add cinder max attached volumes (#5089)

kubernetes-sigs · Aug 20, 2019 · 4dba34b · 4dba34b
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diff --git a/contrib/terraform/openstack/README.md b/contrib/terraform/openstack/README.md
@@ -415,6 +415,11 @@ kube_network_plugin: flannel
 # For Container Linux by CoreOS:
 resolvconf_mode: host_resolvconf
 ```
+- Set max amount of attached cinder volume per host (default 256)
+```
+node_volume_attach_limit: 26
+```
+
 
 ### Deploy Kubernetes
 

diff --git a/roles/kubernetes/node/templates/cloud-configs/openstack-cloud-config.j2 b/roles/kubernetes/node/templates/cloud-configs/openstack-cloud-config.j2
@@ -27,6 +27,9 @@ bs-version={{ openstack_blockstorage_version }}
 {% if openstack_blockstorage_ignore_volume_az is defined and openstack_blockstorage_ignore_volume_az|bool %}
 ignore-volume-az={{ openstack_blockstorage_ignore_volume_az }}
 {% endif %}
+{% if node_volume_attach_limit is defined and node_volume_attach_limit != "" %}
+node-volume-attach-limit="{{ node_volume_attach_limit }}"
+{% endif %}
 
 {% if openstack_lbaas_enabled and openstack_lbaas_subnet_id is defined %}
 [LoadBalancer]