Sometimes Azure returns no data for KeyVault latency (e.g. there were no KeyVault requests). Client wanted this to default to a latency of 0.

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

@@ -3,18 +3,10 @@
 
 import json
 from datetime import datetime, timezone
-from cmk.base.plugins.agent_based.agent_based_api.v1 import register, Result, Service, State
+from cmk.base.plugins.agent_based.agent_based_api.v1 import register, Result, Service, State, Metric
 
 
 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
@@ -22,17 +14,27 @@ def check_state_above(alert_percentages, 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.
 def parse(string_table):
     lookup = {}
 
-    for json_str in string_table:
-        obj = json.loads(json_str)
+    for json_data in string_table:
+        obj = json.loads(json_data[0])
         name = obj["name"]
         group = obj["resource_group"]
-        lookup[f"{name}#{resource_group}"] = obj
+        lookup[f"{name}#{group}"] = obj
 
     return lookup
 
@@ -54,7 +56,7 @@ def check_keyvault(item, params, section):
 
     availability = metrics.get("Availability")
     capacity     = metrics.get("SaturationShoebox")
-    latency      = metrics.get("ServiceApiLatency")
+    latency      = metrics.get("ServiceApiLatency", 0)
     hits         = metrics.get("ServiceApiHit")
     results      = metrics.get("ServiceApiResult")
 
@@ -62,45 +64,78 @@ def check_keyvault(item, params, section):
     alert_capacity_percent     = params.get("capacity")
     alert_latency_milliseconds = params.get("latency")
 
-    if availability:
-        check_state_below(alert_availability_percent, availability)
+    if availability is not None:
+        yield Result(
+            state=check_state_below(alert_availability_percent, availability),
+            summary=f"Availability: {availability}%",
+        )
         yield Metric(
             name="availability",
             value=availability,
-            levels=alert_availability_percent,
-            boundaries=(0, 100)
+            boundaries=(0, 100),
+        )
+    else:
+        yield Result(
+            state=State.UNKNOWN,
+            summary="Availability: N/A",
         )
 
-    if capacity:
-        check_state_above(alert_capacity_percent, capacity)
+    if capacity is not None:
+        yield Result(
+            state=check_state_above(alert_capacity_percent, capacity),
+            summary=f"Capacity: {capacity}%"
+        )
         yield Metric(
             name="capacity",
             value=capacity,
-            levels=alert_capacity_percent,
-            boundaries=(0, 100)
+            boundaries=(0, 100),
+        )
+    else:
+        yield Result(
+            state=State.UNKNOWN,
+            summary="Capacity: N/A",
         )
 
-    if latency:
-        check_state_above(alert_latency_milliseconds, latency)
+
+    if latency is not None:
+        yield Result(
+            state=check_state_above(alert_latency_milliseconds, latency),
+            summary=f"Latency: {latency}ms",
+        )
         yield Metric(
             name="latency",
             value=latency,
-            levels=alert_latency_milliseconds,
-            boundaries=(0, None)
+            boundaries=(0, None),
+        )
+    else:
+        yield Result(
+            state=State.UNKNOWN,
+            summary="Latency: N/A",
         )
 
-    if hits:
+
+    if hits is not None:
         yield Metric(
             name="hits",
             value=hits,
-            boundaries=(0, None)
+            boundaries=(0, None),
+        )
+    else:
+        yield Result(
+            state=State.UNKNOWN,
+            summary="Hits: N/A",
         )
 
-    if results:
+    if results is not None:
         yield Metric(
             name="results",
             value=results,
-            boundaries=(0, None)
+            boundaries=(0, None),
+        )
+    else:
+        yield Result(
+            state=State.UNKNOWN,
+            summary="Results: N/A",
         )
 
 
@@ -111,7 +146,7 @@ def check_firewall(item, params, section):
     if firewall is None:
         return
 
