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Containers

The latest News and Information on Containers, Kubernetes, Docker and related technologies.

Load Balancing with Kubernetes: concepts, use cases, and implementation details

When it comes to containerizing user applications and deploying them on Kubernetes, it really comes down to 2 major parts - deploying the application and exposing it for access internally or externally. And as your application gets bigger, providing it with Load Balanced access becomes essential.

How to Monitor AWS Elastic Beanstalk with CloudWatch

AWS Beanstalk allows you to spin up entire environments (EC2 instances, ELBs, etc.) to support an application without you having to configure the resources manually. However, since it’s a managed service, you have less visibility with traditional monitoring tools. As such, it becomes even more important to take advantage of the available monitoring tools in AWS. In this post, we’ll explain how to use CloudWatch to monitor Beanstalk and what is important to watch.

Key Insights From Forrester Research on Containers and Microservices

In our previous post about containers and microservices, we covered the challenges of monitoring these new technologies as well as how you can use software-defined IT operations tools to overcome them. The recently released Forrester Research report, Monitoring Containerized Microservices?

Use Kubernetes to Speed Machine Learning Development

As industries shift to a microservices approach of deploying applications using containers, data scientists can reap the benefits. Data Scientists use specific frameworks and operating systems that can often conflict with the requirements of a production system. This has led to many clashes between IT and R&D departments. IT is not going to change the OS to meet the needs of a model that needs a specific framework that won’t run on RHEL 7.2.

New S3 Objects give 403 Forbidden in Cloudfront

A common problem with Amazon CloudFront and Amazon S3 hosting deals with negative TTLs. Matthew from Blue Matador outlines the steps needed to correct this problem. Understand eventual consistency in S3. New items may take time to propagate through redundant systems and be available in all locations., Understand CloudFront's default policy for handling errors, like 403 forbidden, is to cache that error for 5 minutes., The solution is to modify distribution settings in CloudFront.

Announcing k3OS: A Kubernetes Operating System

Today we launched a new open source project called k3OS. K3OS is a Linux distro built for the sole purpose of running Kubernetes clusters. In fact, it is a Linux distro and the k3s Kubernetes distro in one! As soon as you boot up a k3OS node, you have Kubernetes up and running. When you boot up multiple k3OS nodes, they form a Kubernetes cluster. K3OS is perhaps the easiest way to stand up Kubernetes clusters on any server.

Monitoring Kubernetes + Docker, part 3: Sensu + Prometheus

In part 1 of this series, we discuss the rise of Kubernetes and Docker for containerization and container orchestration. I also shared some of the challenges these new technologies present and what sources of data we use to monitor Kubernetes. Part 2 dives into collecting Kubernetes data with Prometheus, plus the pros and cons of that approach. As promised in the conclusion of that post, I’ll address those cons — showing how Sensu and Prometheus form a complementary solution.

Configuring Amazon SNS for CloudWatch Alarms

In this video Blue Matador will walk you through how to set up Amazon SNS to receive CloudWatch alarms by email or text message. Using AWS CloudWatch isn't hard, it's just tedious with an unusable UI. We are experts in AWS and Kubernetes monitoring and have built Blue Matador to make the lives of DevOps professionals easier. Learn more about our cloud monitoring solution and other CloudWatch resources at www.bluematador.com.