In order to run Droplet, whether in local mode or in cluster mode, the Droplet runtime requires a copy of the Anna KVS to be running. Both Droplet and Anna can be run with limited capabilities on a single machine. You can find documentation on running Anna in local mode here. The rest of this document assumes that Anna is already running in local mode on your machine.
Droplet currently only supports Python3. To install Python dependencies, simply run pip install -r requiments.txt from the Droplet source directory.
Before running Droplet, we need to compile its Protobufs locally to generate the Python dependency files. scripts/build.sh automatically does this for you and installs them in the correct location, but it requires having the protoc tool installed. If you need to remove the locally compiled protobufs, you can run bash scripts/clean.sh.
Finally, Droplet requires access to the Anna Python client, which is in the Anna KVS repository. A default script to clone the Anna repository and install the client (the client is not currently pip-installable) can be found in scripts/install-anna.sh. You can customize the installation location by adding the --prefix flag to the setup.py command.
Once all the protobufs have been compiled, scripts/start-droplet-local.sh will start a local Droplet server. You can stop these processes with scripts/stop-droplet-local.sh. For more information on how to interact with Droplet once it is running, see the function execution docs.