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Nice writeup of one organisations adoption of devops ideas, in particular to help improve the quality and maintainability of deployed software.

DevOps is een reactie op de onderlinge afhankelijkheid van software development (Dev) en operations (Ops). De spreekwoordelijke muurtjes tussen de Dev en Ops afdeling bestaan niet meer binnen DevOps. De implementatie van DevOps resulteert in een versnelling van de ' time to market' en een verhoging van de kwaliteit van delivery. DevOps gaat een stap verder in de richting die met Agile werken al is ingezet. Waar bij Agile werken frequent werkende software met de meeste toegevoegde waarde wordt opgeleverd, gaat DevOps nog een stap verder door de applicatie delivery te versnellen.

Orchestrate From Above. Most software does not run on a single machine. Ansible parallelizes complex multi-tier rollouts across app servers, databases, monitoring servers, and load balancers.

As a developer and sometimes system administrator, one of the scariest things I ever encounter is a server that's been running for ages which has seen multiple upgrades of system and application software. Why? Because an old system inevitably grows warts. They start as one-time hacks during outages. A quick edit to a config file saves the day. "We'll put it back into Chef later," we say, as we finally head off to sleep after a marathon fire fighting session.

... created a tool which will allows their customer-facing engineers to programmatically deploy infrastructure for new customers and to update the infrastructure of existing customers through a single, defined interface. This tool uses Consul as the foundation for continuous deployment to these environments. Consul's DNS, Key-Value store, and GUI have given DeltaForce a simple mechanism for reliably delivering software.

Discover what top companies are using Learn about the tech stack behind some of the world's best software companies. See which tools and services they use, and how they're using them.

Devops isn't just about tools, or only about large organisations and complex software. This post introduces some of the practices from the point of view of the Wordpress administrator.

This checklist is comprised of 48 items you can use to gauge the maturity of your software delivery competency, and form a baseline to measure your future improvements. It's not meant to say "you're failing DevOps" or deprive you of a badge (make yourself a badge just for reading this!), but surface areas of potential improvement.

DevOps Knowledge Base - This knowledge base includes topics of: Software Configuration Management, Continuous Delivery, Infrastructure Orchestration and DevOps

A list of software and SaaS, PaaS etc offerings that have free tiers for devs

I'm going to assume you've got a Puppet module already on GitHub. To save messing around with bundler on your local machine, I recommend installing puppet-lint and rspec-puppet as system gems while you're getting this all set up.