Category Archives: DevOps
“This is the first article in a three-part series on managing LAMP environments (Linux, Apache, MySQL, and PHP) with Chef (a configuration management tool).
The series covers using Chef to provision a development environment on a virtual machine with Vagrant and VirtualBox, and a production environment in the cloud with Amazon EC2. Prior knowledge of how to manually configure a LAMP stack is assumed–this tutorial shows how to automate the process, but doesn’t explain the configuration options in any detail.”
via Managing LAMP environments with Chef, Vagrant, and EC2 (1 of 3) | The Blog of Jason Grimes.
Don’t Automate What You Don’t Understand
“Automation is a noble goal, but in order to automate anything you have to have visibility and understand what you have. A common misconception for enterprises commencing their automation journey is that the key preparation work is choosing a tool and training their staff up. The real work is actually gathering requirements. With legacy and hybrid infrastructure in play what matters most is getting visibility of current state to
take control of the chaos.”
Dev “Programming” Ops For DevOps Success. This video (with slide set) is a thorough presentation discussing the goals and challenges of devops.
Some Salt for that Heartbleed — SaltStack.
Saltstack is another automation and orchestration tool much like Chef and Puppet. The latest attack vector, heartbleed, is exploiting an OpenSSL vulnerability. OpenSSL has been remediated and now it is the sysadmin and devops job to apply the latest OpenSSL update to all their servers. To do this, using salt, they simply execute pkg.install openssl refresh=True; This single command can be used to remediate entire datacenters in less time than it takes to make a cup of coffee. Very, very powerful.
Docker is red hot at Red Hat | DevOps.comDevOps.com.
Great news for early adopters of RedHat’s OpenShift. Docker will allow portability of an app from start of engineering to full-scale production. Great concept that continues to repeat itself over time.
The DevOps Security Handbook: Building Security In With Chef, Part III – Markerbench. In this article we learn how to configure chef with vaults, use it to configure SSL, and other security related aspect that come with large scale configuration management deployments.