This is about creating and testing HAproxy (v1.9). It sets up an evironment with two Nginx containers (one on 1.14 and other in the latest version) in a same virtual network with the HAproxy, then it runs curl to get the version of both Nginx servers.
The createHAproxytest.sh script installs the whole tool set needed in this lab on a Centos 7.5.
./createHAproxy.sh or
curl -sS https://raw.githubusercontent.com/hebertsonm/haproxytest/master/createHAproxytest.sh | bash -
- Copy the files
Dockerfileandhaproxy.cfgto a folder in a docker server, and build the image.
sudo docker build . -t haproxy1
- Create the network and containers.
sudo docker network create vanhack-vnet --subnet=172.18.0.0/16
sudo docker run -d --name nginx1 --network vanhack-vnet nginx
sudo docker run -d --name nginx2 --network vanhack-vnet nginx:1.14
sudo docker run -d --name haproxy --network vanhack-vnet haproxy1
- Test the load balacing by executing the curl command many times
curl -i 172.18.0.4 | grep Server