upstream minio_s3 {
    least_conn;
    server 10.0.75.55:9000;
    server 10.0.75.56:9000;
    server 10.0.75.57:9000;
    server 10.0.75.58:9000;
}

upstream minio_console {
    least_conn;
    server 10.0.75.55:9001;
    server 10.0.75.56:9001;
    server 10.0.75.57:9001;
    server 10.0.75.58:9001;
}

server {
    listen        80;
    listen   [::]:80;
    listen *:443 ssl;
    server_name  s3.example.local www.s3.example.local;
    ssl_certificate /etc/ssl/private/minio.crt;
    ssl_certificate_key /etc/ssl/private/private.key;

    server_tokens off;

    # Allow special characters in headers
    ignore_invalid_headers off;
    # Allow any size file to be uploaded.
    # Set to a value such as 1000m; to restrict file size to a specific value
    client_max_body_size 0;
    # Disable buffering
    proxy_buffering off;
    proxy_request_buffering off;

    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_connect_timeout 300;
        # Default is HTTP/1, keepalive is only enabled in HTTP/1.1
        proxy_http_version 1.1;
        proxy_set_header Connection "";
        chunked_transfer_encoding off;

        proxy_pass http://minio_s3; # This uses the upstream directive definition to load balance
    }

    location /minio/ui/ {
        rewrite ^/minio/ui/(.*) /$1 break;
        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_set_header X-NginX-Proxy true;

        # This is necessary to pass the correct IP to be hashed
        real_ip_header X-Real-IP;

        proxy_connect_timeout 300;

        # To support websockets in MinIO versions released after January 2023
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";

        chunked_transfer_encoding off;

        proxy_pass http://minio_console; # This uses the upstream directive definition to load balance
    }
}