Merge pull request #207 from appwrite/document-runtime-env

Add docs for activating and disabling function runtimes

Author: TorstenDittmann

app/views/docs/functions.phtml

@@ -685,7 +685,7 @@ class MainActivity : AppCompatActivity() {
 
 <p>Appwrite provides multiple code runtimes to execute your custom functions. Each runtime uses a Docker image tied to a specific language version to provide a safe, isolated playground to run your team's code.</p>
 
-<p>Below is a list of supported Cloud Functions runtimes. The Appwrite team continually adds support for new runtimes. You can easily change which runtimes your Appwrite setup supports by editing your server <a href="/docs/environment-variables#functions">environment variables</a>.</p>
+<p>Below is a list of supported Cloud Functions runtimes. The Appwrite team continually adds support for new runtimes.</p>
 
 <table cellspacing="0" cellpadding="0" border="0" class="full margin-bottom-large">
     <thead>
@@ -708,6 +708,8 @@ class MainActivity : AppCompatActivity() {
     </tbody>
 </table>
 
+<p>By default, the following runtimes are enabled: "node-16.0, php-8.0, python-3.9, ruby-3.0". To enable or disable runtimes, you can edit the <span class="tag">_APP_FUNCTIONS_RUNTIMES</span> <a href="/docs/functions#environmentVariables">environment variable</a>.</p>
+
 <h2><a href="/docs/functions#environmentVariables" id="environmentVariables">Environment Variables</a></h2>
 
 <p>Environment variables supplied by Appwrite in addition to your own defined environment variables that you can access from your function code. These variables give you information about your execution runtime environment.</p>
@@ -744,6 +746,12 @@ class MainActivity : AppCompatActivity() {
             </td>
             <td>Either 'event' when triggered by one of the selected scopes, 'http' when triggered by an HTTP request or the Appwrite Console, or 'schedule' when triggered by the cron schedule.</td>
         </tr>
+        <tr>
+            <td>
+                _APP_FUNCTIONS_RUNTIMES
+            </td>
+            <td>Enables function runtimes. Pass a list of runtime names separated by a comma, for example "node-16.0,php-8.0,python-3.9,ruby-3.0".</td>
+        </tr>
         <tr>
             <td>
                 APPWRITE_FUNCTION_RUNTIME_NAME