docker-compose

cqrs-sink/Dockerfile

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+# Start with a base image containing Java runtime
+FROM openjdk:8-jdk-alpine
+
+# Add a volume pointing to /tmp
+VOLUME /tmp
+
+# Make port 8081 available to the world outside this container
+EXPOSE 8081
+
+# The application's jar file
+ARG JAR_FILE=target/cqrs-sink-1.0.0-SNAPSHOT.jar
+
+# Add the application's jar to the container
+ADD ${JAR_FILE} cqrs-sink.jar
+
+# Run the jar file 
+ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/cqrs-sink.jar"]

cqrs-source/Dockerfile

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+# Start with a base image containing Java runtime
+FROM openjdk:8-jdk-alpine
+
+# Add a volume pointing to /tmp
+VOLUME /tmp
+
+# Make port 8080 available to the world outside this container
+EXPOSE 8080
+
+# The application's jar file
+ARG JAR_FILE=target/cqrs-source-1.0.0-SNAPSHOT.jar
+
+# Add the application's jar to the container
+ADD ${JAR_FILE} cqrs-source.jar
+
+# Run the jar file 
+ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/cqrs-source.jar"]

docker-compose.yaml

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+version: "2"
+
+services:
+  sink:
+    build: ./cqrs-sink
+    ports:
+      - 8081:8081
+    links:
+      - mysql
+      - kafka
+
+  source:
+    build: ./cqrs-source
+    ports:
+      - 8080:8080
+    links:
+      - mysql
+      - kafka
+
+  mysql:
+      image: mysql
+      ports:
+       - 3306:3306
+      environment:
+       - MYSQL_ROOT_PASSWORD=root
+       - MYSQL_USER=myuser
+       - MYSQL_PASSWORD=mypwd
+
+  zookeeper:
+    image: confluent/zookeeper
+    ports:
+     - 2181:2181
+     - 2888:2888
+     - 3888:3888
+  kafka:
+    image: confluent/kafka
+    ports:
+     - 9092:9092
+    links:
+     - zookeeper
+    environment:
+     - ZOOKEEPER_CONNECT=zookeeper:2181
+     - ADVERTISED_LISTENERS=PLAINTEXT://kafka:9092