inspec/docs/resources/docker_container.md.erb
Christoph Hartmann 218bda9c34 Docker resource (#1566)
* add docker, docker_container, and docker_image resources

Signed-off-by: Christoph Hartmann <chris@lollyrock.com>
2017-04-24 10:47:03 -04:00

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---
title: About the docker_container Resource
---
# docker_container
Use the `docker_container` InSpec audit resource to test a docker container.
## 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
## Matchers
This InSpec audit resource has the following 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' }
## 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