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Add vm state management scripts

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j3s 2021-02-16 20:58:23 -06:00
parent 336e69953e
commit 2e265703bd
4 changed files with 161 additions and 0 deletions
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39
capsulflask/shell_scripts/force-stop.sh Executable file
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#!/bin/sh -e
#
# force-stop.sh - pull the plug on a capsul
# if it is already stopped, do nothing
# State Key
# NOSTATE: 0 - no state
# RUNNING: 1 - the domain is running
# BLOCKED: 2 - the domain is blocked on resource
# PAUSED: 3 - the domain is paused by user
# SHUTDOWN: 4 - the domain is being shut down
# SHUTOFF: 5 - the domain is shut off
# CRASHED: 6 - the domain is crashed
# PMSUSPENDED: 7 - the domain is suspended by guest power management
# LAST: 8 NB: this enum value will increase over time as new events are added to the libvirt API. It reflects the last state supported by this version of the libvirt API.
vmname="$1"
[ "$vmname" = '' ] && printf 'you must set $vmname\n' && exit 1
if printf "$vmname" | grep -vqE '^(cvm|capsul)-[a-z0-9]{10}$'; then
printf 'vmname %s must match ^capsul-[a-z0-9]{10}$\n' "$vmname"
exit 1
fi
state="$(virsh domstats $vmname | grep state.state | cut -d '=' -f 2)"
[ "$state" = '' ] && printf 'state was not detected. must match ^[0-8]$\n' && exit 1
if printf "$state" | grep -vqE '^[0-8]$'; then
printf 'state %s must match ^[0-8]$\n' "$state"
exit 1
fi
case "$state" in
[1-47]) virsh destroy "$vmname" > /dev/null ;; # virsh destroy == pull the plug
[5-6]) printf "%s is already off\n" "$vmname" ;;
esac

43
capsulflask/shell_scripts/restart.sh Executable file
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#!/bin/sh -e
#
# restart.sh - restarts a capsul
# if it is stopping, do nothing
# State Key
# NOSTATE: 0 - no state
# RUNNING: 1 - the domain is running
# BLOCKED: 2 - the domain is blocked on resource
# PAUSED: 3 - the domain is paused by user
# SHUTDOWN: 4 - the domain is being shut down
# SHUTOFF: 5 - the domain is shut off
# CRASHED: 6 - the domain is crashed
# PMSUSPENDED: 7 - the domain is suspended by guest power management
# LAST: 8 NB: this enum value will increase over time as new events are added to the libvirt API. It reflects the last state supported by this version of the libvirt API.
vmname="$1"
[ "$vmname" = '' ] && printf 'you must set $vmname\n' && exit 1
if printf "$vmname" | grep -vqE '^(cvm|capsul)-[a-z0-9]{10}$'; then
printf 'vmname %s must match ^capsul-[a-z0-9]{10}$\n' "$vmname"
exit 1
fi
state="$(virsh domstats $vmname | grep state.state | cut -d '=' -f 2)"
[ "$state" = '' ] && printf 'state was not detected. must match ^[0-8]$\n' && exit 1
if printf "$state" | grep -vqE '^[0-8]$'; then
printf 'state %s must match ^[0-8]$\n' "$state"
exit 1
fi
case "$state" in
1) virsh reboot "$vmname" > /dev/null ;;
2) printf '%s cannot be rebooted while it is blocked\n' "$vmname" ;;
37) printf '%s cannot be rebooted while it is paused\n' "$vmname" ;;
4) printf '%s cannot be rebooted while it is shutting down\n' "$vmname" ;;
56) printf '%s cannot be rebooted while it is stopped\n' "$vmname" ;;
*) printf 'unknown script behavior. state: %s\n' "$state" ;;
esac

40
capsulflask/shell_scripts/start.sh Executable file
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#!/bin/sh -e
#
# start.sh - starts a capsul
# if it is already started, do nothing
# if it is stopping, do nothing
# State Key
# NOSTATE: 0 - no state
# RUNNING: 1 - the domain is running
# BLOCKED: 2 - the domain is blocked on resource
# PAUSED: 3 - the domain is paused by user
# SHUTDOWN: 4 - the domain is being shut down
# SHUTOFF: 5 - the domain is shut off
# CRASHED: 6 - the domain is crashed
# PMSUSPENDED: 7 - the domain is suspended by guest power management
# LAST: 8 NB: this enum value will increase over time as new events are added to the libvirt API. It reflects the last state supported by this version of the libvirt API.
vmname="$1"
[ "$vmname" = '' ] && printf 'you must set $vmname\n' && exit 1
if printf "$vmname" | grep -vqE '^(cvm|capsul)-[a-z0-9]{10}$'; then
printf 'vmname %s must match ^capsul-[a-z0-9]{10}$\n' "$vmname"
exit 1
fi
state="$(virsh domstats $vmname | grep state.state | cut -d '=' -f 2)"
[ "$state" = '' ] && printf 'state was not detected. must match ^[0-8]$\n' && exit 1
if printf "$state" | grep -vqE '^[0-8]$'; then
printf 'state %s must match ^[0-8]$\n' "$state"
exit 1
fi
case "$state" in
1) printf '%s is already running\n' "$vmname" ;;
4) printf '%s cannot be started while it is shutting down\n' "$vmname" ;;
[235-7]) virsh start "$vmname" > /dev/null ;;
esac

39
capsulflask/shell_scripts/stop.sh Executable file
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#!/bin/sh -e
#
# stop.sh - stops a capsul
# if it is already stopped, do nothing
# State Key
# NOSTATE: 0 - no state
# RUNNING: 1 - the domain is running
# BLOCKED: 2 - the domain is blocked on resource
# PAUSED: 3 - the domain is paused by user
# SHUTDOWN: 4 - the domain is being shut down
# SHUTOFF: 5 - the domain is shut off
# CRASHED: 6 - the domain is crashed
# PMSUSPENDED: 7 - the domain is suspended by guest power management
# LAST: 8 NB: this enum value will increase over time as new events are added to the libvirt API. It reflects the last state supported by this version of the libvirt API.
vmname="$1"
[ "$vmname" = '' ] && printf 'you must set $vmname\n' && exit 1
if printf "$vmname" | grep -vqE '^(cvm|capsul)-[a-z0-9]{10}$'; then
printf 'vmname %s must match ^capsul-[a-z0-9]{10}$\n' "$vmname"
exit 1
fi
state="$(virsh domstats $vmname | grep state.state | cut -d '=' -f 2)"
[ "$state" = '' ] && printf 'state was not detected. must match ^[0-8]$\n' && exit 1
if printf "$state" | grep -vqE '^[0-8]$'; then
printf 'state %s must match ^[0-8]$\n' "$state"
exit 1
fi
case "$state" in
[1-37]) virsh shutdown "$vmname" > /dev/null ;;
[4-6]) printf '%s is already shutting down\n' "$vmname" ;;
esac