allow for multiple load balancers
This commit is contained in:
parent
2b0693803d
commit
5feaf83e57
|
@ -103,7 +103,11 @@ asg_initial_desired_capacity=`echo "$asg_result" | grep ^AUTO-SCALING-GROUP | cu
|
|||
asg_temporary_desired_capacity=$((asg_initial_desired_capacity+1))
|
||||
#gets list of Auto Scaling Group Instances - these Instances will be terminated
|
||||
asg_instance_list=`echo "$asg_result" | grep ^INSTANCE | cut -d "$delimiter" -f 2`
|
||||
asg_elb=`echo "$asg_result" | grep ^AUTO-SCALING-GROUP | cut -d "$delimiter" -f 6`
|
||||
|
||||
#builds an array of load balancers
|
||||
IFS=',' read -a asg_elbs <<< `echo "$asg_result" | grep ^AUTO-SCALING-GROUP | cut -d "$delimiter" -f 6`
|
||||
|
||||
|
||||
#if the max-size of the Auto Scaling Group is zero there is no reason to run
|
||||
if [[ $asg_initial_max_size -eq 0 ]]
|
||||
then echo "$asg_group_name has a max-size of 0. As the Auto Scaling Group \"$asg_group_name\" has no active Instances there is no reason to run." ; exit 79
|
||||
|
@ -129,8 +133,10 @@ as-update-auto-scaling-group $asg_group_name --region $region --desired-capacity
|
|||
#and begin recycling instances
|
||||
for instance_selected in $asg_instance_list
|
||||
do
|
||||
all_instances_inservice=false
|
||||
|
||||
#the while loop below sleeps for the auto scaling group to have an InService capacity that is equal to the desired-capacity + 1
|
||||
while [[ $inservice_instance_count -lt $asg_temporary_desired_capacity ]]
|
||||
while [[ !$all_instances_inservice ]]
|
||||
do
|
||||
if [[ $inservice_time_taken -gt $inservice_time_allowed ]]
|
||||
then echo "During the last $inservice_time_allowed seconds the InService capacity of the $asg_group_name Auto Scaling Group did not meet the Auto Scaling Group's desired capacity of $asg_temporary_desired_capacity." 1>&2
|
||||
|
@ -143,22 +149,35 @@ do
|
|||
|
||||
exit 79
|
||||
fi
|
||||
inservice_instance_list=`elb-describe-instance-health $asg_elb --region $region --show-long | grep InService`
|
||||
inservice_instance_count=`echo "$inservice_instance_list" | wc -l`
|
||||
|
||||
for elb in "${asg_elbs[@]}"
|
||||
do
|
||||
inservice_instance_list=`elb-describe-instance-health $elb --region $region --show-long | grep InService`
|
||||
inservice_instance_count=`echo "$inservice_instance_list" | wc -l`
|
||||
|
||||
[[ $inservice_instance_count -lt $asg_temporary_desired_capacity ]] && all_instances_inservice=false || all_instances_inservice=true
|
||||
done
|
||||
|
||||
#sleeps a particular amount of time
|
||||
sleep $inservice_polling_time
|
||||
|
||||
inservice_time_taken=$(($inservice_time_taken+$inservice_polling_time))
|
||||
echo $inservice_instance_count "Instances are InService status. $asg_temporary_desired_capacity Instances are required to terminate the next instance. $inservice_time_taken seconds have elapsed while waiting for an Instance to reach InService status."
|
||||
#if any status in $elbinstsancehealth != "InService" repeat
|
||||
#if any status in $elbinstancehealth != "InService" repeat
|
||||
done
|
||||
|
||||
#if the
|
||||
echo "$asg_group_name has reached a desired-capacity of $asg_temporary_desired_capacity. $app_name can now remove an Instance from service."
|
||||
|
||||
inservice_instance_count=0
|
||||
inservice_time_taken=0
|
||||
#remove instance from ELB - this ensures no traffic will be directed at an instance that will be terminated
|
||||
echo "Instance $instance_selected will now be deregistered from ELB \"$asg_elb.\""
|
||||
elb-deregister-instances-from-lb $asg_elb --region $region --instances $instance_selected > /dev/null
|
||||
echo "Instance $instance_selected will now be deregistered from ELBs \"${asg_elbs[@]}.\""
|
||||
for elb in "${asg_elbs[@]}"
|
||||
do
|
||||
elb-deregister-instances-from-lb $elb --region $region --instances $instance_selected > /dev/null
|
||||
done
|
||||
|
||||
#sleep for "elb_timeout" seconds so that the instance can complete all processing before being terminated
|
||||
sleep $elb_timeout
|
||||
#terminates a pre-existing instance within the autoscaling group
|
||||
|
|
Loading…
Reference in New Issue
Block a user