This is an old revision of the document!
Docker the Tool of build-run-delivery
- Case study: when building pipeline, if everyone is on same team and on same page, it is easy to build one system for all,
- use same configure tool to auto configure each user setting
- use shared network drive to run same app
- use centralized library to run all tools
- bad situation: when there is more than 1 team working on more than 1 type of projects
- when configure need to different to fit different team need
- and when configure need to be switched when switching between projects due to nature of code dependency and nature of compability
- not all languages is version back compatible
- Python 2 and Python 3, Qt4 and Qt5 are already quite compatible in some way with some standard coding stlye to fit 2×2 combination
- but in web development, some library change dramatically to improve efficiency and so are some game projects required some old assets to maintain.
- so more and more situations happen in real life in a less standardized and diversed task-oriented world.
- so Docker is the solution to let use pack versions of thing is a container to ship a all-in-one package like XAMPP (apache,sql,php ready to run pack), and much more than it (which allows multi-version run at same time)
- disadvantage of container
- duplicate of same things may happen in so many containers
- sacrifice a bit of disk space for easy install and easy remove like portable app