Terraform Provider: Snowflake

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Please note: If you believe you have found a security issue, please responsibly disclose by contacting us at [email protected].

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This is a terraform provider plugin for managing Snowflake accounts.

Install

The easiest way is to run this command:

curl https://raw.githubusercontent.com/chanzuckerberg/terraform-provider-snowflake/master/download.sh | bash -s -- -b $HOME/.terraform.d/plugins

It runs a script generated by godownloader which installs into the proper directory for terraform (~/.terraform.d/plugins).

You can also just download a binary from our releases and follow the Terraform directions for installing 3rd party plugins.

TODO fogg config

Authentication

We currently support username + password, browser and keypair authenthication. We suggest that you do so via environment variables. Define a config with the non-senstive field like-

provider "snowflake" {
  account = "..."
  role    = "..."
  region  = "..."
}

Then set SNOWFLAKE_USER and either SNOWFLAKE_PASSWORD or SNOWFLAKE_PRIVATE_KEY_PATH.

Keypair Authentication Environment Variables

You should generate the public and private keys and set up environment variables.

cd ~/.ssh
openssl genrsa -out snowflake_key 4096
openssl rsa -in snowflake_key -pubout -out snowflake_key.pub

To export the variables into your provider:

export SNOWFLAKE_USER="..."
export SNOWFLAKE_PRIVATE_KEY_PATH="~/.ssh/snowflake_key"

Username and Password Environment Variables

If you choose to use Username and Password Authentication, export these credentials:

export SNOWFLAKE_USER='...'
export SNOWFLAKE_PASSWORD='...'

Resources

We support managing a subset of snowflakedb resources, with a focus on access control and management. We've built and support the resources we use. If you are lookig for others to be supported we are more than happy to get PRs merged.

You can see a number of examples here.

snowflake_database

properties

NAME	TYPE	DESCRIPTION	OPTIONAL	REQUIRED	COMPUTED	DEFAULT
comment	string		true	false	false	""
data_retention_time_in_days	int		true	false	true
from_database	string	Specify a database to create a clone from.	true	false	false
from_share	map	Specify a provider and a share in this map to create a database from a share.	true	false	false
name	string		false	true	false

snowflake_database_grant

Note: The snowflake_database_grant resource creates exclusive attachments of grants. Across the entire Snowflake account, all of the databases to which a single grant is attached must be declared by a single snowflake_database_grant resource. This means that even any snowflake_database that have the attached grant via any other mechanism (including other Terraform resources) will have that attached grant revoked by this resource. These resources do not enforce exclusive attachment of a grant, it is the user's responsibility to enforce this.

properties

NAME	TYPE	DESCRIPTION	OPTIONAL	REQUIRED	COMPUTED	DEFAULT
database_name	string	The name of the database on which to grant privileges.	false	true	false
privilege	string	The privilege to grant on the database.	true	false	false	"USAGE"
roles	set	Grants privilege to these roles.	true	false	false
shares	set	Grants privilege to these shares.	true	false	false

snowflake_managed_account

properties

NAME	TYPE	DESCRIPTION	OPTIONAL	REQUIRED	COMPUTED	DEFAULT
admin_name	string	Identifier, as well as login name, for the initial user in the managed account. This user serves as the account administrator for the account.	false	true	false
admin_password	string	Password for the initial user in the managed account.	false	true	false
cloud	string	Cloud in which the managed account is located.	false	false	true
comment	string	Specifies a comment for the managed account.	true	false	false
created_on	string	Date and time when the managed account was created.	false	false	true
locator	string	Display name of the managed account.	false	false	true
name	string	Identifier for the managed account; must be unique for your account.	false	true	false
region	string	Snowflake Region in which the managed account is located.	false	false	true
type	string	Specifies the type of managed account.	true	false	false	"READER"
url	string	URL for accessing the managed account, particularly through the web interface.	false	false	true

