feat(reports): use S3 presigned URL for archived recording reports

[andrewazores]

Welcome to Cryostat! 👋

Before contributing, make sure you have:

• Read the contributing guidelines
• Linked a relevant issue which this PR resolves
• Linked any other relevant issues, PR's, or documentation, if any
• Resolved all conflicts, if any
• Rebased your branch PR on top of the latest upstream main branch
• Attached at least one of the following labels to the PR: [chore, ci, docs, feat, fix, test]
• Signed all commits using a GPG signature

To recreate commits with GPG signature git fetch upstream && git rebase --force --gpg-sign upstream/main

---

Replaces #270
Depends on cryostatio/cryostat-reports#200
Related to #269

Description of the change:

See cryostatio/cryostat-reports#200 and #269. This adds a configuration property to control whether this new behaviour is used, and it is enabled by default.

The new behaviour uses the S3 object storage's presigned GET download URLs capability to allow the report generator to retrieve the JFR recording files on its own, rather than Cryostat needing to act as a piping intermediary.

The original implementation in #270 would also handle active recordings in the same way by first creating a transient archived recording copy for these purposes, but this does not reduce overall network traffic or latency and leads to many more potential transient recording copies polluting the storage, so I dropped that idea in this reimplementation. Report requests for active recordings will always use the intermediary pipe method, but requests for archived recordings will use presigned URLs for transfers by default if sidecar report generation is also enabled.

How to manually test:

1. Check out and build this PR and the corresponding cryostat-reports PR
2. ./smoketest.bash -Or
3. podman logs -f compose_reports_1 and podman logs -f compose_cryostat_1 to watch the logs
4. Open the UI, start some recordings as needed, then request reports for active and archived reports. Archived reports should result in log messages with the "presign" keyword, and in particular for large archived recordings the overall performance should be a bit faster (may not be noticeable in compose localhost environment).

[github-actions]

This PR/issue depends on:

• feat(s3): add endpoint for requesting report generation from presigned S3 URL cryostat-reports#200
  By Dependent Issues (🤖). Happy coding!

[andrewazores]

/build_test

[github-actions]

Workflow started at 3/21/2025, 3:06:55 PM. View Actions Run.

[github-actions]

No OpenAPI schema changes detected.

[github-actions]

No GraphQL schema changes detected.

[github-actions]

CI build and push: All tests pass ✅
https://github.com/cryostatio/cryostat/actions/runs/13999109309