chore: Add info.php to show Tier 🦭

[darcywong00]

Relates to keymanapp/keyman.com#403

verify TIER on k8s (_control/info.php as used on other sites)

Note, the autoload.php here doesn't register a namespace ^Keyman\\\\Site\\\\com\\\\keyman\\\\s\\\\(.+)...

[mcdurdin]

Almost LGTM.

I am not keen on adding more php code to s.keyman.com, because this site is intended to be completely static. This leads us down a difficult path to dig out of if we want to put this on a formal CDN in the future... This is particularly true if we start depending on the _common files, which shouldn't be on s.keyman.com at all if possible.

Is it possible to just have _control/info.php which reads the tier directly? I know it means code duplication but it avoids introducing dependencies that will make our life hard.

Remember that we are removing the other .php deployment-related code in staging in the future, and hopefully will remove the kmwversion.php one day as well.

[darcywong00]

This is particularly true if we start depending on the _common files, which shouldn't be on s.keyman.com at all if possible.

I think currently boostrap_configure is pulling the entire _common/ folder which includes .sh and .php files. Are you saying you'd like to avoid using _common/*.php files (e.g. _common/KeymanHosts.php)?

Is it possible to just have _control/info.php which reads the tier directly?

I think I could copy these lines into info.php
https://github.com/keymanapp/shared-sites/blob/bcc0f472439a0b3d03541aaf46004351f495d35d/_common/KeymanHosts.php#L83-L93

[mcdurdin]

I think currently boostrap_configure is pulling the entire _common/ folder which includes .sh and .php files. Are you saying you'd like to avoid using _common/*.php files (e.g. _common/KeymanHosts.php)?

Yes, it's okay if those files are being pulled in for now. I'd just like to avoid building a dependency on them. (So those files are effectively ignored and irrelevant; in fact we could have a bootstrap mode that doesn't pull in _common)

I think I could copy these lines into info.php
https://github.com/keymanapp/shared-sites/blob/bcc0f472439a0b3d03541aaf46004351f495d35d/_common/KeymanHosts.php#L83-L93

Yes, sounds good.