Pulp 3 Ansible installer

The Pulp 3 Ansible installer consists of a collection of roles. Each role installs and configures a component of Pulp. The roles are not currently available on Ansible Galaxy; to run the Pulp 3 Ansible installer, the ansible-pulp git repository must be cloned.

System Requirements

The control node must have Python 3 and Ansible installed.

The managed node must be one of these currently supported operating systems:

• Fedora 28
• CentOS 7

Variables

Each role documents all the variables that it uses in a separate README, and some variables are shared between multiple roles.

Required Variables: Most variables have sane defaults but a few are required. See example-use/group_vars/all for the minimal set of required variables.

Ansible Boilerplate

These roles can be used against any managed node and are highly configurable. Knowledge of ansible basics will be helpful, but even if you are new to Ansible, this section will get you started, or you can try the Vagrant installations to bypass the Ansible boilerplate.

First, you will need to configure ssh between your control node and your managed node. When you can ssh into the managed node without a password, you are ready to move to the next step.

Next, add the managed node's hostname or ip address to /etc/ansible/hosts.

It may be helpful to ensure that Ansible can communicate with the managed node.

ansible all -m ping -u <managed_node_username>

Using the example playbook

The playbook has external requirements which should be installed from ansible-galaxy.

ansible-galaxy install -r requirements.yml

You should now be able to run the example playbook.

Some of the roles used in the playbook use root privalages on the managed node, so when prompted, you will need to provide the password for the managed node user.

ansible-playbook example-use/playbook.yml -u <managed_node_username> --ask-become-pass

To configure a custom install, you will need to set configuration variables. In the simplest case, they can be set in the playbook. See the ansible docs for more flexible idiomatic alternatives.

Testing

The tests can be run as they are on travis with tox, or they can run with various options using molecule directly.

Requirements: Install Docker, and add yourself to the group that is authorized to administer containers, and log out and back in to make the permissions change take effect. The authorized group is typically the "docker" group:

gpasswd --add "$(whoami)" docker

NOTE: Docker containers can differ from bare-metal or VM OS installs. They can have different packages installed, they can run different kernels, and so on.

Using Tox:

1. Install tox. This can be done through the system package manager or into a virtualenv:

   python3 -m venv ~/.venvs/ansible-pulp
   pip install --upgrade pip
   pip install tox

2. Install at least one of the Python interpreters listed in tox.ini. These are currently Python 2.7 and 3.6. WARNING: Anyone added to the docker group is root equivalent. More information here and here.

3. Run tox. If you only have a subset of the supported Python interpreters available, specify which environments to exercise:

   tox -e py36

Using Molecule:

1. Install molecule. It is recommended that you do so with pip in a virtualenv.

2. Run molecule commands.

   Test all scenarios on all hosts.

   molecule test --all

   Test a specific scenario.

   molecule test --scenario-name source

   Use debug for increased verbosity.

   molecule --debug test --all

   Create and provision, but don't run tests or destroy.

   molecule converge --all