k8s-workshop

1. kubectl run nginx-pod --image=nginx:alpine

2. kubectl run messaging --image=redis:alpine --labels=tier=msg

3. kubectl create namespace apx-x998-ishay

4. kubectl get node -o json > /tmp/nodes-ishay.json

5. kubectl expose pod messaging --port=6379 --name=messaging-service

6. kubectl create service clusterip messaging-service --tcp=6379 --dry-run=client -o yaml > messaging-service.yaml

7. kubectl create deployment hr-web-app --image odekloud/webapp-color --replicas 2

8. kubectl run static-busybox --image=busybox -o yaml --command -- sleep 1000 --dry-run=client > /etc/kubernetes/manifests/static-busybox.yaml

9. kubectl create ns finance-ishay

   kubectl -n finance-ishay run temp-bus --image redis:alpine

10. Stored as pv-analytics.yaml

11. Stored as redis-storage-ishay.yaml

12. ??

13. Using nginx-deploy.yaml

kubectl create -f nginx-deploy.yaml --record

kubectl set image deploy nginx-deploy nginx=nginx:1.17 --record

kubectl rollout history deploy nginx-deploy

15.

Pod design

1. kubectl get pods --show-labels

2. kubectl run nginx-dev1 --image nginx --labels=env=dev

   kubectl run nginx-dev2 --image nginx --labels=env=dev

   kubectl run nginx-dev3 --image nginx --labels=env=dev

   kubectl run nginx-prod1 —-image nginx --labels=env=prod

   kubectl run nginx-prod2 —-image nginx --labels=env=prod

3. kubectl get pod —-show-labels

4. kubectl get pod -l env=dev

5. kubectl get pods -l env=dev --show-labels

6. kubectl get pod -l env=prod

7. kubectl get pod -l env=prod —show-labels

8. kubectl get pod -L env

9. kubectl get pod -l 'env in (dev,prod)'

10. kubectl get pod -l 'env in (dev,prod)' --show-labels

11. kubectl label pod/nginx-dev1 env=uat --overwrite

    kubectl get pod —show-labels

12. kubectl label pod nginx-dev{1..3} env-

    kubectl label pod nginx-prod{1..2} env-

    kubectl get pod --show-labels

13. kubectl label pod nginx-dev{1..3} app=nginx

    kubectl label pod nginx-prod{1..2} app=nginx

    kubectl get po --show-labels

14. kubectl get nodes --show-labels

15. kubectl label node worker nodeName=nginx-node

16. kubectl create -f pod-nginx.yaml

17. kubectl describe po nginx | grep Node-Selector

18. kubectl describe po nginx | grep Labels

Deployment

1. kubectl create -f webapp.yaml

2. kubectl rollout status deployment webapp

3. kubectl get rs -l app=webapp

4. kubectl get rs -l app=webapp -o yaml > webapp-rs.yaml

   kubectl get pods -l app=webapp -o yaml > webapp-pods.yaml

5. kubectl delete deployment webapp

6. kubectl create -f webapp2.yaml

7. kubectl set image deployment webapp nginx=nginx:1.17.4

   kubectl describe deployment webapp | grep -i image

8. kubectl rollout history deployment webapp

9. kubectl rollout undo deployment webapp

   kubectl describe deployment webapp | grep -i image

10. kubectl set image deployment webapp nginx=nginx:1.100

    kubectl rollout status deployment webapp

    kubectl rollout undo deployment webapp

    kubectl rollout status deployment webapp

11. kubectl autoscale deployment webapp --min=10 --max=20 --cpu-percent=85

    kubectl get hpa

    kubectl get pod -l app=webapp

12. kubectl delete deployment webapp

    kubectl delete hpa webapp

configMap

1. Created config.txt

2. kubectl create cm keyvalcfgmap --from-file=config.txt

   kubectl get cm keyvalcfgmap -o yaml > keyvalcfgmap.yaml

3. kubectl create -f secret-pod.yaml

   kubectl exec -it nginx -- env

   kubectl delete pod nginx

   kubectl delete cm keyvalcfgmap