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fix(libvirt): allow hook complete regardless of ws result, extract guest UUID from XML

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main
Tsu-ba-me 2 years ago
parent dc78a8ccf1
commit f29ccb96d5
1 changed files with 42 additions and 29 deletions
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  1. 45
      libvirt/hooks/qemu.d/ws

45
libvirt/hooks/qemu.d/ws
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@ -1,35 +1,48 @@
#!/bin/bash #!/bin/bash
echo "wsargs=$@" {
echo "wsargs=$@"
guest_name="$1" domain_xml=$(</dev/stdin)
operation="$2" guest_name="$1"
operation="$2"
# Operation migrate will: # Operation migrate will:
# 1. Trigger migrate->prepare->start->started operation on the destination host. # 1. Trigger migrate->prepare->start->started operation on the destination host.
# 2. Trigger stopped->release operations on the source host. # 2. Trigger stopped->release operations on the source host.
if [[ "$operation" == "started" || "$operation" == "stopped" ]] if [[ "$operation" == "started" || "$operation" == "stopped" ]]
then then
ws_open_flag="" ws_open_flag=""
ws_port_flag="" ws_port_flag=""
ws_suuid_flag=""
if [[ "$operation" == "started" ]] if [[ "$operation" == "started" ]]
then then
ws_open_flag="--open" ws_open_flag="--open"
# libvirt hooks cannot call anything related to libvirt, i.e., # Cannot call $ virsh vncdisplay... because libvirt hooks
# virsh because a deadlock will happen. # cannot call anything related to libvirt, i.e., virsh, because
server_vnc_port=$(grep "<graphics.*type=['\"]vnc['\"]" - | grep -oPm1 "(?<=port=['\"])\d+") # a deadlock will happen.
server_vnc_port=$( grep "<graphics.*type=['\"]vnc['\"]" <<<$domain_xml | grep -oPm1 "(?<=port=['\"])\d+" )
ws_port_flag="--server-vnc-port ${server_vnc_port}" ws_port_flag="--server-vnc-port ${server_vnc_port}"
server_uuid=$( grep -oPm1 "(?<=<uuid>)[^\s]+(?=<)" <<<$domain_xml )
ws_suuid_flag="--server-uuid ${server_uuid}"
local_host_uuid=$(</etc/anvil/host.uuid) local_host_uuid=$(</etc/anvil/host.uuid)
update_sql="UPDATE servers SET server_host_uuid = '$local_host_uuid' WHERE server_name = '$guest_name';" update_sql="UPDATE servers SET server_host_uuid = '$local_host_uuid' WHERE server_name = '$guest_name';"
echo "update=$update_sql" echo "wsupdate=$update_sql"
anvil-access-module --query "$update_sql" --mode write anvil-access-module --query "$update_sql" --mode write
fi fi
ws_command="striker-manage-vnc-pipes --server ${guest_name} --server-host-uuid local ${ws_port_flag} --component ws ${ws_open_flag}" ws_command_args="--server \"$guest_name\" $ws_suuid_flag --server-host-uuid local $ws_port_flag --component ws $ws_open_flag"
echo "wscmd=$ws_command" echo "wscmd=$ws_command_args"
$ws_command striker-manage-vnc-pipes --server "$guest_name" $ws_suuid_flag --server-host-uuid local $ws_port_flag --component ws $ws_open_flag
fi echo "wscmd_exit=$?"
# Don't interrupt libvirt regardless of whether websockify gets setup
# successfully.
exit 0
fi
} >>/var/log/anvil.log

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