rbrto/LICENSE.txt

## export_func_main.py
import base64
import datetime
from googleapiclient import discovery


def export_database(data, context):
    """Background Cloud Function to be triggered by Pub/Sub.
    Args:
         data (dict): The dictionary with data specific to this type of event.
         context (google.cloud.functions.Context): The Cloud Functions event
         metadata.
    """
    sqladmin = discovery.build("sqladmin", "v1beta4", cache_discovery=False)
    utcnow = datetime.datetime.utcnow()
    (project, instance, bucket) = (
        base64.b64decode(data["data"]).decode("utf-8").split(":")
    )
    filename = "{0}/{1}/{2}_{3}.sql.gz".format(
        utcnow.year, utcnow.month, instance, utcnow.strftime("%Y%m%dT%H%M%SZ")
    )
    body = {
        "exportContext": {
            "kind": "sql#exportContext",
            "fileType": "SQL",
            "uri": "gs://{0}/{1}".format(bucket, filename),
        }
    }
    sqladmin.instances().export(project=project, instance=instance, body=body).execute()

## export_func_requirements.txt
cachetools==3.1.1
google-api-python-client==1.7.9
google-auth==1.6.3
google-auth-httplib2==0.0.3
httplib2==0.13.0
pyasn1==0.4.5
pyasn1-modules==0.2.5
rsa==4.0
six==1.12.0
uritemplate==3.0.0

## LICENSE.txt

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## main.tf
locals {
  labels = {
    env                  = "${var.env}"
    managed_by_terraform = "1"
  }

  apis = [
    "storage-api.googleapis.com",
    "sqladmin.googleapis.com",
    "servicenetworking.googleapis.com",
    "pubsub.googleapis.com",
    "cloudfunctions.googleapis.com",
    "cloudscheduler.googleapis.com",
    "storage-component.googleapis.com",
  ]

  network_project         = "${var.shared_vpc_project == "-" ? var.project_id : var.shared_vpc_project }"
  generated_proxy_sa_name = "${var.instance_name}-proxy"

  instance_name = "${var.instance_name}-${random_string.sql.result}"

  days_to_keep_exports = "${var.days_to_keep_exports < 90 ? 90 : var.days_to_keep_exports}"
}

locals {
  generated_exporter_sa_name = "${local.instance_name}-export"
}

locals {
  proxy_sa_name    = "${length(local.generated_proxy_sa_name) > 30 ? "${substr(var.instance_name, 0, 24)}-proxy" : local.generated_proxy_sa_name}"
  exporter_sa_name = "${length(local.generated_exporter_sa_name) > 30 ? "${substr(local.generated_exporter_sa_name, 0, 23)}-export" : local.generated_exporter_sa_name}"
}

locals {
  message_params = [
    "${var.project_id}",
    "${local.instance_name}",
    "${google_storage_bucket.exports.name}",
  ]
}

data "google_compute_network" "network" {
  name    = "${var.network_name}"
  project = "${local.network_project}"
}

resource "random_string" "sql" {
  length  = 4
  special = false
  upper   = false

  keepers {
    instance_name = "${var.instance_name}"
  }
}

resource "random_string" "func" {
  length  = 4
  special = false
  upper   = false

  keepers {
    instance_name = "${var.instance_name}"
  }
}

resource "google_project_service" "apis" {
  count              = "${length(local.apis)}"
  project            = "${var.project_id}"
  service            = "${element(local.apis, count.index)}"
  disable_on_destroy = false
}

resource "google_project_iam_custom_role" "cloudsql_export" {
  project     = "${var.project_id}"
  role_id     = "cloudsql.exporter"
  title       = "CloudSQL Exporter"
  description = "Allows triggering CloudSQL Exports to GCS."

