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This Project demonstrates how JBOSS/EAP Java App with JNDI to Oracle DB can be run on Cloud Foundry with IBM Liberty Buildpack without any code changes

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JNDI App using Oracle on Cloud Foundry

This project shows ways to run Jboss JNDI App using Oracle DB on Cloud Foundry via modified Liberty Build Pack

Pre-requisites

1. Maven

Spring Boot is compatible with Apache Maven 3.2 or above. If you don’t already have Maven installed you can follow the instructions at maven.apache.org.

On MAC, Install Homebrew if not already installed. Then install Maven

$ brew install maven

2. GIT Bash

On Windows, if you don't already have GIT Bash installed, download GIT Bash here

3. Cloud Foundry - PCF Dev or any Cloud Foundry Install

You can run PCF Dev on your local machine following instructions here: https://pivotal.io/platform/pcf-tutorials/getting-started-with-pivotal-cloud-foundry-dev/introduction

GET YOUR ENVIRONMENT READY

Login to PCF (target your CF endpoint, I'm using my PCF Dev URI):

cf login -a https://api.local.pcfdev.io

Create User Defined Service: Make sure to use PCF as your instance name as JNDI will be created using that name. You can use the Oracle URI if you don't have your own Oracle instance:

cf cups PCF -p '{"uri":"oracle://admin:management@pcfdb.cizqc6uzdesg.us-east-1.rds.amazonaws.com:1521/ORCLPCF?reconnect=true"}'

Clone code:

git clone https://github.com/mayureshkrishna/jbossjndi-oracle-liberty-pcf.git

Navigate to the cloned directory

Now you can deploy this to Cloud Foundry 2 ways

Option 1: Just "cf push" your WAR file

Package code using maven: Go to your cloned code root directory and run

mvn clean package

Push code to Cloud Foundry: Make sure you are running this from your cloned code root directory

cf push -b https://github.com/mayureshkrishna/ibm-websphere-liberty-buildpack.git -p target/HibernateJndi.war HibernateJndi

Bind Service to App: Bind the Oracle User Defined service which your created earlier to the app you just pushed.

cf bind-service HibernateJndi PCF

Make sure to restage the app so that auto configuration of JNDI picks up.

cf restage HibernateJndi

Here's the restage logs and you will notice the Autowiring:

-----> Auto-configuration is creating config for service instance 'PCF' of type 'oracle'

Restaging app **HibernateJndi** in org **pcfdev-org** / space **pcfdev-space** as **user**...

  

Staging app and tracing logs...

Creating container

Successfully created container

Downloading app package...

Downloaded app package (6.2M)

Downloading build artifacts cache...

Downloaded build artifacts cache (191.6M)

Staging...

-----> Liberty Buildpack Version: ecec66f | https://github.com/mayureshkrishna/ibm-websphere-liberty-buildpack.git#ecec66f

-----> Downloading IBM 1.8.0_sr5fp7 JRE from https://public.dhe.ibm.com/ibmdl/export/pub/systems/cloud/runtimes/java/8.0.5.7/linux/x86_64/ibm-java-jre-8.0-5.7-x86_64-archive.bin ... (0.2s)

Expanding JRE to .java ... (20.7s)

-----> Downloading from https://public.dhe.ibm.com/ibmdl/export/pub/software/websphere/wasdev/downloads/wlp/18.0.0.1/wlp-webProfile7-18.0.0.1.zip ... (0.2s)

Installing archive ... (1.0s)

-----> Downloading and installing client jar(s) from https://github.com/mayureshkrishna/ibm-websphere-liberty-buildpack/raw/master/resources/oracle/ojdbc6.jar (0.8s)

-----> Warning: Liberty feature set is not specified. Using the default feature set: ["beanValidation-1.1", "cdi-1.2", "ejbLite-3.2", "el-3.0", "jaxrs-2.0", "jdbc-4.1", "jndi-1.0", "jpa-2.1", "jsf-2.2", "jsonp-1.0", "jsp-2.3", "managedBeans-1.0", "servlet-3.1", "websocket-1.1"]. For the best results, explicitly set the features via the JBP_CONFIG_LIBERTY environment variable or deploy the application as a server directory or packaged server with a custom server.xml file.

-----> Auto-configuration is creating config for service instance 'PCF' of type 'oracle'

-----> Liberty buildpack is done creating the droplet

Exit status 0

Staging complete

Uploading droplet, build artifacts cache...

Uploading droplet...

Uploading build artifacts cache...

