dash-2019-docker-compose.yml

version: "3.3"

services:

  database:
    image: <dtr hostname>/java/database
    # set default mysql root password, change as needed
    environment:
      MYSQL_ROOT_PASSWORD: mysql_password
    # Expose port 3306 to host. 
    ports:
      - "3306:3306" 
    networks:
      - back-tier
      - datadog-agent

  webserver:
    image: <dtr hostname>/admin/java_web
    ports:
      - "8080:8080" 
    networks:
      - front-tier
      - back-tier
      - datadog-agent

networks:
  back-tier:
    external: true
  front-tier:
    external: true
  datadog-agent:
    external: true

secrets:
  mysql_password:
    external: true

dash-2019-java-web-v1.Dockerfile

#
# Build the app using maven in a container
#
FROM maven:3.5.2-jdk-8-alpine AS devenv
WORKDIR /usr/src/java-app 
COPY app/pom.xml .
RUN mvn -B -f pom.xml -s /usr/share/maven/ref/settings-docker.xml dependency:resolve
COPY ./app .
RUN mvn -B -s /usr/share/maven/ref/settings-docker.xml package -DskipTests

#
# deploy application to tomcat
#

FROM tomcat:7-jre8
LABEL maintainer="Sophia Parafina <sophia.parafina@docker.com>"

# tomcat-users.xml sets up user accounts for the Tomcat manager GUI
ADD tomcat/tomcat-users.xml $CATALINA_HOME/conf/

# ADD tomcat/catalina.sh $CATALINA_HOME/bin/
ADD tomcat/run.sh $CATALINA_HOME/bin/run.sh
RUN chmod +x $CATALINA_HOME/bin/run.sh

# add MySQL JDBC driver jar
ADD tomcat/mysql-connector-java-5.1.36-bin.jar $CATALINA_HOME/lib/

# create mount point for volume with application
WORKDIR $CATALINA_HOME/webapps/
COPY --from=devenv /usr/src/java-app/target/java-web.war .

# enable data dog
ADD apm/dd-java-agent.jar $CATALINA_HOME/lib/
ENV DD_AGENT_HOST=datadog-agent \ 
    DD_TRACE_AGENT_PORT=8126 \
    JAVA_OPTS="$JAVA_OPTS -javaagent:$CATALINA_HOME/lib/dd-java-agent.jar"

# start tomcat7 with remote debugging
EXPOSE 8080
CMD ["run.sh"]

dash-2019-pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.docker</groupId>
  <artifactId>javaweb</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>java-web</name>
  <url>http://maven.apache.org</url>
  <dependencies>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>3.2.4.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>servlet-api</artifactId>
      <version>2.5</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.21</version>
    </dependency>
    <dependency>
      <groupId>org.hibernate</groupId>
      <artifactId>hibernate-validator</artifactId>
      <version>4.2.0.Final</version>
    </dependency>
    <dependency>
      <groupId>org.hibernate</groupId>
      <artifactId>hibernate-entitymanager</artifactId>
      <version>4.1.9.Final</version>
    </dependency>
    <dependency>
      <groupId>javax.transaction</groupId>
      <artifactId>jta</artifactId>
      <version>1.1</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>3.2.0.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-orm</artifactId>
      <version>3.2.0.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.codehaus.jackson</groupId>
      <artifactId>jackson-mapper-asl</artifactId>
      <version>1.9.12</version>
    </dependency>
    <dependency>
      <groupId>org.springframework.data</groupId>
      <artifactId>spring-data-jpa</artifactId>
      <version>1.3.0.RELEASE</version>
      <exclusions>
          <exclusion>
              <groupId>org.springframework</groupId>
              <artifactId>spring-aop</artifactId>
          </exclusion>
      </exclusions>
    </dependency>
    <dependency>
        <groupId>com.datadoghq</groupId>
        <artifactId>dd-trace-api</artifactId>
        <version>0.30.0</version>
    </dependency>
  </dependencies>
  <build>
    <finalName>java-web</finalName>
  </build>
</project>

