TNN CLI runtime error when configuring (installed via snap)

[Kostas-F]

Summary

When trying to configure ttn-lw-cli with the EU1 regional cluster of the things stack community edition it results in a runtime error when generating the configuration file. In the step of setting identity server gRPC address in particular.

I installed via snap on xUbuntu 20.04.

When using the binaries from here the configuration file is produced as expected.

Steps to Reproduce

Run the following on ubuntu 20.04:

1. sudo snap install ttn-lw-stack
2. sudo snap alias ttn-lw-stack.ttn-lw-cli ttn-lw-cli
3. ttn-lw-cli use eu1.cloud.thethings.network

Current Result

Produces the runtime error as pasted in the relevant logs.

Expected Result

The config file is produced.

Relevant Logs

INFO    Telemetry is enabled. Check the documentation for more information on what is collected and how to disable it   {"documentation_url": "https://www.thethingsindustries.com/docs/reference/telemetry/cli"}
INFO    Configuring for The Things Stack Community Edition  {"cluster_id": "eu1"}
INFO    Set OAuth Server address    {"address": "https://eu1.cloud.thethings.network/oauth"}
INFO    Set Identity Server gRPC address    {"address": "eu1.cloud.thethings.network:8884"}
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x10 pc=0x1d51edd]

goroutine 39 [running]:
go.thethings.network/lorawan-stack/v3/pkg/telemetry/exporter/cli.(*cliTask).Run(0xc000a5a000, {0x289a2c8?, 0xc000a12db0?})
    /home/runner/work/lorawan-stack/lorawan-stack/pkg/telemetry/exporter/cli/cli.go:171 +0xfd
go.thethings.network/lorawan-stack/v3/cmd/ttn-lw-cli/commands.preRun.func1.2({0x289a2c8, 0xc000a12db0})
    /home/runner/work/lorawan-stack/lorawan-stack/cmd/ttn-lw-cli/commands/root.go:184 +0x145
created by go.thethings.network/lorawan-stack/v3/cmd/ttn-lw-cli/commands.preRun.func1
    /home/runner/work/lorawan-stack/lorawan-stack/cmd/ttn-lw-cli/commands/root.go:180 +0x574

URL

No response

Deployment

The Things Stack Community Edition

The Things Stack Version

3.27.2

Client Name and Version

Using the cli ttn-lw-cli 3.27.2 on Ubuntu 20.04

Other Information

The binaries as provided here and specifically lorawan-stack-cli_3.27.2_linux_amd64 did not result in the same error.

Proposed Fix

No response

Contributing

• [X] I can help by doing more research.
• [ ] I can help by implementing a fix after the proposal above is approved.
• [ ] I can help by testing the fix before it's released.

Code of Conduct

• [X] I agree to follow TTN's Community Code of Conduct.

[KrishnaIyer]

Thanks @Kostas-F for filing the issue. We are working on a fix for this.

[Kostas-F]

Thanks @Kostas-F for filing the issue. We are working on a fix for this.

No problem. If anymore info/testing that I could help with would be usefull let me know.