feat(xo-web,sdn-controller): tip on network creation (#4431)

"Warning: a pool can have 1 GRE and 1 VxLAN network max"

packages/xo-server-sdn-controller/README.md

@@ -25,7 +25,7 @@ the web interface, see [the plugin documentation](https://xen-orchestra.com/docs
 The plugin's configuration contains:
 - `cert-dir`: A path where to find the certificates to create SSL connections with the hosts.
 If none is provided, the plugin will create its own self-signed certificates.
-- `override-certs:` Whether or not to uninstall an already existing SDN controller CA certificate in order to replace it by the plugin's one.
+- `override-certs`: Whether or not to uninstall an already existing SDN controller CA certificate in order to replace it by the plugin's one.
 
 ## Contributions
 

packages/xo-web/src/common/intl/messages.js

@@ -1751,6 +1751,8 @@ const messages = {
   pillBonded: 'Bonded',
   bondedNetwork: 'Bonded network',
   privateNetwork: 'Private network',
+  privateNetworkWarning:
+    'Warning: a pool can have 1 GRE and 1 VxLAN network max',
 
   // ----- Add host -----
   hosts: 'Hosts',

packages/xo-web/src/xo-app/new/network/index.js

@@ -1,6 +1,7 @@
 import _, { messages } from 'intl'
 import ActionButton from 'action-button'
 import decorate from 'apply-decorators'
+import Icon from 'icon'
 import PropTypes from 'prop-types'
 import React, { Component } from 'react'
 import Wizard, { Section } from 'wizard'
@@ -251,6 +252,9 @@ const NewNetwork = decorate([
                           ]}
                           value={encapsulation}
                         />
+                        <em>
+                          <Icon icon='info' /> {_('privateNetworkWarning')}
+                        </em>
                       </div>
                     ) : (
                       <div>