Add documentation for spring.profiles.include

[duskox]

Spring Profiles documentation.

At this link , where docs for latest 2.5.6 version are, there is no mention of spring.profiles.include while at the link from a previous version, there is a reference to that.

Now I am not sure if this is a documentation issue, or this feature is deprecated? I believe it still works in our project so wondering why it's missing from docs?

Sorry if this is not an issue.

[wilkinsona]

Config file processing was overhauled in 2.4, as described in the release notes. While spring.profiles.include is still supported, it can no longer be used in a profile-specific configuration file. The migration guide that's linked to from the release notes provides some more information.

In short, profile groups are now preferred over spring.profiles.include. That said, we may have de-emphasised spring.profiles.include a little too much. It is still documented as a configuration property but that's it at the moment. I'll flag this for team attention so that we can discuss adding something to the section on adding active profiles.

[snicoll]

Yeah, I think it makes sense to keep a reference to it, in particular with what the note in the migration guide states.