> AI agents: this is one page from PostHog's docs. Full index of Markdown docs for LLMs: https://posthog.com/llms.txt

# Linking Scalr as a source

**Alpha release**

This source is currently in **alpha**. The interface and available tables may change.

![](https://res.cloudinary.com/dmukukwp6/image/upload/texture_tan_9608fcca70)

![](https://res.cloudinary.com/dmukukwp6/image/upload/texture_tan_dark_a92b0e022d)

Let AI connect your sources for you

Skip the manual setup — run this in your project and the wizard auto-detects your databases and APIs and connects them to PostHog.

`npx @posthog/wizard warehouse`

![PostHog Wizard hedgehog](https://res.cloudinary.com/dmukukwp6/image/upload/wizard_3f8bb7a240.png)

![](https://res.cloudinary.com/dmukukwp6/image/upload/wizard_3f8bb7a240.png)Let AI connect your sources for you

The Scalr connector syncs your Terraform and OpenTofu infrastructure data – environments, workspaces, and runs – into PostHog, so you can analyze infrastructure-as-code activity alongside your product data.

## Prerequisites

You need a [Scalr](https://www.scalr.com/) account with API access. Create a service account token in Scalr with read access to environments, workspaces, and runs.

To create a token, go to **Account scope > IAM > Service accounts** in Scalr and generate a new token with the required permissions.

## Adding a data source

1.  In PostHog, go to the [Sources tab](https://app.posthog.com/data-management/sources) of the data pipeline section.
2.  Click **\+ New source** and click **Link** next to this source.
3.  Enter your credentials (see [Configuration](#configuration) below) and click **Next**.
4.  Select the tables you want to sync, choose a sync method and frequency, then click **Import**.

Once the syncs are complete, you can start querying this data in PostHog.

When linking Scalr, you'll need:

-   **Scalr hostname** – the public hostname of your Scalr account (e.g., `example.scalr.io`).

-   **Account ID** – your Scalr account ID (e.g., `acc-example`). Find this in your Scalr account settings.

-   **API token** – a service account token with read access to environments, workspaces, and runs.

## Sync modes

Each table can be synced in one of several modes, depending on what the source supports:

-   **Webhook** (when available) – the source pushes changes to PostHog in real time. Fastest freshness, lowest ongoing cost, and the only mode that reliably captures updates and deletes.
-   **Incremental** – only new or updated rows are synced on each run, using a cursor field (such as an `updated_at` timestamp). Cheaper than a full refresh, but deletes aren't captured.
-   **Append only** – new rows are appended using a cursor field; existing rows are never updated. Ideal for immutable, append-only tables like event logs.
-   **Full refresh** – the whole table is reloaded on every sync. Use it when a table has no reliable cursor or when you need deletions reflected.

See [sync methods](/docs/cdp/sources.md#sync-methods) for a full explanation of how each mode works and how to choose between them.

The `workspaces` table supports incremental sync using the `updated_at` field. The `environments` and `runs` tables use full refresh only.

Runs use full refresh because their status changes over time and the Scalr API doesn't expose an update filter for this resource.

## Configuration

| Option | Type | Required |
| --- | --- | --- |
| `Scalr hostname` | text | Yes |
| `Account ID` | text | Yes |
| `API token` | password | Yes |

## Supported tables

| Table | Description | Sync method | Incremental field | Primary key |
| --- | --- | --- | --- | --- |
| `environments` | Scalr environments group related workspaces and share policies and configuration. | Full refresh | — | — |
| `workspaces` | Scalr workspaces contain infrastructure configuration, runs, and state files. | Incremental, Full refresh | updated\_at | — |
| `runs` | Terraform and OpenTofu runs, including their current status and status transition times. | Full refresh | — | — |

## Troubleshooting

If your sync is failing or data looks wrong, see the [Data warehouse troubleshooting guide](/docs/data-warehouse/troubleshooting.md). If that doesn't help, [contact support](https://us.posthog.com/#panel=support%3Asupport%3Adata_warehouse%3A%3Atrue) – we're happy to help.

### Still have questions?

Ask PostHog AI

### Was this page useful?

HelpfulCould be better