Nov 012016

Today I want to repost a great article first posted on sysadvent blog.

I think it’s a great post that show how to integrate different software to achieve a modern continuos integration.

Original article by:
Written by: Paul Czarkowski (@pczarkowski)
Edited by: Dan Phrawzty (@phrawzty)

Docker and the ecosystem around it have done some great things for developers, but from an operational standpoint, it’s mostly just the same old issues with a fresh coat of paint. Real change happens when we change our perspective from Infrastructure (as a Service) to Platform (as a Service), and when the ultimate deployment artifact is a running application instead of a virtual machine.

Even Kubernates still feels a lot like IaaS – just with containers instead of virtual machines. To be fair, there are already some platforms out there that shift the user experience towards the application (Cloud Foundry and Heroku come to mind), but many of them have a large operations burden, or are provided in a SaaS model only.

In the Docker ecosystem we are starting to see more of these types of platforms, the first of which was Dokku which started as a single machine Heroku replacement written in about 100 lines of Bash. Building on top of that work other, richer systems like Deisand Flynn have emerged, as well as custom solutions built in-house, like Yelp’s PaaSta.

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Aug 212012

This is an article of mine, first published on Wazi

Every organization must monitor its infrastructure’s uptime and performance. While the popular Nagios application is a good general-purpose monitoring program that you can extend with plugins to handle just about any task, you may do even better by employing Cacti as a graphical front end to RRDTool‘s data logging and graphing functionality. Cacti was developed specifically to monitor and collect performance information, while Nagios is more oriented toward state changes, such as noting whether a daemon is up or down.

RRDTool stores all of the necessary information to create graphs and populate them with data in a MySQL database. Cacti provides templates to gather and show information such as system load (CPU, RAM, disks), users connected, MySQL load, and Apache load, all of which can affect the performance of your site.

Cacti’s front end is completely PHP-driven. It supports data gathering via different methods such as scripts in any language and SNMP.

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