  permissions = [
    "cloudsql.databases.get",
    "cloudsql.databases.list",
    "cloudsql.instances.export",
    "cloudsql.instances.get",
    "cloudsql.instances.list",
  ]
}

resource "google_sql_database_instance" "db" {
  name             = "${local.instance_name}"
  region           = "${var.gcp_region}"
  project          = "${var.project_id}"
  database_version = "MYSQL_5_7"

  settings {
    tier              = "${var.instance_type}"
    availability_type = "${var.highly_available ? "REGIONAL" : "ZONAL"}"
    disk_autoresize   = "${var.disk_autoresize}"
    disk_size         = "${var.disk_size}"
    disk_type         = "PD_SSD"
    user_labels       = "${local.labels}"

    backup_configuration {
      binary_log_enabled = true
      enabled            = "${var.backups_enabled}"
    }

    ip_configuration {
      ipv4_enabled        = true
      private_network     = "${data.google_compute_network.network.self_link}"
      require_ssl         = "${var.require_tls}"
      authorized_networks = "${var.authorized_networks}"
    }

    maintenance_window {
      day          = 7
      hour         = 3
      update_track = "stable"
    }

    database_flags {
      name  = "log_bin_trust_function_creators"
      value = "on"
    }
  }

  lifecycle {
    ignore_changes = [
      "settings.0.disk_size",
    ]
  }

  depends_on = [
    "google_project_service.apis",
  ]
}

resource "google_service_account" "sa" {
  account_id   = "${local.proxy_sa_name}"
  display_name = "CloudSQL Proxy - ${var.instance_name}"
  project      = "${var.project_id}"
}

resource "google_project_iam_member" "iam_member" {
  project = "${var.project_id}"
  role    = "roles/cloudsql.client"
  member  = "serviceAccount:${google_service_account.sa.email}"

  depends_on = [
    "google_project_service.apis",
  ]
}

resource "google_pubsub_topic" "exports" {
  project = "${var.project_id}"
  name    = "${local.instance_name}-exports"
  labels  = "${local.labels}"

  depends_on = [
    "google_project_service.apis",
  ]
}

resource "google_storage_bucket" "exports" {
  project            = "${var.project_id}"
  name               = "${local.instance_name}-exports"
  bucket_policy_only = true
  labels             = "${local.labels}"

  lifecycle_rule {
    action {
      type          = "SetStorageClass"
      storage_class = "NEARLINE"
    }

    condition {
      # Minimum age before an object can be cycled down.
      age        = 30
      with_state = "ANY"
    }
  }

  lifecycle_rule {
    action {
      type          = "SetStorageClass"
      storage_class = "COLDLINE"
    }

    condition {
      # Minimum age before an object can be cycled down.
      age        = 90
      with_state = "ANY"
    }
  }

  lifecycle_rule {
    action {
      type = "Delete"
    }

    condition {
      age        = "${local.days_to_keep_exports}"
      with_state = "ANY"
    }
  }

  versioning {
    enabled = true
  }

  depends_on = [
    "google_project_service.apis",
  ]
}

resource "google_storage_bucket_object" "func" {
  name   = "export_func/${local.instance_name}-export-function-${random_string.func.result}.zip"
  bucket = "${google_storage_bucket.exports.name}"
  source = "${path.module}/data/export_func.zip"

  lifecycle {
    ignore_changes = [
      "source",
    ]
  }
}

resource "google_service_account" "export_sa" {
  project      = "${var.project_id}"
  account_id   = "${local.exporter_sa_name}"
  display_name = "${local.instance_name} - Exporter"
}

resource "google_pubsub_topic_iam_member" "export_pubsub_perms" {
  project = "${var.project_id}"
  topic   = "${google_pubsub_topic.exports.id}"
  role    = "roles/pubsub.subscriber"
  member  = "serviceAccount:${google_service_account.export_sa.email}"
}

resource "google_storage_bucket_iam_member" "export_bucket_perms" {
  bucket = "${google_storage_bucket.exports.name}"
  role   = "roles/storage.objectCreator"
  member = "serviceAccount:${google_sql_database_instance.db.service_account_email_address}"
}

