NDES SCEP proxy backend

[getvictor]

#21955

Checklist for submitter

If some of the following don't apply, delete the relevant line.

• Changes file added for user-visible changes in changes/, orbit/changes/ or ee/fleetd-chrome/changes.
  See Changes files for more information.
• Input data is properly validated, SELECT * is avoided, SQL injection is prevented (using placeholders for values in statements)
• Added support on fleet's osquery simulator cmd/osquery-perf for new osquery data ingestion features.
• Added/updated tests
• If paths of existing endpoints are modified without backwards compatibility, checked the frontend/CLI for any necessary changes
• If database migrations are included, checked table schema to confirm autoupdate
• For database migrations:
  • Checked schema for all modified table for columns that will auto-update timestamps during migration.
  • Confirmed that updating the timestamps is acceptable, and will not cause unwanted side effects.
  • Ensured the correct collation is explicitly set for character columns (COLLATE utf8mb4_unicode_ci).
• Manual QA for all new/changed functionality
• For Orbit and Fleet Desktop changes:
  • Orbit runs on macOS, Linux and Windows. Check if the orbit feature/bugfix should only apply to one platform (runtime.GOOS).
  • Manual QA must be performed in the three main OSs, macOS, Windows and Linux.
  • Auto-update manual QA, from released version of component to new version (see tools/tuf/test).

[codecov]

Codecov Report

Attention: Patch coverage is 23.78049% with 125 lines in your changes missing coverage. Please review.

Project coverage is 55.59%. Comparing base (cfd4159) to head (feeb5b2).
Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
server/mdm/scep/server/transport.go	0.00%	34 Missing ⚠️
ee/server/service/scep_proxy.go	48.07%	24 Missing and 3 partials ⚠️
server/mdm/scep/server/endpoint.go	0.00%	19 Missing ⚠️
server/service/appconfig.go	9.52%	18 Missing and 1 partial ⚠️
server/service/handler.go	0.00%	12 Missing ⚠️
server/datastore/mysql/app_configs.go	52.17%	10 Missing and 1 partial ⚠️
cmd/fleet/serve.go	0.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #22542      +/-   ##
==========================================
- Coverage   65.10%   55.59%   -9.51%     
==========================================
  Files        1496     1497       +1     
  Lines      117001   117188     +187     
  Branches     3571     3571              
==========================================
- Hits        76169    65150   -11019     
- Misses      33744    45797   +12053     
+ Partials     7088     6241     -847     

Flag	Coverage Δ
backend	55.80% <23.78%> (-10.57%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.