[NEW] refactoring of maintenance_server_monitoring in several modules

maintenance_server_monitoring_disk/models/maintenance_equipment.py

@@ -0,0 +1,52 @@
+from odoo import fields, models, api
+
+USED_DISK_SPACE_COMMAND = "df /srv -h | tail -n +2 | sed -r 's/ +/ /g' | cut -f 5 -d ' ' | cut -f 1 -d %"
+MAX_USED_DISK_SPACE_WARNING = 70
+MAX_USED_DISK_SPACE_ERROR = 90
+
+
+class MaintenanceEquipment(models.Model):
+    _inherit = 'maintenance.equipment'    
+        
+    used_disk_space = fields.Float('Percent of used disk space', readonly=True)
+         
+    def get_tests(self):
+        res = super(MaintenanceEquipment, self).get_tests()
+        res.append("used_disk_space")
+        return res
+    
+    def test_used_disk_space(self):        
+        """
+            test Used disk space with a bash command called by ssh
+
+            Args:
+                ssh (paramiko.SSHClient): ssh client
+
+            Returns:
+                MonitoringTest: representing current test with :
+                    * result = -2 if error
+                    * result = percent of Used disk space if no error
+                    * error defined with MonitoringTest.ERROR or MonitoringTest.WARNING depending on result comparaison 
+                        with MAX_USED_DISK_SPACE_WARNING and MAX_USED_DISK_SPACE_ERROR
+                    * log file
+        """      
+        test = self.MonitoringTest("Used disk space")      
+        try:
+            ssh = self.get_ssh_connection()
+            if not ssh:
+                return test.test_error(-2, "No ssh connection")            
+            _stdin, stdout, _stderr = ssh.exec_command(USED_DISK_SPACE_COMMAND)
+            used_disk_space = float(stdout.read().decode())                    
+            if used_disk_space < MAX_USED_DISK_SPACE_WARNING:
+                return test.test_ok(used_disk_space, f"{used_disk_space}% used")                
+            elif used_disk_space < MAX_USED_DISK_SPACE_ERROR:
+                # disk usage between WARNING and ERROR steps
+                return test.test_warning(used_disk_space, f"{used_disk_space}% used (>{MAX_USED_DISK_SPACE_WARNING})")                
+            else:
+                # disk usage higher than ERROR steps
+                return test.test_error(used_disk_space, f"{used_disk_space}% used (>{MAX_USED_DISK_SPACE_ERROR})")                
+                                
+        except Exception as e:
+            return test.test_error(-2, f"{e}")                   
+            
+