From 2a07703cafcd7695d66d20c5f72f60cf7297ed46 Mon Sep 17 00:00:00 2001
From: shiva kumar <shivaku@nvidia.com>
Date: Tue, 17 Dec 2024 12:56:38 +0530
Subject: [PATCH] unused aws instace and vpcs cleanup

Signed-off-by: shiva kumar <shivaku@nvidia.com>
---
 scripts/awsvpcscleanup.sh | 57 ++++++++++++++++++++-------------------
 1 file changed, 29 insertions(+), 28 deletions(-)

diff --git a/scripts/awsvpcscleanup.sh b/scripts/awsvpcscleanup.sh
index 9ea66e80..1a51a636 100755
--- a/scripts/awsvpcscleanup.sh
+++ b/scripts/awsvpcscleanup.sh
@@ -8,7 +8,7 @@ export vpc=$1
 
 echo "Start Deleting  VPC: $vpc resource"
 
-# Detach Internet Gateway
+# Delete Internet Gateway
 internet_gateways=$(aws ec2 describe-internet-gateways \
     --filters Name=attachment.vpc-id,Values=$vpc \
     --query "InternetGateways[].InternetGatewayId" \
@@ -20,15 +20,24 @@ for igw in $internet_gateways; do
     aws ec2 delete-internet-gateway --internet-gateway-id "$igw"
 done
 
-# Delete Subnets
-subnets=$(aws ec2 describe-subnets \
-    --filters Name=vpc-id,Values=$vpc \
-    --query "Subnets[].SubnetId" \
+# Delete NAT Gateways
+nat_gateways=$(aws ec2 describe-nat-gateways \
+    --filter Name=vpc-id,Values=$vpc \
+    --query "NatGateways[].NatGatewayId" \
     --output text | tr -d '\r' | tr '\n' ' ')
+for ngw in $nat_gateways; do
+    echo "Deleting NAT Gateway: $ngw"
+    aws ec2 delete-nat-gateway --nat-gateway-id "$ngw"
+done
 
-for subnet in $subnets; do
-    echo "Deleting subnet: $subnet"
-    aws ec2 delete-subnet --subnet-id "$subnet"
+# Delete Elastic IPs
+eips=$(aws ec2 describe-addresses \
+  --filters Name=domain,Values=vpc \
+  --query "Addresses[].[AllocationId,Association.VpcId]" \
+  --output text | grep "$vpc" | awk '{print $1}' | tr -d '\r' | tr '\n' ' ')
+for eip in $eips; do
+    echo "Releasing Elastic IP: $eip"
+    aws ec2 release-address --allocation-id "$eip"
 done
 
 # Delete Route Tables
@@ -38,9 +47,21 @@ route_tables=$(aws ec2 describe-route-tables \
     --output text | tr -d '\r' | tr '\n' ' ')
 for rt in $route_tables; do
     echo "Deleting route table: $rt"
+    aws ec2 disassociate-route-table --association-id "$rt"
     aws ec2 delete-route-table --route-table-id "$rt"
 done
 
+# Delete Subnets
+subnets=$(aws ec2 describe-subnets \
+    --filters Name=vpc-id,Values=$vpc \
+    --query "Subnets[].SubnetId" \
+    --output text | tr -d '\r' | tr '\n' ' ')
+
+for subnet in $subnets; do
+    echo "Deleting subnet: $subnet"
+    aws ec2 delete-subnet --subnet-id "$subnet"
+done
+
 # Delete Network Interfaces
 eni_ids=$(aws ec2 describe-network-interfaces \
     --filters Name=vpc-id,Values=$vpc \
@@ -51,26 +72,6 @@ for eni in $eni_ids; do
     aws ec2 delete-network-interface --network-interface-id "$eni"
 done
 
-# Delete NAT Gateways
-nat_gateways=$(aws ec2 describe-nat-gateways \
-    --filter Name=vpc-id,Values=$vpc \
-    --query "NatGateways[].NatGatewayId" \
-    --output text | tr -d '\r' | tr '\n' ' ')
-for ngw in $nat_gateways; do
-    echo "Deleting NAT Gateway: $ngw"
-    aws ec2 delete-nat-gateway --nat-gateway-id "$ngw"
-done
-
-# Delete Elastic IPs
-eips=$(aws ec2 describe-addresses \
-  --filters Name=domain,Values=vpc \
-  --query "Addresses[].[AllocationId,Association.VpcId]" \
-  --output text | grep "$vpc" | awk '{print $1}' | tr -d '\r' | tr '\n' ' ')
-for eip in $eips; do
-    echo "Releasing Elastic IP: $eip"
-    aws ec2 release-address --allocation-id "$eip"
-done
-
 echo "All resource Deleted for VPC: $vpc , now delete vpc"
 
 if aws ec2 delete-vpc --vpc-id $vpc; then