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---
layout: "google"
page_title: "Google: google_sql_database_instance"
sidebar_current: "docs-google-sql-database-instance"
description: |-
Creates a new SQL database instance in Google Cloud SQL.
---
# google\_sql\_database\_instance
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Creates a new Google SQL Database Instance. For more information, see the [official documentation ](https://cloud.google.com/sql/ ),
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or the [JSON API ](https://cloud.google.com/sql/docs/admin-api/v1beta4/instances ).
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~> **NOTE on `google_sql_database_instance`:** - Second-generation instances include a
default 'root'@'%' user with no password. This user will be deleted by Terraform on
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instance creation. You should use `google_sql_user` to define a custom user with
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a restricted host and strong password.
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## Example Usage
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### SQL First Generation
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```hcl
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resource "google_sql_database_instance" "master" {
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name = "master-instance"
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database_version = "MYSQL_5_6"
# First-generation instance regions are not the conventional
# Google Compute Engine regions. See argument reference below.
region = "us-central"
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settings {
tier = "D0"
}
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}
```
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### SQL Second generation
```hcl
resource "google_sql_database_instance" "master" {
name = "master-instance"
database_version = "POSTGRES_9_6"
region = "us-central1"
settings {
# Second-generation instance tiers are based on the machine
# type. See argument reference below.
tier = "db-f1-micro"
}
}
```
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### Granular restriction of network access
```hcl
resource "google_compute_instance" "apps" {
count = 8
name = "apps-${count.index + 1}"
machine_type = "f1-micro"
boot_disk {
initialize_params {
image = "ubuntu-os-cloud/ubuntu-1804-lts"
}
}
network_interface {
network = "default"
access_config {
// Ephemeral IP
}
}
}
data "null_data_source" "auth_netw_postgres_allowed_1" {
count = "${length(google_compute_instance.apps.*.self_link)}"
inputs = {
name = "apps-${count.index + 1}"
value = "${element(google_compute_instance.apps.*.network_interface.0.access_config.0.assigned_nat_ip, count.index)}"
}
}
data "null_data_source" "auth_netw_postgres_allowed_2" {
count = 2
inputs = {
name = "onprem-${count.index + 1}"
value = "${element(list("192.168.1.2", "192.168.2.3"), count.index)}"
}
}
resource "google_sql_database_instance" "postgres" {
name = "postgres-instance"
database_version = "POSTGRES_9_6"
settings {
tier = "db-f1-micro"
ip_configuration {
authorized_networks = [
"${data.null_data_source.auth_netw_postgres_allowed_1.*.outputs}",
"${data.null_data_source.auth_netw_postgres_allowed_2.*.outputs}",
]
}
}
}
```
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## Argument Reference
The following arguments are supported:
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* `region` - (Required) The region the instance will sit in. Note, first-generation Cloud SQL instance
regions do not line up with the Google Compute Engine (GCE) regions, and Cloud SQL is not
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available in all regions - choose from one of the options listed [here ](https://cloud.google.com/sql/docs/mysql/instance-locations ).
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A valid region must be provided to use this resource. If a region is not provided in the resource definition,
the provider region will be used instead, but this will be an apply-time error for all first-generation
instances *and* for second-generation instances if the provider region is not supported with Cloud SQL.
If you choose not to provide the `region` argument for this resource, make sure you understand this.
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* `settings` - (Required) The settings to use for the database. The
configuration is detailed below.
- - -
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* `database_version` - (Optional, Default: `MYSQL_5_6` ) The MySQL version to
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use. Can be `MYSQL_5_6` , `MYSQL_5_7` or `POSTGRES_9_6` for second-generation
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instances, or `MYSQL_5_5` or `MYSQL_5_6` for first-generation instances.
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See [Second Generation Capabilities ](https://cloud.google.com/sql/docs/1st-2nd-gen-differences )
for more information. `POSTGRES_9_6` support is in [Beta ](/docs/providers/google/index.html#beta-features ).
