cp /usr/share/dotnet/shared/Microsoft.NETCore.App/$NET_VERSION/*.so /app/
+
+WORKDIR /app
+
+RUN chmod +x entrypoint.sh
+
+EXPOSE 7779
+
+CMD ["sh", "/app/entrypoint.sh"]

appsettings.json

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+{
+    "GameServerStartOptions": {
+      "Port": 7779,
+      "MaxClientCount": 1000
+    },
+    "MatchMakerConnectionOptions": {
+      "Ip": "127.0.0.1",
+      "Port": 7777
+    },
+    "AuthBackendConnectionOptions": {
+      "Url": "http://auth.castledice.xyz:8000"
+    },
+    "StorageBackendConnectionOptions": {
+      "Url": "http://135.181.148.125:8080"
+    }
+  }
+

entrypoint.sh

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+#!/bin/bash
+
+# Resolve "matchmaker" into IP
+host_ip=$(getent hosts matchmaker | awk '{print $1}')
+
+# Check if the host_ip is not empty
+if [ -n "$host_ip" ]; then
+  # Update config JSON file with IP
+  jq --arg host_ip "$host_ip" '.MatchMakerConnectionOptions.Ip = $host_ip' appsettings.json > temp.json && mv temp.json appsettings.json
+  echo "JSON file updated successfully."
+else
+  echo "Error: Unable to resolve the hostname."
+  exit 1
+fi
+
+dotnet /app/castledice-game-server.dll