add support for k3s.etcd-arg

closes #59

Author: poblin-orange

jobs/k3s-server/spec

@@ -160,6 +160,9 @@ properties:
   k3s.embedded-ha-etcd:
     description: if set, use embedded etcd in ha mode. requires an odd number of servers, overrides datastore-endpoints
 
+  k3s.etcd-args:
+    description: (flags) Customized flag for etcd process
+    default: []
 
   k3s.datastore-endpoint:
     description: Specify etcd, Mysql, Postgres, or Sqlite (default) data source name

jobs/k3s-server/templates/bin/ctl.erb

@@ -140,6 +140,7 @@ case $1 in
 <% end %>
 <% end %>
 
+
 <% if_p('k3s.cluster-cidr') do |value| %>
     export FLAGS="$FLAGS --cluster-cidr=<%= value %>"
 <% end %>
@@ -207,6 +208,13 @@ export FLAGS="$FLAGS --prefer-bundled-bin"
 #get bootstrap server in cluster
 export BOOTSTRAP_SERVER=<%= link('k3s-server').instances[0].address %>
 
+
+<% if_p('k3s.etcd-args') do |value| %>
+<% p('k3s.etcd-args').each do |flag| %>
+    export FLAGS="$FLAGS --etcd-arg=<%= flag %>"
+<% end %>
+<% end %>
+
 <% if_p('k3s.embedded-ha-etcd') do |value| %>
 
 <% if spec.bootstrap %>