Move internal wiki page "Subscribe to Notifications" next to tools/notification-configuration

[konrad-jamrozik]

This PR adds a README.md file to tools/notification-configuration.

This README most notably just points to the wiki article describing the feature that is implemented by the sources in the directory to which the README was added, i.e.:
https://dev.azure.com/azure-sdk/internal/_wiki/wikis/internal.wiki/63/Subscribe-to-Notifications

As accompanying change to this PR, I made several updates to the doc hyperlinked from the README. You can find the full diff of my wiki changes here.

[konrad-jamrozik]

@weshaggard @hallipr I have few questions:

Q1. How is this tool being used?
https://github.com/Azure/azure-sdk-tools/blob/main/tools/notification-configuration/github-codeowner-subscriber/Program.cs

I see there is a package for it:
https://dev.azure.com/azure-sdk/internal/_artifacts/feed/azure-sdk-for-net/NuGet/Azure.Sdk.Tools.GithubCodeownerSubscriber/1.0.0-dev.20221129.1

but I didn't find any other mentions of it. Is this package still relevant? How is it supposed to be used?

Q2. In the README I added, I added a reference to our internal wiki, which I am not sure makes sense, given this is a public repo. But then again, if the tool is public, shouldn't the doc for it also be public?

[weshaggard]

Q1: It is used in https://github.com/Azure/azure-sdk-tools/blob/main/eng/pipelines/notifications.yml which is a pipeline we run daily at https://dev.azure.com/azure-sdk/internal/_build?definitionId=679

Q2: We try to avoid linking to our internal wiki from public repos (link from our internal wiki to public repo where needed), but there are some exceptions to that rule. As a general rule try to document everything in the open repo and we only keep things internal if there is something sensitive. So for this tool I suspect we can move things out here.

[konrad-jamrozik]

Q1: It is used in https://github.com/Azure/azure-sdk-tools/blob/main/eng/pipelines/notifications.yml which is a pipeline we run daily at https://dev.azure.com/azure-sdk/internal/_build?definitionId=679

@weshaggard I am sorry if I am being dense, but I see only usages of notification-creator (aka notification-configurator) but not of github-codeowner-subscriber (Azure.Sdk.Tools.GithubCodeownerSubscriber). Basically I cannot find any usages of this method: Azure.Sdk.Tools.GithubCodeownerSubscriber.Program.Main.

Can you point me to the line in notifications.yml that uses it? I believe the call to noification-creator executes Azure.Sdk.Tools.NotificationConfiguration.Program.Main and not Azure.Sdk.Tools.GithubCodeownerSubscriber.Program.Main.

[weshaggard]

Basically I cannot find any usages of this method: Azure.Sdk.Tools.GithubCodeownerSubscriber.Program.Main.

Sorry I think I misunderstood your question. It is possible that might not be used any longer. @sima-zhu do you know if we use that tool for anything anymore?

[sima-zhu]

Basically I cannot find any usages of this method: Azure.Sdk.Tools.GithubCodeownerSubscriber.Program.Main.

Sorry I think I misunderstood your question. It is possible that might not be used any longer. @sima-zhu do you know if we use that tool for anything anymore?

We merged this step together with notification creator, so it is no longer in use. Thanks @konrad-jamrozik for bringing this up! Created a work item for the cleanup.

[weshaggard]

Feel free to gradually move the content out to the README.md