FEEDBACK – https://www.rajeshkumar.xyz/feedback/

SLIDES – https://devopsschool.com/slides/

Day 1 – Docker

Lab Machine:
https://docs.google.com/forms/d/1312zjI9dWITAobCg6N6ozg5p8myaBmlWxiDo3ZDnaDM/viewform

Lab – 1
https://www.devopsschool.com/blog/lifecycle-of-docker-containers/

Slides –
https://devopsschool.com/slides/docker/index.html

Docker Lab Access

https://github.com/devopsschool-training-notes/Master-in-Devops-Engineering-MDE/tree/master/key

PUTTY Tutorials

https://www.devopsschool.com/blog/how-to-login-to-linux-server-using-putty/

How to install Docker?

Docker Tutorials: How to Install Docker in Ubuntu?

Day 1 – Assigment –

https://www.devopsschool.com/forum/d/340-what-is-docker-and-containers

Day 2 – Docker

Lab – 2. – https://www.devopsschool.com/blog/docker-lab-excercise-assignment-2/

Concept of PID1 – https://www.devopsschool.com/blog/understanding-pid-1-physical-servers-virtual-machines-and-containers/

Lab 3 – https://www.devopsschool.com/blog/docker-lab-excercise-assignment-3-docker-volume/

Docker Tutorials: command Line Complete Referenece. – https://www.devopsschool.com/blog/the-docker-command-line-complete-referenece/

Lab 4 – https://www.devopsschool.com/blog/dockerfile-lab-exercise-1/

Day 2 Assignment –

• https://www.devopsschool.com/forum/d/351-docker-exec-vs-attach-and-docker-wait-vs-docker-update

• https://www.devopsschool.com/forum/d/355-questions-to-be-answered-on-docker-images

Day 3

Lab 1 – https://www.devopsschool.com/blog/docker-lab-excercise-assignment-4-docker-networking/

Lab 2 – Docker Volume – https://www.devopsschool.com/blog/docker-lab-excercise-assignment-7/

Assignment 1 – Docker networking – https://www.devopsschool.com/forum/d/370-docker-networking-questions

Assigment 2 – Kubernetes – https://www.devopsschool.com/forum/d/371-kubernetes-questions

Kubernetes Components – https://www.devopsschool.com/blog/details-kubernetes-components-in-master-worker/

Day 4

How to setup Kubernetes cluster in ubuntu 20
https://www.devopsschool.com/blog/kubernetes-1-23-6-cluster-setup-master-and-worker-in-ubuntu-20-04/

Master - 65.2.171.73 [ become a root ]
Worker - 43.205.99.83

more ~/.kube/config
kubectl
kubectl cluster-info
kubectl get nodes
kubectl get pods --all-namespaces
kubectl version
kubectl config view
kubectl api-resources
kubectl get ns
kubectl get pods -n=kube-system


POD				=== VM
ReplicationController		=== ASG
Deployment			=== ASG+++
Service				=== Net LB
Code language: JavaScript (javascript)

LAB 1 – Working with kubernetes namespaces

---

apiVersion: v1
kind: Pod
metadata:
  name: rajesh
  labels:
    app: helloworld
spec:
  containers:
  - name: devopsschool1
    image: scmgalaxy/nginx-devopsschoolv1
    ports:
    - name: nginx-port
      containerPort: 80


  107  vi pod.yaml
  108  clear
  109  ls
  110  kubectl create -f pod.yaml
  111  kubectl get pods
  112  kubectl describe pod rajesh
  113  clear
  114  kubectl describe pod rajesh
  115  clear
  116  kubectl get pods
  117  vi pod.yaml
  118  kubectl apply -f pod.yaml
  119  kubectl describe pod rajesh
  120  clear
  121  ls
  122  kubectl get pods
  123  kubectl get pods -o iwde
  124  kubectl get pods -o wide
  125  kubectl delete -f pod.yaml
  126  kubectl get pods

============================================================
How to use container?
--------------------------------
exex
attach
-p
logs
cp
----------------------------

