k8s-fundamentals

• Full cycle live -> https://www.youtube.com/watch?v=oxWEVQP5_Rg

Pod

Menor unidade, agrupamento de containers que compartilham do mesmo namespace (do kernel), por exemplo, endereçamento de rede.

Tools

• kind
• kubectl

Create cluster with kind

kind create cluster --name=esquenta

kubectl cluster-info --context kind-esquenta

kubectl get nodes

Create Pod

kubectl apply -f pod.yaml

kubectl get pods

kubectl port-forward pod/nginx-demo 9090:80

Create ReplicaSet

kubectl apply -f replicaset.yaml

Create Deployment

kubectl apply -f deployment.yaml

Docker basics

• Stop all processes from running containers with

- docker stop $(docker ps -a -q)

• Remove stopped containers.

docker rm $(docker ps -a -q)

docker rm -f some-control-plane

• Remove images

docker rmi $(docker images -q)

k8s

kubectl config delete-cluster kind-sibops
kubectl config delete-context kind-sibops

kind create cluster --config kind-cluster.yaml --name sibops