Define IAM permissions required for creating AWS instances

[ivyleavedtoadflax]

Is it possible to publish an IAM policy detailing the minimal set of permissions required to run cml-runners on AWS?

It would be good to lock down the permissions, and i thought I would ask before I start with trial and error!

[0x2b3bfa0]

We don't have yet a public reference for permissions, but this template should be a good starting point:

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": [
        "ec2:RunInstances"
      ],
      "Resource": [
        "arn:aws:ec2:*::image/*",
        "arn:aws:ec2:*:{{account}}:instance/*",
        "arn:aws:ec2:*:{{account}}:key-pair/*",
        "arn:aws:ec2:*:{{account}}:network-interface/*",
        "arn:aws:ec2:*:{{account}}:security-group/*",
        "arn:aws:ec2:*:{{account}}:subnet/*",
        "arn:aws:ec2:*:{{account}}:volume/*"
      ]
    },
    {
      "Effect": "Allow",
      "Action": [
        "ec2:ImportKeyPair",
        "ec2:CreateKeyPair",
        "ec2:CreateTags",
        "ec2:DeleteKeyPair",
        "ec2:RequestSpotInstances"
      ],
      "Resource": "*",
      "Condition": {
        "StringEquals": {
          "ec2:Region": "{{region}}"
        }
      }
    },
    {
      "Effect": "Allow",
      "Action": [
        "config:ListDiscoveredResources",
        "ec2:DescribeImages",
        "ec2:DescribeInstances",
        "ec2:DescribeSecurityGroups",
        "ec2:CreateSecurityGroup",
        "ec2:AuthorizeSecurityGroupIngress",
        "ec2:AuthorizeSecurityGroupEgress",
        "ec2:DescribeSpotInstanceRequests",
        "ec2:DescribeSubnets",
        "ec2:DescribeVpcs",
        "sts:DecodeAuthorizationMessage"
      ],
      "Resource": "*"
    },
    {
      "Effect": "Allow",
      "Action": [
        "ec2:Describe*",
        "ec2:TerminateInstances"
      ],
      "Resource": [
        "arn:aws:ec2:*:{{account}}:instance/*"
      ],
      "Condition": {
        "StringEquals": {
          "ec2:Region": "{{region}}"
        }
      }
    }
  ]
}

[ivyleavedtoadflax]

Wow that was quick. Thanks 👍

[DavidGOrtega]

duplicated of iterative/terraform-provider-iterative#75