EC2(AmazonLinux) Userdata to setup Squid server

setup-squid-on-ec2.sh

sudo yum update -y
sudo yum install -y squid

sudo cat <<EOL > /etc/squid/squid.conf
auth_param basic program /usr/lib64/squid/basic_ncsa_auth /etc/squid/passwd
auth_param basic realm proxy
auth_param basic children 5

acl HTTP_ports port 443
acl HTTP_ports port 80
acl SSL_ports port 443
acl auth proxy_auth REQUIRED

http_access deny !HTTP_ports
http_access deny CONNECT !SSL_ports
http_access deny to_localhost
http_access allow auth

http_port 3128
cache deny all
EOL

sudo echo '<YOUR .htpasswd FORMAT PAYLOAD>' > /etc/squid/passwd

sudo systemctl enable squid
sudo systemctl restart squid