chef

https://github.com/opscode/chef

Ruby

A systems integration framework, built to bring the benefits of configuration management to your entire infrastructure.

Chef::DSL::PlatformIntrospection#docker?

Shamelessly stolen from https://github.com/sethvargo/chef-sugar/blob/master/lib/chef/sugar/docker.rb
Given a node object, returns whether the node is a docker container.

=== Parameters
node:: [Chef::Node] The node to check.

=== Returns
true:: if the current node is a docker container
false:: if the current node is not a docker container

Source | Google | Stack overflow

Edit

git clone [email protected]:opscode/chef.git

cd chef

open lib/chef/dsl/platform_introspection.rb

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-Chef--DSL--PlatformIntrospection-docker--for-pr

# Commit to git

git add lib/chef/dsl/platform_introspection.rbgit commit -m "better docs for Chef::DSL::PlatformIntrospection#docker?"

# Open pull request

gem install hub # on a mac you can `brew install hub`

hub fork

git push <your name> -your-name--update-docs-Chef--DSL--PlatformIntrospection-docker--for-pr

hub pull-request

# Celebrate!