[leoromanovsky]

Motivation

PHP customers using agentless flags also need exposure and evaluation-count delivery when no Datadog Agent is present. Activate the shared egress contracts for dd-trace-php #4489. This PR is stacked on #8475; merge the PHP implementation before relying on its development-version gate.

Changes

Enable exposures and evaluation counts in both the direct-intake and serverless-init scenarios from v1.28.0-dev, preserving the Laravel/Symfony test-app exclusions. Replace the file-wide evaluation-test exclusion with sibling-class exclusions so the two enabled classes actually run and unsupported cases keep their gates.

For the direct scenario, launch Apache or PHP-FPM in the foreground so the existing live topology assertion proves the application server owns PID 1 and no Agent or init wrapper is present. Extend the server-name contract with PHP and add controls rejecting shell, tail, and similarly named wrappers. The separate shutdown test remains disabled because the PHP app does not emit its required server-close marker.

Local Apache/PHP 8.2.35 validation used PHP 7aecaffffac9:

Scenario	Enabled results
FEATURE_FLAGGING_AND_EXPERIMENTATION_AGENTLESS_DIRECT	2 passed: exposures and evaluation counts
FEATURE_FLAGGING_AND_EXPERIMENTATION_AGENTLESS_SERVERLESS	2 passed: exposures and evaluation counts
FEATURE_FLAGGING_AND_EXPERIMENTATION_AGENTLESS_EXPLICIT	1 passed: CDN configuration

The installed extension SHA-256 was c86d733862228766c237d4df1e5e9ba61b71955ad1c03177c3b6d529d6fd4981. The local PHP build reports 1.27.0, so these runs used the supported -F override; 60 separate manifest checks verified effective activation across old/development versions and Apache, ZTS, FPM, Laravel, and Symfony variants. All unsupported evaluation classes remain gated. The 53 FFE harness tests and ./format.sh passed. These are local controlled-service results; PHP-FPM and staging were not exercised.

Workflow

1. ⚠️ Create your PR as draft ⚠️
2. Work on you PR until the CI passes
3. Mark it as ready for review
   • Tests, manifest, weblog are modified -> you'll need a review from system-tests-reviewers: ask to one of youre co-worker familiar with the tested feature.
   • Framework is modified, or non obvious usage of it -> get a review from system-tests-core (slack)

🚀 Once your PR is reviewed and the CI green, you can merge it!

🛟 #apm-shared-testing 🛟

[github-actions]

CODEOWNERS have been resolved as:

manifests/php.yml                                                       @DataDog/system-tests-reviewers
tests/ffe/utils/evp.py                                                  @DataDog/feature-flagging-and-experimentation-sdk
tests/test_the_test/test_ffe_tests.py                                   @DataDog/feature-flagging-and-experimentation-sdk
utils/_context/_scenarios/agentless_endtoend.py                         @DataDog/system-tests-core
utils/build/docker/php/apache-mod/entrypoint.sh                         @DataDog/system-tests-reviewers
utils/build/docker/php/php-fpm/entrypoint.sh                            @DataDog/system-tests-reviewers

[datadog-datadog-us1-prod]

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