Update README.md

README.md

@@ -11,9 +11,9 @@ This repository contains an Azure Function that monitors Azure App Registrations
       
  ## Requirements
     
-
+**Environment Variables**: 
-   - **Environment Variables**:
+The following environment variables are required for the function to authenticate to Microsoft Graph API and send emails. 
-   - The following environment variables are required for the function to authenticate to Microsoft Graph API and send emails:
+They will be set by the pipeline, an AzureDevOps Variable Group called "FunctionVariables" must be created manually.
       - `AZURE_CLIENT_ID`: The Azure AD application client ID.
       - `AZURE_CLIENT_SECRET`: The Azure AD application client secret.
       - `AZURE_TENANT_ID`: The Azure AD tenant ID.
@@ -26,11 +26,49 @@ This repository contains an Azure Function that monitors Azure App Registrations
       - `FROM_NAME`: The name displayed for the `FROM_EMAIL` address.
       - `TO_EMAIL`: The recipient email address for the notifications.
     
- ## Setup
+# Function Workflow
+-----------------
+
+1.  **Authentication**: The function authenticates to Microsoft Graph API using the Azure AD application credentials (Client ID, Client Secret, Tenant ID).
+2.  **Fetching Data**:
+    *   The function fetches all app registrations and their associated password credentials using Microsoft Graph API.
+    *   It fetches user account details for the specified Entra ID accounts and checks for password expiration.
+3.  **Processing Expiry Dates**: The credentials are processed to calculate the days until expiration. The credentials are sorted and categorized as:
+    *   **Green**: More than 30 days to expiration.
+    *   **Yellow**: Between 8-30 days to expiration.
+    *   **Orange**: 7 days or less to expiration.
+    *   **Red**: Expired.
+    *   **Blue**: No expiration set.
+4.  **Email Notification**:
+    *   The function generates an HTML report that contains all relevant app registrations and account details.
+    *   The report is sent via email to the specified recipient and optionally to the owners of the apps.
+
+# Email Notification Example
+--------------------------
+
+The email notification contains an HTML table that shows:
+*   **App Registrations**: Display name, secret name, expiry date, days to expiry, and owners.
+*   **Entra ID Accounts**: Display name, user principal name, password expiry date, and status.
+
+### Color Coding in the Notification:
+
+*   **Green**: More than 30 days until expiry.
+*   **Yellow**: Between 8-30 days until expiry.
+*   **Orange**: 7 days or less until expiry.
+*   **Red**: Expired.
+*   **Blue**: No expiration set.
+
+Notes
+-----
+
+*   Ensure that the monitored accounts list is correctly populated with the UPNs of the users whose password expiry you want to track.
+*   The email notification will only be sent if there are app registrations or Entra ID accounts with upcoming or expired credentials.
+
+ ## Local Setup
     
  ### 1. Clone the repository:
  ```bash
-    git clone <repo_url>
+    git clone https://github.com/OliPassey/AzAppRegistrationExpiry.git
 ```    
 
