ansible/roles/copr/backend/files/cleanup-vms-aws
2020-04-24 21:34:17 +02:00

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#! /bin/bash
set -e
test "$UID" != "0" || { echo "execute as copr user" && exit 1 ; }
something_found=false
dump_command ()
{
echo >&2 " -> $*"
"$@"
}
tracked()
{
name=$(redis-cli --scan --pattern "copr:backend:vm_instance:hset::$1")
test -n "$name"
}
old_enough()
{
# give them 1 hour
started=$(date --date="$1" +%s)
now=$(date +%s)
old_enough=$(( now - 3600 ))
test "$started" -le "$old_enough"
}
aws_command=(
aws ec2 describe-instances
--query "Reservations[].Instances[].{Id:InstanceId,Name:Tags[?Key=='Name']|[0].Value,Time:LaunchTime}"
--filters "Name=tag-key,Values=FedoraCopr,Name=tag-value,Values=copr"
"Name=instance-state-name,Values=running"
--output text
)
something_found=false
prefix=dev
case $(hostname) in
copr-be.*)
prefix=prod
;;
esac
while read -r aws_id vm_name launch_time; do
case $vm_name in
copr-$prefix-builder*)
something_found=true
# skip known VMs
tracked "$vm_name" && continue
# skip recently started VMs
if ! old_enough "$launch_time"; then
echo >&2 "$vm_name is not yet old enough: $launch_time"
continue
fi
# delete the rest
dump_command aws ec2 terminate-instances --instance-ids "$aws_id"
;;
*)
continue ;;
esac
done < <( "${aws_command[@]}" )
# fail if no VM was found (weird situation)
$something_found