runCDN

#!/usr/bin/env bash
DNS_SERVER=proj4-dns.5700.network
DNS_DIR='dns_server'
HTTP_REPLICAS=(proj4-repl1.5700.network
               proj4-repl2.5700.network
               proj4-repl3.5700.network
               proj4-repl4.5700.network
               proj4-repl5.5700.network
               proj4-repl6.5700.network
               proj4-repl7.5700.network)
HTTP_DIR='http_server'

while getopts p:o:n:u:i: flag
do
    case "${flag}" in
        p) port=${OPTARG};;
        o) origin=${OPTARG};;
        n) name=${OPTARG};;
        u) username=${OPTARG};;
        i) keyfile=${OPTARG};;
    esac
done

# run each CDN replica
echo "Setting up CDN replicas..."
for replica in "${HTTP_REPLICAS[@]}"
do
	echo "Attempting to run replica: $username@$replica..."
	ssh -i $keyfile $username@$replica "cd $HTTP_DIR; nohup ./httpserver -p $port -o $origin &>logs.txt" &
	echo "Replica running at: $username@$replica"
done
echo "All replicas running!"

# run DNS server
echo "Attempting to run DNS Server..."
ssh -i $keyfile $username@$DNS_SERVER "cd $DNS_DIR; nohup ./dnsserver -p $port -n $name &>logs.txt" &
echo "DNS server is running!"