Question 18599 in Amazon Web Sevices Question posted in
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Could not get instance id in ec2 console – Amazon Web Sevices

I’m trying to get ec2 instance id and assign it into environment variable with a script.
I found some command that supposed to give me the id but they don’t work.

The curl command returns nothing:
curl command,
I tried this way also: export INSTANCE_ID=`curl -s http://169.254.169.254/latest/meta-data/instance-id, but the variable is empty.

The cat /sys/devices/virtual/dmi/id/board_asset_tag command prints the id, but when I try to assign it to the variable, I get Permission Denied error.

Any ideas why curl returns nothing, or any other way to get the instance id?
Thanks

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2

Answers


  1. 0

    If you have cloud-utils on your machine, you can try

    INSTANCE_ID=$(ec2metadata --instance-id)
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  2. 0

    As per comment the problem was solved by using the ec2-metadata tool

    ec2-metadata -i

    On the Amazon Linux AMI, there is a tool already pre-installed called ec2-metadata which can be run from the command line interface (CLI).

    If its other than amazon ami then install it first and then use it

    # Download the ec2-metadata script
wget http://s3.amazonaws.com/ec2metadata/ec2-metadata

# Modify the permission to execute the bash script
chmod +x ec2-metadata
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