16143 Add --snmp-backend option to cmk

CMK-6270

Change-Id: Ib8a9a631b3a40a19f1e50437bbe4e357267560c3

.werks/16143

@@ -0,0 +1,13 @@
+Title: Add --snmp-backend option to cmk
+Class: feature
+Compatible: compat
+Component: checks
+Date: 1697629280
+Edition: cre
+Level: 1
+Version: 2.3.0b1
+
+Add <tt>--snmp-backend = classic|inline|stored-walk</tt> option to
+the cmk command-line utility.  The following modes are affected:
+dump-agent, snmpwalk, snmpget, check-discovery, discover, check,
+inventory, inventory-as-check, inventorize-marked-hosts.

cmk/base/automations/check_mk.py

@@ -261,6 +261,7 @@ def execute(self, args: list[str]) -> ServiceDiscoveryResult:
             on_error=on_error,
             selected_sections=NO_SELECTION,
             simulation_mode=config.simulation_mode,
+            snmp_backend_override=None,
         )
         for hostname in hostnames:
 
@@ -490,6 +491,7 @@ def _execute_discovery(
         on_error=on_error,
         selected_sections=NO_SELECTION,
         simulation_mode=config.simulation_mode,
+        snmp_backend_override=None,
     )
     ip_address = (
         None
@@ -599,6 +601,7 @@ def _execute_autodiscovery() -> tuple[Mapping[HostName, DiscoveryResult], bool]:
         on_error=OnError.IGNORE,
         selected_sections=NO_SELECTION,
         simulation_mode=config.simulation_mode,
+        snmp_backend_override=None,
     )
     section_plugins = SectionPluginMapper()
     host_label_plugins = HostLabelPluginMapper(ruleset_matcher=ruleset_matcher)
@@ -1926,6 +1929,7 @@ def _execute_agent(
                 discovery=1.5 * check_interval,
                 inventory=1.5 * check_interval,
             ),
+            snmp_backend_override=None,
         ):
             source_info = source.source_info()
             if source_info.fetcher_type is FetcherType.SNMP:
@@ -2300,6 +2304,7 @@ def execute(self, args: list[str]) -> GetAgentOutputResult:
                         discovery=1.5 * check_interval,
                         inventory=1.5 * check_interval,
                     ),
+                    snmp_backend_override=None,
                 ):
                     source_info = source.source_info()
                     if source_info.fetcher_type is FetcherType.SNMP:

cmk/base/checkers.py

@@ -240,6 +240,7 @@ def __init__(
         selected_sections: SectionNameCollection,
         simulation_mode: bool,
         max_cachefile_age: MaxAge | None = None,
+        snmp_backend_override: SNMPBackendEnum | None,
     ) -> None:
         self.config_cache: Final = config_cache
         self.file_cache_options: Final = file_cache_options
@@ -249,6 +250,7 @@ def __init__(
         self.selected_sections: Final = selected_sections
         self.simulation_mode: Final = simulation_mode
         self.max_cachefile_age: Final = max_cachefile_age
+        self.snmp_backend_override: Final = snmp_backend_override
 
     def __call__(
         self, host_name: HostName, *, ip_address: HostAddress | None
@@ -284,8 +286,10 @@ def __call__(
                     on_scan_error=self.on_error if nodes is None else OnError.RAISE,
                     simulation_mode=self.simulation_mode,
                     file_cache_options=self.file_cache_options,
-                    file_cache_max_age=self.max_cachefile_age
-                    or self.config_cache.max_cachefile_age(host_name),
+                    file_cache_max_age=(
+                        self.max_cachefile_age or self.config_cache.max_cachefile_age(host_name)
+                    ),
+                    snmp_backend_override=self.snmp_backend_override,
                 )
                 for host_name_, ip_address_ in hosts
             ),

cmk/base/dump_host.py

@@ -187,6 +187,7 @@ def dump_host(config_cache: ConfigCache, hostname: HostName) -> None:
             config_cache=config_cache,
             simulation_mode=config.simulation_mode,
             file_cache_max_age=MaxAge.zero(),
+            snmp_backend_override=None,
         )
     ]