lyft flyte errors on startup following docs? - flyte

Question

Getting the follow running the example from the docs. Anyone have ideas why?
Looks like gprc. Maybe this is related? https://github.com/grpc/grpc/issues/15933
docker run --network host -e FLYTE_PLATFORM_URL='127.0.0.1:30081' lyft/flytesnacks:v0.1.0 pyflyte -p flytesnacks -d development -c sandbox.config register workflows
Using configuration file at /app/sandbox.config
Flyte Admin URL 127.0.0.1:30081
Running task, workflow, and launch plan registration for flytesnacks, development, ['workflows'] with version 46045e6383611da1cb763d64d846508806fce1a4
Registering Task: workflows.edges.edge_detection_canny
Traceback (most recent call last):
File "/app/venv/bin/pyflyte", line 11, in <module>
sys.exit(main())
File "/app/venv/lib/python3.6/site-packages/click/core.py", line 764, in __call__
return self.main(*args, **kwargs)
File "/app/venv/lib/python3.6/site-packages/click/core.py", line 717, in main
rv = self.invoke(ctx)
File "/app/venv/lib/python3.6/site-packages/click/core.py", line 1137, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "/app/venv/lib/python3.6/site-packages/click/core.py", line 1137, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "/app/venv/lib/python3.6/site-packages/click/core.py", line 956, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "/app/venv/lib/python3.6/site-packages/click/core.py", line 555, in invoke
return callback(*args, **kwargs)
File "/app/venv/lib/python3.6/site-packages/click/decorators.py", line 17, in new_func
return f(get_current_context(), *args, **kwargs)
File "/app/venv/lib/python3.6/site-packages/flytekit/clis/sdk_in_container/register.py", line 86, in workflows
register_all(project, domain, pkgs, test, version)
File "/app/venv/lib/python3.6/site-packages/flytekit/clis/sdk_in_container/register.py", line 24, in register_all
o.register(project, domain, name, version)
File "/app/venv/lib/python3.6/site-packages/flytekit/common/exceptions/scopes.py", line 158, in system_entry_point
return wrapped(*args, **kwargs)
File "/app/venv/lib/python3.6/site-packages/flytekit/common/tasks/task.py", line 141, in register
_engine_loader.get_engine().get_task(self).register(id_to_register)
File "/app/venv/lib/python3.6/site-packages/flytekit/engines/flyte/engine.py", line 234, in register
self.sdk_task
File "/app/venv/lib/python3.6/site-packages/flytekit/clients/friendly.py", line 50, in create_task
spec=task_spec.to_flyte_idl()
File "/app/venv/lib/python3.6/site-packages/flytekit/clients/raw.py", line 12, in handler
return fn(*args, **kwargs)
File "/app/venv/lib/python3.6/site-packages/flytekit/clients/raw.py", line 77, in create_task
return self._stub.CreateTask(task_create_request)
File "/app/venv/lib/python3.6/site-packages/grpc/_channel.py", line 604, in __call__
return _end_unary_response_blocking(state, call, False, None)
File "/app/venv/lib/python3.6/site-packages/grpc/_channel.py", line 506, in _end_unary_response_blocking
raise _Rendezvous(state, None, None, deadline)
grpc._channel._Rendezvous: <_Rendezvous of RPC that terminated with:
status = StatusCode.UNAVAILABLE
details = "failed to connect to all addresses"
debug_error_string = "{"created":"#1578482148.715995870","description":"Failed to pick subchannel","file":"src/core/ext/filters/client_channel/client_channel.cc","file_line":3876,"referenced_errors":[{"created":"#1578482148.715993301","description":"failed to connect to all addresses","file":"src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.cc","file_line":395,"grpc_status":14}]}"

Answer 1

I think the problem is in FLYTE_PLATFORM_URL='127.0.0.1:30081'.Minikube runs in VM on OSX.
When you run docker run --network host, the docker daemon shares the networking namespace with this host - https://docs.docker.com/network/host/
Thus if you have the docker daemon and Kubernetes running on the same host (not a VM), you should be able to refer to services (nodeport) or ingress on Kubernetes using 127.0.0.1.
But, since minikube runs in a VM on osx, you will need to use minikube ip to find the ip address of the minikube machine and then set
FLYTE_PLATFORM_URL=':30081'