This is a story about four cross-functional scrum/DevOps/feature teams delivering and managing a business-critical 24/7 system used by vessel-traffic services operators and many other users, a compendium of topics that derive from our more than four years of agile and scrum practices at the Port of Rotterdam, one of the world's busiest ports.
Taste Test, by Matt Jaynes, is a book that uses a simple scenario to compare Ansible, SaltStack, Chef and Puppet. On the recently released 2nd edition it adds new chapters on Docker, the communities around the tools, and how they fare on security. InfoQ took this opportunity to talk with Matt to know more about his thoughts on the tools and his approach to configuration management when consulting.
Configuration management tools are a hot topic on the DevOps community and IT organizations in general. InfoQ reached out to users of each of the major tools (Ansible, CFEngine, Chef, Puppet and SaltStack) to ask them about their experiences. Why did they choose a given tool? How was the tool introduced in the organization? These are some of the questions they answered.
Configuration management is the foundation that makes modern infrastructure possible. Tools that enable configuration management are required in the toolbox of any operations team.
Mark Burgess and Diego Zamboni introduce CFEngine. They describe the challenges regarding web scale - scale, complexity and knowledge - and how CFEngine helps to tackle those challenges.
Joseph Hall, SaltStack senior engineer, introduces the the remote execution and configuration management system and its guiding goals. Joseph uses a simple LAMP scenario to demonstrate SaltStack.
The article introduces NixOS, a Linux distribution, and Nix, a package manager. These provide a declarative approach to configuration management, such as strong reproducibility and atomic upgrades.
Michael DeHaan, creator of Ansible, introduces the IT automation system, its guiding goals and the philosophy behind its community. Michael uses a simple but common scenario to demonstrate Ansible.
Once the cultural DevOps transformation is under way, how can teams shipping cloud (or on-premises) applications use the full suite of DevOps technologies to simplify delivery and management at scale? 2
Scripting database objects change-scripts is a risky thing to automate. A better solution needs to be implemented in the shape of Continuous Delivery and DevOps for database.
"In Search of Certainty", written by CFEngine's creator, Mark Burgess, takes us into a journey through physics and biology and how it relates to the information infrastructure realm.
John Kordyback explains why you should and how you can introduce Continuous Delivery into a typical enterprise, where dozens of systems adopted over the years generate massive complexity. 4