I need to remember all these things

docker_cheatsheet.txt

You can exec into a container as root, rathern the defined USER
`docker exec -it --user root <> <cmd>

# Logging Related
`docker container logs —tail 5 <id>`

# Tagging and Pushing Images
The most generic way to define an image tag is <registry URL>/<User or Org>/<name>:<tag>.
When pushing, given no registry, Dockerhub is assumed.

```
docker image tag alpine:latest gnschenker/alpine:1.0
docker login -u gnschenker -p <my secret password>
docker image push gnschenker/alpine:1.0
```

# Quickly running a Rails Server
Bind the host port 3000 to local 3000 and listen to all IP addresses not just localhost (127.0.0.1)
`docker run -p 3000:3000 <image> bin/rails s -b 0.0.0.0`