Viewing posts tagged devops wiki

How to install Selenium on Linux and automate your web tests



Selenium is an end to end web testing toolkit that allows you to test a web application in any browser of your choice. It does this with the help of a software called WebDriver which allows you to emulate a web browser and  test your web application in it.

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Managing Linux server configs with the SaltStack



I came across Salt while searching for an alternative to Puppet. I like puppet, but I am falling in love with Salt :). This maybe a personal opinion but I found Salt easier to configure and get started with as compared to Puppet. Another reason I like Salt is that it let's you manage your server configurations from the command line, for example:

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Using Foreman, an Opensource Frontend for Puppet



The recent vulnerability in bash, got me running to update bash. It’s easy when you have maybe one or two Linux servers, but what do you do if you have 100’s or even thousands or servers? You need to use a server configuration and management tool like puppet. However, instead of using the command line, I wanted a GUI tool where I could select the servers or server group and select an action.
That is where I found Foreman, A opensource tool which not only handles configuration of your servers but also does provisioning. Foreman is easy to install, opensource, has community based support and a good deal of documentation.

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How to display a changing output like top



In my earlier post on linux memory management, I showed you how you can get the exact memory usage of your script by using py_mem.py.
watch command examples
This script, without any options will run once and give you the current memory usage of the system.
But what if you wanted real time memory usage?, In other words, if a program which was using up memory did not run when you ran the script py_mem.py, you would not know about it right?

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A simple way to install and configure puppet on CentOS 6



Puppet is an automation tool which allows you to automate the configuration of software like apache and nginx across multiple servers.

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