Release and publish to the Terraform registry

The Terraform Registry is HashiCorp's public repository of Terraform providers and modules. Whenever you initialize a Terraform configuration, Terraform attempts to download the necessary providers from the Terraform Registry. The registry also hosts provider-specific documentation.

In this tutorial, you will create a release for a Terraform provider that interacts with the API of a fictional coffee-shop application called HashiCups. Then, you will rehearse the steps to publish the provider to the Terraform Registry. To do so, you will generate a GPG signing key, set up the GitHub action used to generate the provider's release artifacts, then add your GPG keys to the Terraform Registry. Publishing providers to the registry is permanent, so to keep the registry un-cluttered you will not actually publish the HashiCups provider.

Prerequisites

To follow this tutorial, you need:

• Go 1.21+ installed and configured.
• Terraform v1.8+ installed locally.
• The GNUPG CLI command (gpg) installed locally.
• A GitHub account.

To release and publish the HashiCups provider to the Terraform Registry, you must publicly host the source code in a GitHub repository that you own.

$ git remote rm origin

$ git remote add origin https://github.com/GH_ORG/terraform-provider-hashicups

$ git branch -M main

$ git push -u origin main

$ git clone https://github.com/hashicorp/terraform-provider-hashicups

$ cd terraform-provider-hashicups/11-documentation-generation

$ go mod tidy

Verify Terraform Registry Manifest file

The Registry Manifest provides additional information about the provider to the Terraform Registry.

Verify that the terraform-registry-manifest.json file exists in the root of your repository.

Notice that the contents of the file specify the version of the file itself, and the Terraform protocol version that the provider uses.

{
  "version": 1,
  "metadata": {
    "protocol_versions": ["6.0"]
  }
}

Verify GoReleaser configuration

GoReleaser is a tool for building Go projects for multiple platforms, creating a checksums file, and signing the release.

Verify that the .goreleaser.yml file exists in the root of your repository.

This configuration generates and signs the necessary release artifacts to publish your provider to Terraform Registry. The GitHub Action workflow will run GoReleaser with this configuration. HashiCorp maintains this GoReleaser configuration file to use with any provider you release.

Verify GitHub Action workflow

Verify that the release.yml file exists in the .github/workflows/ directory

This GitHub Action will release new versions of your provider whenever you tag a commit on the main branch.

Generate GPG Signing Key

You need a GPG Signing Key to sign your provider binaries using GoReleaser and to verify your provider in the Terraform Registry. The Terraform Registry only supports RSA and DSA keys.

Generate your GPG key pair. When prompted to select which kind of key, respond with a 1 to select the RSA and RSA option.

$ gpg --full-generate-key
gpg (GnuPG) 2.3.6; Copyright (C) 2021 Free Software Foundation, Inc.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Please select what kind of key you want:
   (1) RSA and RSA
   (2) DSA and Elgamal
   (3) DSA (sign only)
   (4) RSA (sign only)
   (9) ECC (sign and encrypt) *default*
  (10) ECC (sign only)
  (14) Existing key from card
Your selection?

Enter 4096 when prompted for the key size.

RSA keys may be between 1024 and 4096 bits long.
What keysize do you want? (3072) 4096
Requested keysize is 4096 bits

Press Enter to accept the default option, indicating that the key does not expire.

Please specify how long the key should be valid.
         0 = key does not expire
      <n>  = key expires in n days
      <n>w = key expires in n weeks
      <n>m = key expires in n months
      <n>y = key expires in n years
Key is valid for? (0)
Key does not expire at all

Confirm your selection by entering y.

Is this correct? (y/N) y

Create a user ID at the prompt. Use your own information, not the example information below. Leave the comment blank.

GnuPG needs to construct a user ID to identify your key.

Real name: Terraform Education
Email address: team-terraform-education@hashicorp.com
Comment:

When prompted, confirm your USER-ID by entering O. Save your USER-ID, you will use this later to generate your private and public keys.

You selected this USER-ID:
    "Terraform Education <team-terraform-education@hashicorp.com>"

Change (N)ame, (C)omment, (E)mail or (O)kay/(Q)uit? O

Finally, create and confirm your passphrase. This passphrase is used to decrypt your GPG private key, select a strong passphrase and keep it secure.

Generate GPG public key

Generate your GPG public key. Later, you will add this key to the Terraform Registry. When you publish a new version of your provider to the Terraform Registry, the registry will validate that the release is signed with this keypair and Terraform will verify the provider during terraform init.

