Google Cloud Spanner Database IAM

google_spanner_database_iam (Terraform)

The Database IAM in Cloud Spanner can be configured in Terraform with the resource name google_spanner_database_iam. The following sections describe how to use the resource and its parameters.

Example Usage from GitHub

An example could not be found in GitHub.

Parameters

The following arguments are supported:

• database - (Required) The name of the Spanner database.

• instance - (Required) The name of the Spanner instance the database belongs to.

• member/members - (Required) Identities that will be granted the privilege in role. Each entry can have one of the following values:

  • allUsers: A special identifier that represents anyone who is on the internet; with or without a Google account.
  • allAuthenticatedUsers: A special identifier that represents anyone who is authenticated with a Google account or a service account.
  • user:[emailid]: An email address that represents a specific Google account. For example, alice@gmail.com or joe@example.com.
  • serviceAccount:[emailid]: An email address that represents a service account. For example, my-other-app@appspot.gserviceaccount.com.
  • group:[emailid]: An email address that represents a Google group. For example, admins@example.com.
  • domain:[domain]: A G Suite domain (primary, instead of alias) name that represents all the users of that domain. For example, google.com or example.com.

• role - (Required) The role that should be applied. Only one google_spanner_database_iam_binding can be used per role. Note that custom roles must be of the format [projects|organizations]/[parent-name]/roles/[role-name].

• policy_data - (Required only by google_spanner_database_iam_policy) The policy data generated by a google_iam_policy data source.

• project - (Optional) The ID of the project in which the resource belongs. If it is not provided, the provider project is used.

In addition to the arguments listed above, the following computed attributes are exported:

• etag - (Computed) The etag of the database's IAM policy.

Explanation in Terraform Registry

Three different resources help you manage your IAM policy for a Spanner database. Each of these resources serves a different use case:

• google_spanner_database_iam_policy: Authoritative. Sets the IAM policy for the database and replaces any existing policy already attached.

  Warning: It's entirely possibly to lock yourself out of your database using google_spanner_database_iam_policy. Any permissions granted by default will be removed unless you include them in your config.

• google_spanner_database_iam_binding: Authoritative for a given role. Updates the IAM policy to grant a role to a list of members. Other roles within the IAM policy for the database are preserved.
• google_spanner_database_iam_member: Non-authoritative. Updates the IAM policy to grant a role to a new member. Other members for the role for the database are preserved.

  Note: google_spanner_database_iam_policy cannot be used in conjunction with google_spanner_database_iam_binding and google_spanner_database_iam_member or they will fight over what your policy should be.

  Note: google_spanner_database_iam_binding resources can be used in conjunction with google_spanner_database_iam_member resources only if they do not grant privilege to the same role.