multihttp checks require outbound connections (jslib.k6.io) to fetch resources

[ka3de]

The multihttp checks are based on a k6 test template. See here. This template fetches two external resources for jsonpath and URL from jslib.k6.io (here).

For private probes running in restricted environments, with forbidden outbound connections by default for example, this requires extra steps for its configuration. This is even more confusing for end users creating multihttp checks that do not use JSON path variables, which wouldn't require the use of the jsonpath library.

Ideally we could explore refactoring the multihttp template implementation to not depend on external resources, and/or make them optional based on the check definition. Alternatively, we should document that behavior in the private probes documentation, in the same way we document the requirement for outbound connections to the Synthetic Monitoring API, Mimir and Loki.

[peterschretlen]

Longer term this would be solved with archive support. Short term we can add notes to:

• Private probes docs
• Multihttp docs

[alexs-github-account]

Hi @peterschretlen is it acceptable here to let the customer know that the docs are going to be updated to reflect the current behavior for now, and a "fix" will be released at some later point?

[peterschretlen]

@alexs-github-account yes we'll start with clarifying this in the docs. We discussed in triage that this could be addressed by adding archive support, but we don't expect archive support to be added near-term.

[peterschretlen]

Docs have been update in https://github.com/grafana/website/pull/27612.
The remaining work will go to the backlog for prioritization later.