miloofcroton/simple-go

simple cloud native go application

simple-go

starting the server locally

build

docker build -t miloofcroton/simple-go:1.0.1 .

or

GOOS=linux GOARCH=amd64 go build
docker build -t miloofcroton/simple-go:1.0.2 -f Dockerfile-v2 .

or

docker-compose build

push

(not necessary with docker-compose)

docker push miloofcroton/simple-go:1.0.2

run

(replace 9090 with any port number)

docker run \
    -it \
    -e "PORT=9090" \
    -p 9090:9090 \
    simple-go:1.0.1

or

docker-compose up

the k8s way, locally

start k8s

minikube start

start an object

note: make sure you have your docker images built and pushed to docker hub

kubectl create -f cluster/app-pod.yml

kubectl create -f cluster/app-pod.yml --namespace simple-go

kubectl create -f cluster/app-namespace.yml

kubectl apply -f cluster

forward a port

kubectl port-forward simple-go-pod 8080:8080

check objects

kubectl get pods

kubectl get pods -w

kubectl get pods,deployments,ns

kubectl get pods --show-labels

kubectl get pods -o wide -L env

kubectl get pods --namespace simple-go

add label

kubectl label pod simple-go-pod hello=world

kubectl label pod simple-go-pod env=prod --overwrite

remove an object

kubectl delete -f cluster/app-pod.yml

kubectl delete pod simple-go-pod

kubectl delete -f cluster/app-namespace.yml

kubectl delete -f cluster

scale

kubectl scale deployment simple-go --replicas=5

check history

kubectl rollout history deployment simple-go

update images

kubectl set image deployment simple-go simple-go=miloofcroton/simple-go:1.0.4

undo image update

kubectl rollout undo deployment simple-go