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* `name` - (Optional, Computed) The name of the instance. If the name is left
blank, Terraform will randomly generate one when the instance is first
created. This is done because after a name is used, it cannot be reused for
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up to [one week ](https://cloud.google.com/sql/docs/delete-instance ).
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* `master_instance_name` - (Optional) The name of the instance that will act as
the master in the replication setup. Note, this requires the master to have
`binary_log_enabled` set, as well as existing backups.
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* `project` - (Optional) The ID of the project in which the resource belongs. If it
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is not provided, the provider project is used.
* `replica_configuration` - (Optional) The configuration for replication. The
configuration is detailed below.
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The required `settings` block supports:
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* `tier` - (Required) The machine tier (First Generation) or type (Second Generation) to use. See
[tiers ](https://cloud.google.com/sql/docs/admin-api/v1beta4/tiers ) for more details and
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supported versions. Postgres supports only shared-core machine types such as `db-f1-micro` , and custom
machine types such as `db-custom-2-13312` . See the
[Custom Machine Type Documentation ](https://cloud.google.com/compute/docs/instances/creating-instance-with-custom-machine-type#create )
to learn about specifying custom machine types.
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* `activation_policy` - (Optional) This specifies when the instance should be
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active. Can be either `ALWAYS` , `NEVER` or `ON_DEMAND` .
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* `authorized_gae_applications` - (Optional) A list of Google App Engine (GAE)
project names that are allowed to access this instance.
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* `availability_type` - (Optional) This specifies whether a PostgreSQL instance
should be set up for high availability (`REGIONAL`) or single zone (`ZONAL`).
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* `crash_safe_replication` - (Optional) Specific to read instances, indicates
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when crash-safe replication flags are enabled.
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* `disk_autoresize` - (Optional, Second Generation, Default: `true` ) Configuration to increase storage size automatically.
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* `disk_size` - (Optional, Second Generation, Default: `10` ) The size of data disk, in GB. Size of a running instance cannot be reduced but can be increased.
* `disk_type` - (Optional, Second Generation, Default: `PD_SSD` ) The type of data disk: PD_SSD or PD_HDD.
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* `pricing_plan` - (Optional, First Generation) Pricing plan for this instance, can be one of
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`PER_USE` or `PACKAGE` .
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* `replication_type` - (Optional) Replication type for this instance, can be one
of `ASYNCHRONOUS` or `SYNCHRONOUS` .
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* `user_labels` - (Optional) A set of key/value user label pairs to assign to the instance.
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The optional `settings.database_flags` sublist supports:
* `name` - (Optional) Name of the flag.
* `value` - (Optional) Value of the flag.
The optional `settings.backup_configuration` subblock supports:
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* `binary_log_enabled` - (Optional) True if binary logging is enabled. If
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`logging` is false, this must be as well.
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* `enabled` - (Optional) True if backup configuration is enabled.
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* `start_time` - (Optional) `HH:MM` format time indicating when backup
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configuration starts.
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The optional `settings.ip_configuration` subblock supports:
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* `ipv4_enabled` - (Optional) True if the instance should be assigned an IP
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address. The IPv4 address cannot be disabled for Second Generation instances.
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* `require_ssl` - (Optional) True if mysqld should default to `REQUIRE X509`
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for users connecting over IP.
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The optional `settings.ip_configuration.authorized_networks[]` sublist supports:
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* `expiration_time` - (Optional) The [RFC 3339 ](https://tools.ietf.org/html/rfc3339 )
formatted date time string indicating when this whitelist expires.
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* `name` - (Optional) A name for this whitelist entry.
* `value` - (Optional) A CIDR notation IPv4 or IPv6 address that is allowed to
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access this instance. Must be set even if other two attributes are not for
the whitelist to become active.
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The optional `settings.location_preference` subblock supports:
* `follow_gae_application` - (Optional) A GAE application whose zone to remain
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in. Must be in the same region as this instance.
