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, and many development teams as well. Although all the tools aim to solve the same basic set of problems, they adhere to different visions and exhibit different characteristics.
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? 4
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
Andrew Phillips and Jenkins creator Kohsuke Kawaguchi review state-of-the-art plugins and solutions in the Jenkins ecosystem for achieving efficient, reproducible and secure delivery pipelines. 1
InfoQ reached out to experienced ops engineers to ask them what is “Immutable Infrastructure”, its borders as well as its benefits and drawbacks, in particular compared to desired state convergence. 1
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