Question

6

Where are the logs for my user-data script? cloud-init

rated 0 times [ 6] [ 0] / answers: 1 / hits: 14455 / 2 Years ago, thu, may 19, 2022, 7:29:49

If I paste a shell script into the user-data box when starting the standard Ubuntu AMI on EC2, I'm using cloud-init, am I not? My question is where does it log the output of such a script? Do I have to do something to turn logging on? I can't find logs for it anywhere.

Ubuntu-raring-13.04-amd64-server-20130423 (ami-c30360aa)

Thanks!

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answered 2 Years ago raacket · Accepted Answer

Output of your program is available on the console log. You can get that either from the aws console, or by calling the GetConsoleOutput via the api (or with a tool such as euca-get-console-output or ec2-get-console-output).

Additionally, you can tell cloud-init to log the output of those commands by providing user-data that tells it to.

#cloud-config

output: {all: '| tee -a /var/log/cloud-init-output.log'}

You can provide multi-part input to give both '#!' scripts and cloud-config as shown above. See https://help.ubuntu.com/community/CloudInit for an example of how to do that.