 ### 2. Install dependencies:
@@ -60,46 +98,91 @@ Example for local development (Linux/macOS):
     export FROM_NAME="Your Name"
     export TO_EMAIL="recipient-email@domain.com"
  ```
+or create a local.settings.json file:
+```bash
+{
+  "IsEncrypted": false,
+  "Values": {
+    "AzureWebJobsStorage": "<connection-string>",
+    "FUNCTIONS_WORKER_RUNTIME": "python",
+    "AZURE_CLIENT_ID": "",
+    "AZURE_CLIENT_SECRET": "",
+    "AZURE_TENANT_ID": "",
+    "SMTP_SERVER": "",
+    "SMTP_PORT": "",
+    "SMTP_USERNAME": "",
+    "SMTP_PASSWORD": "",
+    "FROM_EMAIL": "",
+    "FROM_NAME": "",
+    "TO_EMAIL": "",
+    "MONITORED_ACCOUNTS": ""
+  }
+}
+```
+### 4a. Run Locally:
+----------------------------
+
+# Install Required tools:
+
+1.  **Python 3.11**
+    *   Download from [python.org](vscode-file://vscode-app/c:/Program%20Files/Microsoft%20VS%20Code/resources/app/out/vs/code/electron-sandbox/workbench/workbench.html)
+    *   Ensure it's added to your PATH
+2.  **Azure Functions Core Tools v4**
+    *   Install via npm: `npm install -g azure-functions-core-tools@4`
+    *   Or download from [GitHub releases](vscode-file://vscode-app/c:/Program%20Files/Microsoft%20VS%20Code/resources/app/out/vs/code/electron-sandbox/workbench/workbench.html)
+3.  **Azure CLI**
+    *   Download from [Microsoft's website](vscode-file://vscode-app/c:/Program%20Files/Microsoft%20VS%20Code/resources/app/out/vs/code/electron-sandbox/workbench/workbench.html)
+    *   Needed for authenticating with Azure services
+
+# Setup local environment
+
+1.  **Create a Python Virtual Environment**
+    
+    ## Navigate to your project directory
+    
+    ```bash cd C:/code/AzAppRegistrationExpiry ```
+    
+    ## Create a virtual environment
+    
+    ```bash python -m venv .venv ``` 
+    
+    ## Activate the environment
+    
+    ## On Windows:
+    
+    ```bash     .venv\Scripts\activate ```
+    
+    ## On macOS/Linux:
+    
+    ```bash  source .venv/bin/activate ```
+    
+2.  **Install Dependencies**
+    
+    ```bash pip install -r requirements.txt ```
+    
+3.  **Setup local.settings.json**
+    *   You already have this file with your settings configured
+    *   Make sure it's in your project root directory
+
+# Running the Function Locally
+
+
+1.  **Start the Function App**
+    
+  ```bash 
+     func start 
+```
+    
+2.  **Trigger the Function Manually** (since it's a timer trigger)
+      
+    ```bash func function invoke aio --no-interactive ```
 
 ### 4. Deploy to Azure:
+----------------------------
 
 Follow [Azure Functions deployment guide](https://docs.microsoft.com/en-us/azure/azure-functions/functions-deploy) to deploy the function to Azure.
-
+Also see additional Wiki document "Pipelines & Deployment"
-Function Workflow
+```bash
------------------
+func azure functionapp publish AzureAppRegExpMon --python
-
+```
-1.  **Authentication**: The function authenticates to Microsoft Graph API using the Azure AD application credentials (Client ID, Client Secret, Tenant ID).
-2.  **Fetching Data**:
-    *   The function fetches all app registrations and their associated password credentials using Microsoft Graph API.
-    *   It fetches user account details for the specified Entra ID accounts and checks for password expiration.
-3.  **Processing Expiry Dates**: The credentials are processed to calculate the days until expiration. The credentials are sorted and categorized as:
-    *   **Green**: More than 30 days to expiration.
-    *   **Yellow**: Between 8-30 days to expiration.
-    *   **Orange**: 7 days or less to expiration.
-    *   **Red**: Expired.
-    *   **Blue**: No expiration set.
-4.  **Email Notification**:
-    *   The function generates an HTML report that contains all relevant app registrations and account details.
-    *   The report is sent via email to the specified recipient and optionally to the owners of the apps.
-
-Email Notification Example
---------------------------
-
-The email notification contains an HTML table that shows:
-*   **App Registrations**: Display name, secret name, expiry date, days to expiry, and owners.
-*   **Entra ID Accounts**: Display name, user principal name, password expiry date, and status.
-
-### Color Coding in the Notification:
-
-*   **Green**: More than 30 days until expiry.
-*   **Yellow**: Between 8-30 days until expiry.
-*   **Orange**: 7 days or less until expiry.
-*   **Red**: Expired.
-*   **Blue**: No expiration set.
-
-Notes
------
-
-*   Ensure that the monitored accounts list is correctly populated with the UPNs of the users whose password expiry you want to track.
-*   The email notification will only be sent if there are app registrations or Entra ID accounts with upcoming or expired credentials.