Saiweb » CentOS

RedHat mock your SCM

Buzz — Fri, 03 Feb 2012 16:33:19 +0000

The mock tool can be a wonderful thing, allowing you to produce rpm packages for any rpm based system (assuming your have the written .cfg for it).

What I did find a little lacking on the documentation side was the SCM integration (read: Source Control Management), git/svn etc …

In short so long as your rpm spec file is in your SCM (and it should be), moc will build your rpm from your sources in scm, which can be used for.

1. bleeding edge builds for testing
2. builds from “stable tags”

Yes yes yes … obvious I know …

So with no futher ado here is the syntax:

1	mock -r your_target --scm-enable --scm-option method=git --scm-option package=git_project --scm-option git_get='git clone git@git_ip_address:SCM_PKG.git SCM_PKG' --scm-option spec='SCM_PKG.spec' --scm-option branch=1-2 --scm-option write_tar=True -v

scm-enable – turns on the use of scm
scm-option – set an option for the scm in use

The above worked for me, you will need to adjust it acordingly, i.e. if your spec file is not named identically to that of your git project: –scm-option spec=’specfile_name.spec’

This will tie me over untill I get chance to play with my monkey farmTweet

Boxgrinder – setting up a simple CentOS LAMP stack, and deploying it to KVM

Buzz — Tue, 16 Aug 2011 11:35:54 +0000

If you haven’t tried boxgrinder then you are missing out, it makes it extremely easy to script the generation of a virtual machine for output to Rackspace (Well not yet), ec2, vmware, virtualbox, KVM etc.

In this post I will cover the basic generation of a LAMP (Linux Apache MySQL PHP) stack CentOS appliance, nothing to complicated I assure you, and no magic like auto deployment spin up etc … that’s for later … no skipping ahead!

First of all you’re going to need boxgrinder I recommend downloading the Meta appliance, as it has all the tools you need already.

Now I am covering the following.

basic use of boxgrinder-build on the meta appliance
creation of centos lampstack basic
deploying the image to KVM

I’m going to have to assume that you are capable of downloading and starting up the meta appliance yourself, and focus more on the stack setup.

Grinding your VM

Ok so you are going to need a YAML file defining the CentOS lamp stack, save this on your meta appliance as CentOS-lamp.yaml

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name: CentOS-lamp
summary: Generic CentOS 5.6 LAMP stack, with some apache & php tuning
version: 1
release: 0
hardware:
cpus: 2
memory: 1024
partitions:
"/":
size: 5
"/var/www":
size: 15
os:
name: centos
version: 5
password: changeme

On your Meta appliance run.

1	boxgrinder-build -d CentOS-lamp.appl

This process will take a while, so go and get a coffee, this will produce ./build/appliances/x86_64/centos/5/CentOS-lamp/CentOS-lamp-sda.raw once complete, if you run into issues the -d flag is “debug” paste your log output int the comments and I will do my best to diagnose and fix your issue.

Deploying to KVM

boxgrinder has SFTP support for pushing to remote servers, you can use this if you like to automate the “push” of the image to your KVM server, at the moment automated deployment to KVM is not support but may be coming soon.

Assuming you have placed you image in /var/lib/libvirt/images/

1	virt-install -n "Saiweb - CentOS-lamp Demo" -r 1024 --arch=x86_64 --vcpus=1 --os-type=linux --os-variant=rhel5.4 --disk path=/var/lib/libvirt/images/CentOS-lamp.raw,size=20,cache=none,device=disk --accelerate --network=bridge:br0 --vnc --import

Post startup

this is a VERY basic setup I have not covered any of the post install options in this post (but I will in future posts), so.

1 2	chkconfig httpd on && service httpd start chkconfig mysqld on && service mysqld start

This will set your services to automatically start at startup, and start them.Tweet

Fixing OSX Lion AFP the version of the server you are trying to connect to is not supported

Buzz — Thu, 21 Jul 2011 13:58:01 +0000

For those using netatalk for AFP shares in this case I am using CentOS, the EL5 compiles are missing the configure lines for the dhx2 extension, which is required by OSX Lion, if you are running x86_64 you can grab this file: netatalk-2.0.5-2.x86_64.rpm I have also emailed the Package maintainer @ EPEL with the changes I have made for this RPM so I would like to think that -2 will be available from EPEL soon.

Let me know if you have any issues with my RPM.

UPDATE: Official Rebuild in testing

Syntax highlighting vi for rhel/centos

Buzz — Tue, 06 Apr 2010 15:52:56 +0000

The default install of VI is very basic, and being as I spend a lot of my time in there I find syntax highlighting invaluable, to get this however you will need the vim-enhanced package.

So run the following to install this package and setup an alias for vi.

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yum install vim-enhanced
echo "alias vi='/usr/bin/vim'" >> ~/.bashrc
echo "syntax on" >> ~/.vimrc
alias vi='/usr/bin/vim'

And you’re done:

Adding pyinotify to CentOS 5 x64

Buzz — Tue, 16 Jun 2009 15:45:44 +0000

In order to get pyinotify working on CentOS 5 x64 a few workarounds need to take place.

(Thanks to Matthew Ife at ukFast for help with this)

First off you are going to need the python-ctypes RPM, available from DAG here: python-ctypes-1.0.0-2.el5.rf.x86_64.rpm

Once installed you are going to need the Fedora 8 python-inotify SOURCE rpm available from here: python-inotify-0.8.0-3.r.fc8.src.rpm

The easiest way I found to extract the required packages was using the following:

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mkdir ./python-inotify
cd ./python-inotify
wget ftp://ftp.pbone.net/mirror/archive.fedoraproject.org/fedora/linux/updates/8/SRPMS.newkey/python-inotify-0.8.0-3.r.fc8.src.rpm
rpm2cpio ./python-inotify-0.8.0-3.r.fc8.src.rpm | cpio -idv
tar -zxvf ./pyinotify-0.8.0r.tar.gz
cd ./pyinotify
./setup.py install