WebSphere from the ground up - part two

A week or so ago I posted on how to do an 'assume nothing' installation of WebSphere in order to run the OSGi Alpha Feature pack. Today the Open Beta of the OSGi Feature Pack was released and the requirements and installation process differ slightly from those required by the Alpha.

The basic steps are pretty much the same, differences are shown in this color:

1. Install the free-for-developers WebSphere Application Server Version 7
2. Install the 7.0.0.7 Fix pack and an update to the Java SDK for WAS
   
3. Install the Open Beta OSGi Feature pack using the IBM Installation Manager.

Following the instructions for the Alpha works up to half way through step 2. But here, as well as downloading the 7.0.0.7 Fix pack you will need to download an SDK update from here. The file will be called something like 7.0.0-WS-WASSDK-LinuxX32-FP0000007.pak. Put this file in the same directory as you put the 7.0.0.7 Fix pack, then run the UpdateInstaller as directed in the previous post to install both fixes.

To install the Open Beta you will need to start with this link . Scroll down till you find these two links:


The first link (Web install...) is the one you want. You will download a preconfigured version on the installation manager which already has links to the repositories containing the Beta download.

Click on the Web install link and follow through the next screens till you find an option to download the IBM installation manager. It is about 86MB and will be called something like iim.linux.x86_20100128.zip. Download it and unzip it in a temporary directory, then run the install script in that directory.

The installation manager will start up and ask if you want to install Version 1.3.4 of the installation manager. Continue with the installation of V1.3.4 through to the end when you will be asked if you want to restart, accept this option. When the installation manager restarts you will be prompted for an ID and password, these will be the same ones as you would have used to download WAS in the first place.

The next two steps are to 'Import' your existing WAS installation into the installation manager. After that you will be able 'Install' the Beta code from a remote repository which has already been configured in the Installation Manager.

At the end if the Beta installation the profile management tool will be launched, you will need to augment your profile with the OSGi feature pack. Again, the screens are easy to follow.

This is a fairly high level view of the instructions, there are excellent and very detailed steps available from here in the getting started guide.

WebSphere Application Server - from the bottom up.

Recently I installed the IBM WebSphere Application Server from scratch so that I could look at the OSGi support for enterprise applications available in WebSphere. Google was not my friend in this instance - I couldn't find a quick summary of the instructions for installing the WebSphere Application Server anywhere. It is actually all quite easy, not to mention free. In this post I'll provide a brief overview of the steps and links to download sites. If you want more detail, look here for information on every supported operating system. I used an unsupported operating system (Ubuntu**) and for the purposes of experimenting with the OSGi support this works just fine. Although I use Linux commands throughout this, the same thing will work on Windows with the appropriate modifications to paths and exchanging .bat for .sh files.

There are three steps:

1. Install the WebSphere Application Server Version 7
2. Install the version 7.0.0.7 Fix Pack
   
3. Install the Alpha OSGi Feature Pack
   

1. Install the WebSphere Application Server Version 7

This is free for development use and all you have to give IBM is your name and an email address, which they will not use unless you check the boxes saying that you want to be contacted. You will also have to read and accept some license terms. The link you need is here, there are Windows and Linux downloads, no Mac version (sorry). You will need version 7, and the download is 800 MB so you need to allow plenty of time and make sure you have enough disk space.

Installing is straightforward. Extract the file you downloaded (it will be called something like was.cd.7000.wasdev.nocharge.linux.ia32.tar.gz). In the top level directory you will find a 'launchpad' file. Launch the installer like this:

sudo ./launchpad.sh

The screens are fairly self explanatory, just make a note of where you install the AppServer (default on my system is /opt/IBM/WebSphere/AppServer) and, if all you want is an experimental installation, I suggest not configuring security. I'll refer to the place that you installed the AppServer as WAS_HOME for the rest of this post.

Skip the final screen asking if you want to launch the AppServer, it's better to get used to the command line. Change directory to WAS_HOME/bin, then run

sudo ./startServer server1

this will start up the server. To shut it down again,

sudo ./stopServer.sh server1

2. Installing the 7.0.0.7 Fix Pack.

This is a two step process. You will need to download both the fix pack and an installer. The steps are detailed here. If this is a new installation all you need are steps 5 and 6.

The installer that you download will be called something like 7.0.0.7-WS-UPDI-LinuxIA32.tar.gz and the fix pack will be 7.0.0-WS-WAS-LinuxX32-FP0000007.pak. Extract the installer somewhere temporary, then

cd UpdateInstaller
sudo ./install

The screens which follow will take you through installing the installer and then onto installing the fix pack. The screens are easy to follow - you will just need to point the installer to the location of the fix pack at some point.

After installing, try stopping and starting WebSphere again to make sure everything has gone according to plan.

3. Installing the Alpha OSGi feature pack

You will need to download the feature pack from this site. Select the 'Download' tab then scroll down till you find 'Download OSGi Applications Alpha'. You will have to register and accept another license, then you should find a screen that allows you to download 'OSGi-Applications-Open-Alpha-20100111.zip'. Copy the .zip file into the WAS_HOME directory and then extract it. To complete the installation you will need to run:

cd WAS_HOME/feature_packs/aries/bin/
sudo ./complete_installation.sh
sudo ./augmentProfile.sh AppSrv01

This assumes that 'AppSrv01' is the name of the profile you want to use; if this is stand alone test installation using AppSrv01 will be fine.

Finally - restart the AppServer, and point your web browser at http://localhost:9060/ibm/console, which will give you the WebSphere admin console, like this:



If you didn't set up security you will just be able to click the 'Login' button, if you did you will have to enter an ID and password.

You should now be in a position to experiment with the OSGi Alpha as described here

Finally...

This is all quite easy to work through but there are some additional things that it's helpful to know:

You will find the log files here:

WAS_HOME/profiles/AppSrv01/logs/server1

the one you are most likely to want if things don't go according to plan is SystemOut.log.

OSGi bundles are cached here:

WAS_HOME/profiles/AppSrv01/config/bundlecache

It can be useful to look and see what is in there.

The OSGi samples (and their source code) can all be found here:

WAS_HOME/feature_packs/aries/

** If you do use Ubuntu to run WebSphere you will need to make sure that /bin/sh is linked to /bin/bash, not /bin/dash.