feat: Add GitHub Actions workflows for building, packaging, and deploying the Admin Service to Kubernetes

.github/workflows/build.yaml

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+# .github/workflows/build.yml
+name: Build and Package Service
+on:
+  push:
+    branches:
+      - 'main'
+      - 'devOps'
+      - 'dev'
+  pull_request:
+    branches:
+      - 'main'
+      - 'devOps'
+      - 'dev'
+
+permissions:
+  contents: read
+  packages: write 
+
+jobs:
+  build-test:
+    name: Install and Build (Tests Skipped)
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 17
+        uses: actions/setup-java@v4
+        with:
+          java-version: '17'
+          distribution: 'temurin'
+          cache: maven
+
+      - name: Cache Maven packages
+        uses: actions/cache@v4
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+          restore-keys: |
+            ${{ runner.os }}-maven-
+
+      - name: Build with Maven (Skip Tests)
+        run: mvn -B clean package -DskipTests --file admin-service/pom.xml
+
+      - name: Upload Build Artifact (JAR)
+        uses: actions/upload-artifact@v4
+        with:
+          name: admin-service-jar
+          path: admin-service/target/*.jar
+
+  build-and-push-docker:
+    name: Build & Push Docker Image
+    if: github.ref == 'refs/heads/main' || github.ref == 'refs/heads/devOps' || github.ref == 'refs/heads/dev'
+    runs-on: ubuntu-latest
+    needs: build-test 
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Download JAR Artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: admin-service-jar
+          path: admin-service/target/
+
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ghcr.io/techtorque-2025/admin_service
+          tags: |
+            type=sha,prefix=
+            type=raw,value=latest,enable={{is_default_branch}}
+
+      - name: Log in to GHCR
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

.github/workflows/deploy.yaml

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+# Admin_Service/.github/workflows/deploy.yml
+
+name: Deploy Admin Service to Kubernetes
+
+on:
+  workflow_run:
+    workflows: ["Build and Package Service"]
+    types:
+      - completed
+    branches:
+      - 'main'
+      - 'devOps'
+
+jobs:
+  deploy:
+    name: Deploy Admin Service to Kubernetes
+    if: ${{ github.event.workflow_run.conclusion == 'success' }}
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Get Commit SHA
+        id: get_sha
+        run: |
+          echo "sha=$(echo ${{ github.event.workflow_run.head_sha }} | cut -c1-7)" >> $GITHUB_OUTPUT
+
+      - name: Checkout K8s Config Repo
+        uses: actions/checkout@v4
+        with:
+          repository: 'TechTorque-2025/k8s-config' 
+          token: ${{ secrets.REPO_ACCESS_TOKEN }} 
+          path: 'config-repo'
+          ref: 'main' 
+
+      - name: Install kubectl
+        uses: azure/setup-kubectl@v3
+
+      - name: Install yq
+        run: |
+          sudo wget https://github.com/mikefarah/yq/releases/latest/download/yq_linux_amd64 -O /usr/bin/yq
+          sudo chmod +x /usr/bin/yq
+
+      - name: Set Kubernetes context
+        uses: azure/k8s-set-context@v4
+        with:
+          kubeconfig: ${{ secrets.KUBE_CONFIG_DATA }}
+
+      - name: Update image tag in YAML
+        run: |
+          yq -i '(select(.kind == "Deployment") | .spec.template.spec.containers[0].image) = "ghcr.io/techtorque-2025/admin_service:${{ steps.get_sha.outputs.sha }}"' config-repo/k8s/services/admin-deployment.yaml
+
+      - name: Display file contents before apply
+        run: |
+          echo "--- Displaying k8s/services/admin-deployment.yaml ---"
+          cat config-repo/k8s/services/admin-deployment.yaml
+          echo "------------------------------------------------------"
+
+      - name: Deploy to Kubernetes
+        run: |
+          kubectl apply -f config-repo/k8s/services/admin-deployment.yaml
+          kubectl rollout status deployment/admin-deployment

Dockerfile

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+# Dockerfile for admin-service
+
+# --- Build Stage ---
+# Use the official Maven image which contains the Java JDK
+FROM maven:3.8-eclipse-temurin-17 AS build
+
+# Set the working directory
+WORKDIR /app
+
+# Copy the pom.xml and download dependencies
+COPY admin-service/pom.xml .
+RUN mvn -B dependency:go-offline
+
+# Copy the rest of the source code and build the application
+# Note: We copy the pom.xml *first* to leverage Docker layer caching.
+COPY admin-service/src ./src
+RUN mvn -B clean package -DskipTests
+
+# --- Run Stage ---
+# Use a minimal JRE image for the final container
+FROM eclipse-temurin:17-jre-jammy
+
+# Set a working directory
+WORKDIR /app
+
+# Copy the built JAR from the 'build' stage
+# The wildcard is used in case the version number is in the JAR name
+COPY --from=build /app/target/*.jar app.jar
+
+# Expose the port your application runs on
+EXPOSE 8087
+
+# The command to run your application
+ENTRYPOINT ["java", "-jar", "app.jar"]