August 2017
Intermediate to advanced
278 pages
8h 53m
English
Content preview from NGINX Cookbook
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How it works...
In our NGINX configuration (default.conf), we add the resolver directive (resolver 127.0.0.11 valid=1) that directs NGINX to use the built-in Docker DNS resolver. In order to distribute the load, setting the validity to 1 means any TTL is ignored and the result only stays valid for 1 second.
Then, we set the variable $backend to http://htestbackend:8000. The use of a variable ensures that it's evaluated each time in order to have the IP address updated.
Within Dockerfile, we have set the alias for the htest container to htestbackend. Once we call the scale command, this starts three additional containers. Although a unique name is allocated to each container (for example, loadbalancer_htest_1), the alias ensures that there's ...
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