ssr-nginx.conf

map $sent_http_content_type $expires {
    "text/html" epoch;
    "text/html; charset=utf-8"  epoch;
    default off;
}

map $http_upgrade $connection_upgrade {
    default upgrade;
    ''      close;
}

server {
    listen 6060;
    server_name localhost;

    gzip on;
    gzip_proxied any;
    gzip_types  text/plain application/xml text/css application/javascript application/json;
    gzip_min_length 1000;
    gzip_vary on;
    gzip_disable "MSIE [1-6]\.(?!.*SV1)";
    
    client_max_body_size 20M;
    proxy_connect_timeout 5m;
    proxy_send_timeout 5m;
    proxy_read_timeout 5m;
    send_timeout 5m;

    proxy_max_temp_file_size 0;

    location /client {
        expires $expires;
        proxy_redirect off;
        proxy_set_header Host $host;
        proxy_set_header Origin $http_origin;
        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_read_timeout 1m;
        proxy_connect_timeout 1m;
        proxy_pass http://appname-frontend-service:4200;
    }

    location /client/sockjs-node {
        proxy_pass http://appname-frontend-service:4200;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
    }

    location /api {   
        proxy_set_header Host $host;
        proxy_set_header Origin $http_origin;
        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_pass http://appname-backend-service:3333;
    }

    location /oauth {   
        proxy_set_header Host $host;
        proxy_set_header Origin $http_origin;
        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_pass http://appname-backend-service:3333;
    }

    location /auth {   
        proxy_set_header Host $host;
        proxy_set_header Origin $http_origin;
        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_pass http://appname-backend-service:3333;
    }

    location /graphql {      
        proxy_set_header Host $host;
        proxy_set_header Origin $http_origin;
        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_pass http://appname-backend-service:3333;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
    }

    location / {
        expires $expires;
        proxy_redirect off;
        proxy_set_header Host $host;
        proxy_set_header Origin $http_origin;
        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_read_timeout 1m;
        proxy_connect_timeout 1m;
        try_files $uri @prerender;
    }

    location @prerender {
        #proxy_set_header X-Prerender-Token YOUR_TOKEN;

        set $prerender 0;
        if ($http_user_agent ~* "baiduspider|twitterbot|facebookexternalhit|rogerbot|linkedinbot|embedly|quora link preview|showyoubot|outbrain|pinterest|slackbot|vkShare|Slack-ImgProxy|Slackbot-LinkExpanding|Site Analyzer|SiteAnalyzerBot|Viber|Whatsapp|Telegram|W3C_Validator|googlebot|bingbot|yandex|baiduspider|twitterbot|facebookexternalhit|rogerbot|linkedinbot|embedly|quora link preview|showyoubot|outbrain|pinterest\/0\.|pinterestbot|slackbot|vkShare|W3C_Validator|whatsapp") {
            set $prerender 1;
        }
        if ($args ~ "_escaped_fragment_") {
            set $prerender 1;
        }
        if ($http_user_agent ~ "Prerender") {
            set $prerender 0;
        }
        if ($uri ~* "\.(js|css|xml|less|png|jpg|jpeg|gif|pdf|doc|txt|ico|rss|zip|mp3|rar|exe|wmv|doc|avi|ppt|mpg|mpeg|tif|wav|mov|psd|ai|xls|mp4|m4a|swf|dat|dmg|iso|flv|m4v|torrent|ttf|woff|svg|eot)") {
            set $prerender 0;
        }
        
        # resolve using Google's DNS server to force DNS resolution and prevent caching of IPs
        # resolver 8.8.8.8;

        if ($prerender = 1) {
            # setting prerender as a variable forces DNS resolution since nginx caches IPs and doesnt play well with load balancing
            # set $prerender "appname-landing-ssr-service:4200";
            # rewrite .* /http://$prerender$request_uri? break;
            proxy_pass http://appname-landing-ssr-service:5000;
        }
        if ($prerender = 0) {
            proxy_pass http://appname-landing-service:4200;
        }
    }

    location /sockjs-node {
        proxy_pass http://appname-landing-service:4200;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
    }
}