add workflow

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

@@ -0,0 +1,103 @@
+name: Build and Push Docker Image
+
+on:
+  workflow_call:
+    inputs:
+      image-name:
+        type: string
+        default: ${{ github.repository }}
+        description: "The name for the docker image (Default: Repository name)"
+      docker-file:
+        type: string
+        default: Dockerfile
+        description: "The path to the Dockerfile (Default: ./Dockerfile)"
+      docker-context:
+        type: string
+        default: .
+        description: "The context for the Docker build (Default: .)"
+      build-args:
+        type: string
+        description: "List of additional build contexts (e.g., name=path)"
+        required: false
+      platforms:
+        type: string
+        description: "List of platforms for which to build the image"
+        default: linux/amd64,linux/arm64
+      registry:
+        type: string
+        default: ghcr.io
+        description: "The registry to push the image to (Default: ghcr.io)"
+
+    secrets:
+      registry-user:
+        required: false
+      registry-password:
+        required: false
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - dockerfile: ./webapp/Dockerfile
+            image: ghcr.io/ls1intum/Hephaestus/hephaestus-webapp
+            context: ./webapp
+            path: webapp
+          - dockerfile: ./server/intelligence-service/Dockerfile
+            image: ghcr.io/ls1intum/Hephaestus/hephaestus-intelligence-service
+            context: ./server/intelligence-service
+            path: server/intelligence-service
+          - dockerfile: ./server/webhook-ingest/Dockerfile
+            image: ghcr.io/ls1intum/Hephaestus/hephaestus-webhook-ingest
+            context: ./server/webhook-ingest
+            path: server/webhook-ingest
+          - build_method: nixpacks
+            dockerfile: ./server/application-server/.nixpacks/Dockerfile
+            image: ghcr.io/ls1intum/Hephaestus/hephaestus-application-server
+            context: ./server/application-server
+            path: server/application-server
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 1
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+        with:
+          platforms: all
+
+      - name: Install Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ inputs.registry }}
+          username: ${{ secrets.registry-user || github.actor }}
+          password: ${{ secrets.registry-password || secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ inputs.registry }}/${{ inputs.image-name }}
+          tags: |
+            type=raw,value=latest,enable={{is_default_branch}}
+            type=ref,event=branch
+            type=ref,event=pr
+
+      - name: Build and push Docker Image
+        if: matrix.build_method == 'dockerfile'
+        uses: docker/build-push-action@v6
+        with:
+          context: ${{ inputs.docker-context }}
+          file: ${{ inputs.docker-file }}
+          platforms: ${{ inputs.platforms }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          build-args: ${{ inputs.build-args }}
+          push: true

server/application-server/.nixpacks/Dockerfile

@@ -0,0 +1,30 @@
+FROM ghcr.io/railwayapp/nixpacks:ubuntu-1722297819
+
+ENTRYPOINT ["/bin/bash", "-l", "-c"]
+WORKDIR /app/
+
+
+COPY .nixpacks/nixpkgs-59dc10b5a6f2a592af36375c68fda41246794b86.nix .nixpacks/nixpkgs-59dc10b5a6f2a592af36375c68fda41246794b86.nix
+RUN nix-env -if .nixpacks/nixpkgs-59dc10b5a6f2a592af36375c68fda41246794b86.nix && nix-collect-garbage -d
+RUN sudo apt-get update && sudo apt-get install -y --no-install-recommends wget
+
+ARG NIXPACKS_JDK_VERSION=21
+ARG NIXPACKS_METADATA=java
+
+ENV NIXPACKS_JDK_VERSION=$NIXPACKS_JDK_VERSION NIXPACKS_METADATA=$NIXPACKS_METADATA
+
+# setup phase
+# noop
+
+# build phase
+COPY . /app/.
+RUN --mount=type=cache,id=xE0e05wx0-m2/repository,target=/app/.m2/repository chmod +x ./mvnw
+RUN --mount=type=cache,id=xE0e05wx0-m2/repository,target=/app/.m2/repository ./mvnw -DskipTests clean package
+
+
+
+
+# start
+COPY . /app
+CMD ["java -Dserver.port=$PORT $JAVA_OPTS -jar target/*jar"]
+

server/application-server/.nixpacks/build.sh

@@ -0,0 +1 @@
+docker build server/application-server -f server/application-server/.nixpacks/Dockerfile -t hephaestus-application-server --build-arg NIXPACKS_JDK_VERSION=21 --build-arg NIXPACKS_METADATA=java

server/application-server/.nixpacks/nixpkgs-59dc10b5a6f2a592af36375c68fda41246794b86.nix

@@ -0,0 +1,21 @@
+{ }:
+
+let pkgs = import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/59dc10b5a6f2a592af36375c68fda41246794b86.tar.gz") { overlays = [  ]; };
+in with pkgs;
+  let
+    APPEND_LIBRARY_PATH = "${lib.makeLibraryPath [  ] }";
+    myLibraries = writeText "libraries" ''
+      export LD_LIBRARY_PATH="${APPEND_LIBRARY_PATH}:$LD_LIBRARY_PATH"
+      
+    '';
+  in
+    buildEnv {
+      name = "59dc10b5a6f2a592af36375c68fda41246794b86-env";
+      paths = [
+        (runCommand "59dc10b5a6f2a592af36375c68fda41246794b86-env" { } ''
+          mkdir -p $out/etc/profile.d
+          cp ${myLibraries} $out/etc/profile.d/59dc10b5a6f2a592af36375c68fda41246794b86-env.sh
+        '')
+        jdk21 maven
+      ];
+    }