Fix some metric checks.

check_mk-azure/local/lib/check_mk/base/plugins/agent_based/azure.py

@@ -6,6 +6,22 @@ from datetime import datetime, timezone
 from cmk.base.plugins.agent_based.agent_based_api.v1 import register, Result, Service, State
 
 
+def check_state_below(alert_percentages, measured_percent):
+    if alert_percentages:
+        if alert_percentages[1] <= measured_percent:
+            return State.CRIT
+        elif alert_percentages[0] <= measured_percent:
+            return State.WARN
+    return State.OK
+
+def check_state_above(alert_percentages, measured_percent):
+    if alert_percentages:
+        if alert_percentages[1] >= measured_percent:
+            return State.CRIT
+        elif alert_percentages[0] >= measured_percent:
+            return State.WARN
+    return State.OK
+
 # Convert JSON entries into dictionaries indexed by name. We're assuming here
 # that the name is unique across AZs and resource groups. If not, add the
 # 'location' and 'resource_group' fields in each object to the name.
@@ -27,26 +43,110 @@ def discover(section):
         yield Service(item=name)
 
 
-# Given a specific metric, look it up in the parsed output, and produce
+# Given a specific keyvault metric, look it up in the parsed output, and produce
 # results on that service based upon the metric's range.
 def check_keyvault(item, params, section):
-    warn_days = params.get("warn_days")
+    vault = section.get(item)
-    crit_days = params.get("crit_days")
+    if vault is None:
-
-    cert = section.get(item)
-    if cert is None:
         return
 
-    expires = datetime.fromisoformat(cert["attributes"]["expires"])
+    metrics = vault["metrics"]
-    now = datetime.now(timezone.utc)
-    remaining_days = (expires - now).days
 
-    state = State.OK
+    availability = metrics.get("Availability")
-    if crit_days is not None and remaining_days < crit_days:
+    capacity     = metrics.get("SaturationShoebox")
-        state = State.CRIT
+    latency      = metrics.get("ServiceApiLatency")
-    elif warn_days is not None and remaining_days < warn_days:
+    hits         = metrics.get("ServiceApiHit")
-        state = State.WARN
+    results      = metrics.get("ServiceApiResult")
 
+    alert_availability_percent = params.get("availability")
+    alert_capacity_percent     = params.get("capacity")
+    alert_latency_milliseconds = params.get("latency")
+
+    if availability:
+        check_state_below(alert_availability_percent, availability)
+        yield Metric(
+            name="availability",
+            value=availability,
+            levels=alert_availability_percent,
+            boundaries=(0, 100)
+        )
+
+    if capacity:
+        check_state_above(alert_capacity_percent, capacity)
+        yield Metric(
+            name="capacity",
+            value=capacity,
+            levels=alert_capacity_percent,
+            boundaries=(0, 100)
+        )
+
+    if latency:
+        check_state_above(alert_latency_milliseconds, latency)
+        yield Metric(
+            name="latency",
+            value=latency,
+            levels=alert_latency_milliseconds,
+            boundaries=(0, None)
+        )
+
+    if hits:
+        yield Metric(
+            name="hits",
+            value=hits,
+            boundaries=(0, None)
+        )
+
+    if results:
+        yield Metric(
+            name="results",
+            value=results,
+            boundaries=(0, None)
+        )
+        
+
+# Given a specific firewall metric, look it up in the parsed output, and produce
+# results on that service based upon the metric's range.
+def check_firewall(item, params, section):
+    firewall = section.get(item)
+    if firewall is None:
+        return
+
+    metrics = vault["metrics"]
+
+    availability = metrics.get("FirewallHealth")
+    throughput   = metrics.get("Throughput")
+    latency      = metrics.get("FirewallLatencyPng")
+
+    alert_availability_percent = params.get("availability")
+    alert_latency_milliseconds = params.get("latency")
+
+    if availability:
+        check_state_below(alert_availability_percent, availability)
+        yield Metric(
+            name="availability",
+            value=availability,
+            levels=alert_availability_percent,
+            boundaries=(0, 100)
+        )
+
+    if latency:
+        check_state_above(alert_latency_milliseconds, latency)
+        yield Metric(
+            name="latency",
+            value=latency,
+            levels=alert_latency_milliseconds,
+            boundaries=(0, None)
+        )
+
+    if throughput:
+        yield Metric(
+            name="throughput",
+            value=thoughput,
+            boundaries=(0, None)
+        )
+     
+
+def check_defender(item, params, section):
     yield Result(state=state, summary="Expires in %d days" % remaining_days)
 
 
@@ -75,7 +175,7 @@ register.check_plugin(
     name="azure_firewall_metrics",
     service_name="Azure Firewall Metric %s",
 
-    check_function=check_keyvault,
+    check_function=check_firewall,
     check_default_parameters={},
     check_ruleset_name="azure_firewall_metrics",
 
@@ -91,7 +191,7 @@ register.check_plugin(
     name="azure_defender_alerts",
     service_name="Azure Defender Alert %s",
 
-    check_function=check_keyvault,
+    check_function=check_defender,
     check_default_parameters={},
     check_ruleset_name="azure_defender_alerts",
 

check_mk-azure/local/share/check_mk/agents/special/agent_azure

@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 # Copyright (C) 2024 Spearhead Systems SRL
 
