WARNING: This repository has been replaced with a kubernetes version stored in OasisPlatform/kubernetes/worker-controller

Oasis worker controller

This is an example of how you can control workers in your oasis deployment.

The process connects to the websocket in the api and monitors it for changes in the queue utilization.

In this example we monitor the socket and as the number of queued tasks increase we create a new container to process that queue. When the number of queues and pending tasks decrease the task worker containers are stopped.

Installation

Running the controller requires docker compose:

$ pip install docker-compose

Building the image

You can build the image using:

$ docker-compose build

Running the controller

The docker compose config takes a set of local environment variables and passes them into the controller. These are:

Name	Description	Default
OASIS_API_HOST	The hostname and port of the oasisi api endpoint	localhost:8000
OASIS_BROKER_URL	The url for the celery broker	amqp://rabbit:rabbit@localhost:5672
OASIS_ADMIN_USER	The username of the user to use for authentication against the api	admin
OASIS_ADMIN_PASS	The password of the user to use for authentication against the api	password
DOCKER_SOCKET_LOCATION	The location of the docker socket to mount in the container	/var/run/docker.sock
OASIS_MODEL_DATA_DIR	The absolute path to the PiWind data on the host machine
OASIS_MEDIA_ROOT	The absolute path to the shared filesystem on the host machine

The docker container created by docker-compose and the created containers will be on the host network so any reference to localhost will refer to the host machine.

License

The code in this project is licensed under BSD 3-clause license.