resource "google_project_iam_member" "cloudfunction_export" {
  project = "${var.project_id}"
  role    = "projects/${var.project_id}/roles/${google_project_iam_custom_role.cloudsql_export.role_id}"
  member  = "serviceAccount:${google_service_account.export_sa.email}"

  depends_on = [
    "google_project_service.apis",
  ]
}

resource "google_cloud_scheduler_job" "backup_schedule" {
  name        = "${local.instance_name}-export"
  region      = "${var.gcp_region}"
  description = "An export schedule for ${local.instance_name}"
  schedule    = "${var.export_schedule}"
  time_zone   = "UTC"

  pubsub_target {
    topic_name = "${google_pubsub_topic.exports.id}"
    data       = "${base64encode("${join(":", local.message_params)}")}"

    attributes {
      instance_name = "${local.instance_name}"
      bucket_name   = "${google_storage_bucket.exports.name}"
    }
  }

  retry_config {
    # Publishing to PubSub should never really fail, but just in case.
    retry_count          = 5
    max_backoff_duration = "3600s"
    max_doublings        = 5
    max_retry_duration   = "0s"
    min_backoff_duration = "10s"
  }

  lifecycle {
    ignore_changes = [
      "id",
    ]
  }
}

resource "google_cloudfunctions_function" "export_func" {
  name                  = "${local.instance_name}-export"
  description           = "Triggers database exports for ${local.instance_name}"
  available_memory_mb   = 128
  source_archive_bucket = "${google_storage_bucket.exports.name}"
  source_archive_object = "${google_storage_bucket_object.func.output_name}"
  runtime               = "python37"
  entry_point           = "export_database"
  region                = "${var.gcp_region}"
  service_account_email = "${google_service_account.export_sa.email}"
  labels                = "${local.labels}"

  event_trigger {
    event_type = "providers/cloud.pubsub/eventTypes/topic.publish"
    resource   = "${google_pubsub_topic.exports.name}"
  }
}

## providers.tf
provider "google" {
  version = "~> 2.0"
  region  = "${var.gcp_region}"
  project = "${var.project_id}"
}

provider "random" {
  version = "~> 2.1"
}

## variables.tf
variable "gcp_region" {
  type        = "string"
  description = "The GCP region to create the database in."
}

variable "project_id" {
  type        = "string"
  description = "The project ID to use in GCP."
}

variable "env" {
  type        = "string"
  description = "The environment tier that this represents. Should be one of 'dev', 'qa', 'staging', 'production', or 'mgmt'."
  default     = "dev"
}

variable "instance_name" {
  type        = "string"
  description = "The name of the instance. Must only include lowercase letters, numbers, and hyphens."
}

variable "instance_type" {
  type        = "string"
  description = "The GCP instance type to use for this database"
  default     = "db-n1-standard-2"
}

variable "highly_available" {
  type        = "string"
  description = "whether or not the database will be made highly available."
  default     = false
}

variable "disk_autoresize" {
  type        = "string"
  description = "Whether or not to automatically expand disk size when nearing storage capacity. Increases are permanent"
  default     = false
}

variable "disk_size" {
  type        = "string"
  description = "The size in GB of the disk."
  default     = 10
}

variable "backups_enabled" {
  type        = "string"
  description = "Whether or not to enable backups."
  default     = true
}

variable "shared_vpc_project" {
  type        = "string"
  description = "The name of the project containing a Shared VPC to use when creating this database instance. If this is set to `-`, this setting is ignored."
  default     = "-"
}

variable "network_name" {
  type        = "string"
  description = "The name of the VPC to attach this instance to."
}

variable "authorized_networks" {
  type        = "list"
  description = "The list of CIDR ranges that are allowed to connect to this CloudSQL instance via its public IP. See [the docs](https://www.terraform.io/docs/providers/google/r/sql_database_instance.html#expiration_time) or the `variables.tf` file for details on the structure"

