???I am getting ready for the fall     semester. My software engineering students will be using GlassFish for their projects. In     order to avoid the "but it worked on my computer" syndrome, I make them     deploy their apps on a server in my office. I just installed Ubuntu Server Edition. These     instructions got me started with the Linux basics. This blog has the     (not so) gory details for installing Java, GlassFish, and PostgreSQL. At     the end are the obligatory reflective comments.

   

I ran all these steps as super-user. Note that Ubuntu Server has no GUI     interface by default. I simply put the in a corner, connected with ssh,     and ran the commands in a terminal. Required skills: bash shell basics and     a stone-age text editor such as vi.

   

Java

   
         
  1. Edit /etc/apt/sources.list, uncomment the lines for adding       universe, and manually add multiverse at the end:
    deb http://us.archive.ubuntu.com/ubuntu/ dapper universe multiverse
    deb-src http://us.archive.ubuntu.com/ubuntu/ dapper universe multiverse
  2.      
  3. Run
    apt-get install sun-java5-jdk
  4.      
  5. Run
    java -version
    You should get something like
    java version "1.5.0_06"
    Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_06-b05)
    Java HotSpot(TM) Client VM (build 1.5.0_06-b05, mixed mode, sharing)
    
  6.    
   

Wow. That was phenomenally easy.

   

???GlassFish

   
         
  1. Go to and look for the version that you want to download.
  2.      
  3. Download it with
    wget http://java.net/download/javaee5/promoted/Linux/glassfish-installer-v2-b09.jar
    but       substitute the correct version number.
  4.      
  5. Run
    java -jar -mx256M glassfish-installer-v2-b09.jar
    (Again,       substitute the correct version number.) The installer automatically runs       in headless mode, without a GUI.
  6.      
  7. Move the installation somewhere permanent. I want to be able to get       new versions as they become available without having to change many       configuration files. I'll put this version into       /opt/glassfish-v2-b09 and make a symlink       /opt/glassfish.
    mv glassfish /opt/glassfish-v2-b09
    ln -s /opt/glassfish-v2-b09 /opt/glassfish
  8.      
  9. Run setup.xml in the usual way:
    cd /opt/glassfish
    /opt/glassfish/lib/ant/bin/ant -f setup.xml
  10.      
  11. I wanted the default domain to be in a separate directory so that I       could install new versions. There must be a better way of controlling       the domain directory, but for now I used a brute-force approach, again       with symlinks.
    mv /opt/glassfish/domains/domain1 /opt
    ln -s /opt/domain1 /opt/glassfish/domains/domain1
  12.      
  13. It seems prudent to change the admin password on a public       server:
    /opt/glassfish/bin/asadmin change-admin-password --user admin
    Please enter the old admin password>adminadmin
    Please enter the new admin password>(password is echoed)
    Please enter the new admin password again>(password is echoed)
    The       password needs to be at least 8 characters long.
    I then had to       remove ~/.adminpass and run /opt/glassfish/bin/asadmin       login to regenerate it, but that may have been a fluke.
  14.      
  15. I want GlassFish to be a service that starts up automatically. There       are probably better ways to do this, but here is my pedestrian approach.       I produced a file /etc/init.d/glassfish with this content:
    #! /bin/sh
    ### BEGIN INIT INFO
    # Provides:          glassfish
    # Required-Start:    $local_fs $remote_fs
    # Required-Stop:     $local_fs $remote_fs
    # Default-Start:     2 3 4 5
    # Default-Stop:      S 0 1 6
    # Short-Description: glassfish initscript
    # Description:       A simple initscript for the glassfish app server
    ### END INIT INFO
    #
    # Author:            Cay S. Horstmann (http://horstmann.com)
    #
    
    set -e
    
    PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/opt/glassfish/bin
    DESC="Java EE5 App Server"
    NAME=glassfish
    ASADMIN=asadmin
    PIDFILE=/var/run/$NAME.pid
    SCRIPTNAME=/etc/init.d/$NAME
    
    # Gracefully exit if the package has been removed.
    test -x $DAEMON || exit 0
    
    # Read config file if it is present.
    #if [ -r /etc/default/$NAME ]
    #then
    #       . /etc/default/$NAME
    #fi
    
