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Getting AWS EC2 instance id (instanceid) from within the ec2 instance

In general you can get a lot of instance metadata by accessing API on http://169.254.169.254/latest/meta-data/ That includes instance id. On generic Linux system, you can get the ID either using curl: curl http://169.254.169.254/latest/meta-data/instance-id or wget: wget -q -O - http://169.254.169.254/latest/meta-data/instance-id If you instance is based on Amazon Linux or have cloud-utils installed you can also run: ec2-metadata -i for instance id. more documentation on metadata is a available here: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-instance-metadata.html Provided by: Forthscale systems, cloud experts