Useful docker aliases

Some useful bash aliases:

 alias build="docker-compose build --no-cache"  
 alias up="docker-compose up -d"  
 alias logs="docker-compose logs --tail 50 -f"  
 alias run="docker-compose exec"  
 alias stop="docker-compose stop"  
 alias purge-containers="docker ps -aq | xargs docker rm"  
 alias purge-images="docker images -a | grep '<none>' | awk '{print $3}' | xargs docker rmi"