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* `zone` - (Optional) The preferred compute engine
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[zone ](https://cloud.google.com/compute/docs/zones?hl=en ).
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The optional `settings.maintenance_window` subblock for Second Generation
instances declares a one-hour [maintenance window ](https://cloud.google.com/sql/docs/instance-settings?hl=en#maintenance-window-2ndgen )
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when an Instance can automatically restart to apply updates. The maintenance window is specified in UTC time. It supports:
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* `day` - (Optional) Day of week (`1-7`), starting on Monday
* `hour` - (Optional) Hour of day (`0-23`), ignored if `day` not set
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* `update_track` - (Optional) Receive updates earlier (`canary`) or later
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(`stable`)
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The optional `replica_configuration` block must have `master_instance_name` set
to work, cannot be updated, and supports:
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* `ca_certificate` - (Optional) PEM representation of the trusted CA's x509
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certificate.
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* `client_certificate` - (Optional) PEM representation of the slave's x509
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certificate.
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* `client_key` - (Optional) PEM representation of the slave's private key. The
corresponding public key in encoded in the `client_certificate` .
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* `connect_retry_interval` - (Optional, Default: 60) The number of seconds
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between connect retries.
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* `dump_file_path` - (Optional) Path to a SQL file in GCS from which slave
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instances are created. Format is `gs://bucket/filename` .
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* `failover_target` - (Optional) Specifies if the replica is the failover target.
If the field is set to true the replica will be designated as a failover replica.
If the master instance fails, the replica instance will be promoted as
the new master instance.
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* `master_heartbeat_period` - (Optional) Time in ms between replication
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heartbeats.
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* `password` - (Optional) Password for the replication connection.
* `sslCipher` - (Optional) Permissible ciphers for use in SSL encryption.
* `username` - (Optional) Username for replication connection.
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* `verify_server_certificate` - (Optional) True if the master's common name
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value is checked during the SSL handshake.
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## Attributes Reference
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In addition to the arguments listed above, the following computed attributes are
exported:
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* `first_ip_address` - The first IPv4 address of the addresses assigned. This is
is to support accessing the [first address in the list in a terraform output ](https://github.com/terraform-providers/terraform-provider-google/issues/912 )
when the resource is configured with a `count` .
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* `connection_name` - The connection name of the instance to be used in connection strings.
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* `ip_address.0.ip_address` - The IPv4 address assigned.
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* `ip_address.0.time_to_retire` - The time this IP address will be retired, in RFC
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3339 format.
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* `self_link` - The URI of the created resource.
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* `settings.version` - Used to make sure changes to the `settings` block are
atomic.
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* `server_ca_cert.0.cert` - The CA Certificate used to connect to the SQL Instance via SSL.
* `server_ca_cert.0.common_name` - The CN valid for the CA Cert.
* `server_ca_cert.0.create_time` - Creation time of the CA Cert.
* `server_ca_cert.0.expiration_time` - Expiration time of the CA Cert.
* `server_ca_cert.0.sha1_fingerprint` - SHA Fingerprint of the CA Cert.
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## Timeouts
`google_sql_database_instance` provides the following
[Timeouts ](/docs/configuration/resources.html#timeouts ) configuration options:
- `create` - Default is 10 minutes.
- `update` - Default is 10 minutes.
- `delete` - Default is 10 minutes.
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## Import
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Database instances can be imported using one of any of these accepted formats:
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```
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$ terraform import google_sql_database_instance.master projects/{{project}}/instances/{{name}}
$ terraform import google_sql_database_instance.master {{project}}/{{name}}
$ terraform import google_sql_database_instance.master {{name}}
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```
~> **NOTE:** Some fields (such as `replica_configuration` ) won't show a diff if they are unset in
config and set on the server.
When importing, double-check that your config has all the fields set that you expect- just seeing
no diff isn't sufficient to know that your config could reproduce the imported resource.