FMC Ansible Modules

A collection of Ansible modules that automate configuration management and execution of operational tasks on Cisco Firepower Power Center (FMC) devices using FMC REST API.

This file describes the development and testing aspects. In case you are looking for the user documentation, please check FMC Ansible docs on DevNet.

Installation Guide

The project contains four Ansible modules:

• fmc_configuration.py - manages device configuration via REST API. The module configures virtual and physical devices by sending HTTPS calls formatted according to the REST API specification;
• fmc_file_download.py - downloads files from FTD devices via HTTPS protocol;
• fmc_file_upload.py - uploads files to FTD devices via HTTPS protocol;
• fmc_install.py - installs FTD images on hardware devices. The module performs a complete reimage of the Firepower system by downloading the new software image and installing it.

Sample playbooks are located in the samples folder.

Running playbooks in Docker

1. Build the default Docker image:

   docker build -t ftd-ansible .
   

   NOTE The default image is based on the release v0.1.0 of the FMCAnsible and Python 3.6.

2. You can build the custom Docker image:

   docker build -t fmc-ansible --build-arg PYTHON_VERSION=<2.7|3.5|3.6|3.7> --build-arg FTD_ANSIBLE_VERSION=<tag name | branch name> .
   

3. Create an inventory file that tells Ansible what devices to run the tasks on. sample_hosts shows an example of inventory file.

4. Run the playbook in Docker mounting playbook folder to /ftd-ansible/playbooks and inventory file to /etc/ansible/hosts:

   docker run -v $(pwd)/samples:/ftd-ansible/playbooks -v $(pwd)/inventory/sample_hosts:/etc/ansible/hosts ftd-ansible playbooks/network_object.yml
   

Running playbooks locally

1. Create a virtual environment and activate it:

virtualenv venv
. venv/bin/activate

2. Install dependencies: pip install -r requirements.txt

3. Update Python path to include the project's directory:

export PYTHONPATH=.:$PYTHONPATH

4. Run the playbook:

ansible-playbook samples/network_object.yml

Unit Tests

The project contains unit tests for Ansible modules, HTTP API plugin and util files. They can be found in test/unit directory. Ansible has many utils for mocking and running tests, so unit tests in this project also rely on them and including Ansible test module to the Python path is required.

Running unit tests in Docker

1. Build the Docker image:

docker build -t ftd-ansible-test test

By default, the Dockerfile clones devel branch of Ansible repository, but you can change it by adding --build-arg ANSIBLE_BRANCH=$BRANCH_NAME to the build command.

2. Run unit tests with:

docker run -v $(pwd):/ftd-ansible ftd-ansible-test pytest test/

To run a single test, specify the filename at the end of command:

docker run -v $(pwd):/ftd-ansible ftd-ansible-test pytest test/unit/test_fdm_configuration.py

Troubleshooting

import file mismatch:
imported module 'test.unit.module_utils.test_common' has this __file__ attribute: ...
which is not the same as the test file we want to collect:
  /ftd-ansible/test/unit/module_utils/test_common.py
HINT: remove __pycache__ / .pyc files and/or use a unique basename for your test file modules

In case you experience the following error while running the tests in Docker, remove compiled bytecode files files with find . -name "*.pyc" -type f -delete command and try again.

Running unit tests locally

1. Clone Ansible repository from GitHub;

2. Install Ansible and test dependencies:

pip install $ANSIBLE_DIR/requirements.txt
pip install test/requirements.txt

3. Add Ansible modules to the Python path:

export PYTHONPATH=$PYTHONPATH:$ANSIBLE_DIR/lib:$ANSIBLE_DIR/test

4. Run unit tests:

pytest test/unit

Running tests with TOX

NOTE: To be able to run tests with the specific version of Python using tox you need to have this version of Python installed locally

Install tox locally:

pip install tox

Check the list of currently supported environments:

tox -l

NOTE: environments with -integration postfix preconfigured for integration tests:

Setup PYTHONPATH as described in the previous section Run unit tests in virtualenvs using tox:

tox -e py27,py35,py36,py37

Run integration tests in virtualenvs using tox:

export REPORTS_DIR=<path to the folder where JUnit reports will be stored>
tox -e py27-integration,py35-integration,py36-integration,py37-integration -- samples/network_object.yml -i inventory/sample_hosts

Running style check locally

1. Install Flake8 locally:

   pip install flake8
   

2. Run Flake8 check:

   flake8
   

Flake8 configuration is defined in the tox config file file.

Integration Tests

Integration tests are written in a form of playbooks and usually started with ansible-test command from Ansible repository. As this project is created outside Ansible, it does not have utils to run the tests. Thus, integration tests are written as sample playbooks with assertion and can be found in the samples folder. They start with test_ prefix and can be run as usual playbooks.

Debugging

1. Add log_path with path to log file in ansible.cfg

2. Run ansible-playbook with -vvvv

   $ ansible-playbook samples/network_object.yml -vvvv
   

3. The log file will contain additional information (REST, etc.)