-    metrics = vault["metrics"]
+    metrics = firewall["metrics"]
 
     availability = metrics.get("FirewallHealth")
     throughput   = metrics.get("Throughput")
@@ -120,34 +155,78 @@ def check_firewall(item, params, section):
     alert_availability_percent = params.get("availability")
     alert_latency_milliseconds = params.get("latency")
 
-    if availability:
-        check_state_below(alert_availability_percent, availability)
+    if availability is not None:
+        yield Result(
+            state=check_state_below(alert_availability_percent, availability),
+            summary=f"Availability: {availability}%",
+        )
         yield Metric(
             name="availability",
             value=availability,
-            levels=alert_availability_percent,
             boundaries=(0, 100)
         )
+    else:
+        yield Result(
+            state=State.UNKNOWN,
+            summary="Availability: N/A",
+        )
 
-    if latency:
-        check_state_above(alert_latency_milliseconds, latency)
+    if latency is not None:
+        yield Result(
+            state=check_state_above(alert_latency_milliseconds, latency),
+            summary=f"Latency: {latency}ms",
+        )
         yield Metric(
             name="latency",
             value=latency,
-            levels=alert_latency_milliseconds,
             boundaries=(0, None)
         )
+    else:
+        yield Result(
+            state=State.UNKNOWN,
+            summary="Latency: N/A",
+        )
 
-    if throughput:
+    if throughput is not None:
         yield Metric(
             name="throughput",
-            value=thoughput,
+            value=throughput,
             boundaries=(0, None)
         )
-
+    else:
+        yield Result(
+            state=State.UNKNOWN,
+            summary="Throughput: N/A",
+        )
 
 def check_defender(item, params, section):
-    yield Result(state=state, summary="Expires in %d days" % remaining_days)
+    alert = section.get(item)
+    if alert is None:
+        return
+
+    details = alert["alert"]
+    status = details["status"]
+
+    if status != "Active" and status != "InProgress":
+        return
+
+    severity = details["severity"]
+    url = details["url"]
+    info = details["info"]
+
+    if severity == "High":
+        state = State.CRIT
+    elif severity == "Medium":
+        state = State.WARN
+    elif severity == "Low":
+        state = State.OK
+    else:
+        state = State.UNKNOWN
+
+    yield Result(
+        state=state,
+        summary=f"{status}: {info}: {url}"
+    )
 
 
 register.agent_section(

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

@@ -28,6 +28,8 @@ 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):
+    #import http.client
+    #http.client.HTTPConnection.debuglevel = 1
     try:
         res = request.urlopen(req)
         return res.read()
@@ -38,20 +40,33 @@ def get_url(req, default):
             raise e
 
 
-def get_token(tenant, username, password):
+def set_proxy(req, proxy):
+    if proxy is None or proxy == '':
+        return
+
+    match = re.match('(https?)://(.+?)/?$', proxy, re.I)
+    req.set_proxy(match[2], match[1].lower())
+
+    # The explicit Host header is required for this to also work with a proxy.
+    # If we don't include it, Python sends the proxy's Host to Microsoft
+    # instead! So we have to set the Host to the Microsoft domain manually.
+    match = re.match('https://(.+?)/', req.full_url, re.I)
+    req.add_header('Host', match[1] + ":443")
+
+
+def get_token(tenant, username, password, proxy):
     data = parse.urlencode({
-        'username': username,
-        'password': password,
-        'grant_type': 'password',
+        'client_id': username,
+        'client_secret': password,
+        'grant_type': 'client_credentials',
         'claims': '{"access_token": {"xms_cc": {"values": ["CP1"]}}}',
         'scope': 'https://management.core.windows.net//.default offline_access openid profile',
         'client_info': 1,
-        # This is actually the client ID of the Azure CLI tools
-        'client_id': '04b07795-8ddb-461a-bbee-02f9e1bf7b46',
     })
 
     req = request.Request(f'https://login.microsoftonline.com/{tenant}/oauth2/v2.0/token',
                           data=str.encode(data))
+    set_proxy(req, proxy)
 
     res = get_url(req, None)
     if res is None:
@@ -62,31 +77,32 @@ def get_token(tenant, username, password):
     return token
 
