amazon-ec2
How to get an AWS EC2 instance ID from within that EC2 instance?
See the EC2 documentation on the subject. Run: wget -q -O – http://169.254.169.254/latest/meta-data/instance-id If you need programmatic access to the instance ID from within a script, die() { status=$1; shift; echo “FATAL: $*”; exit $status; } EC2_INSTANCE_ID=”`wget -q -O – http://169.254.169.254/latest/meta-data/instance-id || die \”wget instance-id has failed: $?\”`” Here is an example of a more … Read more
EC2: How to add port 8080 in security group?
You have to choose “Custom TCP rule” in the dropdown. Then you will be able to change the port to 8080.
Find region from within an EC2 instance
That URL (http://169.254.169.254/latest/dynamic/instance-identity/document) doesn’t appear to work anymore. I get a 404 when I tried to use it. I have the following code which seems to work though: EC2_AVAIL_ZONE=`curl -s http://169.254.169.254/latest/meta-data/placement/availability-zone` EC2_REGION=”`echo \”$EC2_AVAIL_ZONE\” | sed ‘s/[a-z]$//’`”