Archive for the 'sysadmin' Category
Friday, July 17th, 2009
The OPACs at HLT have been failing one by one, so some replacements are in order. The previous OPACs ran Mozilla in kiosk mode on a hand modified Debian install sufficiently rickety that after ~4 years I didn’t really want to touch it.
Somewhat surprisingly, the task (taking some hardware and netbooting it into a teenage-vandal-proof web kiosk) didn’t appear to be a solved problem – there are still a lot of people rolling their own, I’ve done that once, I didn’t really want to do it again.
Webconverger almost fits the bill, with a couple of caveats: (more…)
Posted in koha, open source, sysadmin | No Comments »
Sunday, October 14th, 2007
The other day I was asked how much disk space a particular Kete project’s production database used. I didn’t have an answer, so I started searching for one.
In my case, the db software is MySQL and getting a report about various aspects of a db’s tables boils down to this query:
show table status;
The output of this query has way more information than I need, plus to get the total number of bytes used you have to add all the values up anyway, so I decided to make a rake task to make this repeatable and return something succinct.
I have added the new rake task to the Kete app’s codebase. If you aren’t a Kete user, but need this functionality for your Ruby on Rails app, you can find it here:
http://svn.kete.net.nz/projects/kete/trunk/lib/tasks/db-disk-usage-report.rake
Note there is a formatting method taken from the Rails Helpers, I would love to not duplicate this definition. If anyone has a recommendation for the best way to pull this method into this rake task, I would appreciate it. Probably a simple include statement, but I didn’t get around to figuring out the correct incantation.
I would also love to hear how best to make this handle other database software, for example PostgreSQL, too.
Cheers,
Walter
Posted in kete development, open source, random, ruby on rails, sysadmin | 1 Comment »
Sunday, October 14th, 2007
As previously mentioned, I have written a guide on how to set up Kete (also applicable to other Rails apps though Kete includes some extra required software and niceties to make it easier) for Development on Mac OS X. This guide also includes best practices for Deployment. So the following guide can be seen as the first half of the story:
http://kete.net.nz/documentation/topics/show/16-creating-a-kete-development-environment-on-mac-os-x
But what about the host that you are deploying to? I cover that for Debian Etch in the following guide:
http://kete.net.nz/documentation/topics/show/15-preparing-a-debian-etch-host-to-be-deployed-to-for-kete
You might also be curious what software Kete requires. Here’s a breakdown:
http://kete.net.nz/documentation/topics/show/19-technical-requirements
Cheers,
Walter
Posted in kete development, open source, random, ruby on rails, sysadmin | No Comments »
Sunday, October 14th, 2007
I’ve added a guide over at Kete.net.nz for how to install Kete for development on Mac OS X. You can find hit here:
http://kete.net.nz/documentation/topics/show/16-creating-a-kete-development-environment-on-mac-os-x
If anything doesn’t work for you, please let me know.
Cheers,
Walter
Posted in kete development, open source, random, ruby on rails, sysadmin | No Comments »
Sunday, September 30th, 2007
I’m going to outline how to set up Aquamacs for my IRC requirements with the built in ERC emacs IRC client so that it automates joining the server and channels I want, with some other bells and whistles (the bell part, literally!). All of these steps have .emacs file equivalent, so you could use it as a starting pointing point for figuring out how to set them, even if you don’t use Aquamacs (Mac OS X GUI emacs).
Here are the steps:
(more…)
Posted in kete development, open source, random, sysadmin | No Comments »
Friday, June 8th, 2007
People are moving away from managing their Rails plugins with svn externals towards Piston’s easy vendor branch management approach.
But what if you want to use Piston’s easy version of Subversion’s vendor branch management for dealing with the code for an entire Rails application based on an open source project like Mephisto, Collaboa, or in my case Kete? (more…)
Posted in kete development, open source, random, ruby on rails, sysadmin | No Comments »
Wednesday, June 6th, 2007
From a howto on Robby on Railshere. You’ll want to read http://www.rubyinside.com/advent2006/12-piston.html for more commands and reasons to go this route.
(more…)
Posted in kete development, open source, random, ruby on rails, sysadmin | No Comments »
Thursday, May 10th, 2007
I have a host where Nginx listens on port 80 and dishes out requests to various apps depending on what their host name is. It also does appropriate load balancing. Primarily I use this for hosting various instances of Kete Ruby on Rails apps, but I also use it for supporting the subversion repository under Apache and a few other RoR apps, too. I wanted to setup up web log statistics for all of the above and I wanted to do it in such a way that it’s easy to add another web app to view statistics for.
Awstats is wicked easy to setup if you live in the LAMP world, but I could find a decent tutorial that covered my setup. So here goes… (more…)
Posted in kete development, open source, perl, random, ruby on rails, sysadmin | 5 Comments »
Monday, January 29th, 2007
This assumes that you have already installed things outlined here.
$ sudo apt-get install swig
$ sudo apt-get install libsvn-ruby1.8
$ sudo gem install redcloth
$ sudo gem install syntax
$ sudo gem install -y xhtmldiff
$ cd /path/to/where/you/have/your/apps
$ svn co http://svn.collaboa.org/svn/collaboa/trunk/ your_app_name_for_collaboa
$ cd your_app_name_for_collaboa
$ cp config/database.yml.sample config/database.yml
(more…)
Posted in open source, random, ruby on rails, sysadmin | 1 Comment »
Sunday, January 28th, 2007
This assumes you have already installed the subversion package by following the directions outlined here.
Install Apache2 and mod_dav_svn
$ sudo apt-get install apache2 libapache2-svn
In my case, I already had something running on port 80 (nginx handling requests to various app servers), so apache2 was set to “NO_START to 1 in /etc/default/apache2″. I’ll get back to that later when we configure /etc/apache2/ports.conf so that our apache2 instance is just another app server behind nginx.
(more…)
Posted in open source, random, sysadmin | 1 Comment »
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