 
-def get_json(token, path, version='2023-07-01'):
+def get_json(token, proxy, 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}'})
+    set_proxy(req, proxy)
     res = get_url(req, "[]")
     data = json.loads(res)
     return data['value']
 
 
-def list_subscriptions(token):
-    return get_json(token, '/subscriptions')
+def list_subscriptions(token, proxy):
+    return get_json(token, proxy, '/subscriptions')
 
 
-def list_vaults(token, subscription):
-    return get_json(token, f'/subscriptions/{subscription}/resources?$filter=resourceType%20eq%20%27Microsoft.KeyVault%2Fvaults%27')
+def list_vaults(token, proxy, subscription):
+    return get_json(token, proxy, f'/subscriptions/{subscription}/resources?$filter=resourceType%20eq%20%27Microsoft.KeyVault%2Fvaults%27')
 
 
-def list_firewalls(token, subscription):
-    return get_json(token, f'/subscriptions/{subscription}/resources?$filter=resourceType%20eq%20%27Microsoft.Network%2FazureFirewalls%27')
+def list_firewalls(token, proxy, subscription):
+    return get_json(token, proxy, f'/subscriptions/{subscription}/resources?$filter=resourceType%20eq%20%27Microsoft.Network%2FazureFirewalls%27')
 
 
-def list_defender_alerts(token, subscription):
-    return get_json(token, f'/subscriptions/{subscription}/providers/Microsoft.Security/alerts', '2022-01-01')
+def list_defender_alerts(token, proxy, subscription):
+    return get_json(token, proxy, f'/subscriptions/{subscription}/providers/Microsoft.Security/alerts', '2022-01-01')
 
 
-def get_recent_metrics(token, path, metrics):
+def get_recent_metrics(token, proxy, path, metrics):
     end   = datetime.now()
     start = end - timedelta(minutes=2)
 
@@ -94,7 +110,7 @@ def get_recent_metrics(token, path, metrics):
     end_str     = end.isoformat().split('.')[0] + 'Z'
     metrics_str = ','.join(metrics)
 
-    return get_json(token, f'{path}/providers/microsoft.insights/metrics?metricnames={metrics_str}&timespan={start_str}/{end_str}', '2023-10-01')
+    return get_json(token, proxy, f'{path}/providers/microsoft.insights/metrics?metricnames={metrics_str}&timespan={start_str}/{end_str}', '2023-10-01')
 
 
 def metrics_to_lookup(metrics):
@@ -112,28 +128,26 @@ def metrics_to_lookup(metrics):
 
 
 def get_args(argv):
-    if len(argv) != 5 or not argv[1] in ['keyvault', 'firewall', 'defender']:
-        print(f"{sys.argv[0]} <command> <tenand ID> <username> <password>", file=sys.stderr)
+    if (len(argv) != 5 and len(argv) != 6) or argv[1] not in ['keyvault', 'firewall', 'defender']:
+        print(f"{sys.argv[0]} <command> <tenant ID> <username> <password> <proxy>", file=sys.stderr)
         print(f"Valid commands are: 'keyvault', 'firewall', 'defender'", file=sys.stderr)
+        print(f"Proxy is an optional argument", file=sys.stderr)
         exit(1)
-    return argv[1], argv[2], argv[3], argv[4]
+    return argv[1], argv[2], argv[3], argv[4], (argv[5] if len(argv) == 6 else None)
 
 
 def print_json(obj):
     print(json.dumps(obj))
 
 
-command, tenant, username, password = get_args(sys.argv)
+command, tenant, username, password, proxy = get_args(sys.argv)
+token = get_token(tenant, username, password, proxy)
 
