The CoreOS corporation was acquired by Red Hat in May 2018 for $250 million; post-acquisition, the main enterprise Container Linux distribution, combined with Red Hat’s similar Project Atomic, has been renamed Red Hat CoreOS, while its open source community has been aligned with the Fedora Project as Fedora CoreOS. Today, both teams(CoreOS & redhat) are… Read More »
Scheduling 5% Use label selectors to schedule Pods. Understand the role of DaemonSets. Understand how resource limits can affect Pod scheduling. Understand how to run multiple schedulers and how to configure Pods to use them. Manually schedule a pod without a scheduler. Display scheduler events. Know how to configure… Read More »
CPU Based Scaling With Horizontal Pod Autoscaling, Kubernetes automatically scales the number of pods in a replication controller, deployment or replica set based on observed CPU utilisation. So, now we have a hpa running for our deployment “tomcat02”. It compares the arithmetic mean of the pods’ CPU utilization with the target defined in Spec. https://blog.powerupcloud.com/autoscaling-based-on-cpu-memory-in-kubernetes-part-ii-fe2e495bddd4… Read More »
Here are some of the known best alternative of Kubernetes which incudes. Docker Swarm A swarm is a group of machines that are running Docker and joined into a cluster. After that has happened, you continue to run the Docker commands you’re used to, but now they are executed on a cluster by a swarm… Read More »
Since v1.6.0, Kubernetes has enabled the use of CRI, Container Runtime Interface, by default. The container runtime used by default is Docker, which is enabled through the built-in dockershim CRI implementation inside of the kubelet. Other CRI-based runtimes which can be Alternative of Docker in Kubernetes include: containerd (CRI plugin built into containerd) – cri… Read More »
How to setup Kubernetes Dashboard in EKS using NodePort? Step 1: Deploy the Dashboard # Deploy the Kubernetes dashboard to your cluster: # Deploy heapster to enable container cluster monitoring and performance analysis on your cluster: # Deploy the influxdb backend for heapster to your cluster: # Create the heapster cluster role binding for the… Read More »
What is Annotations in Kubernetes? There are two way using you can attach metadata to Kubernetes objects. labels annotations Kubernetes annotations is used to attach arbitrary non-identifying metadata to objects. Clients such as tools and libraries can retrieve this metadata. In contrast, annotations are not used to identify and select objects. The metadata in an… Read More »
In simple line, Amazon EKS is generally available, bringing fully-managed Kubernetes to AWS. Amazon launched Amazon EKS in November at its re:Invent 2017 conference. Till the time this article is written, Amazon EKS is available in the US East (N. Virginia) and US West (Oregon) Regions only. The cost of running EKS is $0.20 per… Read More »
Kubernetes at Public Cloud Google Container Engine – Google Kubernetes Engine is a powerful cluster manager and orchestration system for running your Docker containers. ECS – Amazon Elastic Container Service (Amazon ECS) is a highly scalable, fast, container management service that makes it easy to run, stop, and manage Docker containers on a cluster. EKS… Read More »
Error 1 – Error starting host: Error getting state for host: machine does not exist Solutions Please use/install minikube in the c drive.