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The latest News and Information on DevOps, CI/CD, Automation and related technologies.

How to Build Cloud Native CI/CD Pipelines on Kubernetes and Release Software Faster

Kubernetes is a powerful, open source, container orchestration/cluster management tool that helps you manage and deploy your containerized application and services on a cluster of machines. Operationalizing Kubernetes involves many different pieces, but a very important aspect is management of the containers and using Helm to build charts for your Kubernetes deployments.

Kubernetes Master Class: Migrating Existing Applications to Kubernetes

Containers help teams develop, package, and deploy software in environments ranging from personal laptops to data centers. They can help improve release velocity, reduce resource consumption, and encourage modular, flexible application design. However, migrating existing applications to containers is not without logistical challenges.

Web Frameworks Implication for Serverless Cold Starts

In the world of web applications, Web Frameworks (WF) existed for a very long time. Traditional WF existed in a world without the notion of microservices, let alone the notion of serverless. Many first-time serverless users use WF to ease the transition into the ecosystem, sometimes unaware of its effect on the performance. The following post focuses on potential cold start issues when using WF in the NodeJS ecosystem.

K8S is the Kernel

One of my former teammates approached me the other day (and by other day i mean like 3 months ago) and asked ‘Am I thinking about this right? Kubernetes is actually akin to the Linux Kernel. So Rancher and OpenShift are distributions of Kubernetes. And for a supported enterprise application I’m more likely to use a more enterprise focused distribution than a DIY distribution, yeah?’ To which I responded ‘Yep, you hit the nail on the head’.

Considerations When Designing Distributed Systems

Today’s applications are marvels of distributed systems development. Each function or service that makes up an application may be executing on a different system, based upon a different system architecture, that is housed in a different geographical location, and written in a different computer language.

Introducing Submariner: Multi-Cluster Networking for Kubernetes

As more organizations benefit from the increased availability and security offered by multi-cluster Kubernetes, the release of Submariner, a new open-source project sponsored by Rancher, now enables containers in different clusters to establish a direct network connection with each other.

Lambda Deployment Frameworks Compared

With AWS Lambda, deploying a new version of our application has never been simpler. However, we still need to take care of some underlying plumbing. Such as managing the configuration for our functions as well as other related resources such as API Gateway, CloudWatch log groups and IAM policies. Depending on the event sources you would like to use, you also need to provision the necessary EventSourceMapping in order to use Lambda with the likes of Kinesis Streams and SQS.

StackStorm 2.9.3/2.10.3

In the last couple of weeks StackStorm has published back-to-back releases. 2.10.2 is a traditional patch release from StackStorm, and you’ll find some of the highlights below. 2.10.3 and 2.9.3; however, are releases to address CVE-2019-9580. I want to thank Barak Tawily and Anna Tsibulskaya: the researchers who discovered and submitted a patch for the issue.