fix(xo-server/{export,import}Vdi): dont pass host (#3355)

Relies on redirection handling in `xen-api`.

Fixes #3354

CHANGELOG.md

@@ -7,6 +7,7 @@
 ### Bug fixes
 
 - [Remotes] Fix "undefined" mount option issue [#3361](https://github.com/vatesfr/xen-orchestra/issues/3361) (PR [#3363](https://github.com/vatesfr/xen-orchestra/pull/3363))
+- [Continuous Replication] Don't try to import on halted host [#3354](https://github.com/vatesfr/xen-orchestra/issues/3354) (PR [#3355](https://github.com/vatesfr/xen-orchestra/pull/3355))
 
 ### Released packages
 

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

@@ -1940,9 +1940,6 @@ export default class Xapi extends XapiBase {
   @concurrency(12, stream => stream.then(stream => fromEvent(stream, 'end')))
   @cancelable
   _exportVdi ($cancelToken, vdi, base, format = VDI_FORMAT_VHD) {
-    const sr = vdi.$SR
-    const host = sr.$PBDs[0].$host
-
     const query = {
       format,
       vdi: vdi.$ref,
@@ -1958,13 +1955,12 @@ export default class Xapi extends XapiBase {
     )
 
     return this.getResource($cancelToken, '/export_raw_vdi/', {
-      host,
       query,
       task: this.createTask('VDI Export', vdi.name_label),
     }).catch(error => {
       // augment the error with as much relevant info as possible
-      error.host = host
-      error.SR = sr
+      error.pool_master = vdi.$pool.$master
+      error.SR = vdi.$SR
       error.VDI = vdi
 
       throw error
@@ -1979,19 +1975,10 @@ export default class Xapi extends XapiBase {
   // -----------------------------------------------------------------
 
   async _importVdiContent (vdi, body, format = VDI_FORMAT_VHD) {
-    const sr = vdi.$SR
-    const pbd = find(sr.$PBDs, 'currently_attached')
-    if (pbd === undefined) {
-      throw new Error('no valid PBDs found')
-    }
-
-    const host = pbd.$host
-
     await Promise.all([
       body.task,
       body.checksumVerified,
       this.putResource(body, '/import_raw_vdi/', {
-        host,
         query: {
           format,
           vdi: vdi.$ref,
@@ -2000,8 +1987,8 @@ export default class Xapi extends XapiBase {
       }),
     ]).catch(error => {
       // augment the error with as much relevant info as possible
-      error.host = host
-      error.SR = sr
+      error.pool_master = vdi.$pool.$master
+      error.SR = vdi.$SR
       error.VDI = vdi
 
       throw error