m/node/allocs: split new package off m/node
The metropolis/node package contains various unrelated things. One of
these things are node-wide allocations of identifiers.
These are moved here to the new metropolis/node/allocs package.
Additionally, the constants are renamed to move the type of identifier
in front.
Change-Id: Ibc841ca64d4450a7054463e6d2d44753a118e07a
Reviewed-on: https://review.monogon.dev/c/monogon/+/4566
Reviewed-by: Tim Windelschmidt <tim@monogon.tech>
Tested-by: Jenkins CI
diff --git a/metropolis/node/allocs/net_ips.go b/metropolis/node/allocs/net_ips.go
new file mode 100644
index 0000000..b0d19a0
--- /dev/null
+++ b/metropolis/node/allocs/net_ips.go
@@ -0,0 +1,13 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package allocs
+
+import "net"
+
+// These are IP addresses used by various parts of Metropolis.
+var (
+ // Used by //metropolis/node/kubernetes as the DNS server IP for containers.
+ // Link-local IP space, 77 for ASCII M(onogon), 53 for DNS port.
+ IPContainerDNS = net.IPv4(169, 254, 77, 53)
+)