update increase disk size script to work with imdsv2

Author: suhussai

Cloud9Setup/increase-disk-size.sh

@@ -3,9 +3,12 @@
 # Specify the desired volume size in GiB as a command line argument. If not specified, default to 50 GiB.
 SIZE=50
 
+# generate token to access instance metadata
+TOKEN=$(curl -X PUT "http://169.254.169.254/latest/api/token" -H "X-aws-ec2-metadata-token-ttl-seconds: 5")
+
 # Get the ID of the environment host Amazon EC2 instance.
-INSTANCEID=$(curl http://169.254.169.254/latest/meta-data/instance-id)
-REGION=$(curl -s http://169.254.169.254/latest/meta-data/placement/availability-zone | sed 's/\(.*\)[a-z]/\1/')
+INSTANCEID=$(curl -H "X-aws-ec2-metadata-token: $TOKEN" http://169.254.169.254/latest/meta-data/instance-id)
+REGION=$(curl -H "X-aws-ec2-metadata-token: $TOKEN" -s http://169.254.169.254/latest/meta-data/placement/availability-zone | sed 's/\(.*\)[a-z]/\1/')
 
 # Get the ID of the Amazon EBS volume associated with the instance.
 VOLUMEID=$(aws ec2 describe-instances \