AWS policy for Packer including S3 access

packer-iam-policy.json

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "VisualEditor0",
            "Effect": "Allow",
            "Action": [
                "ec2:AttachVolume",
                "ec2:AuthorizeSecurityGroupIngress",
                "ec2:DeregisterImage",
                "ec2:DeleteSnapshot",
                "ec2:DescribeInstances",
                "ec2:CreateKeyPair",
                "ec2:DescribeRegions",
                "ec2:CreateImage",
                "ec2:CopyImage",
                "ec2:ModifyImageAttribute",
                "ec2:DescribeSnapshots",
                "ec2:DeleteVolume",
                "ec2:ModifySnapshotAttribute",
                "ec2:CreateSecurityGroup",
                "ec2:DescribeVolumes",
                "ec2:CreateSnapshot",
                "ec2:ModifyInstanceAttribute",
                "ec2:DetachVolume",
                "ec2:TerminateInstances",
                "ec2:DescribeTags",
                "ec2:CreateTags",
                "ec2:RegisterImage",
                "ec2:RunInstances",
                "ec2:StopInstances",
                "ec2:DescribeSecurityGroups",
                "ec2:CreateVolume",
                "ec2:DescribeImages",
                "ec2:GetPasswordData",
                "ec2:DescribeImageAttribute",
                "ec2:DeleteSecurityGroup",
                "ec2:DescribeSubnets",
                "ec2:DeleteKeyPair"
            ],
            "Resource": "*"
        },
        {
            "Sid": "VisualEditor1",
            "Effect": "Allow",
            "Action": [
                "s3:GetObject",
                "iam:PassRole",
                "s3:ListBucket"
            ],
            "Resource": [
                "arn:aws:s3:::sql-server-install-media/*",
                "arn:aws:s3:::sql-server-install-media",
                "arn:aws:iam::<your_account_id>:role/packer-role"
            ]
        }
    ]
}