Docker
Docker Basic
Why do we learn ‘Docker’ ?
- portability : 이식성 :
- It allow users to install or implement target(SW) in any dev enviroment
Terminology
- IP / Port
- Every machine has their own address. and in there, eache software has their own room number. so address:port (127.0.0.1:3000) is the example of it.
- IP : address of machine (computer)
- Port : exact software’s room number
- additional info
- default port = 80
- 20 : SSH / 80 : HTTP / 443 : HTTPS
- Container / Image
- container : mini-computer
- image : game pack