  default = [
    {
      name  = "HQ"
      value = "1.2.3.4/32"
    },
  ]
}

variable "require_tls" {
  type        = "string"
  description = "Whether or not to require TLS when connecting to this instance over IP. If set to true, client certificates will need to be generated seperately."
  default     = true
}

variable "export_schedule" {
  type        = "string"
  description = "The crontab string for running exports. There is no checking done on this value, so ensure that the schedule is both sensible and reasonable. For example, don't run exports every minute or every hour."
  default     = "0 0 * * *"
}

variable "days_to_keep_exports" {
  type        = "string"
  description = "The number of days to keep database exports, which are stored in a Cloud Storage bucket. These exports are separate from the backups that occur on the instance itself and should be treated more like archival than hot backups. Must be 90 days or longer. If a number less than 90 days is supplied, it will default to 90 days."
  default     = 180
}
	import base64
	import datetime
	from googleapiclient import discovery


	def export_database(data, context):
	"""Background Cloud Function to be triggered by Pub/Sub.
	Args:
	data (dict): The dictionary with data specific to this type of event.
	context (google.cloud.functions.Context): The Cloud Functions event
	metadata.
	"""
	sqladmin = discovery.build("sqladmin", "v1beta4", cache_discovery=False)
	utcnow = datetime.datetime.utcnow()
	(project, instance, bucket) = (
	base64.b64decode(data["data"]).decode("utf-8").split(":")
	)
	filename = "{0}/{1}/{2}_{3}.sql.gz".format(
	utcnow.year, utcnow.month, instance, utcnow.strftime("%Y%m%dT%H%M%SZ")
	)
	body = {
	"exportContext": {
	"kind": "sql#exportContext",
	"fileType": "SQL",
	"uri": "gs://{0}/{1}".format(bucket, filename),
	}
	}
	sqladmin.instances().export(project=project, instance=instance, body=body).execute()
	cachetools==3.1.1
	google-api-python-client==1.7.9
	google-auth==1.6.3
	google-auth-httplib2==0.0.3
	httplib2==0.13.0
	pyasn1==0.4.5
	pyasn1-modules==0.2.5
	rsa==4.0
	six==1.12.0
	uritemplate==3.0.0

	Apache License
	Version 2.0, January 2004
	http://www.apache.org/licenses/

	TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

	1. Definitions.

	"License" shall mean the terms and conditions for use, reproduction,
	and distribution as defined by Sections 1 through 9 of this document.

	"Licensor" shall mean the copyright owner or entity authorized by
	the copyright owner that is granting the License.

	"Legal Entity" shall mean the union of the acting entity and all
	other entities that control, are controlled by, or are under common
	control with that entity. For the purposes of this definition,
	"control" means (i) the power, direct or indirect, to cause the
	direction or management of such entity, whether by contract or
	otherwise, or (ii) ownership of fifty percent (50%) or more of the
	outstanding shares, or (iii) beneficial ownership of such entity.

	"You" (or "Your") shall mean an individual or Legal Entity
	exercising permissions granted by this License.

	"Source" form shall mean the preferred form for making modifications,
	including but not limited to software source code, documentation
	source, and configuration files.

	"Object" form shall mean any form resulting from mechanical
	transformation or translation of a Source form, including but
	not limited to compiled object code, generated documentation,
	and conversions to other media types.

	"Work" shall mean the work of authorship, whether in Source or
	Object form, made available under the License, as indicated by a
	copyright notice that is included in or attached to the work
	(an example is provided in the Appendix below).

	"Derivative Works" shall mean any work, whether in Source or Object
	form, that is based on (or derived from) the Work and for which the
	editorial revisions, annotations, elaborations, or other modifications
	represent, as a whole, an original work of authorship. For the purposes
	of this License, Derivative Works shall not include works that remain
	separable from, or merely link (or bind by name) to the interfaces of,
	the Work and Derivative Works thereof.

