I am deploying symmetricds on google container engine, so i have build symmetricds war file and create docker tomcat image like below :-

FROM tomcat
ENV JAVA_OPTS="-Dcom.sun.management.jmxremote.port=1109 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false"
ENV CATALINA_OPTS="-Dcom.sun.management.jmxremote.port=1109 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false"

ADD ./symmetric-ds.war /usr/local/tomcat/webapps/
ADD ./mysql-connector-java-5.1.30.jar /usr/local/tomcat/lib/
COPY ./context.xml /usr/local/tomcat/conf/context.xml
COPY ./server.xml /usr/local/tomcat/conf/server.xml
COPY ./tomcat-users.xml /usr/local/tomcat/conf/tomcat-users.xml

RUN sh -c 'touch /usr/local/tomcat/webapps/symmetric-ds.war'
VOLUME /usr/local/tomcat/webapps/
EXPOSE 8080 1109

and after that i have push it to repository and i am using kubernetes to deploy it. my kubernetes yml file is below :-

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: symserver
spec:
  replicas: 1
  template:
    metadata:
      labels:
        app: symserver
    spec:
      containers:
      - name: symserver
        image: symserver:v1
        ports:
        - containerPort: 8080
        - containerPort: 1109
---
apiVersion: v1
kind: Service
metadata:
  name: symserver
spec:
  selector:
    app: symserver
  type: LoadBalancer
  ports:
  - port: 8080
  - port: 1109

I have two problems for which i am looking for solution :-

1. As docker images are read only whatever properties i have defined in symmetricds.properties (which will be part of war file and war file be inside tomcat and i named tomcat image as symserver for docker ) file are fixed and read only. like

   sync.url=http://$(hostName):8080/symmtric-ds/sync/$(engineName)

when i deploy it to google cloud i get different ip for pods and service external link. so how to solve this problem ? as i have to set this ip in symmetricds.properties file so my other store node can connect to it. and when i restart the server then it 'symmetricds' will again pickup new ip or same ip again from file.

2. How to use JMX in case of docker and kubernetes, i have added JMX option in build file but somehow i am not able to connect it using jconsole. I have exposed port 1109 to local machine using port forward command.