2020-02-19 ec2, meta-data

less than 1 minute read

Yea it has been a long time since I wrote notes and things but I feel like there are some things to take note on.

EC2 things of interest

reading the userdata of an instance

There are plenty of times that I need to see what the userdata looks like of my instance. ssh into the box. curl http://169.254.169.254/latest/user-data simple as that

curl http://169.254.169.254/latest/user-data
#!/bin/bash
....

rerunning userdata

You should really never rerun userdata but if you are debugging things and need to do things. but if you want to do something terrible.

curl -sSL http://169.254.169.254/latest/user-data | bash

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