fix: path-based routing broken due to key collisions in sanitize()#2524
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oschwartz10612 merged 4 commits intofosrl:devfrom Mar 8, 2026
Merged
fix: path-based routing broken due to key collisions in sanitize()#2524oschwartz10612 merged 4 commits intofosrl:devfrom
oschwartz10612 merged 4 commits intofosrl:devfrom
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Please adjust these two things and then we should be good to merge up. Thanks for the change!
…isions Use encodePath only for internal map key grouping (collision-free) and sanitize for Traefik-facing router/service names (unchanged for existing users). Extract pure functions into pathUtils.ts so tests can run without DB dependencies.
… scheme Address PR review comments: - Remove pathUtils.ts and move sanitize/encodePath directly into utils.ts - Simplify dual-key approach to single key using encodePath for map keys - Remove backward-compat logic (not needed per reviewer) - Update tests to match simplified approach
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Description
Fixes #2294
What this fixes
The
sanitize()function used to generate internal map keys for grouping targets ingetTraefikConfigcan cause path collisions. It replaces all non-alphanumeric characters (including/,.,_) with dashes and collapses them, so structurally different paths can produce the same key:sanitize("/a/b")="a-b"sanitize("/a-b")="a-b"(same!)When two targets get the same key, they're grouped into one loadbalancer service and Traefik round-robins between them instead of routing by path.
Note: this specific collision doesn't affect the
/vs/apiscenario reported in the issue (those already produce different keys), but it would affect setups with paths like/api/v1vs/api-v1or/app.v2vs/app/v2.How to test?
/api/v1and/api-v1)