jonmosco / tomcat_sidecar_pattern Goto Github PK

##Tomcat application deployment container

###This is a POC that puts the sidecar container pattern to use

Deploys the sample.war from a container to a mounted VOLUME exposed inside the tomcat container in /usr/local/tomcat/webapps/

##Sidecar Container Pattern

https://www.usenix.org/system/files/conference/hotcloud16/hotcloud16_burns.pdf

###Vagrant environment

This image can run locally as long as the docker engine is isntalled, and comes with Vagrantfile VM on CentOS 7 with the latest Docker engine.

###Server Container

FROM tomcat:8.0-jre8

# Mount point for the sidecar container
VOLUME [ "/usr/local/tomcat/webapps" ]

###Side Container

FROM busybox:latest

ADD sample.war /usr/local/tomcat/webapps/sample.war

VOLUME [ "/usr/local/tomcat/webapps/" ]
WORKDIR /usr/local/tomcat/webapps/

Build the image: $ docker buid sidecar/

Run the container:

$ docker run -t -i --name sidecar_test sidecar_war

Keep the container running:

$ docker run -d --name sidecar_test03 sidecar_war tail -f /dev/null

Build the stack:

$ docker run --name sample_app05 --volumes-from sidecar_test -d  -p 8080:8080  tomcat_server0

###Docker Compose

This example app deployment also includes a docker-compose.yml