fix(xo-server/Rolling Pool Update/_xcpUpdate): handle undefined hosts (#6186)

Fixes #6170
Introduced by e7f9111ab5

CHANGELOG.unreleased.md

@@ -14,6 +14,7 @@
 - [Plugins] Automatically configure plugins when a configuration file is imported (PR [#6171](https://github.com/vatesfr/xen-orchestra/pull/6171))
 - [VMDK Export] Fix `VBOX_E_FILE_ERROR (0x80BB0004)` when importing in VirtualBox (PR [#6163](https://github.com/vatesfr/xen-orchestra/pull/6163))
 - [Backup] Fix "Cannot read properties of undefined" error when restoring from a proxied remote (PR [#6179](https://github.com/vatesfr/xen-orchestra/pull/6179))
+- [Rolling Pool Update] Fix "cannot read properties of undefined" error [#6170](https://github.com/vatesfr/xen-orchestra/issues/6170) (PR [#6186](https://github.com/vatesfr/xen-orchestra/pull/6186))
 
 ### Packages to release
 

packages/xo-server/src/api/pool.mjs

@@ -116,7 +116,6 @@ listMissingPatches.resolve = {
 // -------------------------------------------------------------------
 
 export async function installPatches({ pool, patches, hosts }) {
-  const opts = { patches }
   let xapi
   if (pool !== undefined) {
     pool = this.getXapiObject(pool, 'pool')
@@ -124,7 +123,6 @@ export async function installPatches({ pool, patches, hosts }) {
     hosts = Object.values(xapi.objects.indexes.type.host)
   } else {
     hosts = hosts.map(_ => this.getXapiObject(_))
-    opts.hosts = hosts
     xapi = hosts[0].$xapi
     pool = xapi.pool
   }
@@ -138,7 +136,7 @@ export async function installPatches({ pool, patches, hosts }) {
     })
   }
 
-  await xapi.installPatches(opts)
+  await xapi.installPatches({ hosts, patches })
 
   const masterRef = pool.master
   if (moveFirst(hosts, _ => _.$ref === masterRef)) {

packages/xo-server/src/xapi/mixins/patching.mjs

@@ -308,6 +308,10 @@ export default {
   // INSTALL -------------------------------------------------------------------
 
   async _xcpUpdate(hosts) {
+    if (hosts === undefined) {
+      hosts = Object.values(this.objects.indexes.type.host)
+    }
+
     // XCP-ng hosts need to be updated one at a time starting with the pool master
     // https://github.com/vatesfr/xen-orchestra/issues/4468
     hosts = hosts.sort(({ $ref }) => ($ref === this.pool.master ? -1 : 1))