Troubleshooting and Debugging Commands:

  exec            Execute a command in a container
  attach          Attach to a running container
  logs            Print the logs for a container in a pod
  describe        Show details of a specific resource or group of resources
  cp              Copy files and directories to and from containers
  auth            Inspect authorization

  port-forward    Forward one or more local ports to a pod


 131  kubectl get pods
  132  kubectl apply -f pod.yaml
  133  kubectl get pods
  134  kubectl exec rajesh ls
  135  kubectl exec -it rajesh /bin/bash
  136  clear
  137  ls
  138  kubectl
  139  clear
  140  kubectl exec -h
  141  cler
  142  clear
  143  s
  144  kubectl attach rajesh
  145  kubectl logs rajesh
  146  clear
  147  ls
  148  kubectl exec rajesh ls /opt
  149  kubectl cp pod.yaml rajesh:/opt
  150  kubectl exec rajesh ls /opt
  151  kubectl auth create pod
  152  kubectl auth -h
  153  kubectl auth can-n create pod
  154  kubectl auth can-i create pod
 154  kubectl auth can-i create pod
  155  kubectl auth can-i delete pod
  156  history
  157  kubectl attach rajeshclear
  158  clear
  159  kubectl get pods -o wide
  160  kubectl port-forward -h
  161  clear
  162  kubectl port-forward --address 0.0.0.0 pod/rajesh 8888:80
Code language: JavaScript (javascript)

---

Replication - 1 POD many
Controller  - 5 === 5


apiVersion: v1
kind: ReplicationController
metadata:
  name: rajrc
spec:
  replicas: 5
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: scmgalaxy/nginx-devopsschoolv1

 166  vi rc.yaml
  167  kubectl create -f rc.yaml
  168  kubectl get rc
  169  kubectl get pods
  170  clear
  171  kubectl edit rc rajrc
  172  kubectl get rc
  173  kubectl get pods
  174  clear
  175  kubectl edit rc rajrc
  176  clear
  177  kubectl get pods
  178  clear
  179  ls
  180  kubectl get pods
  181  kubectl edit rc rajrc
  182  kubectl get pods
  183  clear
  184  kubectl get pods
  185  clear
  186  kubectl get pods
  187  celar
  188  kubectl get pods
  189  clear
  190  kubectl get pods
  191  clear
  192  kubectl get pods
  193  clear
  194  kubectl get pods
  195  kubectl delete pod rajrc-55fsq rajrc-czm6n
  196  kubectl get pods
  197  kubectl get rc
  198  kubectl delete rc rajrc
  199  kubectl get rc
  200  kubectl get pods
Code language: JavaScript (javascript)

---

Lab – Kubernetes Deployment

Day 5

Service

kubectl create deployment backend --image=scmgalaxy/nginx-devopsschoolv2 --replicas=10
kubectl expose deploy/backend --port=8080 --target-port=80 --name=backend

kubectl create deployment frontend --image=scmgalaxy/nginx-devopsschoolv1 --replicas=10
kubectl expose deploy/frontend --port=8080 --target-port=80 --name=frontend --type=NodePort
kubectl expose deploy/frontend --port=8080 --target-port=80 --name=lb --type=LoadBalancer

https://www.devopsschool.com/blog/kubernetes-service-example-programs/

https://www.devopsschool.com/blog/kubernetes-tutorials-pod-load-balancing-using-service/

How to Access Openshift?


### GUI

https://console-openshift-console.apps.smcohia1q443b84fbf.centralindia.aroapp.io/
kubeadmin
Uft6X-iemZz-wIn6i-JNHTz

### OC & kubectl
Step 1 - Install OC
<blockquote class="wp-embedded-content" data-secret="pLjySUNkba"><a href="https://www.devopsschool.com/blog/openshift-how-to-install-openshift-cli-oc/">OpenShift: How to Install OpenShift CLI oc</a></blockquote><iframe class="wp-embedded-content" sandbox="allow-scripts" security="restricted" style="position: absolute; visibility: hidden;" title="“OpenShift: How to Install OpenShift CLI oc” — DevOpsSchool.com" src="https://www.devopsschool.com/blog/openshift-how-to-install-openshift-cli-oc/embed/#?secret=jWV619VHBV#?secret=pLjySUNkba" data-secret="pLjySUNkba" width="600" height="338" frameborder="0" marginwidth="0" marginheight="0" scrolling="no"></iframe>

https://github.com/okd-project/okd/releases/download/4.20.0-okd-scos.ec.6/openshift-client-windows-4.20.0-okd-scos.ec.6.zip

Step 2 - 
oc login --token=sha256~3aP6Ceetl8ZIXHH7fjbAigf5uq89HtDIyq5vNyT1j5k --server=https://api.smcohia1q443b84fbf.centralindia.aroapp.io:6443Code language: HTML, XML (xml)

OPENSHIFTT LAB – https://www.devopsschool.com/blog/openshift-local-crc-basic-learning-workflow/

WRAP UP

Certification Process -
		Check email ---> Invite -> Fill --> Certificate pdf 
https://www.devopsschool.com/certificates/

Mandatory POST Test -   https://forms.office.com/r/nKvcdtzvmZ

Feedback: https://forms.office.com/r/nnBTAWfSjQ

Helping Rajesh - https://g.page/r/CRYkxTMGVPIMEAE/review
Code language: JavaScript (javascript)