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  • Virtual Panel: Configuration Management Tools in the Real World

    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.

    João Miranda
    on Jul 01, 2014

  • Preparing for Scale: InfoQ Virtual Roundtable with Cloud Practitioners

    How should organizations plan for a cloud environment and optimize it for efficiency at scale? InfoQ reached out to 3 leading cloud practitioners to uncover practical advice on this topic. Each panelist has dealt with the sometimes-messy transition from on-premises to cloud, and coached organizations through their journey.

    Richard Seroter
    on Jun 29, 2014

  • CFEngine's Decentralized Approach to Configuration Management

    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 with a fundamentally decentralized and knowledge-oriented approach. An example demonstrates how those ideas translate into practice.

    Mark Burgess Diego Zamboni
    on Jun 24, 2014

  • Article Series: Automation in the Cloud and Management at Scale

    Cloud computing is more than just fast self-service of virtual infrastructure. Developers and admins are looking for ways to provision and manage at scale. This InfoQ article series will focus on automation tools and ideas for maintaining dynamic pools of compute resources.

    Richard Seroter
    on Jun 23, 2014

  • The Top Automation Tools for Public Cloud at Scale

    As more organizations expand their use of public cloud services, from early-stage startups to the biggest businesses and governments in the world, the problems of cloud computing at scale start to arise.

    Andi Mann
    on Jun 21, 2014

  • Purely Functional Configuration Management with Nix and NixOS

    This article gives a short introduction to NixOS, a Linux distribution, and to Nix, the package manager on which NixOS is based. These provide a declarative approach to configuration management with many advantages to users, such as strong reproducibility and atomic upgrades and rollbacks.

    Eelco Dolstra
    on Jun 08, 2014

  • Ansible’s View on IT Automation

    Michael DeHaan, creator of Ansible, introduces the general-purpose IT automation system. He describes the tool’s guiding principles: simplicity, ease of use and maximum security. The philosophy behind its community is also discussed, including the importance of Ansible’s plugin-based model. Michael uses a simple but common scenario to demonstrate Ansible.

    Michael DeHaan
    on May 31, 2014

  • Exploring the ENTIRE DevOps Toolchain for (Cloud) Teams

    When assessing technology that empowers a DevOps transformation, it’s easy to focus in on the headline capabilities (“configuration management!”) and miss out on the bigger picture. How can teams shipping cloud (or on-premises) applications use the full suite of DevOps technologies to simplify delivery and management at scale? This article classifies and explains key enabling technologies.

    Richard Seroter
    on May 28, 2014

  • Reliable Auto-Scaling using Feedback Control

    Philipp K. Janert explains how to reliably auto-scale systems using a reactive approach based on feedback control which provides a more accurate solution than deterministic or rule-based ones.

    Philipp K. Janert
    on Feb 19, 2014

  • Book Review: Test-Driven Infrastructure with Chef - Second Edition

    The second edition of Stephen Nelson-Smith's book "Test-Driven Infrastructure with Chef" covers the principles behind "Infrastructure as Code", provides an introduction to Ruby, Chef, and important Tools. The main part consists of detailed examples on how to use the tools required to write fully tested infrastructure code.

    Matthias Marschall
    on Feb 17, 2014

  • Monty Taylor and Jim Blair on CI and Test Automation at OpenStack

    Monty Taylor and James Blair talk about the build and test challenges they face at OpenStack, and how they managed to tackle them. Managing hundreds of VMs on public clouds, integrating up to 400 commits a day and running thousands of test jobs on them are some of the challenges described.

    Sai Yang
    on Dec 29, 2013

  • The Perfect Dev/Test Lab: 10 Principles that make it Possible

    Software that drives the business typically takes inordinate amounts of time to develop and test. Now with new technologies able to normalize the private and public clouds the ultimate software development lab is not only feasible but cost-effective as well. To achieve hyper-agile software development, here are key principles for building the next-gen dev/test lab of enterprise DevOps’ dreams.

    Rami Tamir
    on Dec 12, 2013
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