add etcd_quota_backend_bytes

manifests/config/kubeadm.pp

@@ -101,6 +101,10 @@
 #   An integer or time string (i.e.: "5m") can be used in case of "periodic". Only integer allowed in case of "revision"
 #   Integer or String
 #   Defaults to 0 (disabled)
+# @param etcd_quota_backend_bytes
+#   Raise alarms when backend size exceeds the given quota.
+#   An string. set a very small 16MB quota 16*1024*1024
+#   Default to 0 (size 2G )
 # @param api_server_count
 #   Defaults to undef
 # @param etcd_version
@@ -255,6 +259,7 @@
   Integer $etcd_max_wals = $kubernetes::etcd_max_wals,
   Integer $etcd_max_request_bytes = $kubernetes::etcd_max_request_bytes,
   Optional[String] $etcd_listen_metric_urls = $kubernetes::etcd_listen_metric_urls,
+  Optional[String] $etcd_quota_backend_bytes = $kubernetes::etcd_quota_backend_bytes,
   String $token = $kubernetes::token,
   String $ttl_duration = $kubernetes::ttl_duration,
   String $discovery_token_hash = $kubernetes::discovery_token_hash,

manifests/init.pp

@@ -230,6 +230,10 @@
 #     This will tell etcd how many WAL files to be kept
 #   Defaults to 5
 #
+# [*etcd_quota_backend_bytes*]
+#    Raise alarms when backend size exceeds the given quota (0 defaults to low space quota).
+#   Default to undef
+#
 # [*etcd_max_request_bytes*]
 #     This will tell etcd the maximum size of a request in bytes
 #   Defaults to 1572864
@@ -637,6 +641,7 @@
   Variant[String, Integer] $etcd_compaction_retention     = 0,
   Integer $etcd_max_wals                                  = 5,
   Integer $etcd_max_request_bytes                         = 1572864,
+  Optional[String] $etcd_quota_backend_bytes              = undef,
   Optional[String] $etcd_listen_metric_urls               = undef,
   Optional[String] $etcd_ca_key                           = undef,
   Optional[String] $etcd_ca_crt                           = undef,

templates/etcd/etcd.service.erb

@@ -43,6 +43,9 @@ ExecStart=/usr/local/bin/etcd --name <%= @etcd_hostname %> \
     --max-request-bytes <%= @etcd_max_request_bytes %> \
 <%- if @etcd_listen_metric_urls -%>
     --listen-metrics-urls <%= @etcd_listen_metric_urls %> \
+<%- end -%>
+<%- if @etcd_quota_backend_bytes -%>
+    --quota-backend-bytes <%= @etcd_quota_backend_bytes %> \
 <%- end -%>
     --max-wals <%= @etcd_max_wals %>