-from urllib   import request, parse
+from urllib   import request, parse, error
 from datetime import datetime, timezone, timedelta
 import json
 import sys
@@ -26,6 +26,18 @@ REGION_RE = re.compile('/locations/(.+?)/')
 RESOURCE_GROUP_RE = re.compile('/resourceGroups/(.+?)/')
 
 
+# https://learn.microsoft.com/en-us/azure/azure-resource-manager/management/request-limits-and-throttling
+def get_url(req, default):
+    try:
+        res = request.urlopen(req)
+        return res.read()
+    except error.HTTPError as e:
+        if e.code == 429:
+            return default
+        else:
+            raise e
+
+
 def get_token(tenant, username, password):
     data = parse.urlencode({
         'username': username,
@@ -40,9 +52,12 @@ def get_token(tenant, username, password):
 
     req = request.Request(f'https://login.microsoftonline.com/{tenant}/oauth2/v2.0/token',
                           data=str.encode(data))
-    res = request.urlopen(req)
 
-    token_data = json.loads(res.read())
+    res = get_url(req, None)
+    if res is None:
+        return
+
+    token_data = json.loads(res)
     token = token_data['access_token']
     return token
 
@@ -50,8 +65,8 @@ def get_token(tenant, username, password):
 def get_json(token, path, version='2023-07-01'):
     url = f"https://management.azure.com{path}{'?' in path and '&' or '?'}api-version={version}"
     req = request.Request(url, headers={'Authorization': f'Bearer {token}'})
-    res = request.urlopen(req)
+    res = get_url(req, "[]")
-    data = json.loads(res.read())
+    data = json.loads(res)
     return data['value']
 
 
@@ -157,4 +172,3 @@ for subscription in list_subscriptions(token):
                 'resource_group': re.search(RESOURCE_GROUP_RE, vault['id'])[1],
                 'metrics':  metrics_to_lookup(metrics),
             })
-

check_mk-azure/local/share/check_mk/web/plugins/wato/azure.py

@@ -56,30 +56,105 @@ def _valuespec_special_agents_azure_discovery():
 def _valuespec_special_agents_azure_keyvault_metric_check():
     return Dictionary(
         title=_("Azure Key Vault Metric Checks"),
-        optional_keys=["warn_percent", "crit_percent"],
         elements=[
             (
-                "warn_percent",
+                "availability",
-                Integer(
+                Tuple(
-                    minvalue=0,
+                    title=_("Availability"),
-                    default_value=98,
+                    help=_("If drops below these percentages over the past minute, issue alert"),
-                    title=_("Warn when percentage falls below this threshold"),
+                    elements=[
+                        Percentage(
+                            title=_("Warn if below"),
+                            default_value=98
                         ),
+                        Percentage(
+                            title=_("Crit if below"),
+                            default_value=90
+                        )
+                    ]
+                )
             ),
             (
-                "crit_percent",
+                "capacity",
-                Integer(
+                Tuple(
-                    minvalue=0,
+                    title=_("Capacity used"),
-                    default_value=90,
+                    help=_("If goes above these percentages over the past minute, issue alert"),
-                    title=_("Warn when percentage falls below this threshold"),
+                    elements=[
+                        Percentage(
+                            title=_("Warn if above"),
+                            default_value=80
                         ),
+                        Percentage(
+                            title=_("Crit if above"),
+                            default_value=98
+                        )
+                    ]
+                )
+            ),
+            (
+                "latency",
+                Tuple(
+                    title=_("Request latency"),
+                    help=_("If goes above the average milliseconds over the past minute, issue alert"),
+                    elements=[
+                        Integer(
+                            title=_("Warn if above"),
+                            default_value=100,
+                            minvalue=0,
+                        ),
+                        Integer(
+                            title=_("Crit if above"),
+                            default_value=2000,
+                            minvalue=0,
+                        )
+                    ]
+                )
             ),
         ],
     )
 
 def _valuespec_special_agents_azure_firewall_metric_check():
-    return _valuespec_special_agents_azure_keyvault_metric_check()
+    return Dictionary(
-
+        title=_("Azure Firewall Metric Checks"),
+        elements=[
+            (
+                "availability",
+                Tuple(
+                    title=_("Availability"),
+                    help=_("If drops below these percentages over the past minute, issue alert"),
+                    elements=[
+                        Percentage(
+                            title=_("Warn if below"),
+                            default_value=98
+                        ),
+                        Percentage(
+                            title=_("Crit if below"),
+                            default_value=90
+                        )
+                    ]
+                )
+            ),
+            (
+                "latency",
+                Tuple(
+                    title=_("Request latency"),
+                    help=_("If goes above the average milliseconds over the past minute, issue alert"),
+                    elements=[
+                        Integer(
+                            title=_("Warn if above"),
+                            default_value=100,
+                            minvalue=0,
+                        ),
+                        Integer(
+                            title=_("Crit if above"),
+                            default_value=2000,
+                            minvalue=0,
+                        )
+                    ]
+                )
+            ),
+        ],
+    )
 
 rulespec_registry.register(
     HostRulespec(
@@ -122,4 +197,3 @@ rulespec_registry.register(
         parameter_valuespec=_valuespec_special_agents_azure_keyvault_metric_check,
     )
 )
-