Friday, April 15, 2022

[SOLVED] Syntax error in EC2 Image Builder component

Issue

I was writing terraform code for ec2 image builder component. And getting such errors:

CmdExecution: Stderr: which: no sw_vers in (/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin)
sudo: unknown user: mkdir
sudo: unable to initialize policy plugin

The code looks like this:

"phases":
- "name": "build"
  "steps":
  - "action": "ExecuteBash"
    "inputs":
      "commands":
      - "export RUNNER_ALLOW_RUNASROOT='1'"
      - "yum install -y jq"
      - "export RUNNER_CFG_PAT=ghp_fsdfsdfsdfsdfsdfsdfsdfd"
      - "curl -s https://raw.githubusercontent.com/actions/runner/main/scripts/create-latest-svc.sh
        | bash -s -- -s githubuser/githubrepo -n githubrunner -l prod"
    "name": "example"
    "onFailure": "Continue"
"schemaVersion": 1

Previously I thought that it's because of root user execution so I added this line:

"export RUNNER_ALLOW_RUNASROOT='1'"

but event though that is not working Do you have some ideas how to troubleshoot that

PS. terraform code:

resource "aws_imagebuilder_component" "example" {
  data = yamlencode({
    phases = [{
      name = "build"
      steps = [{
        action = "ExecuteBash"
        inputs = {
          commands = ["export RUNNER_ALLOW_RUNASROOT='1'", "yum install -y jq", "export RUNNER_CFG_PAT=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", "curl -s https://raw.githubusercontent.com/actions/runner/main/scripts/create-latest-svc.sh | bash -s -- -s githubuser/githubrepo -n githubrunner -l prod"]
        }
        name      = "example"
        onFailure = "Continue"
      }]
    }]
    schemaVersion = 1.0
  })
  name     = "example33"
  platform = "Linux"
  version  = "1.0.0"
}

Solution

I do not have much knowlege of terraform but looking at your code, it looked like you had missed initializing svc_user which was used by your script to do various stuff e.g create a directory where it used to fail and as the sv_user was 'null'. It would run sudo -u ${svc_user} mkdir runner as sudo -u mkdir runner meaning do something as user mkdir. It seems like you are passing root as svc_user now which has resolved your issue.



Answered By - Riz
Answer Checked By - Senaida (WPSolving Volunteer)
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