8000 Patroni REST API Authentication · Issue #1075 · zalando/spilo · GitHub
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Patroni REST API Authentication #1075

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epandurski opened this issue Jan 24, 2025 · 1 comment
Open

Patroni REST API Authentication #1075

epandurski opened this issue Jan 24, 2025 · 1 comment

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@epandurski
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Hi,

I understand that the Patroni REST API is exposed on each spilo pod, at port 8008. Doesn't this pose a major security risk? It seem to me that every program running on the Kubernetes cluster could issue a PATCH /conifg request to this API, and mess up each database cluster. Is it possible to configure basic HTTP authentication for the Patroni REST API endpoints (as described here) ? If yes, how can I do this; and if not, isn't this a big security problem?
@TonyNoble
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@epandurski - yes, this is a security risk, as it allows any third party to perform operations that can change cluster state.

I'm working on raising a PR to use environment variables, but there is an intermediate workaround - set the SPILO_CONFIGURATION environment variable to restapi: { authentication: { username: PATRONI_USER, password: PATRONI_PASSWORD } }

This configuration will be merged with the spilo-generated patroni config on startup. It will not apply to read-only (safe) endpoints, but should protect unsafe POST requests.

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@epandurski @TonyNoble
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