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OpenStack Configuration

This project contains Ansible playbooks and configuration of infrastructure on an existing OpenStack cloud for the OpenStack system.

Preparation

Ensure that Ansible is installed, either via the system package manager or pip. It is recommended that you use a python virtual environment to avoid interference with the system python packages. For example:

$ python3 -m venv openstack-venv
$ source openstack-venv/bin/activate
$ python -m pip install --upgrade pip
$ pip install -r requirements.txt

Install Ansible role and collection dependencies from Ansible Galaxy:

$ ansible-galaxy collection install \
    -p ansible/collections \
    -r requirements.yml

Configuration

Configuration should be added to etc/openstack-config/openstack-config.yml. Examples are provided in the examples directory.

Usage

First, ensure that OpenStack authentication environment variables are set, typically by sourcing an OpenStack environment file. If a Kayobe environment was already configured, you can use the following command:

$ source ${KOLLA_CONFIG_PATH}/public-openrc.sh

If any Ansible variable is encrypted with Ansible Vault, make sure the ANSIBLE_VAULT_PASSWORD_FILE environment variable is set:

$ export ANSIBLE_VAULT_PASSWORD_FILE=<path-to-vault-password-file>

To configure OpenStack infrastructure:

$ tools/openstack-config

To run a specific playbook:

$ tools/openstack-config -p </path/to/playbook>

To specify additional arguments to ansible-playbook, separate them with a double hyphen (--):

$ tools/openstack-config -- <arguments>

For example, a vault secret stored as a file can be passed as an extra configuration parameter:

$ tools/openstack-config -- --vault-password-file config-secret.vault

Magnum Cluster Templates

To generate a new set of Magnum cluster templates and corresponding Glance image definitions which utilise the latest stable upstream release tag, set the following variables in etc/openstack-config.yml

# Chosen flavor on target cloud
magnum_default_master_flavor_name:
# Chosen flavor on target cloud
magnum_default_worker_flavor_name:
# External network to use for load balancers etc.
magnum_external_net_name:
# Octavia provider (e.g. 'ovn')
magnum_loadbalancer_provider:
# Optional list of extra labels to add to all generated cluster templates
magnum_template_extra_labels:

then run the provided playbook with

$ tools/openstack-config -p ansible/generate-magnum-capi-templates.yml

This will create a generated-magnum-snippets directory in the repo root with a timestamped sub-directory containing an images.yml file and a templates.yml file. The contents of these two files can then be added to any existing images and cluster templates in etc/openstack-config.yml. When deploying the updated config, be sure to run the openstack-images.yml playbook before running the openstack-container-clusters.yml playbook, otherwise the Magnum API will return an error referencing an invalid cluster type with image None. This is handled automatically if running the full openstack.yml playbook.