snowflake_pipe

properties

NAME	TYPE	DESCRIPTION	OPTIONAL	REQUIRED	COMPUTED	DEFAULT
auto_ingest	bool	Specifies a auto_ingest param for the pipe.	true	false	false	false
comment	string	Specifies a comment for the pipe.	true	false	false
copy_statement	string	Specifies the copy statement for the pipe.	false	true	false
database	string	The database in which to create the pipe.	false	true	false
name	string	Specifies the identifier for the pipe; must be unique for the database and schema in which the pipe is created.	false	true	false
notification_channel	string	Amazon Resource Name of the Amazon SQS queue for the stage named in the DEFINITION column.	false	false	true
owner	string	Name of the role that owns the pipe.	false	false	true
schema	string	The schema in which to create the pipe.	false	true	false

snowflake_resource_monitor

properties

NAME	TYPE	DESCRIPTION	OPTIONAL	REQUIRED	COMPUTED	DEFAULT
credit_quota	float	The amount of credits allocated monthly to the resource monitor, round up to 2 decimal places.	true	false	true
end_timestamp	string	The date and time when the resource monitor suspends the assigned warehouses.	true	false	false
frequency	string	The frequency interval at which the credit usage resets to 0. If you set a frequency for a resource monitor, you must also set START_TIMESTAMP.	true	false	true
name	string	Identifier for the resource monitor; must be unique for your account.	false	true	false
notify_triggers	set	A list of percentage thresholds at which to send an alert to subscribed users.	true	false	false
start_timestamp	string	The date and time when the resource monitor starts monitoring credit usage for the assigned warehouses.	true	false	true
suspend_immediate_triggers	set	A list of percentage thresholds at which to immediately suspend all warehouses.	true	false	false
suspend_triggers	set	A list of percentage thresholds at which to suspend all warehouses.	true	false	false

snowflake_role

properties

NAME	TYPE	DESCRIPTION	OPTIONAL	REQUIRED	COMPUTED	DEFAULT
comment	string		true	false	false
name	string		false	true	false

snowflake_role_grants

properties

NAME	TYPE	DESCRIPTION	OPTIONAL	REQUIRED	COMPUTED	DEFAULT
role_name	string	The name of the role we are granting.	false	true	false
roles	set	Grants role to this specified role.	true	false	false
users	set	Grants role to this specified user.	true	false	false

snowflake_schema

properties

NAME	TYPE	DESCRIPTION	OPTIONAL	REQUIRED	COMPUTED	DEFAULT
comment	string	Specifies a comment for the schema.	true	false	false
data_retention_days	int	Specifies the number of days for which Time Travel actions (CLONE and UNDROP) can be performed on the schema, as well as specifying the default Time Travel retention time for all tables created in the schema.	true	false	false	1
database	string	The database in which to create the schema.	false	true	false
is_managed	bool	Specifies a managed schema. Managed access schemas centralize privilege management with the schema owner.	true	false	false	false
is_transient	bool	Specifies a schema as transient. Transient schemas do not have a Fail-safe period so they do not incur additional storage costs once they leave Time Travel; however, this means they are also not protected by Fail-safe in the event of a data loss.	true	false	false	false
name	string	Specifies the identifier for the schema; must be unique for the database in which the schema is created.	false	true	false

snowflake_schema_grant

Note: The snowflake_schema_grant resource creates exclusive attachments of grants. Across the entire Snowflake account, all of the schemas to which a single grant is attached must be declared by a single snowflake_schema_grant resource. This means that even any snowflake_schema that have the attached grant via any other mechanism (including other Terraform resources) will have that attached grant revoked by this resource. These resources do not enforce exclusive attachment of a grant, it is the user's responsibility to enforce this.

