add kindling tester

[WendelHime]

related to getlantern/engineering#2976

[Copilot]

Pull request overview

This PR adds a new kindling-tester tool for testing individual kindling transports (proxyless, fronted, amp, dnstt). The implementation refactors the kindling client initialization to support selectively enabling/disabling transports via a configurable map, and introduces a standalone CLI tool that can be packaged as Docker images.

Changes:

• Refactored kindling transport initialization to be configurable via an EnabledTransports map
• Added kindling-tester CLI tool for testing individual transports
• Added Dockerfile for building transport-specific test images

Reviewed changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated 11 comments.

Show a summary per file

File	Description
kindling/client.go	Refactored NewKindling() to conditionally initialize transports based on EnabledTransports map; added dnstt transport support
cmd/kindling-tester/main.go	New CLI tool that tests a single kindling transport by setting environment variables and making HTTP requests
cmd/kindling-tester/README.md	Documentation for the kindling-tester tool with CLI and Docker usage examples
docker/Dockerfile.kindling-tester	Multi-stage Dockerfile for building kindling-tester binary
.gitignore	Added patterns to ignore local environment files for kindling-tester

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[myleshorton]

One thing to keep in mind is that fronted isn't designed to work with any arbitrary site -- it only works with the ones we've configured it for, such as api.iantem.io.

[WendelHime]

One thing to keep in mind is that fronted isn't designed to work with any arbitrary site -- it only works with the ones we've configured it for, such as api.iantem.io.

Yeah, in this case I'm considering pinging the healthz endpoint