239f0e3084
When peering through mesh gateways we expect outbound dials to peer servers to flow through the local mesh gateway addresses. Now when establishing a peering we get a list of dial addresses as a ring buffer that includes local mesh gateway addresses if the local DC is configured to peer through mesh gateways. The ring buffer includes the mesh gateway addresses first, but also includes the remote server addresses as a fallback. This fallback is present because it's possible that direct egress from the servers may be allowed. If not allowed then the leader will cycle back to a mesh gateway address through the ring. When attempting to dial the remote servers we retry up to a fixed timeout. If using mesh gateways we also have an initial wait in order to allow for the mesh gateways to configure themselves. Note that if we encounter a permission denied error we do not retry since that error indicates that the secret in the peering token is invalid. |
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