properties

NAME	TYPE	DESCRIPTION	OPTIONAL	REQUIRED	COMPUTED	DEFAULT
database_name	string	The name of the database containing the schema on which to grant privileges.	false	true	false
privilege	string	The privilege to grant on the schema. Note that if "OWNERSHIP" is specified, ensure that the role that terraform is using is granted access.	true	false	false	"USAGE"
roles	set	Grants privilege to these roles.	true	false	false
schema_name	string	The name of the schema on which to grant privileges.	false	true	false
shares	set	Grants privilege to these shares.	true	false	false

snowflake_share

properties

NAME	TYPE	DESCRIPTION	OPTIONAL	REQUIRED	COMPUTED	DEFAULT
accounts	list	A list of accounts to be added to the share.	true	false	false
comment	string	Specifies a comment for the managed account.	true	false	false
name	string	Specifies the identifier for the share; must be unique for the account in which the share is created.	false	true	false

snowflake_stage

properties

NAME	TYPE	DESCRIPTION	OPTIONAL	REQUIRED	COMPUTED	DEFAULT
aws_external_id	string		true	false	true
comment	string	Specifies a comment for the stage.	true	false	false
copy_options	string	Specifies the copy options for the stage.	true	false	false
credentials	string	Specifies the credentials for the stage.	true	false	false
database	string	The database in which to create the stage.	false	true	false
encryption	string	Specifies the encryption settings for the stage.	true	false	false
file_format	string	Specifies the file format for the stage.	true	false	false
name	string	Specifies the identifier for the stage; must be unique for the database and schema in which the stage is created.	false	true	false
schema	string	The schema in which to create the stage.	false	true	false
snowflake_iam_user	string		true	false	true
url	string	Specifies the URL for the stage.	true	false	false

snowflake_stage_grant

Note: The snowflake_stage_grant resource creates exclusive attachments of grants. Across the entire Snowflake account, all of the stages to which a single grant is attached must be declared by a single snowflake_stage_grant resource. This means that even any snowflake_stage that have the attached grant via any other mechanism (including other Terraform resources) will have that attached grant revoked by this resource. These resources do not enforce exclusive attachment of a grant, it is the user's responsibility to enforce this.

properties

NAME	TYPE	DESCRIPTION	OPTIONAL	REQUIRED	COMPUTED	DEFAULT
database_name	string	The name of the database containing the current stage on which to grant privileges.	false	true	false
privilege	string	The privilege to grant on the stage.	true	false	false	"USAGE"
roles	set	Grants privilege to these roles.	true	false	false
schema_name	string	The name of the schema containing the current stage on which to grant privileges.	false	true	false
shares	set	Grants privilege to these shares.	true	false	false
stage_name	string	The name of the stage on which to grant privileges.	false	true	false

snowflake_table_grant

Note: The snowflake_table_grant resource creates exclusive attachments of grants. Across the entire Snowflake account, all of the tables to which a single grant is attached must be declared by a single snowflake_table_grant resource. This means that even any snowflake_table that have the attached grant via any other mechanism (including other Terraform resources) will have that attached grant revoked by this resource. These resources do not enforce exclusive attachment of a grant, it is the user's responsibility to enforce this.

properties

NAME	TYPE	DESCRIPTION	OPTIONAL	REQUIRED	COMPUTED	DEFAULT
database_name	string	The name of the database containing the current or future tables on which to grant privileges.	false	true	false
on_future	bool	When this is set to true, apply this grant on all future tables in the given schema. The table_name and shares fields must be unset in order to use on_future.	true	false	false	false
privilege	string	The privilege to grant on the current or future table.	true	false	false	"SELECT"
roles	set	Grants privilege to these roles.	true	false	false
schema_name	string	The name of the schema containing the current or future tables on which to grant privileges.	true	false	false	"PUBLIC"
shares	set	Grants privilege to these shares (only valid if on_future is unset).	true	false	false
table_name	string	The name of the table on which to grant privileges immediately (only valid if on_future is unset).	true	false	false