-print(f"<<<azure_{command}:sep(0)>>>")
-
-token = get_token(tenant, username, password)
-
-for subscription in list_subscriptions(token):
+for subscription in list_subscriptions(token, proxy):
     subscription_id = subscription['subscriptionId']
 
     if command == 'defender':
-        for alert in list_defender_alerts(token, subscription_id):
+        for alert in list_defender_alerts(token, proxy, subscription_id):
             properties = alert['properties']
             status = properties['status']
 
@@ -155,8 +169,8 @@ for subscription in list_subscriptions(token):
             })
 
     elif command == 'firewall':
-        for firewall in list_firewalls(token, subscription_id):
-            metrics = get_recent_metrics(token, firewall['id'], FIREWALL_METRICS)
+        for firewall in list_firewalls(token, proxy, subscription_id):
+            metrics = get_recent_metrics(token, proxy, firewall['id'], FIREWALL_METRICS)
             print_json({
                 'type': command,
                 'name': firewall['name'],
@@ -166,8 +180,8 @@ for subscription in list_subscriptions(token):
             })
 
     elif command == 'keyvault':
-        for vault in list_vaults(token, subscription_id):
-            metrics = get_recent_metrics(token, vault['id'], VAULT_METRICS)
+        for vault in list_vaults(token, proxy, subscription_id):
+            metrics = get_recent_metrics(token, proxy, vault['id'], VAULT_METRICS)
             print_json({
                 'type':     command,
                 'name':     vault['name'],

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

@@ -1 +0,0 @@
-agent_azure

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

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+echo '<<<azure_defender:sep(0)>>>'
+
+dir=$(dirname -- "${BASH_SOURCE[0]}")
+"$dir"/agent_azure_common defender "$1" "$2" "$3" "$4"

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

@@ -1 +0,0 @@
-agent_azure

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

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+echo '<<<azure_firewall:sep(0)>>>'
+
+dir=$(dirname -- "${BASH_SOURCE[0]}")
+"$dir"/agent_azure_common firewall "$1" "$2" "$3" "$4"

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

@@ -1 +0,0 @@
-agent_azure

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

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+echo '<<<azure_keyvault:sep(0)>>>'
+
+dir=$(dirname -- "${BASH_SOURCE[0]}")
+"$dir"/agent_azure_common keyvault "$1" "$2" "$3" "$4"

check_mk-azure/local/share/check_mk/checks/agent_azure

@@ -1,22 +0,0 @@
-#!/usr/bin/env python3
-# Copyright (C) 2024 Spearhead Systems SRL
-
-def get_params(params):
-    return params["tenant"], params["client"], params["secret"]
-
-def agent_azure_keyvault(params, hostname, ipaddress):
-    tenant, client, secret = get_params(params)
-    return ["keyvault", tenant, client, secret]
-
-def agent_azure_firewall(params, hostname, ipaddress):
-    tenant, client, secret = get_params(params)
-    return ["firewall", tenant, client, secret]
-
-def agent_azure_defender(params, hostname, ipaddress):
-    tenant, client, secret = get_params(params)
-    return ["defender", tenant, client, secret]
-
-special_agent_info["azure_keyvault"] = agent_azure_keyvault
-special_agent_info["azure_firewall"] = agent_azure_firewall
-special_agent_info["azure_defender"] = agent_azure_defender
-

check_mk-azure/local/share/check_mk/checks/agent_azure_common

@@ -0,0 +1,25 @@
+#!/usr/bin/env python3
+# Copyright (C) 2024 Spearhead Systems SRL
+
+import cmk.utils.password_store
+
+def agent_azure_args(params, hostname, ipaddress):
+    # Extract password either from params, or from password store:
+    # ('password', '<some password>'): password is in params directly
+    # ('store', '<password name>'): password must be looked up in store by name
+    password_info = params["password"]
+    if password_info[0] == "password":
+        password = password_info[1]
+    else:
+        password = cmk.utils.password_store.extract(password_info[1])
+
+    return [
+        params["tenant"],
+        params["username"],
+        password,
+        params.get("proxy") or ""  # optional
+    ]
+
+special_agent_info["azure_keyvault"] = agent_azure_args
+special_agent_info["azure_firewall"] = agent_azure_args
+special_agent_info["azure_defender"] = agent_azure_args

