Kubernetes Dojo

1. Documentação de apoio

   • https://kubernetes.io/docs/home/

2. Curso Introduction to Kubernetes

   • https://kubernetes.io/training/

Instalação Local Básica

1. Instalar Kubernetes

   • Docker Desktop -> Kubernetes e ativar (Enable Kubernetes)

2. Instalar Kubectl

   • https://kubernetes.io/docs/tasks/tools/

Instalação Local Avançada

1. Instalar Krew

   • https://krew.sigs.k8s.io/docs/user-guide/setup/install

2. Instalar Kubectx e Kubens

   • kubectl krew install ctx
   • kubectl krew install ns

Comandos Úteis

1. Aplica um yaml

kubectl apply -f {arquivo.yml}

2. Remover os recursos de um yaml

kubectl delete -f {arquivo.yml}

3. Listar recursos

kubectl get pods
kubectl get namespaces
kubectl get services
kubectl get cronjobs

4. Visualizar um recurso

kubectl describe pod {name}
kubectl describe namespace {name}
kubectl describe service {name}
kubectl describe namespace {name}

5. Ver os logs de um pod

kubectl logs {podname}[-c {containername}]

6. Ver o uso de recursos dos pods/containers (precisa ter o metrics server instalado)

kubectl top pods
kubectl top pods --containers

7. Port Forward

kubectl port-forward pods/{name} {LOCAL_PORT}:{CLUSTER_PORT}
kubectl port-forward deployment/{name} {LOCAL_PORT}:{CLUSTER_PORT}
kubectl port-forward service/{name} {LOCAL_PORT}:{CLUSTER_PORT}