snowflake_user

properties

NAME	TYPE	DESCRIPTION	OPTIONAL	REQUIRED	COMPUTED	DEFAULT
comment	string		true	false	false
default_namespace	string	Specifies the namespace (database only or database and schema) that is active by default for the user’s session upon login.	true	false	false
default_role	string	Specifies the role that is active by default for the user’s session upon login.	true	false	true
default_warehouse	string	Specifies the virtual warehouse that is active by default for the user’s session upon login.	true	false	false
disabled	bool		true	false	true
has_rsa_public_key	bool	Will be true if user as an RSA key set.	false	false	true
login_name	string	The name users use to log in. If not supplied, snowflake will use name instead.	true	false	true
must_change_password	bool	Specifies whether the user is forced to change their password on next login (including their first/initial login) into the system.	true	false	false
name	string	Name of the user. Note that if you do not supply login_name this will be used as login_name. doc	false	true	false
password	string	WARNING: this will put the password in the terraform state file. Use carefully.	true	false	false
rsa_public_key	string	Specifies the user’s RSA public key; used for key-pair authentication. Must be on 1 line without header and trailer.	true	false	false
rsa_public_key_2	string	Specifies the user’s second RSA public key; used to rotate the public and private keys for key-pair authentication based on an expiration schedule set by your organization. Must be on 1 line without header and trailer.	true	false	false

snowflake_view

properties

NAME	TYPE	DESCRIPTION	OPTIONAL	REQUIRED	COMPUTED	DEFAULT
comment	string	Specifies a comment for the view.	true	false	false
database	string	The database in which to create the view. Don't use the	character.	false	true	false
is_secure	bool	Specifies that the view is secure.	true	false	false	false
name	string	Specifies the identifier for the view; must be unique for the schema in which the view is created. Don't use the	character.	false	true	false
schema	string	The schema in which to create the view. Don't use the	character.	true	false	false
statement	string	Specifies the query used to create the view.	false	true	false

snowflake_view_grant

Note: The snowflake_view_grant resource creates exclusive attachments of grants. Across the entire Snowflake account, all of the views to which a single grant is attached must be declared by a single snowflake_view_grant resource. This means that even any snowflake_view that have the attached grant via any other mechanism (including other Terraform resources) will have that attached grant revoked by this resource. These resources do not enforce exclusive attachment of a grant, it is the user's responsibility to enforce this.

properties

NAME	TYPE	DESCRIPTION	OPTIONAL	REQUIRED	COMPUTED	DEFAULT
database_name	string	The name of the database containing the current or future views on which to grant privileges.	false	true	false
on_future	bool	When this is set to true, apply this grant on all future views in the given schema. The view_name and shares fields must be unset in order to use on_future.	true	false	false	false
privilege	string	The privilege to grant on the current or future view.	true	false	false	"SELECT"
roles	set	Grants privilege to these roles.	true	false	false
schema_name	string	The name of the schema containing the current or future views on which to grant privileges.	true	false	false	"PUBLIC"
shares	set	Grants privilege to these shares (only valid if on_future is unset).	true	false	false
view_name	string	The name of the view on which to grant privileges immediately (only valid if on_future is unset).	true	false	false

snowflake_warehouse

properties

NAME	TYPE	DESCRIPTION	OPTIONAL	REQUIRED	COMPUTED	DEFAULT
auto_resume	bool	Specifies whether to automatically resume a warehouse when a SQL statement (e.g. query) is submitted to it.	true	false	true
auto_suspend	int	Specifies the number of seconds of inactivity after which a warehouse is automatically suspended.	true	false	true
comment	string		true	false	false	""
initially_suspended	bool	Specifies whether the warehouse is created initially in the ‘Suspended’ state.	true	false	false
max_cluster_count	int	Specifies the maximum number of server clusters for the warehouse.	true	false	true
min_cluster_count	int	Specifies the minimum number of server clusters for the warehouse (only applies to multi-cluster warehouses).	true	false	true
name	string		false	true	false
resource_monitor	string	Specifies the name of a resource monitor that is explicitly assigned to the warehouse.	true	false	true
scaling_policy	string	Specifies the policy for automatically starting and shutting down clusters in a multi-cluster warehouse running in Auto-scale mode.	true	false	true
statement_timeout_in_seconds	int	Specifies the time, in seconds, after which a running SQL statement (query, DDL, DML, etc.) is canceled by the system	true	false	false	0
wait_for_provisioning	bool	Specifies whether the warehouse, after being resized, waits for all the servers to provision before executing any queued or new queries.	true	false	false
warehouse_size	string		true	false	true

