Initializing and Migrating
After configuring Terraform Cloud settings for a working directory, you must run terraform init
to finish setting up. If the working directory has no existing Terraform state, you can start using Terraform with Terraform Cloud right away. Refer to CLI-driven run workflow for more details.
When you run terraform init
in the following scenarios, Terraform will ask you to choose whether or not to migrate state from any existing workspaces.
Migrating from local state or state backends: If the working directory already has state data in one or more workspaces, Terraform will ask if you would like to migrate that state to new Terraform Cloud workspaces.
Migrating from the
remote
backend: If the working directory was already connected to Terraform Cloud with theremote
backend, Terraform can continue using the same Terraform Cloud workspaces. You will need to switch theremote
backend block to thecloud
block.
Migrating from Local State or State Backends
Hands On: Try the Migrate State to Terraform Cloud tutorial.
If the working directory already has state data available (using either local state or a state backend), Terraform asks your approval to migrate that state to Terraform Cloud. You will need permission to manage workspaces in the destination Terraform Cloud organization. This process is interactive and self-documenting, and resembles moving between state backends.
Terraform may also prompt you to rename your workspaces during the migration, to either give a name to
the unnamed default
workspace (Terraform Cloud requires all workspaces to have a name) or give
your workspace names more contextual information. Unlike Terraform CLI-only workspaces, which represent
multiple environments associated with the same configuration (e.g. production, staging, development),
Terraform Cloud workspaces can represent totally independent configurations, and must have unique names within the Terraform Cloud organization.
Because of this, Terraform will prompt you to rename the working directory's workspaces
according to a pattern relative to their existing names. This can indicate the fact that these specific workspaces share configuration. A typical strategy is
<COMPONENT>-<ENVIRONMENT>-<REGION>
(e.g., networking-prod-us-east
,
networking-staging-us-east
). Refer to Workspace
Naming in the Terraform Cloud documentation for more detail.
Migrating from the remote
Backend
If the working directory was already connected to Terraform Cloud with the remote
backend, Terraform can continue using the same Terraform Cloud workspaces. The local names shown for those workspaces will change to match their remote names.
The remote
backend was the primary implementation of Terraform Cloud's CLI-driven run workflow for Terraform versions 0.11.13 through 1.0.x. We recommend using the native cloud
integration for Terraform versions 1.1 or later, as it provides an improved user experience and various enhancements.
Block Replacement
When switching from the remote
backend to a cloud
block, Terraform will continue using the same
set of Terraform Cloud workspaces. Replace your backend "remote"
block with an equivalent cloud
block.
Single Workspace
If you were using a single workspace with the name
argument, change the block
label to cloud
.
terraform {- backend "remote" {+ cloud { organization = "my-org" workspaces { name = "my-app-prod" } } }
Multiple Workspaces
If you were using multiple workspaces with the prefix
argument, replace it with a cloud
block that uses the tags
argument. You may specify any number of tags to distinguish the workspaces for your working directory, but a good starting point may be to use whatever the prefix was before.
The tags you configure do not need to be present on the existing workspaces. When you initialize, Terraform will add the specified tags to the workspaces if necessary.
terraform {- backend "remote" {+ cloud { organization = "my-org" workspaces {- prefix = "my-app-"+ tags = ["app:mine"] } } }
Warning: Because the cloud
block does not support the prefix
argument, once you migrate, you must refer to workspaces by their full name when using the Terraform CLI. For example, rather than terraform workspace select prod
, you must run the command terraform workspace select my-app-prod
.