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2 commits

Author SHA1 Message Date
Daniel Upton 8da6710958 proxycfg-sources: fix hot loop when service not found in catalog
Fixes a bug where a service getting deleted from the catalog would cause
the ConfigSource to spin in a hot loop attempting to look up the service.

This is because we were returning a nil WatchSet which would always
unblock the select.

Kudos to @freddygv for discovering this!
2022-08-02 15:42:29 +01:00
Dan Upton a6a6d5a8ee
Enable servers to configure arbitrary proxies from the catalog (#13244)
OSS port of enterprise PR 1822

Includes the necessary changes to the `proxycfg` and `xds` packages to enable
Consul servers to configure arbitrary proxies using catalog data.

Broadly, `proxycfg.Manager` now has public methods for registering,
deregistering, and listing registered proxies — the existing local agent
state-sync behavior has been moved into a separate component that makes use of
these methods.

When an xDS session is started for a proxy service in the catalog, a goroutine
will be spawned to watch the service in the server's state store and
re-register it with the `proxycfg.Manager` whenever it is updated (and clean
it up when the client goes away).
2022-05-27 12:38:52 +01:00