77 lines
2.7 KiB
Markdown
77 lines
2.7 KiB
Markdown
# drydock_provisioner
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A python REST orchestrator to translate a YAML host topology to a provisioned
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set of hosts and provide a set of post-provisioning instructions.
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See full documentation at [https://airship-drydock.readthedocs.io/](https://airship-drydock.readthedocs.io/).
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## Required
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* Python 3.5+
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* A running instance of Postgres v9.5+
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* A running instance of Openstack Keystone w/ the v3 API enabled
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* A running instance of Canonical MaaS v2.3+
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## Recommended
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* A running Kubernetes cluster with Helm initialized
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* Familiarity with the Airship platform suite of services
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## Building
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This service is intended to be built as a Docker container, not as a
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standalone Python package. That being said, instructions are included below
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for building as a package and as an image.
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### Virtualenv
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To build and install Drydock locally in a virtualenv first generate configuration
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and policy file templates to be customized
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$ tox -e genconfig
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$ tox -e genpolicy
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$ virtualenv -p python3.5 /var/tmp/drydock
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$ . /var/tmp/drydock/bin/activate
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$ pip install -r requirements-lock.txt
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$ pip install .
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$ cp -r etc/drydock /etc/drydock
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### Docker image
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$ docker build . -t drydock
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## Running
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The preferred deployment pattern of Drydock is via a Helm chart
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to deploy Drydock into a Kubernetes cluster. Additionally use of
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the rest of the Airship services provides additional functionality
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for deploying (Armada) and using (Promenade, Deckhand) Drydock.
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You can see an example of a full Airship deployment in the [Airship in a Bottle](https://github.com/openstack/airship-in-a-bottle) repository.
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### Stand up Kubernetes
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Use the Airship [Promenade](https://github.com/openstack/airship-promenade)
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tool for starting a self-hosted Kubernetes cluster with Kubernetes
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Helm deployed.
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### Deploy Drydock Dependencies
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There are Helm charts for deploying all the dependencies of Dryodck.
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Use them for preparing your Kuberentes cluster to host Drydock.
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* [Postgres](https://github.com/openstack/openstack-helm/tree/master/postgresql)
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* [Keystone](https://github.com/openstack/openstack-helm/tree/master/keystone)
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* [MAAS](https://github.com/openstack/airship-maas)
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### Deploy Drydock
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Ideally you will use the Airship [Armada](https://airship-armada.readthedocs.io)
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tool for deploying the Drydock chart with proper overrides, but if not you can
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use the `helm` CLI tool. The below are overrides needed during deployment
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* values.labels.node_selector_key: This is the kubernetes label assigned to the node you expect to host Drydock
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* values.conf.dryodck.maasdriver: This is URL Drydock will use to access the MAAS API (including the URL path)
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* values.images.drydock: The Drydock docker image to use
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* values.images.drydock_db_sync: The Drydock docker image to use
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