#!/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 ""

echo "###################################"
echo "Creating the VPC network and subnet"
echo "###################################"
gcloud compute networks create $KUBE_NETWORK --subnet-mode custom
gcloud compute networks subnets create $KUBE_SUBNET --network $KUBE_NETWORK --range $KUBE_SUBNET_CIDR

gcloud compute firewall-rules create $KUBE_INT_FW_NAME --allow tcp,udp,icmp --network $KUBE_NETWORK --source-ranges $KUBE_SUBNET_CIDR,$KUBE_POD_CIDR
gcloud compute firewall-rules create $KUBE_EXT_FW_NAME --allow tcp:22,tcp:6443,icmp --network $KUBE_NETWORK --source-ranges 0.0.0.0/0
gcloud compute firewall-rules list --filter=”network:$KUBE_NETWORK”

echo "Firewall rules have hopefully been created"
echo ""

echo "################################################"
echo "Creating the static public IP address for the LB"
echo "################################################"
gcloud compute addresses create $KUBE_NETWORK --region $GCE_REGION
gcloud compute addresses list --filter="name=('$KUBE_NETWORK')"

echo "Public IP address created"
echo ""

echo "##############################"
echo "Creating the compute instances"
echo "##############################"
KUBE_CONTROLLERS=$((KUBE_CONTROLLERS-1))
for ((i=0; i<=$KUBE_CONTROLLERS; i++)); do
  echo "Creating controller-${i}"
  gcloud compute instances create controller-${i} --async --boot-disk-size 200GB --can-ip-forward --image-family centos-7 --image-project centos-cloud --machine-type g1-small --private-network-ip $KUBE_SUBNET_ADDR.1${i} --scopes compute-rw,storage-ro,service-management,service-control,logging-write,monitoring --subnet $KUBE_SUBNET --tags kubernetes,controller
done

KUBE_WORKERS=$((KUBE_WORKERS-1))
for ((i=0; i<=$KUBE_WORKERS; i++)); do
  echo "Creating worker-${i}"
  gcloud compute instances create worker-${i} --async --boot-disk-size 200GB --can-ip-forward --image-family centos-7 --image-project centos-cloud --machine-type g1-small --metadata pod-cidr=$KUBE_POD_ADDR.${i}.0/24 --private-network-ip $KUBE_SUBNET_ADDR.2${i} --scopes compute-rw,storage-ro,service-management,service-control,logging-write,monitoring --subnet $KUBE_SUBNET --tags kubernetes,worker
done

gcloud compute instances list
echo "Hopefully all compute instances have been created"
echo ""
sleep 20

for ((i=0; i<=$KUBE_CONTROLLERS; i++)); do
 gcloud compute ssh controller-${i} -- 'sudo yum update -y'
done
for ((i=0; i<=$KUBE_WORKERS; i++)); do
 gcloud compute ssh worker-${i} -- 'sudo yum update -y'
done