inspec/docs/resources/docker_container.md.erb
Kimberly Garmoe b45b77cd13 Simplifies 'matchers' language in docs (#2496)
Signed-off-by: kagarmoe <kgarmoe@chef.io>
2018-01-31 07:24:16 -05:00

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---
title: About the docker_container Resource
---
# docker_container
Use the `docker_container` InSpec audit resource to test a docker container.
<br>
## Syntax
A `docker_container` resource block declares the configuration data to be tested:
describe docker_container('container') do
it { should exist }
it { should be_running }
its('id') { should_not eq '' }
its('image') { should eq 'busybox:latest' }
its('repo') { should eq 'busybox' }
its('tag') { should eq 'latest' }
its('ports') { should eq [] }
its('command') { should eq 'nc -ll -p 1234 -e /bin/cat' }
end
The container name can also be passed with the `name` argument:
describe docker_container(name: 'an-echo-server') do
it { should exist }
it { should be_running }
end
Alternatively, you can pass in the container id:
describe docker_container(id: '71b5df59442b') do
it { should exist }
it { should be_running }
end
<br>
## Examples
The following examples show how to use this InSpec resource.
### Verify an running container:
describe docker_container('an-echo-server') do
it { should exist }
it { should be_running }
its('id') { should_not eq '' }
its('image') { should eq 'busybox:latest' }
its('repo') { should eq 'busybox' }
its('tag') { should eq 'latest' }
its('ports') { should eq [] }
its('command') { should eq 'nc -ll -p 1234 -e /bin/cat' }
end
<br>
## Matchers
For a full list of available matchers please visit our [matchers page](https://www.inspec.io/docs/reference/matchers/).
### id
The `id` matcher tests the container id:
its('id') { should eq 'sha:71b5df59...442b' }
### repo
The `repo` matcher tests the value of the image repository:
its('repo') { should eq 'busybox' }
### tag
The `tag` matcher tests the value of the image tag:
its('tag') { should eq 'latest' }
### ports
The `ports` matcher tests the value the docker ports:
its('ports') { should eq '0.0.0.0:1234->1234/tcp' }
### command
The `command` matcher tests the value of the container run command:
its('command') { should eq 'nc -ll -p 1234 -e /bin/cat' }