	"Contribution" shall mean any work of authorship, including
	the original version of the Work and any modifications or additions
	to that Work or Derivative Works thereof, that is intentionally
	submitted to Licensor for inclusion in the Work by the copyright owner
	or by an individual or Legal Entity authorized to submit on behalf of
	the copyright owner. For the purposes of this definition, "submitted"
	means any form of electronic, verbal, or written communication sent
	to the Licensor or its representatives, including but not limited to
	communication on electronic mailing lists, source code control systems,
	and issue tracking systems that are managed by, or on behalf of, the
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	locals {
	labels = {
	env = "${var.env}"
	managed_by_terraform = "1"
	}

	apis = [
	"storage-api.googleapis.com",
	"sqladmin.googleapis.com",
	"servicenetworking.googleapis.com",
	"pubsub.googleapis.com",
	"cloudfunctions.googleapis.com",
	"cloudscheduler.googleapis.com",
	"storage-component.googleapis.com",
	]

	network_project = "${var.shared_vpc_project == "-" ? var.project_id : var.shared_vpc_project }"
	generated_proxy_sa_name = "${var.instance_name}-proxy"

	instance_name = "${var.instance_name}-${random_string.sql.result}"

	days_to_keep_exports = "${var.days_to_keep_exports < 90 ? 90 : var.days_to_keep_exports}"
	}

	locals {
	generated_exporter_sa_name = "${local.instance_name}-export"
	}

	locals {
	proxy_sa_name = "${length(local.generated_proxy_sa_name) > 30 ? "${substr(var.instance_name, 0, 24)}-proxy" : local.generated_proxy_sa_name}"
	exporter_sa_name = "${length(local.generated_exporter_sa_name) > 30 ? "${substr(local.generated_exporter_sa_name, 0, 23)}-export" : local.generated_exporter_sa_name}"
	}

	locals {
	message_params = [
	"${var.project_id}",
	"${local.instance_name}",
	"${google_storage_bucket.exports.name}",
	]
	}

	data "google_compute_network" "network" {
	name = "${var.network_name}"
	project = "${local.network_project}"
	}

	resource "random_string" "sql" {
	length = 4
	special = false
	upper = false

	keepers {
	instance_name = "${var.instance_name}"
	}
	}

	resource "random_string" "func" {
	length = 4
	special = false
	upper = false

	keepers {
	instance_name = "${var.instance_name}"
	}
	}

	resource "google_project_service" "apis" {
	count = "${length(local.apis)}"
	project = "${var.project_id}"
	service = "${element(local.apis, count.index)}"
	disable_on_destroy = false
	}

	resource "google_project_iam_custom_role" "cloudsql_export" {
	project = "${var.project_id}"
	role_id = "cloudsql.exporter"
	title = "CloudSQL Exporter"
	description = "Allows triggering CloudSQL Exports to GCS."

	permissions = [
	"cloudsql.databases.get",
	"cloudsql.databases.list",
	"cloudsql.instances.export",
	"cloudsql.instances.get",
	"cloudsql.instances.list",
	]
	}

	resource "google_sql_database_instance" "db" {
	name = "${local.instance_name}"
	region = "${var.gcp_region}"
	project = "${var.project_id}"
	database_version = "MYSQL_5_7"

	settings {
	tier = "${var.instance_type}"
	availability_type = "${var.highly_available ? "REGIONAL" : "ZONAL"}"
	disk_autoresize = "${var.disk_autoresize}"
	disk_size = "${var.disk_size}"
	disk_type = "PD_SSD"
	user_labels = "${local.labels}"

	backup_configuration {
	binary_log_enabled = true
	enabled = "${var.backups_enabled}"
	}

	ip_configuration {
	ipv4_enabled = true
	private_network = "${data.google_compute_network.network.self_link}"
	require_ssl = "${var.require_tls}"
	authorized_networks = "${var.authorized_networks}"
	}

