Training Commands and steps

# Training
# AWS machine
mumbai region
launch instance (opt out old )
Amazon linux 2 AMI HVM kernal 5.10 SSD volume Free tier eligible 84
t2 medium 2,4
Just increase the size to 10 GB Volumen tyoe gp2
Can check the volume type pricing and add new volume
security wizard 4

# Docker kubernetes and minikube installation
[https://www.zekelabs.com/blog/how-to-install-kubernetes-cluster-on-aws-ec2-instances/](https://)

## Docker installation
yum install docker -y
systemctl enable docker && systemctl start docker
systemctl status docker
docker version
docker images
## kubernetes installation

cat <<EOF > /etc/yum.repos.d/kubernetes.repo
[kubernetes]

name=Kubernetes

baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64

enabled=1

gpgcheck=1

repo_gpgcheck=0

gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg

exclude=kube*

EOF

Exclude the `` above before execitung

cat <<EOF >  /etc/sysctl.d/k8s.conf
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
EOF

sysctl --system
setenforce 0

yum install -y kubelet kubeadm kubectl --disableexcludes=kubernetes
systemctl enable kubelet && systemctl start kubelet
## Minikube installation
[https://minikube.sigs.k8s.io/docs/start/](https://)

curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64
sudo install minikube-linux-amd64 /usr/local/bin/minikube

minikube start --driver=none
kubectl get nodes
# Docker commands
https://www.tutorialspoint.com/docker/docker_file.htm
docker container ls ##it wil show the kube containers .Kubecomponents (proxy ,scheduler etcd ,apiserver)
docker run --name mynginx1 -p 80:80 -d nginx
port forwarding to 80

##this could be done by compose file .
##check on the aws public Ip on port 80 . unsecure http.
##lets get inside the docker container and change the index.html
##check the size of teh container
docker exec -it <containerid > sh
cd /usr/share/nginx/html
##as we need and editor as its very basic image without any software .
apt-get update && apt-get install vim

# Helm installation
https://helm.sh/docs/intro/install/
From Script
`curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3`
`chmod 700 get_helm.sh`
`./get_helm.sh`
helm version
helm list
`helm repo add bitnami https://charts.bitnami.com/bitnami`
helm repo list

# ppt from fresco

# Kubernetes commands
kubectl run nginx --image=nginx
kubectl run nginx --image=nginx --dry-run=client -o yaml >>nginxDeployment.yaml
## deployment
kubectl create deployment --image=nginx nginxdeploy --dry-run=client
kubectl scale deployment nginx --replicas=4
## service
kubectl expose pods redis --port=6397 --name redis-service --dry-run=client -o yaml >redisSvc
kubectl create service clusterIP redis --tcp=6397:6397
kubectl expose pod nginx --type=NodePOrt --port=80 --name=nginxService
kubectl expose deployment ngDeploy --type=NodePort --port 80 --name=nginxService
kubectl explain pods --recursive |less

# Helm commands and deployment
helm search repo
helm add bitnami http://
helm search repo |grep -i mysql
helm install stable/mysql --genrate-name

https://www.katacoda.com/mjboxboat/courses/kubernetes-fundamentals-2/04-helm

## Helm commands for revision and upgrade
https://getbetterdevops.io/helm-quickstart-tutorial/

310 helm create nginx
311 ls
312 ll
313 date
314 tree nginx
315 yum install tree
316 tree nginx
317 cd tree
318 cd nginx/
319 ll
320 cat values.yaml
321 helm lint nginx '
322 helm lint nginx
323 cd ..
324 helm lint nginx
325 helm install --debug --dry-run nginx nginx
326 helm install nginx nginx
327 kubectl get all
328 cd nginx/
329 ll
330 vi values.yaml
331 helm upgrade nginx nginx --set image.tag=1.21.6
332 cd ..
333 helm upgrade nginx nginx --set image.tag=1.21.6
334 kubectl get pod -l app.kubernetes.io/name=nginx -o jsonpath='{.items[0].spec.containers[0].image}'
335 helm history nginx
336 cd nginx/
337 ll
338 cat values.yaml |grep -i replica
339 helm upgrade nginx nginx --set replicaCount=2
340 cd ..
341 helm upgrade nginx nginx --set replicaCount=2
342 helm history nginx
343 kubectl get all
344 helm diff revision nginx 1 2
345 helm diff --help
346 helm --help
347 helm history nginx
348 helm diff nginx 1 2
349 helm rollback nginx 2
350 kubectl get all
351 helm history nginx
352 $ kubectl get pod -l app.kubernetes.io/name=nginx -o jsonpath='{.items[0].spec.containers[0].image}'
353 $ kubectl get pod -l app.kubernetes.io/name=nginx -o jsonpath='{.items[0].spec.containers[0].image}
354 $ kubectl get pod -l app.kubernetes.io/name=nginx -o jsonpath='{.items[0].spec.containers[0].image}'
355 kubectl get pod -l app.kubernetes.io/name=nginx -o jsonpath='{.items[0].spec.containers[0].image}'
356 helm uninstall nginx
357 ls

Jenkin installation in AWS
https://www.jenkins.io/doc/tutorials/tutorial-for-installing-jenkins-on-AWS/