#!/bin/bash
##
## Script to automate the Kubernetes CentOS client side pieces
##
. .gce_kubernetes.config
echo "######################################"
echo "Set the gcloud compute region and zone"
echo "######################################"
gcloud config set compute/region $GCE_REGION
gcloud config set compute/zone $GCE_ZONE
gcloud config set project $GCE_PROJECT
echo "Compute region and zone set"
echo ""

KUBE_CONTROLLERS=$((KUBE_CONTROLLERS-1))
KUBERNETES_PUBLIC_ADDRESS=$(gcloud compute addresses describe $KUBE_NETWORK --region $GCE_REGION --format 'value(address)')

for (( i=0; i<=$KUBE_CONTROLLERS; i++ )); do
  if [ "$i" == "0" ]; then
    printf 'controller-'${i} > instance
  else
    printf ',controller-'${i} >> instance
  fi
done
INSTANCES=`cat instance`

gcloud compute http-health-checks create $KUBE_NETWORK --description "Kubernetes Health Check" --host "kubernetes.default.svc.cluster.local" --request-path "/healthz"
gcloud compute firewall-rules create $KUBE_NETWORK-allow-health-check --network $KUBE_NETWORK --source-ranges 209.85.152.0/22,209.85.204.0/22,35.191.0.0/16 --allow tcp
gcloud compute target-pools create $KUBE_NETWORK-target-pool --http-health-check $KUBE_NETWORK
gcloud compute target-pools add-instances kubernetes-target-pool --instances $INSTANCES
gcloud compute forwarding-rules create $KUBE_NETWORK-forwarding-rule --address ${KUBERNETES_PUBLIC_ADDRESS} --ports 6443 --region $GCE_REGION --target-pool $KUBE_NETWORK-target-pool

echo 'Verifying this has worked:'
cd certs-dir
curl --cacert ca.pem https://${KUBERNETES_PUBLIC_ADDRESS}:6443/version

echo 'The next step is to configure the worker nodes'