> For the complete documentation index, see [llms.txt](https://docs.aohwv.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.aohwv.dev/getting-started/02-app-registration.md).

# Step 1 — App Registration

CloudSync uses an Azure App Registration to authenticate your users via Microsoft Entra ID (Azure AD). You only need to do this once.

## 1.1 Create the registration

1. Navigate to the [Azure Portal](https://portal.azure.com)
2. Go to **Microsoft Entra ID** → **App registrations** → **New registration**
3. Fill in the form:
   * **Name:** `CloudSync` (or any name you prefer)
   * **Supported account types:** *Accounts in this organizational directory only*
   * **Redirect URI:** Leave blank for now — you'll add this after deployment
4. Click **Register**

{% hint style="info" %}
Copy the **Application (client) ID** shown on the overview page — you'll need it during first login.
{% endhint %}

***

## 1.2 Configure API permissions

Go to **API permissions** → **Add a permission** → **Microsoft Graph** → **Delegated permissions** and add the following:

| Permission  | Type      | Description                   |
| ----------- | --------- | ----------------------------- |
| `email`     | Delegated | View users' email address     |
| `openid`    | Delegated | Sign users in                 |
| `profile`   | Delegated | View users' basic profile     |
| `User.Read` | Delegated | Sign in and read user profile |

Once added, click **Grant admin consent for \[your organization]** and confirm.

{% hint style="success" %}
All four permissions should show a green **Granted** status before proceeding.
{% endhint %}

***

## 1.3 Create a client secret

1. Go to **Certificates & secrets** → **New client secret**
2. Set a description (e.g. `cloudsync-vm`) and an expiry
3. Click **Add**
4. **Copy the secret value immediately** — it won't be shown again

{% hint style="warning" %}
Store the client secret securely. You will be prompted to enter it on first SSH login to your VM.
{% endhint %}


---

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