lantz/faucetagent

gNMI agent for faucet configuration

FAUCET gNMI Configuration Agent

This agent exposes a simple gNMI service to configure FAUCET. Requires FAUCET version 1.9.3 or later.

For now, it simply allows you to get or replace the entire FAUCET configuration file (e.g. faucet.yaml) via gNMI path /.

Starting up the agent

./faucetagent.py --cert agent.crt --key agent.key \
   --configfile /etc/faucet.yaml  >& faucetagent.log &

Talking to the agent using gnxi

# TLS authentication (client auth is ignored by agent atm)
AUTH="-ca ca.crt -cert client.crt -key client.key -target_name localhost"

# Extract string_val from gnmi_get output
string_val() { grep string_val: | awk -F 'string_val: "' '{printf $2;}'  |
               sed -e 's/"$//' | xargs -0 printf; }

# Fetch information about configuration schema
gnmi_capabilities $AUTH

# Fetch current configuration
gnmi_get $AUTH -xpath=/ | string_val

# Send a configuration file to FAUCET
gnmi_set $AUTH -replace=/:"$(<faucet.yaml)"

Simple end-to-end test using mininet

./dependencies.sh
./test-dependencies.sh
make
sudo make test