	maintenance_window {
	day = 7
	hour = 3
	update_track = "stable"
	}

	database_flags {
	name = "log_bin_trust_function_creators"
	value = "on"
	}
	}

	lifecycle {
	ignore_changes = [
	"settings.0.disk_size",
	]
	}

	depends_on = [
	"google_project_service.apis",
	]
	}

	resource "google_service_account" "sa" {
	account_id = "${local.proxy_sa_name}"
	display_name = "CloudSQL Proxy - ${var.instance_name}"
	project = "${var.project_id}"
	}

	resource "google_project_iam_member" "iam_member" {
	project = "${var.project_id}"
	role = "roles/cloudsql.client"
	member = "serviceAccount:${google_service_account.sa.email}"

	depends_on = [
	"google_project_service.apis",
	]
	}

	resource "google_pubsub_topic" "exports" {
	project = "${var.project_id}"
	name = "${local.instance_name}-exports"
	labels = "${local.labels}"

	depends_on = [
	"google_project_service.apis",
	]
	}

	resource "google_storage_bucket" "exports" {
	project = "${var.project_id}"
	name = "${local.instance_name}-exports"
	bucket_policy_only = true
	labels = "${local.labels}"

	lifecycle_rule {
	action {
	type = "SetStorageClass"
	storage_class = "NEARLINE"
	}

	condition {
	# Minimum age before an object can be cycled down.
	age = 30
	with_state = "ANY"
	}
	}

	lifecycle_rule {
	action {
	type = "SetStorageClass"
	storage_class = "COLDLINE"
	}

	condition {
	# Minimum age before an object can be cycled down.
	age = 90
	with_state = "ANY"
	}
	}

	lifecycle_rule {
	action {
	type = "Delete"
	}

	condition {
	age = "${local.days_to_keep_exports}"
	with_state = "ANY"
	}
	}

	versioning {
	enabled = true
	}

	depends_on = [
	"google_project_service.apis",
	]
	}

	resource "google_storage_bucket_object" "func" {
	name = "export_func/${local.instance_name}-export-function-${random_string.func.result}.zip"
	bucket = "${google_storage_bucket.exports.name}"
	source = "${path.module}/data/export_func.zip"

	lifecycle {
	ignore_changes = [
	"source",
	]
	}
	}

	resource "google_service_account" "export_sa" {
	project = "${var.project_id}"
	account_id = "${local.exporter_sa_name}"
	display_name = "${local.instance_name} - Exporter"
	}

	resource "google_pubsub_topic_iam_member" "export_pubsub_perms" {
	project = "${var.project_id}"
	topic = "${google_pubsub_topic.exports.id}"
	role = "roles/pubsub.subscriber"
	member = "serviceAccount:${google_service_account.export_sa.email}"
	}

	resource "google_storage_bucket_iam_member" "export_bucket_perms" {
	bucket = "${google_storage_bucket.exports.name}"
	role = "roles/storage.objectCreator"
	member = "serviceAccount:${google_sql_database_instance.db.service_account_email_address}"
	}

	resource "google_project_iam_member" "cloudfunction_export" {
	project = "${var.project_id}"
	role = "projects/${var.project_id}/roles/${google_project_iam_custom_role.cloudsql_export.role_id}"
	member = "serviceAccount:${google_service_account.export_sa.email}"

	depends_on = [
	"google_project_service.apis",
	]
	}

	resource "google_cloud_scheduler_job" "backup_schedule" {
	name = "${local.instance_name}-export"
	region = "${var.gcp_region}"
	description = "An export schedule for ${local.instance_name}"
	schedule = "${var.export_schedule}"
	time_zone = "UTC"

	pubsub_target {
	topic_name = "${google_pubsub_topic.exports.id}"
	data = "${base64encode("${join(":", local.message_params)}")}"

