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iam.tf
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iam.tf
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resource "aws_iam_role" "transfer" {
for_each = toset(var.usernames)
name = "${local.prefix_kebab}transfer-user-iam-role-${each.key}"
assume_role_policy = <<EOF
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Principal": {
"Service": "transfer.amazonaws.com"
},
"Action": "sts:AssumeRole"
}
]
}
EOF
}
resource "aws_iam_role_policy" "transfer" {
for_each = toset(var.usernames)
name = "${local.prefix_kebab}transfer-user-iam-policy-${each.key}"
role = aws_iam_role.transfer[each.key].id
policy = <<-POLICY
{
"Version": "2012-10-17",
"Statement": [
{
"Sid": "AllowListingOfUserFolder",
"Action": [
"s3:ListBucket",
"s3:GetBucketLocation"
],
"Effect": "Allow",
"Resource": [
"${aws_s3_bucket.sftp.arn}"
],
"Condition": {
"StringLike": {
"s3:prefix": [
"${each.key}/*",
"${each.key}"
]
}
}
},
{
"Sid": "HomeDirObjectAccess",
"Effect": "Allow",
"Action": [
"s3:PutObject",
"s3:GetObject",
"s3:DeleteObjectVersion",
"s3:DeleteObject",
"s3:GetObjectVersion"
],
"Resource": [
"${aws_s3_bucket.sftp.arn}/${each.key}",
"${aws_s3_bucket.sftp.arn}/${each.key}/*"
]
},
{
"Sid": "EncryptionKeyAccess",
"Action": [
"kms:Decrypt",
"kms:Encrypt",
"kms:GenerateDataKey",
"kms:DescribeKey",
"kms:ReEncrypt"
],
"Effect": "Allow",
"Resource": "${aws_kms_key.s3_key.arn}"
}
]
}
POLICY
}