Using guest-set-user-password command with qga

I

ispirto

Renowned Member
Oct 20, 2012
37
1
73
Hello,

Code: 
root@internal2:/var/run/qemu-server# pveversion -v
proxmox-ve: 4.4-79 (running kernel: 4.4.35-2-pve)
pve-manager: 4.4-12 (running version: 4.4-12/e71b7a74)
pve-kernel-4.4.35-1-pve: 4.4.35-77
pve-kernel-4.4.35-2-pve: 4.4.35-79
lvm2: 2.02.116-pve3
corosync-pve: 2.4.0-1
libqb0: 1.0-1
pve-cluster: 4.0-48
qemu-server: 4.0-107
pve-firmware: 1.1-10
libpve-common-perl: 4.0-90
libpve-access-control: 4.0-23
libpve-storage-perl: 4.0-73
pve-libspice-server1: 0.12.8-1
vncterm: 1.2-1
pve-docs: 4.4-3
pve-qemu-kvm: 2.7.1-1
pve-container: 1.0-93
pve-firewall: 2.0-33
pve-ha-manager: 1.0-40
ksm-control-daemon: 1.2-1
glusterfs-client: 3.5.2-2+deb8u3
lxc-pve: 2.0.7-1
lxcfs: 2.0.6-pve1
criu: 1.6.0-1
novnc-pve: 0.5-8
smartmontools: 6.5+svn4324-1~pve80
zfsutils: 0.6.5.8-pve14~bpo80

I was wondering why the following command wouldn't work. It returns nothing and it doesn't change the guest's root password to "123456"

Code: 
echo '{ "execute": "guest-set-user-password", "arguments": { "crypted": false, "username": "root", "password": "MTIzNDU2" } }' | socat /var/run/qemu-server/35643.qga -

Modified from http://git.qemu.org/?p=qemu.git;a=commitdiff;h=215a277

Seems the method is already there on the guest:

Code: 
root@internal2:~# qm agent 35643 info
{
   "supported_commands" : [
      {
         "enabled" : true,
         "name" : "guest-set-user-password"
      },
      {
         "enabled" : true,
         "name" : "guest-set-vcpus"
      },
      {
         "enabled" : true,
         "name" : "guest-get-vcpus"
      },
      {
         "enabled" : true,
         "name" : "guest-network-get-interfaces"
      },
      {
         "enabled" : true,
         "name" : "guest-suspend-hybrid"
      },
      {
         "enabled" : true,
         "name" : "guest-suspend-ram"
      },
      {
         "enabled" : true,
         "name" : "guest-suspend-disk"
      },
      {
         "enabled" : true,
         "name" : "guest-fstrim"
      },
      {
         "enabled" : true,
         "name" : "guest-fsfreeze-thaw"
      },
      {
         "enabled" : true,
         "name" : "guest-fsfreeze-freeze"
      },
      {
         "enabled" : true,
         "name" : "guest-fsfreeze-status"
      },
      {
         "enabled" : false,
         "name" : "guest-file-flush"
      },
      {
         "enabled" : false,
         "name" : "guest-file-seek"
      },
      {
         "enabled" : false,
         "name" : "guest-file-write"
      },
      {
         "enabled" : false,
         "name" : "guest-file-read"
      },
      {
         "enabled" : false,
         "name" : "guest-file-close"
      },
      {
         "enabled" : false,
         "name" : "guest-file-open"
      },
      {
         "enabled" : true,
         "name" : "guest-shutdown"
      },
      {
         "enabled" : true,
         "name" : "guest-info"
      },
      {
         "enabled" : true,
         "name" : "guest-set-time"
      },
      {
         "enabled" : true,
         "name" : "guest-get-time"
      },
      {
         "enabled" : true,
         "name" : "guest-ping"
      },
      {
         "enabled" : true,
         "name" : "guest-sync"
      },
      {
         "enabled" : true,
         "name" : "guest-sync-delimited"
      }
   ],
   "version" : "0.12.1"
}

UPDATE:

Removing the spaces from the json string and rerunning it returned the following result:

Code: 
root@internal2:/var/run/qemu-server# echo '{"execute":"guest-set-user-password","arguments":{"crypted":false,"username":"root","password":"MTIzNDU2"}}' | socat /var/run/qemu-server/35643.qga -
root@internal2:/var/run/qemu-server# socat /var/run/qemu-server/35643.qga -
{"error": {"class": "GenericError", "desc": "child process has failed to set user password", "data": {"message": "child process has failed to set user password"}}}

UPDATE:

It seems this was caused because of SELinux. I've disabled it on the guest and it worked.

Reference: https://bugzilla.redhat.com/show_bug.cgi?id=1369699

I'm wondering if you guys are looking to implement this feature on "qm agent" command.
 
Last edited:
please file an enhancement request at bugzilla.proxmox.com (for qemu-server)
 
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