Kubernetes

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Kubernetes (commonly stylized as K8s[3]) is an open-source Container-Orchestration system for automating deployment, autoscaling (based on CPU, memory[1] or custom metrics[2]) and management of containerized applications.[4] It works with a range of container tools, including Docker.

Kubernetes objects, concepts or subsystems:


Installation

Microk8s

MicroK8s single node Kubernetes solution available since December 2018[3]

  • Installation:
    • snap install microk8s
    • snap install microk8s --classic

minikube

brew cask install minikube[4]

Kubernetes Log files [5]

Master

  • /var/log/kube-apiserver.log - API Server, responsible for serving the API
  • /var/log/kube-scheduler.log - Scheduler, responsible for making scheduling decisions
  • /var/log/kube-controller-manager.log - Controller that manages replication controllers
  • etcd

Worker Nodes

  • /var/log/kubelet.log - Kubelet, responsible for running containers on the node
  • /var/log/kube-proxy.log - Kube Proxy, responsible for service load balancing

Kubernetes Ports

Activities

Kubernetes Cloud Service Providers

Kubernetes is offered as a service on multiple Cloud computing#Public cloud|public clouds, including Amazon Web Services (EKS)[7] (since June 2018 in the US East (N. Virginia) and US West (Oregon) Regions), Microsoft Azure (AKS) since october 2017,[8] DigitalOcean[9] (since May 2018),[10][11] Google Kubernetes Engine (GKE) in Google Cloud Platform[12] (at least since November 2014),[13] IBM Cloud [14], Alibaba Cloud [15], Mail.Ru Cloud Solutions (since May 2018)[16] and Oracle Kubernetes Service. For a more comprehensive list you can check https://kubernetes.io/docs/setup/pick-right-solution/#hosted-solutions. Most of them if not all requires a valid credit card.

Kubernetes Timeline

See also

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Source: https://en.wikiversity.org/wiki/DevOps/Kubernetes

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