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== link:index.html[Index] -> link:cookbook.html[Cookbook]
Cookbook: Setting up GlassFish
------------------------------
Supporting Java with Cherokee is almost trivial using
link:https://glassfish.dev.java.net[GlassFish], an enterprise class
Java EE 5 application server.
For this recipe you will need Cherokee's
link:modules_handlers_proxy.html[HTTP reverse proxy] and a valid
GlassFish installation, which in turn requires JDK 5 or JDK 6
installed on your system. The configuration processing depends on Ant
(1.6.5).
We will be using GlassFish v2 here since GlassFish v3 is still under
development.
[[debian]]
Debian installation
~~~~~~~~~~~~~~~~~~~
If you are lucky enough to be using a Debian based Linux distribution,
simply installing the `glassfishv2` package will be enough.
----
# apt-get install glassfishv2
----
This will completely deploy the needed infrastructure and launch the
application server.
[[generic]]
Generic installation
~~~~~~~~~~~~~~~~~~~~
If you are using another OS or Linux distribution, there should be an
alternative available. You can always download it and follow the
installation instructions available at the
link:https://glassfish.dev.java.net/public/downloadsindex.html[official
site].
The installation process is also simple. For example, for Linux you
could do the following to retrieve the executable installer and run
it:
----
$ wget http://java.net/download/javaee5/v2ur2/promoted/Linux/glassfish-installer-v2ur2-b04-linux.jar
$ java -Xmx256M -jar glassfish-installer-v2ur2-b04-linux.jar
----
This will pop up a GUI, guide you through the process and unpack all
the files for GlassFish into ./glassfish
There you will find the needed GlassFish setup script. The files
setup.xml and setup-cluster.xml are both used for this. Use the one
that suits you. The Debian version supports clustering, so we will use
that to obtain a coherent output for both Debian and Generic
installations.
Ant is also provided, and should be made executable if you didn't
already have it installed.
----
$ chmod a+x glassfish/lib/ant/bin/*
----
It would be a good time to move the ./glassfish directory to the path
where you will want it in production.
Now to run the setup:
----
$ lib/ant/bin/ant -f setup-cluster.xml
----
[[glassfish]]
Launching Glassfish
~~~~~~~~~~~~~~~~~~~
To launch the service you will have to start up the GlassFish
server.
----
$ ./bin/asadmin start-domain
----
Or if it is installed system wide:
----
$ /usr/bin/asadmin start-domain
----
Don't forget to set up an automatic way of doing this at boot time.
You should obtain an output similar to this:
----
Starting Domain domain1, please wait.
Log redirected to /var/lib/glassfishv2/domains/domain1/logs/server.log.
Redirecting output to /var/lib/glassfishv2/domains/domain1/logs/server.log
Domain domain1 started.
Domain [domain1] is running [Sun Java System Application Server 9.1_01 (build local)] with its configuration and logs at: [/var/lib/glassfishv2/domains].
Admin Console is available at [http://localhost:4848].
Use the same port [4848] for "asadmin" commands.
User web applications are available at these URLs:
[http://localhost:8080 https://localhost:8181 ].
Following web-contexts are available:
[/web1 /__wstx-services ].
Standard JMX Clients (like JConsole) can connect to JMXServiceURL:
[service:jmx:rmi:///jndi/rmi://borg:8686/jmxrmi] for domain management purposes.
Domain listens on at least following ports for connections:
[8080 8181 4848 3700 3820 3920 8686 ].
Domain supports application server clusters and other standalone instances.
----
This means you have GlassFish up and running. Now you can:
* Access the web-based admin page at
link:http://localhost:4848[http://localhost:4848], with the used
`admin` and password `adminadmin` by default (which you'll be
changing right away form the "Application Server" menu). There
you'll be making whatever configuration changes you need.
* Use GlassFish as is. It works fine as a standalone server. Just
deploy an application and test it.
* Get the real thing: we've come this long for a more sophisticated set
up, not just a stanadalone server configuration. We are now going to
proxy it through Cherokee. It is as simple as using the Reverse
Proxy handler to hit the GlassFish server at port 8080.
[[cherokee]]
Configuring Cherokee
~~~~~~~~~~~~~~~~~~~~
Cherokee provides a wizard that will assist you on this task. You can
either dedicate a new virtual server for this, or use a preexisting
one. It is your choice, since the Wizard contemplates both scenarios.
For the former you'll have to access the Wizard from the list of
available ones within the `Virtual Servers` section of Cherokee-Admin,
clicking on the `Add` button at the top of the panel. The latter is
accessed through the same list of Wizards, this time using the `Rule
Management` button within the `Behavior` tab of any given virtual
server. Once the panel with the rules is listed, follow a similar
procedure using the `Add` button located at the top.
The wizard will simply ask for the host to be proxied and will set it
up for you to see. Should you need to add more machines to your
cluster, you can add extra information sources to your Cherokee
configuration and let it deal with all the load balancing.
No extra steps are necessary. You can skip directly to the
link:#deployment[deployment] section of this recipe. If for any reason
the Wizard doesn't work for you, you can always use the manual method
described below.
Manual method
^^^^^^^^^^^^^
You can either create a new virtual server with a matching rule (be it
`default` or anything else) if you are sharing the proxy machine, or
completely dedicate a machine to the Proxy Handler. This will be our
choice, since typically you will be wanting to get the best possible
performance from your proxy server.
Launch Cherokee-Admin on your proxy machine, delete every rule of your
virtual server of choice, and redefine the `Default` rule to use the
`HTTP reverse proxy` handler from within the `Handler` tab. Make sure
to enable the `Preserve Host` checkbox.
You will need to assign it every information source that you have
previously defined, which must be the list of Glassfish-enabled
machines in your cluster.
These information sources are to be defined as external sources, like
the following examples:
[options="header"]
|======================================
|Type |Nick |Connection
|Remote host |GlassFish1 |192.168.1.101
|Remote host |GlassFish2 |192.168.1.102
|Remote host |GlassFish3 |192.168.1.103
|======================================
Refer to the link:modules_handlers_proxy.html[HTTP reverse proxy]
documentation if you need any further help with this.
[[deployment]]
Deploy application
~~~~~~~~~~~~~~~~~~
We will deploy the `quickstart` sample provided by the package using
the administration interface. You can actually skip the web interface
and deploy from the command line, which is a lot faster to replicate
the process among a series of servers. The example is done with one
server, 192.168.1.101, but you can repeat the process for each one of
them.
. To do so, open the admin page mentioned above to access the Server
Admin console.
. Choose Applications -> Web Applications, and insert
`/usr/share/glassfishv2/samples/quickstart/hello.war` into the field
`Local packaged file or directory that is accessible from the
Application Server`.
. After you press `OK`, you will be able to launch it and it will be
available at, for the case of GlassFish1, the URL
http://192.168.1.101:8080/hello
image::media/images/cookbook_glassfish.png[GlassFish demo]
And we are done. The same application is now available through your
proxy. Every request it receives will be dispatched through the list
of its information sources.
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