terraform.aws-baseline-infra/modules/security_identity_compliance/iam-user/main.tf

resource "aws_iam_user" "iam-user" {
  name          = var.iam-user-name
  tags          = var.default-tags
  force_destroy = true
}

resource "aws_iam_access_key" "iam-user-access-key" {
  count = var.create-access-key ? 1 : 0
  user  = aws_iam_user.iam-user.name
}

resource "aws_iam_user_policy" "iam-user-policy" {
  count = var.create-group ? 0 : 1
  name   = var.iam-user-policy-name
  user   = aws_iam_user.iam-user.name
  policy = var.iam-user-policy
}

resource "aws_iam_user_policy_attachment" "iam-user-managed-policies" {
  count = var.create-group ? 0: length(var.managed-policy-arns)
  user       = aws_iam_user.iam-user.name
  policy_arn = var.managed-policy-arns[count.index]
}

resource "random_password" "iam-user-pass" {
  count   = var.create-password ? 1 : 0
  length  = 20
  special = true
}

resource "aws_iam_user_login_profile" "iam-user-profile" {
  count = var.create-password ? 1 : 0
  user  = aws_iam_user.iam-user.name
}

resource "aws_secretsmanager_secret" "secretmanager" {
  count       = var.create-access-key || var.create-password ? 1 : 0
  name        = "IamUserCredential-${var.iam-user-name}"
  description = "AWS resource credential"
  tags        = var.default-tags
}

resource "aws_secretsmanager_secret_version" "iam-user-secret" {
  count     = var.create-access-key || var.create-password ? 1 : 0
  secret_id = aws_secretsmanager_secret.secretmanager[0].id
  secret_string = jsonencode(
    { "ConsolePassword" : length(random_password.iam-user-pass) > 0 ? random_password.iam-user-pass[0].result : "NotSet",
      "AccessKeyId" : length(aws_iam_access_key.iam-user-access-key) > 0 ? aws_iam_access_key.iam-user-access-key[0].id : "NotSet",
      "KeySecret" : length(aws_iam_access_key.iam-user-access-key) > 0 ? aws_iam_access_key.iam-user-access-key[0].secret : "NotSet"
  })
}

resource aws_iam_group iam-group {
  count = var.create-group ? 1 : 0
  name = var.iam-group-name
}

resource aws_iam_group_membership new-group-membership {
  count = length(aws_iam_group.iam-group)
  name = aws_iam_group.iam-group[0].name
  group = aws_iam_group.iam-group[0].name
  users = [aws_iam_user.iam-user.name]
}

resource aws_iam_group_membership existing-group-membership {
  count = length(var.add-to-groups)
  name = var.add-to-groups[count.index]
  group = var.add-to-groups[count.index]
  users = [aws_iam_user.iam-user.name]
}

resource "aws_iam_group_policy" "iam-group-policy" {
  count = var.create-group ? 1 : 0
  name   = "SelfServiceAccess"
  group   = aws_iam_group.iam-group[0].name
  policy = var.iam-user-policy
}

resource "aws_iam_group_policy_attachment" "iam-group-managed-policies" {
  count = var.create-group ? length(var.managed-policy-arns) : 0
  group       = aws_iam_group.iam-group[0].name
  policy_arn = var.managed-policy-arns[count.index]
}