Update documentation

kubernetes · Nov 23, 2021 · ab04299 · ab04299
1 parent ea2be43
commit ab04299
Show file tree

Hide file tree

Showing 2 changed files with 5 additions and 0 deletions.
diff --git a/cluster-autoscaler/FAQ.md b/cluster-autoscaler/FAQ.md
@@ -719,6 +719,7 @@ The following startup parameters are supported for cluster autoscaler:
 | `max-failing-time` | Maximum time from last recorded successful autoscaler run before automatic restart | 15 minutes
 | `balance-similar-node-groups` | Detect similar node groups and balance the number of nodes between them | false
 | `balancing-ignore-label` | Define a node label that should be ignored when considering node group similarity. One label per flag occurrence. | ""
+| `balancing-label` | Define a node label to use when comparing node group similarity. If set, all other comparison logic is disabled, and only labels are considered when comparing groups. One label per flag occurrence. | ""
 | `node-autoprovisioning-enabled` | Should CA autoprovision node groups when needed | false
 | `max-autoprovisioned-node-group-count` | The maximum number of autoprovisioned groups in the cluster | 15
 | `unremovable-node-recheck-timeout` | The timeout before we check again a node that couldn't be removed before | 5 minutes

diff --git a/cluster-autoscaler/cloudprovider/aws/README.md b/cluster-autoscaler/cloudprovider/aws/README.md
@@ -304,6 +304,10 @@ spec:
                   - i3.2xlarge
 ```
 
+Similarly, if using the `balancing-label` flag, you should only choose labels which have the same value for all nodes in
+the node group.  Otherwise you may get unexpected results, as the flag values will vary based on the nodes created by
+the ASG.
+
 ### Example usage:
 
 - Create a [Launch