Getting start cert manager with ingress nginx tutorial

getting_start_cert_manager_with_ingress_nginx.sh

#! /bin/bash

curl -s https://gist.githubusercontent.com/juunini/a30a6aad37d6e0b1c51c2418bf1664a3/raw/40fe0cdae6b5dd6ac6fd8e496dbf464f2b25d044/color.sh -o color.sh
source color.sh
rm color.sh

DOMAIN=kuard.test.tlqkf.wtf
EMAIL=juuni.kim@cloudmt.co.kr

echo -ne "Insert hostname [$RED$DOMAIN$COLOR_RESET] " && read _DOMAIN
echo -ne "Insert email [$RED$EMAIL$COLOR_RESET] " && read _EMAIL

DOMAIN=${_DOMAIN:-$DOMAIN}
EMAIL=${_EMAIL:-$EMAIL}

curl -s https://gist.githubusercontent.com/juunini/91ce1b4062d102a0cbc42a49bc34fb51/raw/f193dbf4368f0a1db19545fcf2bffb2b173fc34e/loading.sh -o loading.sh
source loading.sh
rm loading.sh

i=0

loadingAnimation() {
  loading $i

  (( i += 1 ))
  sleep 1
}

################################################

# ingress-nginx
kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v1.5.1/deploy/static/provider/cloud/deploy.yaml

printf "\nwaiting ingress-nginx external IP... "

while :
do
  INGRESS_NGINX=$(kubectl get service -n ingress-nginx)

  if [[ $INGRESS_NGINX == *"pending"* ]]; then
    loadingAnimation
    continue
  fi

  printf " \n\n\n"
  kubectl get service -n ingress-nginx
  break
done

printf "\n\nwaiting ingress-nginx deployments... "

while :
do
  DEPLOYMENT_INGRESS_NGINX=$(kubectl get deployments -n ingress-nginx)

  if [[ $DEPLOYMENT_INGRESS_NGINX == *"0/1"* ]]; then
    loadingAnimation
    continue
  fi

  printf " \n\n\n"
  break
done

printf "\nRegister your domain upper EXTERNAL-IP.\nIf you done, press enter"
read IS_REGISTERED

# kuard
kubectl apply -f https://raw.githubusercontent.com/cert-manager/website/master/content/docs/tutorials/acme/example/deployment.yaml
kubectl apply -f https://raw.githubusercontent.com/cert-manager/website/master/content/docs/tutorials/acme/example/service.yaml

# cert-manager
kubectl apply -f https://github.com/cert-manager/cert-manager/releases/download/v1.11.0/cert-manager.yaml

printf "\nwaiting cert-manager... "

while :
do
  CERT_MANAGER=$(kubectl get deployments -n cert-manager)

  if [[ $CERT_MANAGER == *"0/1"* ]]; then
    loadingAnimation
    continue
  fi

  printf " \n\n\n"
  break
done

# Let's Encrypt TLS certificate
curl https://raw.githubusercontent.com/cert-manager/website/master/content/docs/tutorials/acme/example/production-issuer.yaml | sed "s/user@example.com/$EMAIL/g" | kubectl create -f -

# add kuard on ingress-nginx
curl https://raw.githubusercontent.com/cert-manager/website/master/content/docs/tutorials/acme/example/ingress-tls-final.yaml | sed "s/example.example.com/$DOMAIN/g" | kubectl create -f -

printf "\nwaiting TLS finish... "
sleep 3s

while :
do
  CHECK_TLS=$(kubectl describe secret quickstart-example-tls)

  if [[ $CHECK_TLS == *"tls.key"* && $CHECK_TLS == *"tls.crt"* ]]; then
    printf " \n\nfinished \n"
    break
  fi

  loadingAnimation
done