add rpc_public_addr_subnet config option

In case `rpc_public_addr` is not set, but autodiscovery is used, this
allows filtering the list of automatically discovered IPs to a specific
subnet.

For example, if nodes should pick *their* IP inside a specific subnet,
but you don't want to explicitly write the IP down (as it's dynamic, or
you want to share configs across nodes), you can use this option.

1 files changed, 1 insertions, 0 deletions

diff --git a/Cargo.lock b/Cargo.lock
index b96483dd..9cb4b57e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1527,6 +1527,7 @@ dependencies = [
  "garage_util",
  "gethostname",
  "hex",
+ "ipnet",
  "itertools 0.12.1",
  "k8s-openapi",
  "kube",