• Create an account on Docker hub and create a new project
• Go into ./docker-compose/docker-compose.yml file and change the following image names and tags according to the new project you created on the Docker Hub

lombax85/kubetestphp:0.1
lombax85/kubetestmysql:0.1

• Enable Kubernetes in Docker for Mac Preferences
• Login to docker hub, build and push the images

cd docker-compose  
docker login
docker-compose build
docker-compose push

• Deploy the stack

docker stack deploy -c docker-compose.yml kubetest

• Wait for the stack to be running

• Connect to http://localhost - the php container will connect to mysql container If you see a connection error, wait for the MySQL Container to be up and running

Some commands to inspect the stack:

docker stack ls
docker stack services kubetest
kubectl get all --all-namespaces

Remove the stack

docker stack rm kubetest