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https://github.com/inspec/inspec
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240 lines
5.5 KiB
Markdown
240 lines
5.5 KiB
Markdown
# InSpec
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## What is InSpec?
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InSpec is an open-source testing framework for infrastructure with an easy language for specifying compliance, security, and policy requirements. The project name stands for "infrastructure specification" and can be thought of as an abbreviation of "inspect".
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You can use InSpec to examine any node in your infrastructure. The InSpec framework runs locally or remotely on the node being inspected. It uses test rules written in the InSpec language as input. Detected security, compliance, or policy issues are flagged in a log.
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The InSpec project includes many resources that help you write audit rules quickly and easily. Here are some examples.
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* Disallow insecure protocols - In this example, the package and inetd_conf resources ensure that insecure services and protocols, such as telnet, are not used.
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```ruby
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describe package('telnetd') do
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it { should_not be_installed }
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end
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describe inetd_conf do
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its("telnet") { should eq nil }
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end
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```
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* Only accept requests on secure ports - This test ensures, that a web server is only listening on well-secured ports.
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```ruby
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describe port(80) do
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it { should_not be_listening }
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end
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describe port(443) do
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it { should be_listening }
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its('protocol') {should eq 'tcp'}
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end
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```
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* Use approved strong ciphers - This test ensures, that only enterprise-compliant ciphers are used for SSH servers.
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```ruby
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describe sshd_config do
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its('Ciphers') { should eq('chacha20-poly1305@openssh.com,aes256-ctr,aes192-ctr,aes128-ctr') }
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end
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```
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* Test your `kitchen.yml` file, to verify that only Vagrant is configured as the driver.
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```ruby
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describe yaml('.kitchen.yml') do
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its('driver.name') { should eq('vagrant') }
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end
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```
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## Test your Server, VM, or workstation.
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Small example: Write a your checks in `test.rb`:
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```ruby
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describe file('/proc/cpuinfo') do
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it { should be_file }
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end
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describe ssh_config do
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its('Protocol') { should eq('2') }
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end
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```
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Run this file locally:
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```bash
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inspec exec test.rb
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```
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## Installation
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Requires Ruby ( >1.9 ).
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To simply run it without installation, you must install [bundler](http://bundler.io/):
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```bash
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bundle install
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bundle exec bin/inspec help
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```
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To install it as a gem locally, run:
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```bash
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gem build inspec.gemspec
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gem install inspec-*.gem
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```
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You should now be able to run:
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```bash
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inspec --help
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```
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## Usage
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### exec
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Run tests against different targets:
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```bash
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# run test locally
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inspec exec test.rb
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# run test on remote host on SSH
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inspec exec test.rb -t ssh://user@hostname
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# run test on remote windows host on WinRM
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inspec exec test.rb -t winrm://Administrator@windowshost --password 'your-password'
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# run test on docker container
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inspec exec test.rb -t docker://container_id
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```
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### detect
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Verify your configuration and detect
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```bash
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id=$( docker run -dti ubuntu:14.04 /bin/bash )
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inspec detect -t docker://$id
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```
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Which will provide you with:
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```
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{"family":"ubuntu","release":"14.04","arch":null}
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```
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## Custom resources
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You can easily create your own resources. Here is a custom resource for an
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application called Gordon and save it in `gordon_config.rb`:
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```ruby
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require 'yaml'
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class GordonConfig < Inspec.resource
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name 'gordon_config'
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def initialize
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@path = '/etc/gordon/config.yaml'
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@config = inspec.file(@path).content
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@params = YAML.load(@config)
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end
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def method_missing(name)
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@params[name.to_s]
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end
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end
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```
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Include this file in your `test.rb`:
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```ruby
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require_relative 'gordon_config'
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```
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Now you can start using your new resource:
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```ruby
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describe gordon_config do
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its('Version') { should eq('1.0') }
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end
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```
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## Tests
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We perform `unit`, `resource` and `integration` tests.
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* `unit` tests ensure the intended behaviour of the implementation
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* `resource` tests run against docker containers
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* `integration` tests run against VMs via test-kitchen and [kitchen-inspec](https://github.com/chef/kitchen-inspec)
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### Unit tests
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Just
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```bash
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bundle exec rake test
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```
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as usual.
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### Resource tests
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Make sure the backend execution layer behaves as expected. These tests will take a while, as a lot of different operating systems and configurations are being tested.
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You will require:
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* docker
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Run `resource` tests with
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```bash
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bundle exec rake test:resources config=test/test.yaml
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bundle exec rake test:resources config=test/test-extra.yaml
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```
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### Integration tests
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These tests download various virtual machines, to ensure InSpec is working as expected across different operating systems.
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You will require:
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* vagrant with virtualbox
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* test-kitchen
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Run `integration` tests with
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```bash
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cd test/integration
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bundle exec kitchen test -t .
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```
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### Chef Delivery Tests
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It may be informative to look at what [tests Chef Delivery](https://github.com/chef/inspec/blob/master/.delivery/build-cookbook/recipes/unit.rb) is running for CI.
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## Learn More
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For more information see the InSpec documentation: https://github.com/chef/inspec/tree/master/docs
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## Kudos
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InSpec is inspired by the wonderful [Serverspec](http://serverspec.org) project. Kudos to [mizzy](https://github.com/mizzy) and [all contributors](https://github.com/mizzy/serverspec/graphs/contributors)!
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## Contributing
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1. Fork it
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1. Create your feature branch (git checkout -b my-new-feature)
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1. Commit your changes (git commit -am 'Add some feature')
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1. Push to the branch (git push origin my-new-feature)
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1. Create new Pull Request
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Copyright 2015 Chef Software Inc. All rights reserved.
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Copyright 2015 Vulcano Security GmbH. All rights reserved.
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Copyright 2015 Dominik Richter. All rights reserved.
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