GitOps is a modern twist on DevOps that prescribes one or more Git repositories as the “source of truth” for the declarative state of your environment(s) and applications. In GitOps, all environment and application configuration is stored as code and actioned upon to change the state of the environment/application accordingly. In this post, we’ll explore how you can get started with this concept and try GitOps out for yourself on a local test cluster. Create a Local Kind Cluster Kind (Kubernetes In Docker) is a local cluster tool under a Special Interest Group (SIG) in the Kubernetes project space. Kind … Read More
AWS Adds Docker Support to Elastic Beanstalk
Today Amazon announced and deployed Docker support for Elastic Beanstalk, Amazon Web Service’s Platform as a Service offering. This brings the supported platforms to the following list: Node.JS, PHP, Python, .NET, Java, Ruby and Docker. Now it is easier than ever to deploy onto AWS your Docker backed application at any scale, from a single instance on up. From the AWS blog post: “To use an image with Elastic Beanstalk, you will create a file called Dockerrun.aws.json. This file specifies the image to be used and can also set up a port to be exposed and volumes to be mapped in … Read More
How Docker Addresses Kernel Level Redundancy
Docker is making waves, especially among those in system administration, developer-operations, and cloud/virtualization roles. Here we attempt to explain Docker’s most disruptive feature without expecting prior knowledge of Docker’s underlying technologies. In a virtualized datacenter, we have one OS per VM and the hardware is virtualized for each VM. We may have any number of VMs running services (web hosting, backup services, Oracle, or others) on the same physical machine. Through the abstraction of hardware and OS data to files, we can migrate VMs across physical machines and increase the efficiency of cycles previously left idle when using a single … Read More
M&S Consulting Organizes Docker Pittsburgh
M&S Consulting is organizing the first Docker Pittsburgh Meetup on Monday, March 10th. We have seen great response from the community and are looking forward to meeting everyone. Also much thanks to Docker for providing free tees and stickers! We will start with short introductions, followed by a technical talk from Blake Willard, a Consultant at M&S. All levels of experience are welcome. Free tees and stickers will be available in limited numbers, so arrive early! Don’t forget to register for this Monday and follow both @DockerPGH and @mandsconsulting on twitter. Topic: Blake will be introducing Docker along the entire … Read More