codermaze / alpine-nginx-lb

Alpine Nginx Loadbalancer

ALPINE based NGINX loadbalancer

alpine-nginx-lb is an alpine linux flavored docker container with nginx used to loadbalance applications with a minimal image with size less than 7MB.

build/sites.conf -> file is used to configure the uri paths of the applications to be load balanced.

docker-compose.yaml - is used to bring up application containers to be loadbalanced and also brings up the nginx container after all dependent containers are available.

Start/stop using Docker-Compose?

How to start

    docker-compose -f docker-compose.yml -p local-app-lb up -d

How to stop

    docker-compose -f docker-compose.yml -p local-app-lb down

Start/Stop using NPM

How to start

    npm start

How to stop

    npm stop

URL's to be accessible by the loadbalancer

Server 1 Direct Server 2 Direct Server 3 Direct

Server 1 LB Server 2 LB Server 3 LB

Multiple sites with multiple docker containers

Add below to hosts file

127.0.0.1 qa1.test.com 127.0.0.1 qa1a.test.com 127.0.0.1 qa2.test.com 127.0.0.1 qa2.internal.test.com

Adding above hosts are to have those sample domains working on local machines. If you make any changes to the host names, also modify the same in conf.d file in build/loadbalancer/conf.d.

For real domains that can be resolved, shouldn't need these to be added to hosts file or to the conf.d file.

Now only below urls will work

http://qa1.test.com:8000/ui/app/firstapp http://qa2.test.com:8000/ui/app/secondapp http://qa2.internal.com:8000/ui/app/thridapp

PORT 8000 is used for test purposes, so, we dont have any other port conflicts when running locally with port 80. try the above domain combinations with different paths will throw 404.