I've been reviewing various web pages about and mailing list references, and am
hoping for a canonical answer.
I've got a customized Tomcat configuration in AWS, and need to load balance
multiple instances on each host of a load-balanced pool in AWS for a testable
configuration. I'm using the AWS ELB load balancers in front of all the AWS
hosts, and just started running nginx 1.6.2 with the relevant realip module
compiled in to spread the load even further among multiple tomcat instances on
each host.
Can anyone confirm for that that they have AWS based hosts with the ELB load
balancer in front, and nginx and tomcat doing correctly recording the
connecting IP address in the tomcat logs? Or can point out issues with this
configuration? I'm concerned that I've missed something needed in the Tomcat
configuration. That was apparently working well with just the ELB load balancer
in place.
http {
# standard nginx settings left out left out of email
# Recommended AWS settings from various Google documents
set_real_ip_from 0.0.0.0/0;
real_ip_header X-Forwarded-For;
real_ip_recursive on;
# Recommended values, the remote IP addresses are showing up in
/var/log/nginx/access.log
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
server {
listen 80 default_server;
server_name _;
location / {
proxy_pass http://tomcat_servers;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
# nginx package standard values
error_page 404 /404.html;
location = /404.html {
root /usr/share/nginx/html;
}
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /usr/share/nginx/html;
}
}
# HTTPS not currently used
# Local tomcat instances
upstream tomcat_servers {
server 127.0.0.1:8080;
server 127.0.0.1:8081;
}
}
Nico Kadel-Garcia
Lead DevOps Engineer
[email protected]<mailto:[email protected]>
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