[NEW] refactoring of maintenance_server_monitoring in several modules

maintenance_server_monitoring_memory/.gitignore

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+*.*~
+*pyc

maintenance_server_monitoring_memory/README.rst

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+======================================
+maintenance_server_monitoring_memory
+======================================
+
+Improve monitoring with ping test
+
+Installation
+============
+
+Use Odoo normal module installation procedure to install
+``maintenance_server_monitoring_memory``.
+
+Known issues / Roadmap
+======================
+
+None yet.
+
+Bug Tracker
+===========
+
+Bugs are tracked on `our issues website <https://github.com/elabore-coop/maintenance-tools/issues>`_. In case of
+trouble, please check there if your issue has already been
+reported. If you spotted it first, help us smashing it by providing a
+detailed and welcomed feedback.
+
+Credits
+=======
+
+Contributors
+------------
+
+* Clément Thomas
+
+Funders
+-------
+
+The development of this module has been financially supported by:
+* Elabore (https://elabore.coop)
+
+
+Maintainer
+----------
+
+This module is maintained by Elabore.

maintenance_server_monitoring_memory/__init__.py

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+# -*- coding: utf-8 -*-
+
+from . import models

maintenance_server_monitoring_memory/__manifest__.py

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+# Copyright 2023 Stéphan Sainléger (Elabore)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+{
+    "name": "maintenance_server_monitoring_memory",
+    "version": "14.0.1.0.0",
+    "author": "Elabore",
+    "website": "https://elabore.coop",
+    "maintainer": "Clément Thomas",
+    "license": "AGPL-3",
+    "category": "Tools",
+    "summary": "Monitor memory on remote hosts",
+    # any module necessary for this one to work correctly
+    "depends": [        
+        "maintenance_server_monitoring", 
+        "maintenance_server_ssh"
+    ],
+    "qweb": [
+        # "static/src/xml/*.xml",
+    ],
+    "external_dependencies": {
+        "python": [],
+    },
+    # always loaded
+    "data": [        
+         
+    ],
+    # only loaded in demonstration mode
+    "demo": [],
+    "js": [],
+    "css": [],
+    "installable": True,
+    # Install this module automatically if all dependency have been previously
+    # and independently installed.  Used for synergetic or glue modules.
+    "auto_install": False,
+    "application": False,
+}

maintenance_server_monitoring_memory/models/__init__.py

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+from . import maintenance_equipment

maintenance_server_monitoring_memory/models/maintenance_equipment.py

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+from odoo import fields, models, api
+
+
+AVAILABLE_MEMORY_PERCENT_COMMAND = "free | grep Mem | awk '{print $3/$2 * 100.0}'"
+MIN_AVAILABLE_MEMORY_PERCENT_WARNING = 20
+MIN_AVAILABLE_MEMORY_PERCENT_ERROR = 5
+
+class MaintenanceEquipment(models.Model):
+    _inherit = 'maintenance.equipment'    
+    
+    available_memory_percent = fields.Float('Percent of available memory', readonly=True)
+         
+    def get_tests(self):
+        res = super(MaintenanceEquipment, self).get_tests()
+        res.append("available_memory_percent")
+        return res
+    
+    def test_available_memory_percent(self):    
+        """
+            test available memory 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 available memory if no error
+                    * error defined with MonitoringTest.ERROR or MonitoringTest.WARNING depending on result comparaison 
+                        with MIN_AVAILABLE_MEMORY_PERCENT_WARNING and MIN_AVAILABLE_MEMORY_PERCENT_ERROR
+                    * log file
+        """      
+        test = self.MonitoringTest("Available memory percent")      
+        try:
+            ssh = self.get_ssh_connection()
+            if not ssh:
+                return test.test_error(-2, "No ssh connection")            
+            _stdin, stdout, _stderr = ssh.exec_command(AVAILABLE_MEMORY_PERCENT_COMMAND)
+            available_memory_percent = float(stdout.read().decode())
+            if available_memory_percent > MIN_AVAILABLE_MEMORY_PERCENT_WARNING:                
+                return test.test_ok(available_memory_percent, f"{available_memory_percent}% available")
+            elif available_memory_percent > MIN_AVAILABLE_MEMORY_PERCENT_ERROR: 
+                # memory between warning and error step
+                return test.test_warning(available_memory_percent, f"{available_memory_percent}% available (<{MIN_AVAILABLE_MEMORY_PERCENT_WARNING})")                
+            else:
+                # memory available lower than error step
+                return test.test_error(available_memory_percent, f"{available_memory_percent}% available (<{MIN_AVAILABLE_MEMORY_PERCENT_ERROR})")
+        except Exception as e:
+            return test.test_error(-2, f"{e}")                         
+            
+