A local cluster can be setup via --> https://lyft.github.io/flyte/administrator/install/getting_started.html#getting-started
Then, if having trouble connecting to local cluster see the following:
#1) Find/Set/Verify gRPC port for your local Flyte service:
FLYTECTL_GRPC_PORT=kubectl get service -n flyte flyteadmin -o json | jq '.spec.ports[] | select(.name=="grpc").port'
#2) Setup Port forwarding: kubectl port-forward -n flyte service/flyteadmin 8081:$FLYTECTL_GRPC_PORT
and #3) Update config line in https://github.com/lyft/flytectl/blob/master/config.yaml to dns:///localhost:8081