Uploaded build artifacts cache (194.1M)

Uploaded droplet (195.4M)

Uploading complete

Destroying container

Successfully destroyed container

Waiting for app to start...

name:  HibernateJndi

requested state: started

instances: 1/1

usage: 256M x 1 instances

routes:  hibernatejndi.local.pcfdev.io

last uploaded: Fri 20 Apr 11:42:01 EDT 2018

stack: cflinuxfs2

buildpack: https://github.com/mayureshkrishna/ibm-websphere-liberty-buildpack.git

start command: .liberty/create_vars.rb wlp/usr/servers/defaultServer/runtime-vars.xml && .liberty/calculate_memory.rb && WLP_SKIP_MAXPERMSIZE=true JAVA_HOME="$PWD/.java"

WLP_USER_DIR="$PWD/wlp/usr" exec .liberty/bin/server run defaultServer

**state** **since**  **cpu**  **memory**  **disk** **details**

#0 running 2018-04-20T15:51:03Z 0.0% 86.5M of 256M 274.8M of 512M

Now your App is up and running. You can run the app in your browser if you are using PCF Dev at: http://hibernatejndi.local.pcfdev.io/GetEmployeeById?empId=1

You can get URL info under routes by running:

cf app HibernateJndi

Showing health and status for app **HibernateJndi** in org **pcfdev-org** / space **pcfdev-space** as **user**...
name:  HibernateJndi
requested state: started
instances: 1/1
usage: 256M x 1 instances
routes:  hibernatejndi.local.pcfdev.io
last uploaded: Fri 20 Apr 11:42:01 EDT 2018
stack: cflinuxfs2

buildpack: https://github.com/mayureshkrishna/ibm-websphere-liberty-buildpack.git

**state** **since**  **cpu**  **memory** **disk** **details**

#0 running 2018-04-20T15:51:03Z 0.7% 171.9M of 256M 277.2M of 512M

Option 2: "cf push" websphere/liberty SERVER directory

Make sure you are at the cloned root directory

MK:jbossjndi-oracle-liberty-pcf mkrishna$ ls

LICENSE  README.md  WebContent  manifest.yml  pcfliberty  pom.xml  src  target

You will notice there's pcfliberty directory here, which is essentially websphere/liberty server directory. There is no use of this directory in the previous option.

We will use this pre-configured server directory which has the built "WAR" file of the app as well.

P.S.: In this option you can change the server.xml as per your need and all you have to do is copy your packaged "WAR" file to "apps" directory under the server directory.

Let's move the manifest file from pcfliberty directory to root so that we can exclude server.xml updates via auto-configuration.

mv pcfliberty/manifest.yml .

If you look at manifest.yml, it has additional exclude parameter.

MK:jbossjndi-oracle-liberty-pcf mkrishna$ cat manifest.yml
---
env:
  IBM_JVM_LICENSE: L-PMAA-A3Z8P2
  IBM_LIBERTY_LICENSE: L-CTUR-AVDTCN
  services_autoconfig_excludes: oracle=config

Now let's just "cf push" it. Make sure you are running this from your cloned code root directory

cf push -b https://github.com/mayureshkrishna/ibm-websphere-liberty-buildpack.git -p pcfliberty/ HibernateJndi

Bind Service to App: Bind the Oracle User Defined service which your created earlier to the app you just pushed.

cf bind-service HibernateJndi PCF

Make sure to restage the app so that auto configuration of JNDI picks up.

cf restage HibernateJndi

In the restage logs and you will notice the Autowiring:

-----> Auto-configuration is creating config for service instance 'PCF' of type 'oracle'

Now your App is up and running. You can run the app in your browser if you are using PCF Dev at: http://hibernatejndi.local.pcfdev.io/GetEmployeeById?empId=1

You can get URL info under routes by running:

cf app HibernateJndi

Showing health and status for app **HibernateJndi** in org **pcfdev-org** / space **pcfdev-space** as **user**...
name:  HibernateJndi
requested state: started
instances: 1/1
usage: 256M x 1 instances
routes:  hibernatejndi.local.pcfdev.io
last uploaded: Fri 20 Apr 11:42:01 EDT 2018
stack: cflinuxfs2

buildpack: https://github.com/mayureshkrishna/ibm-websphere-liberty-buildpack.git

**state** **since**  **cpu**  **memory** **disk** **details**

#0 running 2018-04-20T15:51:03Z 0.7% 171.9M of 256M 277.2M of 512M

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This Project demonstrates how JBOSS/EAP Java App with JNDI to Oracle DB can be run on Cloud Foundry with IBM Liberty Buildpack without any code changes

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