Python library for Juju
Project description
Source code: https://github.com/juju/python-libjuju
Bug reports: https://github.com/juju/python-libjuju/issues
Documentation: https://pythonhosted.org/juju/
Requirements
Python 3.5+
Juju 2.0+
Design Notes
Asynchronous - uses asyncio and async/await features of python 3.5
Websocket-level bindings are programmatically generated (indirectly) from the Juju golang code, ensuring full api coverage
Provides an OO layer which encapsulates much of the websocket api and provides familiar nouns and verbs (e.g. Model.deploy(), Application.add_unit(), etc.)
Installation
pip install jujuQuickstart
Here’s a simple example that shows basic usage of the library. The example connects to the currently active Juju model, deploys a single unit of the ubuntu charm, then exits.
More examples can be found in the examples/ directory of the source tree, and in the documentation.
#!/usr/bin/python3.5
import asyncio
import logging
from juju.model import Model
async def run():
# Create a Model instance. We need to connect our Model to a Juju api
# server before we can use it.
model = Model()
# Connect to the currently active Juju model
await model.connect_current()
# Deploy a single unit of the ubuntu charm, using revision 0 from the
# stable channel of the Charm Store.
ubuntu_app = await model.deploy(
'ubuntu-0',
application_name='ubuntu',
series='xenial',
channel='stable',
)
# Disconnect from the api server and cleanup.
model.disconnect()
# Stop the asyncio event loop.
model.loop.stop()
def main():
# Set logging level to debug so we can see verbose output from the
# juju library.
logging.basicConfig(level=logging.DEBUG)
# Quiet logging from the websocket library. If you want to see
# everything sent over the wire, set this to DEBUG.
ws_logger = logging.getLogger('websockets.protocol')
ws_logger.setLevel(logging.INFO)
# Create the asyncio event loop
loop = asyncio.get_event_loop()
# Queue up our `run()` coroutine for execution
loop.create_task(run())
# Start the event loop
loop.run_forever()
if __name__ == '__main__':
main()Release history Release notifications | RSS feed
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