IBX-12173: Added Varnish 9 VCL

[vidarl]

🎫 Issue	IBX-12173

Caution

DO-NOT-MERGE : PR contains TMP commit with dependencies.json for making CI green

Caution

This PR cannot be merged up as-is as vcl files are different in here vs 5.0. Code for 5.0 is prepared in separate branch: IBX-12173_support_for_varnish9_50

Caution

I based this on IBX-12244-varnish7-vcl-hit for the time being as it is dependent on #86 . However, this one should be merged into 4.6 after#86, not merged into IBX-12244-varnish7-vcl-hit.

Related PRs:

• IBX-12173: Added Varnish 9 Docker build docker#64 (consumes this file for the Docker build)
• IBX-12173: Added Varnish 9 support for Platform.sh/Upsun post-install#107 (consumes this file for Platform.sh/Upsun support)
• IBX-12173: Added Varnish 9 support for Upsun cloud#12
• IBX-12241: Added Behat coverage for Varnish TTL, stale cache, cache keys and tagging #85
• IBX-12244: Restored refresh-instead-of-stale for logged-in users on Varnish 7 #86

Description:

Adds docs/varnish/vcl/varnish9.vcl for Varnish 9. VCL 4.1 syntax is unchanged between Varnish 7 and 9, so this file is
identical to varnish7.vcl apart from the header comment.

For QA:

Documentation:

[konradoboza]

Thank you @vidarl! Side note: since 5.0 we most likely need that in https://github.com/ibexa/cloud/blob/5.0/resources/upsun/common/5.0/.platform/varnish.vcl too.

[bnowak]

Approved to ublock topic, based on it's 1:1 copy between versions.
I don't know vcl much, so if you want to have more confidence, please wait for some more reviewers 😉

[vidarl]

Thank you @vidarl! Side note: since 5.0 we most likely need that in https://github.com/ibexa/cloud/blob/5.0/resources/upsun/common/5.0/.platform/varnish.vcl too.

@konradoboza :PR created : ibexa/cloud#12
Talked to @barw4 and we think there is no need to merge up to 5.0 in ibexa/post-install as it is replaced by ibexa/cloud. Give me ping if you disagree

[vidarl]

Sonar Cloud complains about Github actions can be ignored, ref discussion on #php-team - https://ibexa.slack.com/archives/C06GPEY4542/p1786537399709099

[vidarl]

I am re-requesting reviews on this one, as I have added two more commits.

[barw4]

+1 but aren't we missing some yml config as CI shows?

[sonarqubecloud]

Quality Gate failed

Failed conditions
C Security Rating on New Code (required ≥ A)

See analysis details on SonarQube Cloud

Catch issues before they fail your Quality Gate with our IDE extension SonarQube for IDE

[vidarl]

+1 but aren't we missing some yml config as CI shows?

@barw4 : I added 41e2e28 ( [TMP] Added dependencies.json linking ibexa/docker PR #64 ) in order to make CI green