interfaces.sh

#!/bin/bash


add_interfaces() {
    local team_count=$1
    
	for ((i = 1; i <= team_count; i++)); do
      if [[ "$i" -eq 10 ]]; then
        continue
      fi

	  pvesh create /nodes/$(hostname)/network \
      -iface "ctf$i" \
      -type bridge \
      -cidr "10.10.$i.255/24" \
      -comments "CTF NAT team$i" \
      -autostart 1
	done

	pvesh create /nodes/$(hostname)/network \
    -iface "ctf_org" \
    -type bridge \
    -cidr "10.10.10.255/24" \
    -comments "CTF NAT org" \
    -autostart 1
  ifreload -a
}

delete_interfaces() {
  local team_count=$1
  for ((i = 1; i <= team_count; i++)); do
    if [[ "$i" -eq 10 ]]; then
      continue
    fi

    pvesh delete "/nodes/$(hostname)/network/ctf$i"
  done
  pvesh delete /nodes/$(hostname)/network/ctf_org
  ifreload -a
}

team_count=$2
if [[ -z "$team_count" ]]; then
  echo -e "Incorrect team count.\nexample: $0 <command> 10"
  exit 1
fi

if ! [[ "$team_count" =~ ^[0-9]+$ ]]; then
  echo -e "Team count must be positive.\nexample: $0 <command> 10"
  exit 2
fi

if [[ "$1" == "create" ]]; then
  echo "Adding $team_count interfaces and ctf_org..."
  add_interfaces "$team_count"
elif [[ "$1" == "delete" ]]; then
  echo "Deleting ctf1..ctf$team_count and ctf_org..."
  delete_interfaces "$team_count"
else
  echo "usage: $0 <create|delete> <team_count>"
  exit 3
fi