    #
    #       Function that starts the daemon/service.
    #
    d_start() {
            $ASADMIN start-domain \
                    || echo -n " already running"
    }
    
    #
    #       Function that stops the daemon/service.
    #
    d_stop() {
            $ASADMIN stop-domain \
                    || echo -n " not running"
    }
    
    case "$1" in
      start)
            echo -n "Starting $DESC: $NAME"
            d_start
            echo "."
            ;;
      stop)
            echo -n "Stopping $DESC: $NAME"
            d_stop
            echo "."
            ;;
      reload|restart|force-reload)
            echo -n "Restarting $DESC: $NAME"
            d_stop
            sleep 10
            d_start
            echo "."
            ;;
      *)
            echo "Usage: $SCRIPTNAME {start|stop|restart|force-reload}" >&2
            exit 3
            ;;
    esac
    
    exit 0
    
    
    No, I don't know what I am doing. I just modified       /etc/init.d/skeleton. Then I ran
    update-rc.d glassfish defaults
  16.      
  17. At this point, you should be able to reboot the machine and point a       browser to http://machinename:4848. The admin interface should       come up.
    ???
  18.    
   

PostgreSQL

   
         
  1. Run
    apt-get install postgresql-8.1 postgresql-client-8.1
  2.      
  3. Change the password:
    su postgres
    psql
    ALTER USER postgres WITH PASSWORD 'secret';
    \q
    exit
  4.      
  5. Go to http://jdbc.postgresql.org/download.html       and pick the most recent driver. Download it as
    wget http://jdbc.postgresql.org/download/postgresql-8.2dev-503.jdbc3.jar
    (Change       the version number...)
  6.      
  7. Copy the driver into /opt/glassfish/domains/domain1/lib and       restart the server. Use either asadmin in the usual way or, if       you installed GlassFish as a service, simply invoke-rc.d glassfish       restart.
  8.      
  9. Set up a connection pool and a JDBC resource. You can do this       through the admin interface or directly from the command line. I did the       latter. Each of the two commands should be on a single line.
    /opt/glassfish/bin/asadmin create-jdbc-connection-pool 
       --datasourceclassname org.postgresql.ds.PGSimpleDataSource 
       --restype javax.sql.DataSource 
       --property portNumber=5432:password=secret:user=postgres:serverName=localhost:databaseName=postgres 
       PostgresPool
    /opt/glassfish/bin/asadmin create-jdbc-resource 
       --connectionpoolid PostgresPool 
       jdbc/Postgres
    
  10.      
  11. ???Try it out. Download the Elvis quiz app.
    wget http://horstmann.com/elvis/quiz.zip
    mkdir quiz
    cd quiz
    jar xvf ../quiz.zip
    
    Edit build.properties and change the password. Edit       conf/persistence.xml and specify the data source:
    <?xml version="1.0" encoding="UTF-8"?>
    <persistence xmlns="http://java.sun.com/xml/ns/persistence" version="1.0">
        <persistence-unit name="defaultPersistenceUnit">
            <jta-data-source>jdbc/Postgres</jta-data-source>
            <properties>
                <property name="toplink.logging.level" value="FINEST"/>
            </properties>
        </persistence-unit>
    </persistence>
    Now run
    /opt/glassfish/lib/ant/bin/ant run-client
    You       should get a message such as
    run-client:
         [java] elvis.entity.Quiz[id=26,title=A Java Trivia Quiz,questions={IndirectList: not instantiated}]
    
  12.    
   

The Obligatory Reflective Comments

   

???First off, apt-get is great.     This was far and away the easiest JDK installation I have ever done. I     didn't have to fuss with the PATH. I'll get alerted when new versions     appear and can update them easily. There is some behind-the-scenes work     that makes Sun's Java the preferred one (rather than GCJ).

   

I'd love to be able to run apt-get install glassfish.

   

I never installed much software on a headless server before and I was     pleasantly surprised how easy it was. But if that isn't your cup of tea,     you can use the admin web interface to do most steps.

   

The Glassfish installer needs to do something about the service script.     Maybe someone can contribute this? It is an open source project, after     all.