add env docker file to root

Dockerfile

@@ -0,0 +1,37 @@
+# ---- Base image (default fallback) ----
+ARG BASE_IMAGE
+FROM ${BASE_IMAGE:-openjdk:21-jdk-slim}
+
+# ---- Runtime arguments ----
+ARG SERVER_PORT
+ARG JAR_FILENAME
+ARG JAR_FILE_PATH
+ARG CP_BACKEND_URL
+ARG CJSCPPUID
+
+ENV JAR_FILENAME=${JAR_FILENAME:-app.jar}
+ENV JAR_FILE_PATH=${JAR_FILE_PATH:-build/libs}
+ENV JAR_FULL_PATH=$JAR_FILE_PATH/$JAR_FILENAME
+
+ENV CP_BACKEND_URL=$CP_BACKEND_URL
+ENV CJSCPPUID=$CJSCPPUID
+
+# ---- Set runtime ENV for Spring Boot to bind port
+ENV SERVER_PORT=${SERVER_PORT:-4550}
+
+# ---- Dependencies ----
+RUN apt-get update \
+    && apt-get install -y curl \
+    && rm -rf /var/lib/apt/lists/*
+
+# ---- Application files ----
+COPY $JAR_FULL_PATH /opt/app/app.jar
+COPY lib/applicationinsights.json /opt/app/
+
+# ---- Permissions ----
+RUN chmod 755 /opt/app/app.jar
+
+# ---- Runtime ----
+EXPOSE 4550
+
+CMD ["java", "-jar", "/opt/app/app.jar"]

docker-compose.yml

@@ -0,0 +1,36 @@
+services:
+  db:
+    image: postgres:16-alpine
+    container_name: cdks_CP_CDK_DB_it
+    environment:
+      POSTGRES_DB: appdb
+      POSTGRES_USER: app
+      POSTGRES_PASSWORD: app
+    ports:
+      - "55432:5432"
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U app -d appdb"]
+      interval: 5s
+      timeout: 3s
+      retries: 30
+
+  app:
+    container_name: cdks_app_it
+    build:
+      context: ..                # project root (so Docker has access to source)
+      dockerfile: docker/Dockerfile
+    ports:
+      - "8082:8082"
+    environment:
+      CP_CDK_DATASOURCE_URL: jdbc:postgresql://db:5432/appdb
+      CP_CDK_DATASOURCE_USERNAME: app
+      CP_CDK_DATASOURCE_PASSWORD: app
+      SERVER_PORT: 8082
+    depends_on:
+      db:
+        condition: service_healthy
+    healthcheck:
+      test: ["CMD-SHELL", "curl -f http://localhost:8082/actuator/health || exit 1"]
+      interval: 10s
+      timeout: 3s
+      retries: 12