Docker concept
Docker host: machine Docker program installed
Docker Client: connecting the host operating Docker
Docker Mirror: software (Tomcat, Redis, etc.) packaged mirroring, for creating templates Docker containers
Docker Warehouse: Docker image storage warehouse, public warehouse ( https://hub.docker.com ) or a private warehouse
Docker containers: a starting instance of the image by Docker command, or a group of applications run independently
Use Docker step
1) Installation Docker
2) to obtain the warehouse Mirror
3) Docker Docker command to start the image creation Docker container
4) Startup Object Docker container is to stop software (Tomcat, Redis) start stop