kb.hurricane-ridge.com

The Agile Acid Test

admin — Mon, 09 Jan 2012 14:49:05 +0000

Agile teams produce a continuous stream of value, at a sustainable pace, while adapting to the changing needs of the business.

More here.

rsync with a non-default ssh port

admin — Wed, 28 Dec 2011 13:49:04 +0000

The rsync man page notes that the “-e” or “–rsh” flag lets you “specify the remote shell to use”. This can be used to specify transfer over a non-standard SSH port using the “-p” flag to the ssh binary:

SSH_PORT=...
rsync [OPTION...] -e "ssh -p $SSH_PORT" [USER@]HOST:SRC... [DEST]

Use a non-default port with ssh-copy-id

admin — Mon, 26 Dec 2011 13:57:18 +0000

Quote a “-p” flag specifying the port with the “user@machine” portion of the arguments; e.g. for port 2234:

ssh-copy-id -i ~/.ssh/id_rsa.pub '-p 2234 user@machine'

Hat tip to Mike Gerwitz for getting me looking in the right direction, although the solution described on his blog does not work with the version of ssh-copy-id I have. (Edit: Looks like the same solution that I arrived at was pointed out in the comments on the above blog post.)

Generate an SSH Public Key from a Private Key

admin — Thu, 08 Dec 2011 04:08:33 +0000

Use ssh-keygen:

ssh-keygen -y -f key.pem > key.pub

SGE Queue States

admin — Fri, 30 Sep 2011 16:21:19 +0000

Reference: Monitoring and Controlling Queues

a – Load threshold alarm
o – Orphaned
A – Suspend threshold alarm
C – Suspended by calendar
D – Disabled by calendar
S – Suspended by subordination to another queue
c – Configuration ambiguous
d – Disabled
s – Suspended
u – Unknown
E – Error

virtualenv-burrito example bootstrap

admin — Thu, 08 Sep 2011 15:32:10 +0000

curl -s https://raw.github.com/brainsik/virtualenv-burrito/master/virtualenv-burrito.sh | bash
source ~/.venvburrito/startup.sh
mkvirtualenv --no-site-packages fabric
pip install Fabric

You will likely want the python-dev .deb installed before starting this process.

When you want to switch back to your system python installation:

deactivate

List SGE resource availability with qstat -F

admin — Wed, 31 Aug 2011 19:32:54 +0000

For a queue that uses h_vmem as a resource:

> qstat -F h_vmem queuename qtype resv/used/tot. load_avg arch states --------------------------------------------------------------------------------- all.q@compute-1-0.local BIP 0/0/12 0.05 lx26-amd64 hc:h_vmem=48.000G

Building ri with RVM

admin — Wed, 18 May 2011 13:29:27 +0000

> rvm docs generate-ri
Generating ri documentation, be aware that this could take a *long* time, and depends heavily on your system resources...
( Errors will be logged to /opt/rvm-base//rvm/log/ruby-1.8.7-p334/docs.log )

Add a new Gitolite Repository for Already-Exisiting Code

admin — Mon, 09 May 2011 17:29:11 +0000

Create the repository in your gitolite admin repository (in conf/gitolite.conf) and push changes to create an empty repository.

Push the repository to gitolite:

> git push --all gitolite@git:newrepo
Counting objects: 1332, done.
Compressing objects: 100% (829/829), done.
Writing objects: 100% (1332/1332), 14.36 MiB | 8.67 MiB/s, done.
Total 1332 (delta 391), reused 1233 (delta 336)
To gitolite@git:newrepo
 * [new branch]      master -> master
> git push --tags gitolite@git:newrepo
Everything up-to-date

You may want to set the local repository’s origin:

git remote add --track master origin gitolite@git:newrepo

Hot Adding a Disk to a Linux ESX VM

admin — Mon, 02 May 2011 19:11:18 +0000

Add the disk through the VMware user interface. Then, force the host to rescan for the new drive, as root:

for i in /sys/class/scsi_host/*; do echo '- - -' > $i/scan ; done

Reference: Vmware Linux Guest Add a New Hard Disk Without Rebooting Guest