Can we use httpd on the base stack?

[ryanmoran]

Summary

The HTTPD dependency that this buildpack installs appears to be unable to run on the base stack. Can we complete an exploration to determine why we cannot run this on base and if it might be reasonable for us to get this to run on base?

[TisVictress]

@ryanmoran Adding libexpat1 to mixins for the base stack seems to work. I didn't see that any other package was required to get the httpd integration test to work (unless I'm missing something). I created this draft pull-request for the stacks repo. And here's a draft for the base-builder.

If we want to add support for the php-httpd use case, we'll need to add the following: libargon2-0, libcurl4, libedit2, libgd3, libmagickwand-6.q16-3, libonig4, libxml2

Should I update the stacks PR to include these as well?

[ryanmoran]

No need for the extra dependencies to support php-httpd since the PHP buildpack isn't supported on Base.

[TisVictress]

libexpat1 is added to both build and run for symmetry.
The difference between the sizes of the build and run images after including libexpat1 is negligible:

	w/ libexpat1	w/o libexpat1
Run	88.996 MB	88.595 MB
Build	326.075 MB	326.101 MB

[TisVictress]

The PR for the base builder: https://github.com/paketo-buildpacks/base-builder/pull/485/files

[TisVictress]

Closing. This was resolved when the PR to base-builder was merged.