server {
    listen 80;
    listen [::]:80;
    
    # server_name
    #     ${NGINX_SERVER_NAMES}
    #     ;
    server_name
        flask_gunicorn.localhost demo.localhost dev.localhost
        
        dev-app.oneskyit.com
        dev-connect.oneskyit.com *.dev-connect.oneskyit.com
        dev-demo.oneskyit.com *.dev-demo.oneskyit.com
        
        dev-aacc.oneskyit.com *.dev-aacc.oneskyit.com
        dev-aapor.oneskyit.com *.dev-aapor.oneskyit.com
        dev-businessgroup.oneskyit.com *.dev-businessgroup.oneskyit.com
        
        dev-cmsc.oneskyit.com *.dev-cmsc.oneskyit.com
        dev-idaa.oneskyit.com *.dev-idaa.oneskyit.com
        dev-ishlt.oneskyit.com *.dev-ishlt.oneskyit.com
        dev-lci.oneskyit.com *.dev-lci.oneskyit.com
        dev-ncsd.oneskyit.com *.dev-ncsd.oneskyit.com
        dev-npa.oneskyit.com *.dev-npa.oneskyit.com
        dev-rli.oneskyit.com *.dev-rli.oneskyit.com
        
        test-app.oneskyit.com
        test-idaa.oneskyit.com *.test-idaa.oneskyit.com
        test-ishlt.oneskyit.com *.test-ishlt.oneskyit.com
        ;

    access_log  /logs/nginx/access_flask_gunicorn.log;
    error_log  /logs/nginx/error_flask_gunicorn.log;

    client_max_body_size ${OSIT_WEB_MAX_BODY_SIZE}; # 5120M; #4096M or 4G; 5120M or 5G;

    location / {
        proxy_set_header Host $http_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;

        proxy_redirect off;
        proxy_buffering off;

        # This is needed for long running Python code. Default is 60 seconds
        # Increased from 1200 to 1500 on 2022-04-17
        fastcgi_connect_timeout 1500s;
        fastcgi_send_timeout 1500s;
        fastcgi_read_timeout 1500s;
        proxy_read_timeout 1500s;

        proxy_pass http://flask_backend;
    }
}


server {
    listen 443 ssl;
    listen [::]:443 ssl http2;
    
    # The Docker nginx envsubst with templates does not work for multiple server names.
    # server_name
    #     ${NGINX_SERVER_NAMES}
    #     ;
    server_name
        flask_gunicorn.localhost demo.localhost dev.localhost
        
        dev-app.oneskyit.com
        dev-connect.oneskyit.com *.dev-connect.oneskyit.com
        dev-demo.oneskyit.com *.dev-demo.oneskyit.com
        
        dev-aacc.oneskyit.com *.dev-aacc.oneskyit.com
        dev-aapor.oneskyit.com *.dev-aapor.oneskyit.com
        dev-businessgroup.oneskyit.com *.dev-businessgroup.oneskyit.com
        
        dev-cmsc.oneskyit.com *.dev-cmsc.oneskyit.com
        dev-idaa.oneskyit.com *.dev-idaa.oneskyit.com
        dev-ishlt.oneskyit.com *.dev-ishlt.oneskyit.com
        dev-lci.oneskyit.com *.dev-lci.oneskyit.com
        dev-ncsd.oneskyit.com *.dev-ncsd.oneskyit.com
        dev-npa.oneskyit.com *.dev-npa.oneskyit.com
        dev-rli.oneskyit.com *.dev-rli.oneskyit.com
        
        test-app.oneskyit.com
        test-idaa.oneskyit.com *.test-idaa.oneskyit.com
        test-ishlt.oneskyit.com *.test-ishlt.oneskyit.com
        ;

    access_log  /logs/nginx/access_flask_gunicorn.log;
    error_log  /logs/nginx/error_flask_gunicorn.log;

    include /etc/nginx/options-ssl-nginx.conf;

    ssl_certificate /etc/certs/fullchain.pem;
    ssl_certificate_key /etc/certs/privkey.pem;
    ssl_dhparam /etc/certs/ssl-dhparams.pem;

    # include brotli.conf;
    # include gzip.conf;

    client_max_body_size ${OSIT_WEB_MAX_BODY_SIZE}; # 5120M; #4096M or 4G; 5120M or 5G;

    location / {
        proxy_set_header Host $http_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;

        proxy_redirect off;
        proxy_buffering off;

        # This is needed for long running Python code. Default is 60 seconds
        # Increased from 1200 to 1500 on 2022-04-17
        fastcgi_connect_timeout 1500s;
        fastcgi_send_timeout 1500s;
        fastcgi_read_timeout 1500s;
        proxy_read_timeout 1500s;

        proxy_pass http://flask_backend;
    }
}


upstream flask_backend {
    # sticky sessions
    ip_hash;

    # enable least connections balancing method
    # least_conn;

    # zone backend 64k;  # Use NGINX Plus' shared memory

    # server webserver1 weight=1;
    # server webserver2 weight=4;

    # larger number will recieve more requests
    # Example of 20 vs 10: 20 will recieve twice as many requests as 10
    server aether_app_gunicorn:5005 weight=20 max_fails=3 fail_timeout=30s;
    # server aether_app_gunicorn_bak:5005 weight=10 max_fails=1 fail_timeout=30s;

    # maintain up to 20 idle connections to the group of upstream servers
    # keepalive 20;
}