5 DevOps Principles

After "doing" DevOps for more than 10 years and being asked again and again to "define" DevOps I suggest the following definition:

DevOps is the result of 5 principles:

DevOps is ...

… if every person uses the same tool for the same job

… codified knowledge - everybody contributing their part to common automation

… if all people have the same privileges in their tooling

… if human error is equally possible for Dev and Ops

… replacing people interfaces by automated decisions and processes

… the result

It is important to understand that DevOps is the result of doing the right things and not something to install, adopt or buy. And it is not a new word for doing the same as before.

German version:

DevOps ist das Ergebnis von 5 Grundsätzen:

DevOps ist …

… wenn jeder Mensch für dieselbe Tätigkeit dasselbe Werkzeug benutzt

… kodifiziertes Wissen – alle tragen ihren Teil zu einer gemeinsamen Automation bei

… wenn alle Menschen gegenüber ihrer Technik dieselben Rechte haben

… wenn menschliche Fehler für Dev und Ops gleichermaßen möglich sind

… menschliche Schnittstellen durch automatisierte Entscheidungen und Prozesse ersetzt werden

… das Ergebnis

Happy DevOps Campers

Yes indeed, GitOps is one of the best ways to achieve DevOps.

Selected additional materials (everything is my own content):

And please beware of DevOps Anti-Patterns 😀

Please check out the complete list of my publications for more content.
Like this content? You could send me something from my Amazon Wishlist. Need commercial support? Contact me for Consulting Services.

Popular posts from this blog

Overriding / Patching Linux System Serial Number

Image
I'm a big fan of test driven development  (TDD) for infrastructure components. I'm currently working on a hardware-related topic where we also use the system serial number as identifier. To create a proper integration test, we need to be able to start a system and set the serial number to a known value. This can easily be done with the help of virtual machines like in VMware or VirtualBox , but I couldn't find a way for changing the system serial number on hardware boxes, cloud VMs (e.g. on Alibaba Cloud) or other Linux system. Problem Analysis I was thinking: Linux is the operating system where I can potentially do everything . So how hard can this be? After some digging around I found out that there are those main sources for the serial number on Linux: /sys/firmware/dmi/tables/DMI contains a binary blob of Desktop Management Interface data provided by the kernel and the dmidecode utility is commonly used to decode...
Read more

A Login Security Architecture Without Passwords

Image
Following up on Lifting the Curse of Static Credentials and Eliminating the Password of Shared Accounts , I have many discussions about why we would benefit from removing password prompts for website logins. Let's dig deeper into the details and show why removing password prompts leads to a  safer security architecture . Update 11.03.2022: Added more details about business vs. consumer websites and additional security suggestions surrounding WebAuthn Problem Space For context, imagine a website that needs to identify online users via their email address. We assume that the website in question is not the primary email system of a user but some other website, e.g. an e-commerce shop system or a collaborative productivity tool. As a User As a user of that website I want to easily sign up for an account have an easy way to login into the account be sure that my account is protected from others or attacks be able to easily recover access to my acco...
Read more

Fixing Chrome Color Printing on Linux with HP Color LaserJet M880

Image
It seems like I can't get a printer that "just works". I recently decided to replace our HP X476 printer with something nicer and bigger, an HP Color LaserJet M880 ( background story & review in German ). And of course there is something that needs fixing: The Chrome browser on Linux wouldn't let us print in color, even though all other applications had no problem to print in color. Even with Chrome color printing was possible, if one used the system printing dialog instead of the built-in Chrome print preview. This strange behavior of course piqued my curiosity. After some digging around I found out that the Chrome browser needs to parse and understand  the printer driver PPD! Chrome tries to find out how to configure color or grayscale printing in order to offer the user the choice. If Chrome can't understand the printer driver then it simply doesn't offer the choice between color and grayscale — and then some printer driver default can ch...
Read more