This is a simple docker container that just runs exits successfully.

I use it with my docker-compose.override.yml files to not waste a bunch of

resources when using a shared service during development.

For example, say I have the following docker-compose.yml file:

redis:

image: redis:2.8

app:

build: .

links:

- redis:redis

When I'm running this locally, I typically have a separate redis running that's

being used by multiple other apps. So I'll add a docker-compose.override.yml

like the following

redis:

image: rwgrim/docker-noop

app:

links: []

external_links:

- redis:redis

What this does is remove all the existing links and then uses external_links to

link to my already running redis container. However, since there is no way to

disable a service with docker-compose, we override the redis in the

docker-compose.yml to use the noop container which is tiny and exits

immediately instead of sitting around wasting resources which can't be used by

anything else.