Add initial database migration script to create tables and seed data.

Add Dockerfile and docker-compose.yml for containerizing the Spring Boot application with PostgreSQL

src/Docker/docker-compose.yml

@@ -0,0 +1,42 @@
+services:
+  app:
+    image: 'jambotron'
+    container_name: 'jambotron-container'
+    build:
+      context: ../../
+      dockerfile: ./src/Docker/Dockerfile
+    ports:
+      - "8080:8080"
+    depends_on:
+      - postgres_jambotron
+    environment:
+      SPRING_DATASOURCE_URL: jdbc:postgresql://postgres_jambotron:5432/jambotronDB
+      SPRING_DATASOURCE_USERNAME: admin
+      SPRING_DATASOURCE_PASSWORD: postgrespw
+      SPRING_FLYWAY_LOCATIONS: classpath:db.migration
+      FLYWAY_USER: admin
+      FLYWAY_PASSWORD: postgrespw
+      FLYWAY_SCHEMAS: jambotronDB
+      FLYWAY_URL: jdbc:postgresql://postgres_jambotron:5432/jambotronDB
+
+#      SPRING_DATASOURCE_PASSWORD: /run/secrets/db_password
+#    secrets:
+#      - db_password
+
+
+  postgres_jambotron:
+    image: 'postgres:13-alpine'
+    container_name: 'jambotron-postgres-container'
+    ports:
+      - "5432:5432"
+    environment:
+      POSTGRES_USER: admin
+      POSTGRES_PASSWORD: postgrespw
+#      POSTGRES_PASSWORD: /run/secrets/db_password
+      POSTGRES_DB: jambotronDB
+#    secrets:
+#      - db_password
+#
+#secrets:
+#  db_password:
+#    file: db_password.txt