Some of you will tell me that most utility is doing it as well. And that’s right, but with ccze you will be able to colorize everything with a pipe. For example when you play with a verbose service like Pacemaker, you need to get colorization if you want to win time. Here is an example:
tail -f /var/log/syslog | ccze -A
A meetup on Ansible and SaltStack will take place in Paris next Monday. It unfortunately has not been initiated on the traditional meet up website and you may missed it like me.
So if you’re interested by those two configuration tool outsiders, follow the link. Both tools are written in Python, that why it is a Python meetup at first.
I’m happy to participate to the meetup as this is the first one, I’m sure I’ll learn interesting things on it and meet new faces :-)
When you manage Postfix and have a trouble with your mail infrastructure, you may want to set in maintenance your Postfix without loosing any mails. Here is a way to hold the queue, giving the time to analyze the problem and then release the queue.
I’ve wrote some tips on it. I hope it will help you.
Packer is a tool for creating identical machine images for multiple platforms from a single source configuration. You can win a lot of time by testing your application on multiple environments (AWS, OpenStack, VirtualBox, Vmware…).
Let’s say you’ve got a LAMP environment to deploy in production on OpenStack. However, you can’t perform your development/integration on it as you don’t have access yet. You can’t loose time and wait for it to test.
When you have a huge amount of mail to deliver, you can’t release the queue at once and let the server maximize the outgoing mail throughput ! The result will be: you’ll get blacklisted from a lot of MX servers.
That’s why you should take care of it and do traffic shaping. I’ve wrote a little tips on it.
The 1.5 version of Vagrant has been released and that’s awesome ! They finally did a Cloud where all Vagrant boxes could (https://vagrantcloud.com/) be inventoried and easily deployed through command line !
You can find my boxes here. If you want to add one, it’s really simple:
vagrant box add deimosfr/debian-wheezy And the second awesome feature is…the sharing! You can for example have access to a distant and nated Vagrant instance through SSH!
I recently played with HAProxy and discovered that I’ve never made a documentation regarding this fantastic software. So if you don’t know what HAProxy is, it’s a load balancer working on layer 7 and specialized for http protocol.
It is able to handle sticky sessions which is really powerful. More than that, it has a small footprint and can work under a high load traffic.
Here is my documentation.
