Add "features" command to print documentation about all features

[yurishkuro]

See this issue open-telemetry/opentelemetry-collector#11998

[ADI-ROXX]

Can you explain how I can duplicate the problem that is being faced?

[yurishkuro]

What specifically is not clear from the linked issue?

[ADI-ROXX]

In the above image, the output that is being talked about, what command do I have to run to see that output on my terminal screen? Once I know this, it will be comparatively easy for me to make the necessary changes.

[yurishkuro]

you can run go run ./cmd/jaeger help

[Lymah123]

Has the issue been taken?

[ADI-ROXX]

@Lymah123 I am currently working on it

[ADI-ROXX]

@yurishkuro The linked PR solves the issue of alignment of the flags but not of the metadata. I have found an approach to solve the issue.

Among the following attributes of a gate, what all shall be displayed in the metadata?

Also, shall I show a gate only if it is enabled, or shall I show the gate no matter whether it is enabled or disabled?

[yurishkuro]

@ADI-ROXX

• first, the request was to add a sub-command, not a top level command
• the request was to add it in OTEL Collector, but it's ok to do it in Jaeger first and then add the same to Collector (the code would be the same)
• everything in the metadata screenshot should be included
• all features must be listed, regardless of their state.

[ADI-ROXX]

first, the request was to add a sub-command, not a top level command

Understood.

the request was to add it in OTEL Collector, but it's ok to do it in Jaeger first and then add the same to Collector (the code would be the same)

Can an issue be opened in OTEL and assigned to me for issuing a PR?

[yurishkuro]

Can an issue be opened in OTEL and assigned to me for issuing a PR?

it's already in the description

[ADI-ROXX]

@yurishkuro I have added a package in ./cmd/jaeger for printing the features. However, the build is failing. I am not able to understand the reason for the same. Can you help me with this?

[ADI-ROXX]

@yurishkuro Following is the output:

Do I have to make any change in the format?

[yurishkuro]

I would remove the numbers. I would move default state (on/off) to a separate line, not as prefix. I would remove versions because they look confusing (some refer to OTEL version, others to jaeger version).