nagesh838 – Best DevOps https://www.bestdevops.com Lets Learn, Do it & Share! Thats a Best DevOps!!! Fri, 04 Feb 2022 10:09:12 +0000 en-US hourly 1 https://wordpress.org/?v=7.1.3 Define kubernetes ReplicaSets with Example and commands https://www.bestdevops.com/define-kubernetes-replicasets-with-example-and-commands-3/ Thu, 16 Sep 2021 06:53:43 +0000 https://www.bestdevops.com/?p=21491 kubernetes replica sets instantiate the desired number of pods.

kubectl create deployment name –image=imagename –replicas=noofreplicas -n=namespace

kubectl apply -f filename

kubectl get rs

]]> How kubernetes works? Explain each components with Short Summary https://www.bestdevops.com/how-kubernetes-works-explain-each-components-with-short-summary-6/ Wed, 15 Sep 2021 10:11:12 +0000 https://www.bestdevops.com/?p=21387 kubernetes consists of master/controlplane and worker Nodes.

Control Plane Components :

. apiserver

The API server is a component of the Kubernetes controlplane that exposes the Kubernetes API. The API server is the front end for the Kubernetes control plane.

. etcd

Consistent and highly-available key value store used as Kubernetes’ backing store for all cluster data.

. kube-scheduler

schedules pods for a node

.controller-manager

It checks continuously whether the pods are running or not.

Node Components :

. kubelet

An agent that runs on each node in the cluster. It makes sure that containers are running in a Pod

. kube-proxy

Maintains network on the node.

. Docker

Deploys containers from Registries.

]]> What is diff between docker pause/unpause and stop/kill? https://www.bestdevops.com/what-is-diff-between-docker-pause-unpause-and-stop-kill-2/ Mon, 13 Sep 2021 09:46:56 +0000 https://www.bestdevops.com/?p=21210 Docker pause : pauses all processes within one or more containers.

Docker unpause : unpauses all processes within one or more containers

Docker stop : Stop one or more running containers

Docker kill : Kill one or more running containers

]]> What is Docker and Container? Details explaination with Image! https://www.bestdevops.com/what-is-docker-and-container-details-explaination-with-image-4/ Mon, 13 Sep 2021 07:32:22 +0000 https://www.bestdevops.com/?p=21102

  • What is Docker?
    • Docker is a tool to manage containers.
  • What is Container?
    • container is an independent bundle to run applications.
  • Benefit of Docker?
    • Docker saves time and cost for launching and utilizing existing resources for running our applications .
  • Docker Architecture
    • Docker Architecture contains a
    • – client
    • – Docker Server(Deamon)
    • – ContainerD
    • – Kernal
  • Container lifecycle
    • we can create/delete/start/stop/restart/pause/un-pause/kill/remove the containers.
  • How Docker Works!!
    • When a request is made to Docker client ,it runs the image from the registries and requests kernal to attach an user/mount/network/PIDmap as a bundle to the container.
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