unused aws instace and vpcs cleanup

Signed-off-by: shiva kumar <shivaku@nvidia.com>

scripts/awsvpcscleanup.sh

@@ -40,6 +40,32 @@ for eip in $eips; do
     aws ec2 release-address --allocation-id "$eip"
 done
 
+# Detach and Delete Security Groups
+security_groups=$(aws ec2 describe-security-groups \
+    --filters Name=vpc-id,Values=$vpc_id \
+    --query "SecurityGroups[?GroupName!='default'].GroupId" \
+    --output text | tr -d '\r' | tr '\n' ' ')
+
+for sg in $security_groups; do
+    echo "Processing security group: $sg"
+    # Check and detach associated ENIs (Elastic Network Interfaces)
+    enis=$(aws ec2 describe-network-interfaces \
+        --filters Name=group-id,Values=$sg \
+        --query "NetworkInterfaces[].NetworkInterfaceId" \
+        --output text | tr -d '\r' | tr '\n' ' ')
+    for eni in $enis; do
+        echo "Detaching security group from network interface: $eni"
+        aws ec2 modify-network-interface-attribute \
+            --network-interface-id "$eni" \
+            --groups "$(aws ec2 describe-security-groups \
+                --query 'SecurityGroups[?GroupName==`default`].GroupId' \
+                --output text)"
+    done
+    # Delete the security group
+    echo "Deleting security group: $sg"
+    aws ec2 delete-security-group --group-id "$sg"
+done
+
 # Delete Route Tables
 route_tables=$(aws ec2 describe-route-tables \
     --filters Name=vpc-id,Values=$vpc \
@@ -51,16 +77,6 @@ for rt in $route_tables; do
         --route-table-ids "$rt" \
         --query "RouteTables[0].Associations[]" \
         --output json)
-
-    # Check if it's the main route table
-    is_main=$(echo "$associations" | jq -r '.[] | select(.Main==true) | .RouteTableAssociationId')
-
-    if [ -n "$is_main" ]; then
-        echo "Skipping main route table: $rt (Association ID: $is_main)"
-        continue
-    fi
-
-    # Disassociate all non-main associations
     for assoc in $(echo "$associations" | jq -r '.[] | select(.Main==false) | .RouteTableAssociationId'); do
         echo "Disassociating route table association: $assoc"
         aws ec2 disassociate-route-table --association-id "$assoc"