Scripts e comandos que eu faço no vídeo sobre KinD com Kubernetes: https://www.youtube.com/watch?v=dL19dSGKZoc

1-criar-cluster-kind.sh

kind create cluster --name demo-cluster
kind get clusters
kubectl config get-contexts

10-criando-app.sh

kubectl apply -f ./9-deploy.yaml
kubectl get pods
kubectl logs deploy/api
kubectl port-forward service/api 3000:80

2-usando-kubectl.sh

kubectl get namespaces # ou kubectl get ns
kubectl get pods -n kube-system

3-remover-cluster-kind.sh

kind delete cluster --name demo-cluster

4-kind-3-nodes.yml

kind: Cluster
apiVersion: kind.x-k8s.io/v1alpha4
node:
  - role: control-plane
  - role: worker
  - role: worker
  - role: worker

5-criar-cluster-3-nos.sh

kind create cluster --name demo-cluster-3 --config ./4-kind-3-nodes.yml
kind get clusters
kubectl config get-contexts
kubectl get pods -n kube-system
kubectl get nodes

6-index.mjs

// Crie o arquivo package.json com o comando npm init -y
import {createServer} from 'node:http'

const server = createServer((r, rs) => {
  rs.writeHead(200, { 'Content-Type': 'application/json' })
  rs.end('Hello')
})

server.listen(process.env.PORT || 3000, () => console.log(`Server running on port ${process.env.PORT || 3000}`))

7-build-docker-image.sh

docker build -t hello-api .
docker images

8-kind-load-image.sh

kind load docker-image hello-api --name demo-cluster-3

9-deploy.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: api
spec:
  selector:
    matchLabels:
      app: api
  template
    metadata:
      labels:
        app: api
    spec:
      containers:
        - name: api
          image: hello-api
          imagePullPolicy: IfNotPresent
          resources:
            limits:
              memory: "128Mi"
              cpu: "500m"
          ports:
          - containerPort: 3000
---
apiVersion: v1
kind: Service
metadata:
  name: api
spec:
  selector:
    app: api
  ports:
  - port: 80
    containerPort: 3000

Dockerfile

FROM node:18-alpine
EXPOSE 3000
RUN mkdir /app
WORKDIR /app

COPY package.json index.mjs /app/

ENTRYPOINT ["node", "index.mjs"]