Supports more specific plan combinations for PHP + web servers

[pivotal-david-osullivan]

Summary

When used with the PHP buildpack and HTTPD as the webserver, the httpd/apache agent is installed instead of PHP.
To support this combination, as well as PHP + nginx, new plan entries for these combinations have been added.

Use Cases

Tested Paketo PHP sample with both nginx and httpd as the server, both download the PHP agent

[builder] Paketo Buildpack for Dynatrace 11.0.0
[builder]   https://github.com/paketo-buildpacks/dynatrace
[builder]   Dynatrace OneAgent 1.291.121.20240531-083741: Contributing to layer
[builder]   Warning: Dependency has no SHA256. Skipping cache.
[builder]     Downloading from https://<url>.live.dynatrace.com/api/v1/deployment/installer/agent/unix/paas/latest?bitness=64&skipMetadata=true&arch=x86&include=php
[builder]     Expanding to /layers/paketo-buildpacks_dynatrace/dynatrace-oneagent
[builder]     Writing env.launch/BPI_DYNATRACE_BUILDPACK_ID.default
[builder]     Writing env.launch/BPI_DYNATRACE_BUILDPACK_VERSION.default
[builder]     Writing env.launch/DT_CUSTOM_PROP.append
[builder]     Writing env.launch/DT_CUSTOM_PROP.delim
[builder]     Writing env.launch/DT_LOGSTREAM.default
[builder]     Writing env.launch/LD_PRELOAD.delim
[builder]     Writing env.launch/LD_PRELOAD.prepend
[builder]   Launch Helper: Contributing to layer
[builder]     Creating /layers/paketo-buildpacks_dynatrace/helper/exec.d/properties`

Checklist

• I have viewed, signed, and submitted the Contributor License Agreement.
• I have linked issue(s) that this PR should close using keywords or the Github UI (See docs)
• I have added an integration test, if necessary.
• I have reviewed the styleguide for guidance on my code quality.
• I'm happy with the commit history on this PR (I have rebased/squashed as needed).

[anthonydahanne]

Hello @dmikusa !
I've reviewed and tested this work from @pivotal-david-osullivan

Test context

~/workspaces/paketo-buildpacks/samples/php/httpd main* 12s ❯ tree 
.
├── README.md
├── bindings
│   └── Dynatrace
│       ├── api-token
│       ├── environment-id
│       └── type
├── htdocs
│   └── index.php
└── project.toml

Before

pack build php-httpd-sample --volume "/Users/anthonyd2/workspaces/paketo-buildpacks/samples/php/httpd/bindings:/bindings" --env SERVICE_BINDING_ROOT=/bindings  --buildpack paketo-buildpacks/php -b paketobuildpacks/dynatrace:latest --builder paketobuildpacks/builder-jammy-full
[...]
===> DETECTING
target distro name/version labels not found, reading /etc/os-release file
7 of 15 buildpacks participating
paketo-buildpacks/ca-certificates 3.8.0
paketo-buildpacks/php-dist        2.3.7
paketo-buildpacks/httpd           0.7.19
paketo-buildpacks/php-fpm         0.2.31
paketo-buildpacks/php-httpd       0.3.27
paketo-buildpacks/php-start       0.4.27
paketo-buildpacks/dynatrace       5.8.0
[...]
Paketo Buildpack for Dynatrace 5.8.0
  https://github.com/paketo-buildpacks/dynatrace
  Dynatrace OneAgent 1.291.121.20240531-083741: Contributing to layer
  Warning: Dependency has no SHA256. Skipping cache.
    Downloading from https://neh11396.live.dynatrace.com/api/v1/deployment/installer/agent/unix/paas/latest?bitness=64&skipMetadata=true&arch=x86&include=apache
[...]
Successfully built image php-httpd-sample

You can notice it downloaded the apache flavor of the agent, not the php one

docker run --volume "/Users/anthonyd2/workspaces/paketo-buildpacks/samples/php/httpd/bindings:/bindings" --env SERVICE_BINDING_ROOT=/bindings --env PORT=9999 -p 9999:9999  -it php-httpd-sample

Configuring Dynatrace properties
[21-Jun-2024 18:16:13] NOTICE: PHP message: PHP Warning:  PHP Startup: Dynatrace Bootstrap Agent (failed, see agent log for details): Unable to initialize module
Module compiled with module API=0
PHP    compiled with module API=20210902
These options need to match
 in Unknown on line 0

[...]

and it fails because the image does not have the proper agent

After

pack build php-httpd-sample --volume "/Users/anthonyd2/workspaces/paketo-buildpacks/samples/php/httpd/bindings:/bindings" 
--env SERVICE_BINDING_ROOT=/bindings  --buildpack paketo-buildpacks/php -b /Users/anthonyd2/workspaces/paketo-buildpacks/dynatrace/linux/amd64 --builder paketobuildpacks/builder-jammy-full
[...]
===> DETECTING
target distro name/version labels not found, reading /etc/os-release file
7 of 15 buildpacks participating
paketo-buildpacks/ca-certificates 3.8.0
paketo-buildpacks/php-dist        2.3.7
paketo-buildpacks/httpd           0.7.19
paketo-buildpacks/php-fpm         0.2.31
paketo-buildpacks/php-httpd       0.3.27
paketo-buildpacks/php-start       0.4.27
paketo-buildpacks/dynatrace       {{.version}}
[...]
Paketo Buildpack for Dynatrace {{.version}}
  https://github.com/paketo-buildpacks/dynatrace
  Dynatrace OneAgent 1.291.121.20240531-083741: Contributing to layer
  Warning: Dependency has no SHA256. Skipping cache.
    Downloading from https://neh11396.live.dynatrace.com/api/v1/deployment/installer/agent/unix/paas/latest?bitness=64&skipMetadata=true&arch=x86&include=php
[...]
Successfully built image php-httpd-sample

You can notice it downloaded the php flavor of the agent, as expected.

docker run --volume "/Users/anthonyd2/workspaces/paketo-buildpacks/samples/php/httpd/bindings:/bindings" --env SERVICE_BINDING_ROOT=/bindings --env PORT=9999 -p 9999:9999  -it php-httpd-sample

Configuring Dynatrace properties
[Fri Jun 21 18:17:49.901389 2024] [mpm_event:notice] [pid 41:tid 46912510732160] AH00489: Apache/2.4.59 (Unix) configured -- resuming normal operations
[Fri Jun 21 18:17:49.902768 2024] [mpm_event:info] [pid 41:tid 46912510732160] AH00490: Server built: May  8 2024 22:03:19
[Fri Jun 21 18:17:49.903075 2024] [core:notice] [pid 41:tid 46912510732160] AH00094: Command line: 'httpd -f /layers/paketo-buildpacks_php-httpd/php-httpd-config/httpd.conf -D FOREGROUND'

[...]

It works properly and uses the php agent as expected.