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AWS: Delete ASGs by following instances 

We can't tag ASGs, but we can see what instances are running in an ASG,
and we can match those by our tags.

So look for our running instances, and look for the ASGs that created
them, and delete those.

This can be defeated (most notably if users change the ASG size to 0),
but it is safer that other deletion methods.
pull/6/head
Justin Santa Barbara 2015-11-03 11:50:50 -05:00
parent cf86ecc604
commit 41743ce87a
1 changed files with 15 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
cluster/aws/util.sh
View File

@ -1198,21 +1198,26 @@ function kube-down {
done done
fi fi
if [[ -n $(${AWS_ASG_CMD} --output text describe-auto-scaling-groups --auto-scaling-group-names ${ASG_NAME} --query AutoScalingGroups[].AutoScalingGroupName) ]]; then
echo "Deleting auto-scaling group: ${ASG_NAME}"
${AWS_ASG_CMD} delete-auto-scaling-group --force-delete --auto-scaling-group-name ${ASG_NAME}
fi
if [[ -n $(${AWS_ASG_CMD} --output text describe-launch-configurations --launch-configuration-names ${ASG_NAME} --query LaunchConfigurations[].LaunchConfigurationName) ]]; then
echo "Deleting auto-scaling launch configuration: ${ASG_NAME}"
${AWS_ASG_CMD} delete-launch-configuration --launch-configuration-name ${ASG_NAME}
fi
echo "Deleting instances in VPC: ${vpc_id}" echo "Deleting instances in VPC: ${vpc_id}"
instance_ids=$($AWS_CMD --output text describe-instances \ instance_ids=$($AWS_CMD --output text describe-instances \
--filters Name=vpc-id,Values=${vpc_id} \ --filters Name=vpc-id,Values=${vpc_id} \
Name=tag:KubernetesCluster,Values=${CLUSTER_ID} \ Name=tag:KubernetesCluster,Values=${CLUSTER_ID} \
--query Reservations[].Instances[].InstanceId) --query Reservations[].Instances[].InstanceId)
asg_groups=$($AWS_CMD --output text describe-instances \
--query 'Reservations[].Instances[].Tags[?Key==`aws:autoscaling:groupName`].Value[]' \
--instance-ids ${instance_ids})
for asg_group in ${asg_groups}; do
if [[ -n $(${AWS_ASG_CMD} --output text describe-auto-scaling-groups --auto-scaling-group-names ${asg_group} --query AutoScalingGroups[].AutoScalingGroupName) ]]; then
echo "Deleting auto-scaling group: ${asg_group}"
${AWS_ASG_CMD} delete-auto-scaling-group --force-delete --auto-scaling-group-name ${asg_group}
fi
if [[ -n $(${AWS_ASG_CMD} --output text describe-launch-configurations --launch-configuration-names ${asg_group} --query LaunchConfigurations[].LaunchConfigurationName) ]]; then
echo "Deleting auto-scaling launch configuration: ${asg_group}"
${AWS_ASG_CMD} delete-launch-configuration --launch-configuration-name ${asg_group}
fi
done
if [[ -n "${instance_ids}" ]]; then if [[ -n "${instance_ids}" ]]; then
$AWS_CMD terminate-instances --instance-ids ${instance_ids} > $LOG $AWS_CMD terminate-instances --instance-ids ${instance_ids} > $LOG
echo "Waiting for instances to be deleted" echo "Waiting for instances to be deleted"