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What Happens When Something Goes Wrong With EKS IAM Roles
The rapid adoption of Kubernetes has led to an increase in outages covering entire company operations. Recently SourceClear experienced a Kubernetes outage which lasted two days and affected multiple teams. SourceClear is a software security company which uses data-science and machine-learning to help developers use open-source safely by analyzing the libraries
December 11, 2019
Where Did All My Pods Go?
Enterprises using Kubernetes often need to autoscale their resources based on more than just CPU usage—for example concurrent persistent connections or queue length.This post walks you through an incident where one of our customers enabled autoscaling for their application and one day all their Pods disappeared.
November 15, 2019
CoreDNS Autopath Failure For External Name Services
Datadog is a monitoring service for cloud-based workflows offering Kubernetes insights through metrics, traces, logs, dashboards, etc. They are positioned as a Cloud Native service provider. Through their SaaS-based analytics platform,
November 4, 2019
How To Break a Cassandra Cluster
Apache Cassandra is a highly scalable free and open source NoSQL database, achieving great performance on multi-node setups with no single point of failure. Cassandra supports replication across multiple data centers and offers lower latency for users and the ability to survive regional outages.
October 28, 2019
Kubernetes Jobs and the Sidecar Problem
Imagine that, you have a large computation to perform, and once the computation is done, you want Kubernetes to stop Pods automatically. Simply put, we are talking about running Pods temporarily until a Job is completed
October 25, 2019
Job being constantly recreated despite RestartPolicy: Never
Universe.com, a division within Ticketmaster, is shaping the future of the event industry using Kubernetes. They provide meaningful, real-life experiences to people around the globe through a world-class event ticketing platform.
October 22, 2019
The Case of the Infected Cluster
Today's distributed systems need to be resilient. Resilient, in short, is a way that ideally a user does not notice at all if a random failure takes place or that the user at least can continue to use the degraded application. On Monday 9 July 2018,
October 19, 2019
Debugging DNS Failure On Pods Looking Up External Resources
Docker makes building containers remarkably easy. The downside of this simplicity is that it's easy to build huge containers full of things you don't need - including security holes. By using a smaller, specialized base image such as Alpine, you can significantly minimize the attack surface.
October 14, 2019
Challenges With Running PostgreSQL On Kubernetes
Containers have become the next big thing in infrastructure software. However, for you to take full advantage of containers you need to be conversant on how to turn them into production services. This is where Kubernetes shines — as an orchestrator of your containerized applications.
October 10, 2019
The Developer Guide to Taking a Kubernetes Cluster Down
At Kalc we have a lot of experience, gained either from customers or from our time at Fortune 500 Companies, and we are concerned about all the mistakes you might make with Kubernetes. In some ways, this is motivated by the fact that we have all these new schedulers, this immutably styled infrastructure that we are all striving towards
October 8, 2019
Managing Kubernetes Clusters on AWS Using Kops
Containers are a well-established way of packaging an application. Kubernetes has also gotten out of the early-adopters phase. Today it is a widely held view that Kubernetes is a cost-effective, ready-made solution that enterprise customers can trust.
September 29, 2019
Setting Up Your EKS Cluster for Scale
Many organizations are modernizing their existing applications to become more agile and innovate faster. Architectural patterns like microservices enable teams to independently test services and continuously push applications to delivery environments.
August 30, 2019
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