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

@@ -21,38 +21,52 @@ from cmk.gui.valuespec import (
 )
 
 
-def _valuespec_special_agents_azure_discovery():
+def _discovery(title):
     return Dictionary(
-        title=_("Azure Discovery"),
+        title=_(title),
+        required_keys=["tenant", "username", "password"],
         elements=[
             (
                 "tenant",
                 TextInput(
                     title=_("Tenant ID / Directory ID"),
                     allow_empty=False,
-                    size=45,
                 ),
             ),
             (
-                "client",
+                "username",
                 TextInput(
                     title=_("Client ID / Application ID"),
                     allow_empty=False,
-                    size=45,
                 ),
             ),
             (
-                "secret",
+                "password",
                 IndividualOrStoredPassword(
 #                Password(
                     title=_("Client Secret"),
                     allow_empty=False,
-                    size=45,
                 ),
             ),
+            (
+                "proxy",
+                TextInput(
+                    title=_("Proxy"),
+                ),
+            ),
+
         ],
     )
 
+def _valuespec_special_agents_azure_keyvault_discovery():
+    return _discovery("Azure Key Vault Metrics Discovery")
+
+def _valuespec_special_agents_azure_firewall_discovery():
+    return _discovery("Azure Firewall Metrics Discovery")
+
+def _valuespec_special_agents_azure_defender_discovery():
+    return _discovery("Azure Defender Alerts Discovery")
+
 def _valuespec_special_agents_azure_keyvault_check():
     return Dictionary(
         title=_("Azure Key Vault Metric Checks"),
@@ -161,7 +175,7 @@ rulespec_registry.register(
         name="special_agents:azure_keyvault",
         group=RulespecGroupCheckParametersDiscovery,
         match_type='dict',
-        valuespec=_valuespec_special_agents_azure_discovery,
+        valuespec=_valuespec_special_agents_azure_keyvault_discovery,
     )
 )
 rulespec_registry.register(
@@ -169,7 +183,7 @@ rulespec_registry.register(
         name="special_agents:azure_firewall",
         group=RulespecGroupCheckParametersDiscovery,
         match_type='dict',
-        valuespec=_valuespec_special_agents_azure_discovery,
+        valuespec=_valuespec_special_agents_azure_firewall_discovery,
     )
 )
 rulespec_registry.register(
@@ -177,7 +191,7 @@ rulespec_registry.register(
         name="special_agents:azure_defender",
         group=RulespecGroupCheckParametersDiscovery,
         match_type='dict',
-        valuespec=_valuespec_special_agents_azure_discovery,
+        valuespec=_valuespec_special_agents_azure_defender_discovery,
     )
 )
 
@@ -187,6 +201,8 @@ rulespec_registry.register(
         group=RulespecGroupCheckParametersApplications,
         match_type="dict",
         parameter_valuespec=_valuespec_special_agents_azure_keyvault_check,
+        item_spec=lambda: TextInput(title=_("Key Vault")),
+        title=lambda: _("Azure Key Vault Metrics"),
     )
 )
 rulespec_registry.register(
@@ -195,5 +211,7 @@ rulespec_registry.register(
         group=RulespecGroupCheckParametersApplications,
         match_type="dict",
         parameter_valuespec=_valuespec_special_agents_azure_firewall_check,
+        item_spec=lambda: TextInput(title=_("Firewall")),
+        title=lambda: _("Azure Firewall Metrics"),
     )
 )