Category Archives: 30in30

Cooking Chicken Mango Curry

We need for 3 dinners: Ingredients: 400gr chicken breast fillet 300gr mango a bunch of scallions 6 hand full of rice Spices: cane sugar lemon juice 300ml coconut milk curry paste curry powder garlic powder seasalt curcuma coriander olive oil … Continue reading

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Zabbix Autodiscovery for KVM VM Images

A very short description about Zabbix: Zabbix Agent: Executes Checks on a system that you want to monitor (for example checking the avialable memory). Zabbix Server: Central part that receives values from the agents, serves the frontend with data, throws … Continue reading

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Getting started with Hiera

I am using puppet since the end of 2012 and I finally found a use case for Hiera. This is my way of implementing it: What is Hiera Hiera is split into two parts: The backend is a key/value store … Continue reading

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Link collection of the week

Here is another collection of links I found during the past week: Comparison of PHP and Ruby How (not) to sanitize your user input How to handle your job (automate that shit!) Broken Performance Tools How to boot Linux in … Continue reading

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Extending Disk Capacity for KVM Virtual Machines

From time to time, your data grows and a virtual machine is getting filled up. Here is a short tutorial for extending the disk capacity for KVM machines on LVM2: First step: Poweroff the machine. This is a good situation … Continue reading

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DRY – Don’t Repeat Yourself

Don’t Repeat Yourself – This is an important mantra, I’m trying to work like this for the past years, but the fancy abbreviation never came up my mind, I just found it online. What does it mean? We system administrators … Continue reading

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Installing pry on verrrrry old systems

Everybody loves pry. If you don’t know it: pry is an interactive ruby shell, like irb, but nicer (it hase more colours![and other cool features]). I’ve got a few old CentOS 6 nodes with a very old ruby version: # … Continue reading

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Fixing a messed up git directory

Following situation: You have got a cloned repository in your home directory, you noticed that something changed upstream und you want to get all the fancy changes. You do a: to get the latest tag. What you didn’t check: What … Continue reading

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How to be a good Admin/DevOps/IT person

There are two types of system administrators/DevOps/admins/whatever, the first group has a normal 9-5 job, they stop thinking about IT after work, it is a normal job for them. Then there is another group, these people really love their job, … Continue reading

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#puppethack is coming again!

The event description: ########### Join us for #puppethack, our online puppet community hack day, on December 15th! #puppethack is a collaborative, relaxed online puppet community hack day. It will be an opportunity for Puppet community members and Puppet Labs employees … Continue reading

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