Updates Doppler health check to include interface state
#!/bin/bash
# Use doppler's port
-lsof -i ':<%= p("doppler.grpc_port") %>'
+lsof -i ':<%= p("doppler.grpc_port") %>' -s TCP:LISTEN
# http://www.consul.io/docs/agent/checks.html
if [ $? -ne 0 ]; then
