Blue ngix config (proxy for ex. docker container)

nginx-blue-config

# Ngix blue proxy config
# save as /etc/nginx/sites-available/blue

server {
        listen 80 default_server;

        root /var/www/html;
        index index.html;

        server_name _;

        location / {
                proxy_pass http://127.0.0.1:8181;
                proxy_set_header Host $host;
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_set_header X-Forwarded-Proto $scheme;
        }
}