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Utilise tags for register-deregister-from-nlb script, instead of target group name.

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Thomas Stokes
2024-03-19 21:00:00 +01:00
parent 97fe2bfdf0
commit 5a0f5781a3
1 changed files with 2 additions and 1 deletions
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configuration/environments_scripts/reverse_proxy/files/usr/local/bin/register-deregister-from-nlb-target-group.sh
+2 -1
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@@ -10,7 +10,8 @@ if [[ -z "$selfIp" || -z "$availabilityZone" ]]; then
availabilityZone=$(cat /var/cache/availability-zone)
fi
nlbName="HTTP-to-sapsailing-dot-com"
targetGroupArn=$(aws elbv2 describe-target-groups --name "${nlbName}" | jq -r ".TargetGroups[].TargetGroupArn")
# First we describe the target groups which are served by a load balancer, which has an ARN containing the substring "loadbalancer/net". Then, we get the tags of these target groups and iterate over the tag descriptions (a list of resourceArns paired with tags), selecting those resources which have a key "allReverseProxies". Finally we extract the resource ARN. Note: .[] means to iterate over an array.
targetGroupArn=$(aws elbv2 describe-tags --resource-arns $(aws elbv2 describe-target-groups | jq -r '.TargetGroups | .[] | select(.LoadBalancerArns | .[] | contains("loadbalancer/net") ) | .TargetGroupArn') | jq -r '.TagDescriptions | .[] | select(.Tags | any(.Key=="allReverseProxies") ) | .ResourceArn')
if [[ "$#" -eq 0 ]];then
echo "Use add-to-nlb OR remove-from-nlb as the first and only argument."
exit 2