Fixed grpcio version in requirements.txt

[samson0v]

No description provided.

[helsmore]

@samson0v It looks like the file you've changed, requirements.txt in the repo root directory, doesn't get used when building the Docker image (if I've understood the Docker build instructions in the TB docs correctly).

From https://thingsboard.io/docs/iot-gateway/install/docker-installation/#build-local-docker-image:

1. Copy thingsboard_gateway/ directory to docker/ directory.
2. Build the Docker image

It seems that because you only copy this single directory from the repo root the Docker build process will end up using docker/requirements.txt not requirements.txt, this would mean that the change you've just made would not apply to the Docker image build, is that not the case?

What do you think?

cc: @imbeacon

[helsmore]

In any case it appears there are some significant differences between requirements.txt and docker/requirements.txt. It's not clear why there's two different files, you could just delete docker/requirements.txt from the repo and copy requirements.txt at the same time as the thingsboard_gateway directory (whilst preparing for Docker build) unless there's some reason that you need different packages installed when running inside the Docker container compared to other deployment methods.

[helsmore]

@imbeacon @samson0v

Can you have a look at my comments above please? I think either the fix you made changed the wrong file or the docs are misleading.

Many thanks.

[samson0v]

@helsmore done.