OpenVSwitchが動かなくなったので直した

OpenStackを再インストールしたりしてる内に、OpenVSwitchが動かなくなった。。。

Setting up openvswitch-switch (2.17.0-0ubuntu1) ...
Could not execute systemctl:  at /usr/bin/deb-systemd-invoke line 142.
A dependency job for openvswitch-switch.service failed. See 'journalctl -xe' for details.
invoke-rc.d: initscript openvswitch-switch, action "start" failed.
○ openvswitch-switch.service - Open vSwitch
     Loaded: loaded (/lib/systemd/system/openvswitch-switch.service; enabled; vendor preset: enabled)
     Active: inactive (dead) since Sun 2022-07-24 02:25:44 UTC; 6h ago
   Main PID: 1237 (code=exited, status=0/SUCCESS)
        CPU: 5ms

Jul 24 08:23:23 master-node systemd[1]: Dependency failed for Open vSwitch.
Jul 24 08:23:23 master-node systemd[1]: openvswitch-switch.service: Job openvswitch-switch.service/start failed with result 'dependency'.
Jul 24 08:25:33 master-node systemd[1]: Dependency failed for Open vSwitch.
Jul 24 08:25:33 master-node systemd[1]: openvswitch-switch.service: Job openvswitch-switch.service/start failed with result 'dependency'.
Jul 24 08:28:00 master-node systemd[1]: Dependency failed for Open vSwitch.
Jul 24 08:28:00 master-node systemd[1]: openvswitch-switch.service: Job openvswitch-switch.service/start failed with result 'dependency'.
Jul 24 09:03:29 master-node systemd[1]: Dependency failed for Open vSwitch.
Jul 24 09:03:29 master-node systemd[1]: openvswitch-switch.service: Job openvswitch-switch.service/start failed with result 'dependency'.
Jul 24 09:04:03 master-node systemd[1]: Dependency failed for Open vSwitch.
Jul 24 09:04:03 master-node systemd[1]: openvswitch-switch.service: Job openvswitch-switch.service/start failed with result 'dependency'.
dpkg: error processing package openvswitch-switch (--configure):
 installed openvswitch-switch package post-installation script subprocess returned error exit status 1
Errors were encountered while processing:
 openvswitch-switch

ので以下の通りに修正した。

$sudo vim  /usr/lib/systemd/system/ovsdb-server.service
[Unit]
Description=Open vSwitch Database Unit
After=syslog.target network-pre.target dpdk.service local-fs.target
Before=network.target networking.service
PartOf=openvswitch-switch.service
DefaultDependencies=no

[Service]
LimitNOFILE=1048576
Type=forking
Restart=on-failure
EnvironmentFile=-/etc/default/openvswitch-switch
ExecStart=/usr/share/openvswitch/scripts/ovs-ctl \
          --no-ovs-vswitchd --no-monitor --system-id=random \
          --no-record-hostname \
          --remote=punix:/var/run/openvswitch/db.sock \
          start $OVS_CTL_OPTS
ExecStop=/usr/share/openvswitch/scripts/ovs-ctl --no-ovs-vswitchd stop
ExecReload=/usr/share/openvswitch/scripts/ovs-ctl --no-ovs-vswitchd \
          --no-record-hostname \
          --no-monitor restart $OVS_CTL_OPTS
RuntimeDirectory=openvswitch
RuntimeDirectoryMode=0755
RuntimeDirectoryPreserve=yes