0-custom_http_response_header

#!/usr/bin/env bash
# Install and setup nginx with custom headers
# shellcheck disable=SC2154

function install_and_configure_nginx(){
    sudo apt-get update
    sudo apt-get -y install nginx
    sudo chown -R "$USER":"$USER" /var/www/html/
    echo 'Hello World!' > /var/www/html/index.html
    sudo chown -R "$USER":"$USER" /etc/nginx/sites-available/
    server_conf="server {
                listen 80 default_server;
                listen [::]:80 default_server;
                root /var/www/html;
                index index.html index.htm index.nginx-debian.html;
                server_name _;
                add_header X-Served-By \$hostname;
                location / {
                    try_files \$uri \$uri/ =404;
                }
                location /redirect_me {
                    rewrite ^ https://youtube.com/watch?v=QH2-TGUlwu4 permanent;
                }
                error_page 404 /404.html;
                location = /404.html {
                    internal;
                }
            }"
    echo -e "$server_conf" > /etc/nginx/sites-available/default
    if [[ $(pgrep nginx) ]]; then
        sudo nginx -s reload
    else
        sudo service nginx start
    fi
}
install_and_configure_nginx;