jagadish2099 – Best DevOps https://www.bestdevops.com Lets Learn, Do it & Share! Thats a Best DevOps!!! Fri, 04 Feb 2022 10:12:07 +0000 en-US hourly 1 https://wordpress.org/?v=7.1.3 Replica Sets with commands https://www.bestdevops.com/replica-sets-with-commands/ Thu, 16 Sep 2021 06:59:03 +0000 https://www.bestdevops.com/?p=21506 281 kubectl create -f rc1.yaml -n=jagadish
282 kubectl get rc
283 kubectl get rc -n=jagadish
284 kubectl get pods -n=jagadish
285 kubectl get rc -n=jagadish
286 kubectl edit rc -n=jagadish
287 kubectl get rc -n=jagadish
288 vi rc1.yaml
289 kubectl apply rc -n=jagadish
290 kubectl apply -f -n=jagadish
291 vi rc1.yaml
292 kubectl apply -f rc1.yaml -n=jagadish
293 kubectl get rc -n=jagadish
294 kubectl delete rc -n=jagadish
295 kubectl delete rc jagadish
296 kubectl delete rc rajesh
297 kubectl delete rc jagadish
298 kubectl delete -f rc1.yaml -n=jagadish
299 kubectl apply -f rc1.yaml -n=jagadish
300 kubectl describe rc jagadish -n=jagadish
301 clear
302 kubectl get rc -n=jagadish
303 kubectl apply -f rc1.yaml -n=jagadish
304 kubectl delete -f rc1.yaml -n=jagadish
305 kubectl apply -f rc1.yaml -n=jagadish
306 kubectl get rc -n=jagadish
307 kubectl edi rc -n=jagadish
308 kubectl edit rc -n=jagadish
309 kubectl get rc -n=jagadish
310 kubectl apply -f rc1.yaml -n=jagadish
311 kubectl get rc -n=jagadish
312 kubectl get nodes
313 kubectl get pods -n=jagadish
314 clear
315 kubectl edit rc -n=jagadish
316 kubectl get pods -n=jagadish
317 kubectl scale -h
318 kubectl scale –replicas=1 rc/jagadish
319 kubectl scale –replicas=1 rc/jagadish -n=jagadish
320 kubectl get pods -n=jagadish
321 kubectl delete pod jagadish-6wxs7 -n=jagadish
322 kubectl get p

]]> How kubernetes works? Explain each components with Short Summary. https://www.bestdevops.com/how-kubernetes-works-explain-each-components-with-short-summary-3/ Wed, 15 Sep 2021 10:05:38 +0000 https://www.bestdevops.com/?p=21407 Kubernetes has manily two components Master and Node/Minion.

The master node controls the state of the cluster; for example, which applications are running and their corresponding container images.

Master Components:

  1. API Server
  2. ETCD – for storing data in Key Velue
  3. Controller
  4. Scheduler
  5. Kubectl
  6. Kubelet
  7. Docker
  8. The Utlitites/Softwares (5,6,7) can be installed via kubeadmin init

Node:

  1. Kubelet
  2. Docker
  3. Kubectl
  4. Kube proxy
  5. The utilites (1,2,3) can be installed via kubeadmin join

Workstation

  1. Kubectl -> Package

]]> What is Kubernetes and its features? https://www.bestdevops.com/what-is-kubernetes-and-its-features-2/ Wed, 15 Sep 2021 09:58:06 +0000 https://www.bestdevops.com/?p=21395 Kubernetes is a tool which helps in managing contrainers developed by Google.

Features:

  • It has Automated Scheduling
  • It has Self-Healing Capabilities
  • Automated rollouts & rollback
  • Automated Scaling & Load Balancing
  • Infrastructure is loosely coupled to each component can act as a separate unit
  • Application-centric management
  • Auto-scalable infrastructure
]]> List out 10 Feature of Docker-compose. https://www.bestdevops.com/list-out-10-feature-of-docker-compose-2/ Wed, 15 Sep 2021 04:53:36 +0000 https://www.bestdevops.com/?p=21339
  • Helps in building the common utility (yaml files) to describe the servicess and use it in a single command
  • YAML files are readable
  • Helps to perform operations on all the containers in a single command
  • Single host deployment
  • Quick and easy configurations
  • Highly productive – save time
    • ]]>         What is docker wait? https://www.bestdevops.com/what-is-docker-wait/ Tue, 14 Sep 2021 05:24:54 +0000 https://www.bestdevops.com/?p=21255 It Blocks the docker until one or more containers stop, then prints the respective exit codes

    docker wait js5
Ex:
Run a docker in one terminal - docker run -dit --name=js5 ubuntu bash
Run docker wait command in another terminal - docker wait js5
Stop docker in the first terminal - docker stop js5
Exit code 0 prints on the terminal 2
    ]]>         What is Docker and Container? Details explaination with Image. https://www.bestdevops.com/what-is-docker-and-container-details-explaination-with-image-2/ Mon, 13 Sep 2021 07:00:08 +0000 https://www.bestdevops.com/?p=21115
  • What is Docker?
    • Docker is a Tool/Platform which helps in managing the containers and helps save time, cost and improve the quality of the software.
  • What is Container?
    • Is a fully independent, isolated run time environment for dockers or applications.
  • Benefit of Docker?
    • Saves Time
    • Saves Cost
    • No dependencies
    • Improves the quality of the software
  • Docker Architecture
    • It will have a Docker enginer which is nothing but Docker Client, Restful service and docker server (deamon) and ContainerD to interact with Kernal
  • Container lifecycle
    • Create
    • Start
    • Stop
    • Restart
    • Pause
    • Unpause
    • Kill
    • Remove
  • How Docker Works
    • ]]>