Managed Node Bootstrap

Bootstrap an ansible managed node with minimal dependencies. This was originally written to bootstrap instances of distribution base docker images, and hence might require improvements before it becomes stable for non container usage.

Current supported distributions are;

1. Alpine Linux
2. Debian based distributions using apt-get (Ubuntu)
3. OpenSUSE
4. Red Hat based distributions using dnf/yum (Red Hat Enterprise Linux, CentOS, Fedora)

Requirements

No additional requirements are enforced other than an Ansbile version that supports the raw module. Development was done on Ansible 2.2+.

Role Variables

This role supports the following configurations via variables.

1. managed_node_bootstrap_use_sudo: Set this to yes if the host in question has sudo installed and you are connecting as a non-root user.
2. managed_node_bootstrap_cmd_prefix: This defaults to sudo if managed_node_bootstrap_use_sudo is set. You can override this to ensure this prefix is added to all executed commands.
3. managed_node_bootstrap_done_file: This specifies which file to use as an indicator if the bootstrap task was successfully executed before.
4. managed_node_packages_{alpine,debian,opensuse,redhat}: This is used to configure the list of packages to install for each of these distribution families.

Dependencies

No Dependencies rquired other than Ansible itself.

Example Playbook

Here is an example play that can be used to bootstrap all your hosts in your inventory. Note that ansible connection method etc. has to be configured external to this. Additionally, note that this requires connecting as a root user, since we assume sudo is not available on these instances (docker image assumption). See above for how to alter this behaviour.

---
- name: bootstrap ansible managed node
  hosts: all
  gather_facts: False
  roles:
    - abn.molecule-node-bootstrap

Testing

Before testing, you need to ensure that the submodules required have been cloned.

git submodule update --init --recursive

Local Environment

This role uses Molecule and docker instances to enable testing. You can run this locally on your development environment provided you have python installed and are running the docker daemon.

# install molecule and docker-py requirements
pip install -r test-requirements.txt
molecule test

This will as configured in the default molecule scenario, spin up containers of the supported distributions and execute a sample playbook.

Tox

This project also has tox configured to run against multiple ansible versions with Molecule. This can simply be run using tox.

tox

Refer to the Molecule documentation and tox documentation for advance usage instructions.

License

Apache License 2.0