Detect if LibreNMS is installed from the official Docker image (librenms/docker#46) (#10879)

LibreNMS/Util/Env.php

@@ -45,4 +45,14 @@ class Env
 
         return $value;
     }
+
+    /**
+     * Detect if LibreNMS is installed from the official Docker image.
+     *
+     * @return bool
+     */
+    public static function librenmsDocker()
+    {
+        return getenv('LIBRENMS_DOCKER') === '1';
+    }
 }

LibreNMS/Validations/Dependencies.php

@@ -25,6 +25,7 @@
 
 namespace LibreNMS\Validations;
 
+use LibreNMS\Util\Env;
 use LibreNMS\Util\Git;
 use LibreNMS\ValidationResult;
 use LibreNMS\Validator;
@@ -39,6 +40,11 @@ class Dependencies extends BaseValidation
      */
     public function validate(Validator $validator)
     {
+        if (Env::librenmsDocker()) {
+            $validator->ok("Installed from the official Docker image; no Composer required");
+            return;
+        }
+
         # if git is not installed, do not assume composer is either
         if (!Git::repoPresent()) {
             $validator->ok("Installed from package; no Composer required");

LibreNMS/Validations/Updates.php

@@ -29,6 +29,7 @@ use DateTime;
 use DateTimeZone;
 use Exception;
 use LibreNMS\Config;
+use LibreNMS\Util\Env;
 use LibreNMS\Util\Git;
 use LibreNMS\ValidationResult;
 use LibreNMS\Validator;
@@ -37,6 +38,11 @@ class Updates extends BaseValidation
 {
     public function validate(Validator $validator)
     {
+        if (Env::librenmsDocker()) {
+            $validator->warn('Updates are managed through the official Docker image');
+            return;
+        }
+
         if (!Git::repoPresent()) {
             $validator->warn('Non-git install, updates are manual or from package');
             return;

LibreNMS/Validations/User.php

@@ -26,6 +26,7 @@
 namespace LibreNMS\Validations;
 
 use LibreNMS\Config;
+use LibreNMS\Util\Env;
 use LibreNMS\Util\Git;
 use LibreNMS\ValidationResult;
 use LibreNMS\Validator;
@@ -60,6 +61,11 @@ class User extends BaseValidation
             }
         }
 
+        // skip if docker image
+        if (Env::librenmsDocker()) {
+            return;
+        }
+
         # if no git, then we probably have different permissions by design
         if (!Git::repoPresent()) {
             return;