dang-hoang-hieu / docker-memo Goto Github PK

This is for testing docker feature & guide for daily usages

I. Daily used commands

1. Check container running & already existed

docker ps
docker ps -f status=exited

2. How to use Binding.pry or Byebug:

set 2 options to service in docker-compose & reset service

tty: true
stdin_open: true

docker ps # to get the id or name of container
docker attach name_of_container/or id
# after the execution stop at the `byebug` line, you can start debug

To correctly exit debug and detach, type continue to exit debug and then type CTRL + p + q to detach ( if you CTRL + D then CTRL + C it will stop the server container)

3. How to access container and run commands:

docker ps
docker exec -it name_of_container/or id bash # now you are inside container, you can start running `rails console` 

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II. Scenerios

1. binding current dir to using current dir code, mount sharing volume for bundle:

docker volume create test_ruby_volume
docker run -it --rm -v test_ruby_volume:/bundle -v ${PWD}:/app -w /app -e BUNDLE_PATH=/bundle ruby bash