CODEWITHSUNDEEP
amazon-web-servicesaws-cloudformation
Oliver Bayes-Shelton
Oliver Bayes-Shelton

Reputation: 6292

AWS::CloudFormation::Init yum update fails

Got a little problem, so part of my json file I want to run a command to update all the packages the following command is:

        "commands" : {
          "update_yum_packages" : {
            "command" : "sudo yum update -y"
          }
        },

Now if I remove this from my json file the stack will create with no issues, however when I add the command I get an error from AWS::CloudFormation::WaitCondition. I have set the timeout to 1200 is there something clearly wrong here ?

I can run the command fine once I ssh onto the new instance.

Upvotes: 0

Views: 2610

Answers (2)

xenoterracide
xenoterracide

Reputation: 16837

This yaml should do the same thing without you having to directly call sudo

#cloud-config
---
package_update: true
package_upgrade: true
package_reboot_if_required: true

Upvotes: 0

huelbois
huelbois

Reputation: 7012

You can have a look at the log files in /var/log/cloud-init-output.log.

You will see that it complains about running a sudo command without a tty:

cloud-init-output.log:sudo: sorry, you must have a tty to run sudo

The user data is run as root, you don't need to use "sudo". And using sudo will fail, and make the cloud-init process fail.

So just use:

    "commands" : {
      "update_yum_packages" : {
        "command" : "yum update -y"
      }
    },

Upvotes: 3

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