How to configure nginx as load balancer in CJE

Issue

  • How to configure nginx as load balancer in CJE

Environment

Resolution

Nginx Load Balancer Example

For example, to use Nginx as your load balancer here???s what you would do:

  • Use a dedicated VM instance running Ubuntu 14.04 LTS (192.168.1.99). This instance must have network connectivity to all Controller nodes (192.168.1.240, 192.168.1.247, and 192.168.1.251).
  • Install nginx by executing on the instance, sudo apt-get install nginx
  • Add the following line to the file /etc/nginx/nginx.conf if it is not already there in the http block.
http {
  ...
  include /etc/nginx/conf.d/*.conf;
}
  • Create an additional file /etc/nginx/conf.d/jce.conf
upstream backend {
  server 192.168.1.240;
  server 192.168.1.247;
  server 192.168.1.251;
}

log_format access_apps_path_mode '$remote_addr - $remote_user [$time_local] "$request" $status $body_bytes_sent "$http_referer" "$http_user_agent"';

server {
  listen 80;

  server_name cje.example.com mesos.cje.example.com marathon.cje.example.com;

  access_log /var/log/nginx/apps_path_mode.log access_apps_path_mode;

  location / {
??????  proxy_pass http://backend;
??????  proxy_set_header Host $host;
??????  proxy_redirect off;

??????  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;

  ??????client_max_body_size 250m;
??????  client_body_buffer_size 128k;

  ??????proxy_connect_timeout 90;
??????  proxy_send_timeout 300;
??????  proxy_read_timeout 300;

  ??????proxy_buffering off;

??????  proxy_temp_file_write_size 64k;
  }
}
  • Restart Nginx by executing sudo service nginx restart
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