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

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