11034 extend configuration

[mklenbw]

Adds a new method in serverless-object for extending the internal configuration. This method extends variablesMeta with the newly added and parsed configuration.

VariablesMeta is now exposed via serverless-object.

Addresses the issue discussed in #11034.

Closes: #11034

[medikoo]

@mklenbw thank you, that looks outstanding! We're on a very good track, please see my comments

[medikoo]

@mklenbw great thanks for the update!

[mklenbw]

@medikoo
Got the fixtures in place. It's slow, complex and hard to debug, but it works.
Managed to find some errors in script/serverless this way. Wasn't the worst idea to do this.

[medikoo]

@mklenbw that looks really good! We're getting close. Please see my comments

[mklenbw]

@medikoo
please recheck your comments.

[medikoo]

Thank you @mklenbw!

[mklenbw]

@medikoo
Done with your comments. Please review again.

[medikoo]

@mklenbw that looks really good.

What we miss is documentation. Can you add a Extending configuration section here: https://github.com/serverless/serverless/tree/main/docs/guides/plugins and document shortly the new feature?

[mklenbw]

@mklenbw that looks really good.

What we miss is documentation. Can you add a Extending configuration section here: https://github.com/serverless/serverless/tree/main/docs/guides/plugins and document shortly the new feature?

There is already a section named "Extending the configuration". How do you want it to be named?

[medikoo]

There is already a section named "Extending the configuration". How do you want it to be named?

@mklenbw that is a good point. Actually, I think we should rename the current "Extending the configuration" section into "Extending the configuration schema", and add new section "Extending and overriding configuration".

[mklenbw]

@medikoo
please review the documentation page. i don't know if you use any tool for this as there are autogenerated parts in each file

[medikoo]

@mklenbw sorry for late review. That looks great! I have just final suggestion for documentation and we should be good

[mklenbw]

@mklenbw sorry for late review. That looks great! I have just final suggestion for documentation and we should be good

Done. Thanks. Looking forward to use this feature in official version.

[medikoo]

Thank you @mklenbw That's outstanding contribution!