feat(xo-server/createCloudInit): support network config (#3997)

* feat(xo-server/createCloudInit): support network config

See #3872

* Update index.js

packages/xo-server/src/api/vm.js

@@ -1461,14 +1461,25 @@ getCloudInitConfig.resolve = {
 
 // -------------------------------------------------------------------
 
-export async function createCloudInitConfigDrive({ vm, sr, config, coreos }) {
+export async function createCloudInitConfigDrive({
+  config,
+  coreos,
+  networkConfig,
+  sr,
+  vm,
+}) {
   const xapi = this.getXapi(vm)
   if (coreos) {
     // CoreOS is a special CloudConfig drive created by XS plugin
     await xapi.createCoreOsCloudInitConfigDrive(vm._xapiId, sr._xapiId, config)
   } else {
     // use generic Cloud Init drive
-    await xapi.createCloudInitConfigDrive(vm._xapiId, sr._xapiId, config)
+    await xapi.createCloudInitConfigDrive(
+      vm._xapiId,
+      sr._xapiId,
+      config,
+      networkConfig
+    )
   }
 }
 
@@ -1476,6 +1487,7 @@ createCloudInitConfigDrive.params = {
   vm: { type: 'string' },
   sr: { type: 'string' },
   config: { type: 'string' },
+  networkConfig: { type: 'string', optional: true },
 }
 
 createCloudInitConfigDrive.resolve = {

packages/xo-server/src/xapi/index.js

@@ -2361,8 +2361,16 @@ export default class Xapi extends XapiBase {
   }
 
   // Generic Config Drive
+  //
+  // https://cloudinit.readthedocs.io/en/latest/topics/datasources/nocloud.html
   @deferrable
-  async createCloudInitConfigDrive($defer, vmId, srId, config) {
+  async createCloudInitConfigDrive(
+    $defer,
+    vmId,
+    srId,
+    userConfig,
+    networkConfig
+  ) {
     const vm = this.getObject(vmId)
     const sr = this.getObject(srId)
 
@@ -2380,7 +2388,9 @@ export default class Xapi extends XapiBase {
 
     await Promise.all([
       fs.writeFile('meta-data', 'instance-id: ' + vm.uuid + '\n'),
-      fs.writeFile('user-data', config),
+      fs.writeFile('user-data', userConfig),
+      networkConfig !== undefined &&
+        fs.writeFile('network-config', networkConfig),
     ])
 
     // ignore errors, I (JFT) don't understand why they are emitted