metropolis: stub out log service

The server side and client-side implementations are not quite ready yet,
but we're commiting this early so that we can start implementing more
node-local management RPCs.

Change-Id: I81b615b0f77dc7750cc738d60ee4923c3182721b
Reviewed-on: https://review.monogon.dev/c/monogon/+/1429
Tested-by: Jenkins CI
Reviewed-by: Lorenz Brun <lorenz@monogon.tech>
diff --git a/metropolis/cli/metroctl/cmd_node.go b/metropolis/cli/metroctl/cmd_node.go
index 97198d8..0f841ef 100644
--- a/metropolis/cli/metroctl/cmd_node.go
+++ b/metropolis/cli/metroctl/cmd_node.go
@@ -60,6 +60,7 @@
 func init() {
 	nodeCmd.AddCommand(nodeDescribeCmd)
 	nodeCmd.AddCommand(nodeListCmd)
+	nodeCmd.AddCommand(nodeLogsCmd)
 	rootCmd.AddCommand(nodeCmd)
 }