kube-deploy.yml

apiVersion: v1
data:
  mysql_password: RG9ja2VyY29uISEh
kind: Secret
metadata:
  labels:
    com.docker.stack.namespace: signup
  name: mysql-password
  namespace: default
type: Opaque
---
apiVersion: v1
kind: Service
metadata:
  labels:
    com.docker.service.id: signup-database
    com.docker.service.name: database
    com.docker.stack.namespace: signup
  name: database
  namespace: default
spec:
  ports:
  - name: database
    port: 3306
    protocol: TCP
    targetPort: 3306
    nodePort: 32768
  selector:
    com.docker.service.id: signup-database
    com.docker.service.name: database
    com.docker.stack.namespace: signup
  sessionAffinity: None
  type: NodePort
---
apiVersion: v1
kind: Service
metadata:
  labels:
    com.docker.service.id: signup-dotnet-api
    com.docker.service.name: dotnet-api
    com.docker.stack.namespace: signup
  name: dotnet-api
  namespace: default
spec:
  ports:
  - name: dotnet-api
    port: 80
    protocol: TCP
    targetPort: 80
    nodePort: 32769
  selector:
    com.docker.service.id: signup-dotnet-api
    com.docker.service.name: dotnet-api
    com.docker.stack.namespace: signup
  type: NodePort
---
apiVersion: v1
kind: Service
metadata:
  labels:
    com.docker.service.id: signup-java-web
    com.docker.service.name: java-web
    com.docker.stack.namespace: signup
  name: java-web
  namespace: default
spec:
  ports:
  - name: java-web
    port: 8080
    protocol: TCP
    targetPort: 8080
    nodePort: 32770
  selector:
    com.docker.service.id: signup-java-web
    com.docker.service.name: java-web
    com.docker.stack.namespace: signup
  type: NodePort
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  labels:
    com.docker.service.id: signup-database
    com.docker.service.name: database
    com.docker.stack.namespace: signup
  name: database
  namespace: default
spec:
  replicas: 1
  selector:
    matchLabels:
      com.docker.service.id: signup-database
      com.docker.service.name: database
      com.docker.stack.namespace: signup
  template:
    metadata:
      labels:
        com.docker.service.id: signup-database
        com.docker.service.name: database
        com.docker.stack.namespace: signup
    spec:
      containers:
      - env:
        - name: MYSQL_ROOT_PASSWORD
          valueFrom:
            secretKeyRef:
              name: mysql-password
              key: mysql_password
        image: ip172-18-0-7-bkmlskp6u0dg00c6r98g.direct.beta-hybrid.play-with-docker.com/java/database:latest
        imagePullPolicy: IfNotPresent
        name: database
        ports:
        - containerPort: 3306
          protocol: TCP
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  labels:
    com.docker.service.id: signup-dotnet-api
    com.docker.service.name: dotnet-api
    com.docker.stack.namespace: signup
  name: dotnet-api
  namespace: default
spec:
  replicas: 1
  selector:
    matchLabels:
      com.docker.service.id: signup-dotnet-api
      com.docker.service.name: dotnet-api
      com.docker.stack.namespace: signup
  template:
    metadata:
      labels:
        com.docker.service.id: signup-dotnet-api
        com.docker.service.name: dotnet-api
        com.docker.stack.namespace: signup
    spec:
      containers:
      - image: ip172-18-0-7-bkmlskp6u0dg00c6r98g.direct.beta-hybrid.play-with-docker.com/dotnet/dotnet_api:core
        imagePullPolicy: IfNotPresent
        name: dotnet-api
        ports:
        - containerPort: 80
          protocol: TCP
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  labels:
    com.docker.service.id: signup-java-web
    com.docker.service.name: java-web
    com.docker.stack.namespace: signup
  name: java-web
  namespace: default
spec:
  replicas: 1
  selector:
    matchLabels:
      com.docker.service.id: signup-java-web
      com.docker.service.name: java-web
      com.docker.stack.namespace: signup
  template:
    metadata:
      labels:
        com.docker.service.id: signup-java-web
        com.docker.service.name: java-web
        com.docker.stack.namespace: signup
    spec:
      containers:
      - env:
        - name: BASEURI
          value: http://dotnet-api/api/users
        - name: DD_AGENT_HOST
          valueFrom:
            fieldRef:
              fieldPath: status.hostIP
        - name: DD_TRACE_AGENT_PORT
          value: 8126
        image: ip172-18-0-7-bkmlskp6u0dg00c6r98g.direct.beta-hybrid.play-with-docker.com/java/java_web:2
        imagePullPolicy: IfNotPresent
        name: java-web
        ports:
        - containerPort: 8080
          protocol: TCP