SWEBP-001: CI/CD Implementation

.github/workflows/build_test.yaml

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+name: CI/CD Pull Request
+
+on:
+    pull_request:
+        branches:
+            - main
+
+jobs:
+    build_test_app:
+        runs-on: ubuntu-latest
+
+        steps:
+            - name: Checkout Code
+              uses: actions/checkout@v6
+
+            - uses: actions/setup-java@v5
+              with:
+                distribution: 'temurin'
+                java-version: 21
+                cache: maven
+
+            - name: Build project
+              run: |
+                ./mvnw clean package -DskipTests
+              working-directory: itj-shopping-cart
+
+            - name: Run tests
+              run: |
+                ./mvnw test
+              working-directory: itj-shopping-cart
+
+    deploy_java_app:
+        runs-on: ubuntu-latest
+        needs: build_test_app
+
+        steps: 
+            - name: Checkout Code
+              uses: actions/checkout@v6
+
+            - name: Install Heroku CLI
+              run: curl https://cli-assets.heroku.com/install.sh | sh
+              shell: bash
+
+            - uses: akhileshns/heroku-deploy@v3.14.15
+              with:
+                heroku_api_key: ${{ secrets.HEROKU_API_KEY_SWEBP }}
+                heroku_app_name: "itj-shopping-cart"
+                heroku_email: ${{ vars.HEROKU_USERNAME_SWEBP }}
+                appdir: "itj-shopping-cart"
+                usedocker: true

.gitignore

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+HELP.md
+target/
+.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/

itj-shopping-cart/.mvn/wrapper/maven-wrapper.properties

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+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+wrapperVersion=3.3.2
+distributionType=only-script
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.11/apache-maven-3.9.11-bin.zip

itj-shopping-cart/Dockerfile

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+# Build Stage
+FROM maven:3.9-eclipse-temurin-21 AS build
+WORKDIR /app
+COPY pom.xml .
+COPY src ./src
+RUN mvn clean package -DskipTests
+
+# Run Stage
+FROM eclipse-temurin:21-jre-alpine
+WORKDIR /app
+COPY --from=build /app/target/*.jar app.jar
+EXPOSE 8080
+ENTRYPOINT ["java", "-jar", "app.jar"]

itj-shopping-cart/HELP.md

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+# Read Me First
+The following was discovered as part of building this project:
+
+* The original package name 'com.example.itj-shopping-cart' is invalid and this project uses 'com.example.itj_shopping_cart' instead.
+
+# Getting Started
+
+### Reference Documentation
+For further reference, please consider the following sections:
+
+* [Official Apache Maven documentation](https://maven.apache.org/guides/index.html)
+* [Spring Boot Maven Plugin Reference Guide](https://docs.spring.io/spring-boot/3.5.5/maven-plugin)
+* [Create an OCI image](https://docs.spring.io/spring-boot/3.5.5/maven-plugin/build-image.html)
+
+### Maven Parent overrides
+
+Due to Maven's design, elements are inherited from the parent POM to the project POM.
+While most of the inheritance is fine, it also inherits unwanted elements like `<license>` and `<developers>` from the parent.
+To prevent this, the project POM contains empty overrides for these elements.
+If you manually switch to a different parent and actually want the inheritance, you need to remove those overrides.
+