	attributes {
	instance_name = "${local.instance_name}"
	bucket_name = "${google_storage_bucket.exports.name}"
	}
	}

	retry_config {
	# Publishing to PubSub should never really fail, but just in case.
	retry_count = 5
	max_backoff_duration = "3600s"
	max_doublings = 5
	max_retry_duration = "0s"
	min_backoff_duration = "10s"
	}

	lifecycle {
	ignore_changes = [
	"id",
	]
	}
	}

	resource "google_cloudfunctions_function" "export_func" {
	name = "${local.instance_name}-export"
	description = "Triggers database exports for ${local.instance_name}"
	available_memory_mb = 128
	source_archive_bucket = "${google_storage_bucket.exports.name}"
	source_archive_object = "${google_storage_bucket_object.func.output_name}"
	runtime = "python37"
	entry_point = "export_database"
	region = "${var.gcp_region}"
	service_account_email = "${google_service_account.export_sa.email}"
	labels = "${local.labels}"

	event_trigger {
	event_type = "providers/cloud.pubsub/eventTypes/topic.publish"
	resource = "${google_pubsub_topic.exports.name}"
	}
	}
	provider "google" {
	version = "~> 2.0"
	region = "${var.gcp_region}"
	project = "${var.project_id}"
	}

	provider "random" {
	version = "~> 2.1"
	}
	variable "gcp_region" {
	type = "string"
	description = "The GCP region to create the database in."
	}

	variable "project_id" {
	type = "string"
	description = "The project ID to use in GCP."
	}

	variable "env" {
	type = "string"
	description = "The environment tier that this represents. Should be one of 'dev', 'qa', 'staging', 'production', or 'mgmt'."
	default = "dev"
	}

	variable "instance_name" {
	type = "string"
	description = "The name of the instance. Must only include lowercase letters, numbers, and hyphens."
	}

	variable "instance_type" {
	type = "string"
	description = "The GCP instance type to use for this database"
	default = "db-n1-standard-2"
	}

	variable "highly_available" {
	type = "string"
	description = "whether or not the database will be made highly available."
	default = false
	}

	variable "disk_autoresize" {
	type = "string"
	description = "Whether or not to automatically expand disk size when nearing storage capacity. Increases are permanent"
	default = false
	}

	variable "disk_size" {
	type = "string"
	description = "The size in GB of the disk."
	default = 10
	}

	variable "backups_enabled" {
	type = "string"
	description = "Whether or not to enable backups."
	default = true
	}

	variable "shared_vpc_project" {
	type = "string"
	description = "The name of the project containing a Shared VPC to use when creating this database instance. If this is set to `-`, this setting is ignored."
	default = "-"
	}

	variable "network_name" {
	type = "string"
	description = "The name of the VPC to attach this instance to."
	}

	variable "authorized_networks" {
	type = "list"
	description = "The list of CIDR ranges that are allowed to connect to this CloudSQL instance via its public IP. See [the docs](https://www.terraform.io/docs/providers/google/r/sql_database_instance.html#expiration_time) or the `variables.tf` file for details on the structure"

	default = [
	{
	name = "HQ"
	value = "1.2.3.4/32"
	},
	]
	}

	variable "require_tls" {
	type = "string"
	description = "Whether or not to require TLS when connecting to this instance over IP. If set to true, client certificates will need to be generated seperately."
	default = true
	}

	variable "export_schedule" {
	type = "string"
	description = "The crontab string for running exports. There is no checking done on this value, so ensure that the schedule is both sensible and reasonable. For example, don't run exports every minute or every hour."
	default = "0 0 * * *"
	}

	variable "days_to_keep_exports" {
	type = "string"
	description = "The number of days to keep database exports, which are stored in a Cloud Storage bucket. These exports are separate from the backups that occur on the instance itself and should be treated more like archival than hot backups. Must be 90 days or longer. If a number less than 90 days is supplied, it will default to 90 days."
	default = 180
	}