add etcd max-request-bytes option

Author: Marc Schaer

REFERENCE.md

@@ -748,6 +748,10 @@ the files if they do not exist.
     This will tell etcd how many WAL files to be kept
   Defaults to 5
 
+[*etcd_request_bytes*]
+    This will tell etcd the maximum size of a request in bytes
+  Defaults to 1572864
+
 [*etcd_ca_key*]
   This is the ca certificate key data for the etcd cluster. This must be passed as string not as a file.
   Defaults to undef
@@ -1254,6 +1258,14 @@ Data type: `Integer`
 
 Default value: `5`
 
+##### `etcd_request_bytes`
+
+Data type: `Integer`
+
+
+
+Default value: `1572864`
+
 ##### `etcd_ca_key`
 
 Data type: `Optional[String]`

manifests/config/kubeadm.pp

@@ -30,6 +30,7 @@
   Integer $api_server_count = $kubernetes::api_server_count,
   String $etcd_version = $kubernetes::etcd_version,
   Integer $etcd_max_wals = $kubernetes::etcd_max_wals,
+  Integer $etcd_max_request_bytes = $kubernetes::etcd_max_request_bytes,
   String $token = $kubernetes::token,
   String $ttl_duration = $kubernetes::ttl_duration,
   String $discovery_token_hash = $kubernetes::discovery_token_hash,

manifests/init.pp

@@ -189,6 +189,10 @@
 #     This will tell etcd how many WAL files to be kept
 #   Defaults to 5
 #
+# [*etcd_max_request_bytes*]
+#     This will tell etcd the maximum size of a request in bytes
+#   Defaults to 1572864
+#
 # [*etcd_ca_key*]
 #   This is the ca certificate key data for the etcd cluster. This must be passed as string not as a file.
 #   Defaults to undef
@@ -520,6 +524,7 @@
   Optional[Enum['periodic', 'revision']] $etcd_compaction_method = 'periodic',
   Variant[String, Integer] $etcd_compaction_retention            = 0,
   Integer $etcd_max_wals                                         = 5,
+  Integer $etcd_max_request_bytes                                = 1572864,
   Optional[String] $etcd_ca_key                                  = undef,
   Optional[String] $etcd_ca_crt                                  = undef,
   Optional[String] $etcdclient_key                               = undef,

templates/etcd/etcd.erb

@@ -16,6 +16,7 @@ ETCD_AUTO_COMPACTION_MODE="<%= @etcd_compaction_method %>"
 <% end -%>
 ETCD_AUTO_COMPACTION_RETENTION="<%= @etcd_compaction_retention %>"
 ETCD_MAX_WALS="<%= @etcd_max_wals %>"
+ETCD_MAX_REQUEST_BYTES="<%= @etcd_max_request_bytes %>"
 ETCD_ADVERTISE_CLIENT_URLS="https://<%= @etcd_ip %>:2379"
 ETCD_CERT_FILE="/etc/kubernetes/pki/etcd/server.crt"
 ETCD_KEY_FILE="/etc/kubernetes/pki/etcd/server.key"

templates/etcd/etcd.service.erb

@@ -40,7 +40,8 @@ ExecStart=/usr/local/bin/etcd --name <%= @etcd_hostname %> \
 <% if @etcd_version >= "3.3.0" -%>
     --auto-compaction-mode <%= @etcd_compaction_method %> \
 <% end -%>
-    --max-wals <%= @etcd_max_wals %>
+    --max-wals <%= @etcd_max_wals %> \
+    --max-request-bytes <%= @etcd_max_request_bytes %>
 
 
 [Install]