capsul-flask/capsulflask/shell_scripts/get.sh
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shell_scripts: Fix reporting of VM IP addresses
The shell script which gets informations from libvirt incorrectly
matches virsh output lines which contain VMs' public IPv4 addresses.
It doesn't work when there are multiple address families which breaks
reporting of IPv4 address when a VM also has an IPv6 address and virsh
happen to output that one first.

This commit changes it to explicitely match the first ipv4 address instead.
2021-08-04 00:56:55 +00:00

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#!/bin/sh -e
vmname="$1"
if echo "$vmname" | grep -vqE '^(cvm|capsul)-[a-z0-9]{10}$'; then
echo "vmname $vmname must match "'"^capsul-[a-z0-9]{10}$"'
exit 1
fi
# this will let us know if the vm exists or not
exists="false"
state="unknown"
if virsh domuuid "$vmname" | grep -vqE '^[\t\s\n]*$'; then
exists="true"
state_code="$(virsh domstats $vmname | grep state.state | cut -d '=' -f 2)"
if printf "$state_code\n" | grep -vqE '^[0-8]$'; then
printf 'state_code was not detected. state_code %s must match ^[0-8]$\n' "$state_code"
exit 1
fi
case "$state_code" in
1) state="running" ;;
2) state="blocked" ;;
4) state="stopping" ;;
6) state="crashed" ;;
[357]) state="stopped" ;;
esac
fi
# this gets the ipv4
ipv4="$(virsh domifaddr "$vmname" | awk '/ipv4/ {print $4}' | cut -d'/' -f1)"
echo "$exists $state $ipv4"