This repo demonstrates openshift v3 s2i scripts usage

1. Install s2i command line tool
2. Create builder image
3. Create application image using Builder image

To Install s2i command line tool https://github.com/debianmaster/Notes/wiki/Source-2-Image---(s2i)--on-openshift

s2i --help

In order to use openshift s2i image create directory .s2i and files under .s2i as follows

mkdir .s2i
touch .s2i/assemble.sh
touch .s2i/run.sh
touch .s2i/usage.sh

assemble.sh

This file is used dynamically adding artifacts into base image and creating a app image as a result.

cp -Rf /tmp/src/. $CATALINA_HOME/webapps
echo "WAR's copied"

run.sh

This file is used for mentioning startup script.

${CATALINA_HOME}/bin/catalina.sh run

Create builder image

tomcat8-jdk8 is my future builder image name

docker build -t tomcat8-jdk8 .

Test builder image by deploying war (Optional)

on base image tomcat8-jdk8 deploy the war (contents) that is present in test/test-app and make a app image called (tomcat8-jdk8-app)

s2i build test/test-app tomcat8-jdk8 tomcat8-jdk8-app

Test the app image

docker run -d  -p 8080:8080  tomcat8-jdk8-app 

Using the template provided in this repo.

oc import-image --from=openshift/base-centos7 openshift/base-centos7 -n openshift --confirm
oc new-build --strategy=docker --name=tomcat8-jdk8 https://github.com/debianmaster/openshift-s2i-example.git -n openshift
oc create -f tomcat8-jdk8-war.template

Goto ui -> Add to project and look for tomcat8-jdk8-war template. In the step above we are creating a base image with tomcat and java and storing it on openshift namespace

You can skip the part below unless you want to know how i have create the tomcat8-jdk8-war.template file in this repo

Creating template on Openshift (Optional)

i have arrived at the template tomcat8-jdk8-war.template in this repo by creating following objects indivudually and then creating a template out of it. (with few modifications)

Create Image stream & export templates

oc new-app tomcat8-jdk8~https://github.com/debianmaster/sample-binaries.git --name='tomcat8-jdk8-war'
oc export is,bc,dc,svc --as-template=tomcat8-jdk8  > template

Modify the template above and rename it as tomcat8-jdk8-war.template