Replace KEY_ID with the USER-ID you used when creating your GPG key (Your name and email address).

$ gpg --armor --export "KEY_ID"
-----BEGIN PGP PUBLIC KEY BLOCK-----

mQINBGB91soBEACp/u6jJZAKeVahHGtR6jzDFcOvivhUFV2fuwBBW/jxqYrWEeEX
+rny8oChQjCABHG9bUxhSSqPyfCK/kUI3VK8Qrxpby6dQgqOFuF61P1mBI0BppLF
JGydv8J9SIIbYJOyajFzMLrvL+xvKD1AblRFBtQke8ts+gz9B+oW7SmAVMb3gM4n
##...
-----END PGP PUBLIC KEY BLOCK-----

Generate GPG private key

Generate your GPG private key. GoReleaser will use this to sign the provider releases.

Replace KEY_ID with the USER-ID you used when creating your GPG key. GPG will prompt you to enter the passphrase you created earlier.

$ gpg --armor --export-secret-keys "KEY_ID"
-----BEGIN PGP PRIVATE KEY BLOCK-----

lQdFBGB91soBEACp/u6jJZAKeVahHGtR6jzDFcOvivhUFV2fuwBBW/jxqYrWEeEX
+rny8oChQjCABHG9bUxhSSqPyfCK/kUI3VK8Qrxpby6dQgqOFuF61P1mBI0BppLF
JGydv8J9SIIbYJOyajFzMLrvL+xvKD1AblRFBtQke8ts+gz9B+oW7SmAVMb3gM4n
##...
-----END PGP PRIVATE KEY BLOCK-----

Add GitHub secrets for GitHub Action

The GitHub Action requires your GPG private key and passphrase to generate a release.

In your forked GitHub repository, go to Settings, then Secrets, then Actions, and click the New repository secret button to add the following repository secrets.

• GPG_PRIVATE_KEY. This is the private GPG key you generated in the previous step. Include the -----BEGIN... and -----END lines.
• PASSPHRASE. This is the passphrase for your GPG private key.

Create a provider release

The GitHub Action will trigger and create a release for your provider whenever a new valid version tag is pushed to the repository. Terraform provider versions must follow the Semantic Versioning standard (vMAJOR.MINOR.PATCH).

First, add your changes to a new commit.

$ git add .

Then, commit your changes.

$ git commit -m 'Add docs, goreleaser, and GH actions'

Next, create a new tag.

$ git tag v0.2.1

Finally, push the tag to GitHub.

$ git push origin v0.2.1

Verify provider release

In your forked repository, go to Actions. You should find the GitHub Action workflow you created earlier running.

Once the GitHub Action completes, you should find the release on the right-hand side of your main repository page.

Add GPG public key to Terraform Registry

Go to the Terraform Registry and sign in with your GitHub account.

Next, go to User Settings, then Signing Keys. Select + New GPG Key and add the GPG Public signing key you generated in a previous step.

Click Save to add your public signing key.

Publish your provider to Terraform Registry

Since you cannot un-publish a provider from the Terraform Registry, you will not actually publish your HashiCups provider in this tutorial. However, this section walks you through the steps you would follow for a real provider. It is safe to follow most of the steps in this section, but do not click the Publish button at the end.

In the Terraform Registry, select Publish, then Providers from the top navigation bar.

Select your organization, then the GitHub repository containing your Terraform provider.

Select your provider category, and read and agree to the "Terms of Use" by checking the box.

Next steps

Congratulations! You have released your provider and walked through the steps to add it to the Terraform Registry.

Over the course of these tutorials, you re-created the HashiCups provider and learned how to create data sources, authenticate the provider to the HashiCups client, create resources with CRUD functionality, and import existing resources. In addition, you have released and published the HashiCups provider to the Terraform Registry.

A full list of official, partner, and community Terraform providers can be found on the Terraform Provider Registry. We encourage you to find a provider you are interested in and start contributing!

• To quickly create a new Terraform provider, the Terraform Provider Scaffolding Framework is a template repository that can be cloned.
• To learn more about different methods to release and publish Terraform providers, refer to the Publishing Providers documentation page.
• To learn more about documenting Terraform providers, refer to the Provider Documentation documentation page.
• To learn more about the Terraform Plugin Framework, refer to the Terraform Plugin Framework documentation.
• Submit any Terraform Plugin Framework bug reports or feature requests to the development team in the Terraform Plugin Framework Github repository.
• Submit any Terraform Plugin Framework questions in the Terraform Plugin Framework Discuss forum.