snowflake_warehouse_grant

Note: The snowflake_warehouse_grant resource creates exclusive attachments of grants. Across the entire Snowflake account, all of the warehouses to which a single grant is attached must be declared by a single snowflake_warehouse_grant resource. This means that even any snowflake_warehouse that have the attached grant via any other mechanism (including other Terraform resources) will have that attached grant revoked by this resource. These resources do not enforce exclusive attachment of a grant, it is the user's responsibility to enforce this.

properties

NAME	TYPE	DESCRIPTION	OPTIONAL	REQUIRED	COMPUTED	DEFAULT
privilege	string	The privilege to grant on the warehouse.	true	false	false	"USAGE"
roles	set	Grants privilege to these roles.	true	false	false
warehouse_name	string	The name of the warehouse on which to grant privileges.	false	true	false

Development

To do development you need Go installed, this repo cloned and that's about it. It has not been tested on Windows, so if you find problems let us know.

If you want to build and test the provider locally there is a make target make install-tf that will build the provider binary and install it in a location that terraform can find.

Testing

For the Terraform resources, there are 3 levels of testing - internal, unit and acceptance tests.

The 'internal' tests are run in the github.com/chanzuckerberg/terraform-provider-snowflake/pkg/resources package so that they can test functions that are not exported. These tests are intended to be limited to unit tests for simple functions.

The 'unit' tests are run in github.com/chanzuckerberg/terraform-provider-snowflake/pkg/resources_test, so they only have access to the exported methods of resources. These tests exercise the CRUD methods that on the terraform resources. Note that all tests here make use of database mocking and are run locally. This means the tests are fast, but are liable to be wrong in suble ways (since the mocks are unlikely to be perfect).

You can run these first two sets of tests with make test.

The 'acceptance' tests run the full stack, creating, modifying and destroying resources in a live snowflake account. To run them you need a snowflake account and the proper environment variables set- SNOWFLAKE_ACCOUNT, SNOWFLAKE_USER, SNOWFLAKE_PASSWORD, SNOWFLAKE_ROLE. These tests are slower but have higher fidelity.

To run all tests, including the acceptance tests, run make test-acceptance.

We also run all tests in our Travis-CI account.

Pull Request CI

Our CI jobs run the full acceptence test suite, which involves creating and destroying resources in a live snowflake account. Travis-CI is configured with environment variables to authenticate to our test snowflake account. For security reasons, those variables are not available to forks of this repo.

If you are making a PR from a forked repo, you can create a new Snowflake trial account and set up Travis to build it by setting these environement variables:

• SNOWFLAKE_ACCOUNT - The account name
• SNOWFLAKE_USER - A snowflake user for running tests.
• SNOWFLAKE_PASSWORD - Password for that user.
• SNOWFLAKE_ROLE - Needs to be ACCOUNTADMIN or similar.
• SNOWFLAKE_REGION - Default is us-west-2, set this if your snowflake account is in a different region.

If you are using the Standard Snowflake plan, it's recommended you also set up the following environment variables to skip tests for features not enabled for it:

• SKIP_DATABASE_TESTS - to skip tests with retention time larger than 1 day
• SKIP_WAREHOUSE_TESTS - to skip tests with multi warehouses