Disable logging on nginx pod for ELB-HealthChecker/2.0 User-Agent

I am sending EKS logs to ELK stack. It is working great, but AWS ELB health check creates lots of logs and does not let me track other events properly on Kibana dashboard.

My images are based on nginx. Here is nginx configuration to disable nginx logging for ELB-HealthChecker/2.0

First, create a map for user agent and set new access_log in related config parts then create new docker image. I updated /etc/nginx/conf.d/default.conf in this example. Because I am using following statement in Dockerfile. You should update the correct nginx conf file based on your Dockerfile configuration.

COPY nginx.conf /etc/nginx/conf.d/default.conf

#Disable logging for ELB healthcheck. It creates lots of noise on logging platform
# https://docs.nginx.com/nginx/admin-guide/monitoring/logging/#enabling-conditional-logging
map $http_user_agent $ignore_ua {
default                 1;
"ELB-HealthChecker/2.0" 0;
}
server {
listen       80;
server_name  localhost;
location / {
root   /usr/share/nginx/html;
index  index.html index.htm;
access_log /var/log/nginx/access.log combined if=$ignore_ua;
}

Ismail YENIGUL

Devops Engineer