Sankasaurus

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Archive for August, 2009

Dependency Nightmare for Tomcat on Debian

Posted by PAS on 18 August 2009

I would love to not have to install the real Java and Tomcat manually on Debian, but I have little choice in the matter. Take a look at this:


$ apt-get install tomcat5.5
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
ant ant-gcj ant-optional ant-optional-gcj antlr build-essential debhelper
default-jdk default-jre default-jre-headless defoma dpkg-dev ecj ecj-gcj fastjar
file fontconfig fontconfig-config g++ g++-4.3 gappletviewer-4.3 gcj-4.3
gcj-4.3-base gettext gettext-base gij-4.3 gjdoc hicolor-icon-theme html2text
intltool-debian java-common java-gcj-compat java-gcj-compat-dev
java-gcj-compat-headless jsvc libantlr-java libantlr-java-gcj libasound2
libatk1.0-0 libatk1.0-data libbcel-java libcairo2 libcommons-beanutils-java
libcommons-collections-java libcommons-collections3-java libcommons-daemon-java
libcommons-dbcp-java libcommons-digester-java libcommons-el-java
libcommons-launcher-java libcommons-logging-java libcommons-modeler-java
libcommons-pool-java libcompress-raw-zlib-perl libcompress-zlib-perl libcups2
libdatrie0 libdb4.5 libdigest-hmac-perl libdigest-sha1-perl libdirectfb-1.0-0
libecj-java libecj-java-gcj libexpat1 libfile-remove-perl libfontconfig1
libfontenc1 libfreetype6 libgcj-bc libgcj-common libgcj9-0 libgcj9-0-awt
libgcj9-dev libgcj9-jar libgcj9-src libglib2.0-0 libglib2.0-data libgtk2.0-0
libgtk2.0-bin libgtk2.0-common libice6 libio-compress-base-perl
libio-compress-zlib-perl libio-stringy-perl libjaxp1.3-java libjaxp1.3-java-gcj
libjpeg62 liblog4j1.2-java liblog4j1.2-java-gcj libmagic1 libmail-box-perl
libmail-sendmail-perl libmailtools-perl libmime-types-perl libmx4j-java
libobject-realize-later-perl libpango1.0-0 libpango1.0-common libpixman-1-0
libpng12-0 libregexp-java libservlet2.3-java libservlet2.4-java libsm6 libsqlite3-0
libstdc++6-4.3-dev libsys-hostname-long-perl libthai-data libthai0 libtiff4
libtimedate-perl libtomcat5.5-java libts-0.0-0 liburi-perl libuser-identity-perl
libxcb-render-util0 libxcb-render0 libxcomposite1 libxcursor1 libxdamage1
libxerces2-java libxerces2-java-gcj libxfixes3 libxfont1 libxft2 libxi6
libxinerama1 libxrandr2 libxrender1 libxtst6 make mime-support patch po-debconf
python python-central python-minimal python2.5 python2.5-minimal ttf-dejavu
ttf-dejavu-core ttf-dejavu-extra x-ttcidfont-conf xfonts-encodings xfonts-utils
...
0 upgraded, 146 newly installed, 0 to remove and 0 not upgraded.
Need to get 101MB of archives.
After this operation, 288MB of additional disk space will be used.
Do you want to continue [Y/n]?

WTF? I understand that Tomcat needs some kind of Java, but this is ridiculous. It is installing ant, fonts, compilers and worst of all, the most evil Java ever.

Ubuntu has the sense to make Sun Java available, but even if you do have Sun Java installed, the above is true on Ubuntu.

For shame!

I’ll stick to downloading from java.sun.com and tomcat.apache.org.

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Rackspace Cloud API PHP Library

Posted by PAS on 13 August 2009

I am pleased to annouce my very first open source project hosted at github. The project, called Rackspace Cloud PHP Library is a simple, single PHP file to easily make Cloud Server API calls. Rackspace have not yet released any libraries for their API, possibly because it is still kind of in beta. If they do, I believe there will be of little use for my project, but right now, it has value.

So what was my motivation for this?

Well the Rackspace Cloud Management Console is severly lacking in features. Things such as creating an image of a server (just like you can in AWS EC2), and sharing an IP address between servers (something you cannot do in EC2 – an IP address can only be attached to a single instance at a time). It is this second feature that I am most interested in because it means I can use a virtual IP address (floating IP) to create a HA (highly available) “cluster” of Tomcat servers. I plan on using keepalived to do the IP switching, and Apache with mod_proxy_balancer and mod_proxy_ajp to talk to multiple Tomcat servers. Without reading the poorly written API documention and learning that I could create a shared IP group, I would not have known this was possible.

This project is very much a work in progress, and what is in there now represents only about 8 hours of work. I welcome any feedback, and anyone else who wants to join.

Posted in Blog | Tagged: , , , , | 6 Comments »