Let’s continue our series on cost optimization in AWS. Previous posts: AWS: cost optimization – purchasing RDS Reserved Instances AWS: Cost Explorer – costs checking on the CloudWatch Logs example AWS: Cost optimization – services expenses overview and traffic costs in AWS Now that we understand what we pay for in AWS, let’s see what… Read More »
We have an API service with Gunicorn in Kubernetes that periodically returns 502, 503, 504 errors. I started debugging it, and found a weird thing: there were no messages in the logs about the received SIGTERM, so I first went to deal with Kubernetes – why doesn’t it send it? The Issue So, here’s… Read More »
In Kubernetes, in addition to metrics and logs from containers, we can get information about the operation of components using Kubernetes Events. Events usually store information about the status of Pods (creation, evict, kill, ready or not-ready status of pods), WorkerNodes (status of servers), Kubernetes Scheduler (inability to start a pod, etc.). Kubernetes Events… Read More »
We have an AWS EKS cluster with WorkerNodes/EC2 created with Karpenter. The process of creating the infrastructure, cluster, and launching Karpenter is described in previous posts: Terraform: Building EKS, part 1 – VPC, Subnets and Endpoints Terraform: Building EKS, part 2 – an EKS cluster, WorkerNodes, and IAM Terraform: Building EKS, part 3 –… Read More »
I’ve already written a little about Pritunl before – Pritunl: Running a VPN in Kubernetes. Let’s return to this topic again, but this time on EC2 in AWS, without Kubernetes. So, what we need to do is to run some kind of VPN service for the project to have access to Kubernetes APIs/Kubernetes WorkerNodes/AWS… Read More »