When administering your Kubernetes cluster, you will likely run into a situation where you need to delete pods from one of your nodes. You may need to debug issues with the node itself, upgrade the node, or simply scale down your cluster. Deleting pods from a node is not very difficult, however there are specific steps you should take to minimize disruption for your application.
Amazon SQS is a message queuing service that allows you to send and receive huge numbers of messages from a queue using a simple API. Using Amazon SQS, without setting up any infrastructure, you can have a distributed and fault tolerant queuing system. Since SQS is 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.
If you’re using AWS Kinesis in your application, you’ll want to monitor your Kinesis streams to make sure they are healthy and that your producers and consumers are interacting with them correctly. CloudWatch exposes many metrics that can help you determine the health of your Kinesis streams, but it can be a pain to set up. In this post, we’ll discuss the metrics that are most helpful, how to get CloudWatch up and monitoring your Kinesis streams, plus an easier alternative.
A lot of engineers think a project is done once the code is live. In a perfect world, that could be true—alas, commits are rarely free of problems. For companies that have a lot of focus on dev but little on ops, this can quickly turn into a nightmare. Fortunately, there are a lot of infrastructure monitoring tools out there that can help marry DevOps and keep your apps, websites, and processes running smoothly.
Have you noticed recently that your AWS Lambda invocation requests are getting throttled? If so, your Lambda functions are probably not running as designed. Let’s examine the possible causes and solutions to poor Lambda performance.
Amazon Web Services (AWS) is pretty much ubiquitous these days, with everyone from tiny startups to large enterprises using the cloud service to run their apps, websites, and processes. For small businesses, being able to predict your budgets is paramount. Unfortunately, AWS costs can be very difficult to forecast. In this blog, we’ll go over the pros and cons of the tools available to help you estimate your AWS costs.
Inodes, speculated to be short for “index nodes,” have been around since the introduction of the first UNIX file system around the late 1970s. They were adopted into Linux in the 90s—and for good reason. They’re an excellent way to keep track of how your files are stored, and the method many systems are still based on today.
Amazon’s EKS service (Elastic Container Service for Kubernetes) allows you to create a Kubernetes control plane in your AWS account without having to configure Kubernetes master nodes, etcd, or the api servers. In this blog post we will cover the motivation for using EKS, the preparation required to create an EKS cluster, how to configure EKS in Terraform, and how to set up kube2iam with EKS.
One highly requested feature of AWS’s Application Load Balancer is the ability to assign static IP addresses. Unfortunately, ALBs do not support this feature and it is unlikely they will in the near future. Today, the only way to achieve static IP addresses for your application behind an ALB is to add another layer in between the client and your ALB which does have a static IP address, and then forward requests to your ALB.
Deploying Docker images to Kubernetes is a great way to run your application in an easily scalable way. Getting started with your first Kubernetes deployment can be a little daunting if you are new to Docker and Kubernetes, but with a little bit of preparation, your application will be running in no time. In this blog post, we will cover the basic steps needed to build Docker images and deploy them to a Kubernetes cluster.
