Heroku Sync
Learn how to configure a Heroku Sync for Hanzo KMS.
Prerequisites:
- Set up and add secrets to Hanzo KMS Cloud
- Create a Heroku Connection
-
Navigate to Project > Integrations and select the Secret Syncs tab. Click on the Add Sync button.

-
Select the Heroku option.

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Configure the Source from where secrets should be retrieved, then click Next.

- Environment: The project environment to retrieve secrets from.
- Secret Path: The folder path to retrieve secrets from.
If you need to sync secrets from multiple folder locations, check out secret imports.
-
Configure the Destination to where secrets should be deployed, then click Next.

- Heroku Connection: The Heroku Connection to authenticate with.
- Heroku App: The Heroku application to sync secrets to.
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Configure the Sync Options to specify how secrets should be synced, then click Next.

- Initial Sync Behavior: Determines how Hanzo KMS should resolve the initial sync.
- Import - Prefer values from Hanzo KMS: Import secrets from Heroku to Hanzo KMS; if a secret with the same name already exists in Hanzo KMS, do nothing. Afterwards, sync secrets to Heroku.
- Import - Prefer values from Heroku: Import secrets from Heroku to Hanzo KMS; if a secret with the same name already exists in Hanzo KMS, replace its value with the one from Heroku. Afterwards, sync secrets to Heroku.
- Overwrite Destination Secrets: Removes any secrets at the destination endpoint not present in Hanzo KMS.
- Key Schema: Template that determines how secret names are transformed when syncing, using
{{secretKey}}as a placeholder for the original secret name and{{environment}}for the environment.
We highly recommend using a Key Schema to ensure that Hanzo KMS only manages the specific keys you intend, keeping everything else untouched.
- Auto-Sync Enabled: If enabled, secrets will automatically be synced from the source location when changes occur. Disable to enforce manual syncing only.
- Disable Secret Deletion: If enabled, Hanzo KMS will not remove secrets from the sync destination. Enable this option if you intend to manage some secrets manually outside of Hanzo KMS.
- Initial Sync Behavior: Determines how Hanzo KMS should resolve the initial sync.
-
Configure the Details of your Heroku Sync, then click Next.

- Name: The name of your sync. Must be slug-friendly.
- Description: An optional description for your sync.
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Review your Heroku Sync configuration, then click Create Sync.

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If enabled, your Heroku Sync will begin syncing your secrets to the destination endpoint.

To create a Heroku Sync, make an API request to the Create Heroku Sync API endpoint.
Sample request
curl --request POST \
--url https://app.kms.hanzo.ai/api/v1/secret-syncs/heroku \
--header 'Content-Type: application/json' \
--data '{
"name": "my-heroku-sync",
"projectId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"description": "an example sync",
"connectionId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"environment": "dev",
"secretPath": "/my-secrets",
"isEnabled": true,
"syncOptions": {
"initialSyncBehavior": "overwrite-destination",
"disableSecretDeletion": true
},
"destinationConfig": {
"app": "8dd25736052a4b50",
"appName": "my-app"
}
}'Sample response
{
"secretSync": {
"id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"name": "my-heroku-sync",
"description": "an example sync",
"isEnabled": true,
"version": 1,
"folderId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"connectionId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"createdAt": "2023-11-07T05:31:56Z",
"updatedAt": "2023-11-07T05:31:56Z",
"syncStatus": "succeeded",
"lastSyncJobId": "123",
"lastSyncMessage": null,
"lastSyncedAt": "2023-11-07T05:31:56Z",
"importStatus": null,
"lastImportJobId": null,
"lastImportMessage": null,
"lastImportedAt": null,
"removeStatus": null,
"lastRemoveJobId": null,
"lastRemoveMessage": null,
"lastRemovedAt": null,
"syncOptions": {
"initialSyncBehavior": "overwrite-destination",
"disableSecretDeletion": true
},
"projectId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"connection": {
"app": "heroku",
"name": "my-heroku-connection",
"id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
},
"environment": {
"slug": "dev",
"name": "Development",
"id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
},
"folder": {
"id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"path": "/my-secrets"
},
"destination": "heroku",
"destinationConfig": {
"app": "8dd25736052a4b50",
"appName": "my-app"
}
}
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