vitortolentino / kubernetes-golang

Kubernetes studies using golang as server

This project intends to save my kubernetes studies using a very simple server in Golang to simulate a real application

Preparing the environment

• We need Docker installed.
• We're using Kind to run Kubernetes Clusters locally. So you need to install it.
• In addition we also need to install Kubectl as our Kubernetes command-line tool

Setting up our cluster

kind create cluster --config=k8s/kind.yaml --name=fullcycle

Running an isolated pod

kubectl apply -f k8s/pod.yaml

Verify if the pod is up

kubectl get pods

Right now we don't have any motor running to forward the pod's inner port, so we need to do this manually

kubectl port-forward pod/goserver 80:80

Now we can access: localhost:80

Running our replicaset

kubectl apply -f k8s/replicaset.yaml

Verify if the replicaset is up

kubectl get replicasets

Running our deployment

kubectl apply -f k8s/deployment.yaml

Verify if the deployment is up

kubectl get deployments

Running the service

kubectl apply -f k8s/service.yaml

Verify if the service is up

kubectl get services

The service will act as a Loadbalancer and distribute the request across the pods. But like in pods, we need to forward the port manually

kubectl port-forward svc/goserver-service 8000:80

Now we can access: localhost:8000