Checkmk Werk 7770: Fix "Periodic service discovery" disabling rules breaking config

ID: 7770 Title: Fix "Periodic service discovery" disabling rules breaking config Component: Core & setup Level: 2 Class: Bug fix Version: 1.7.0i1 In 1.6.0b1 a rule in the ruleset "Periodic service discovery" that is configured with the option "Do not perform service discovery check" resulted in the following exception when updating the core config (e.g. with cmk -U): C+: OMD[testsite]:~$ cmk --debug -Uv Generating configuration for core (type cmc)... time period '24X7': 2 time points Configuration Error: 'NoneType' object has no attribute '__getitem__' Traceback (most recent call last): File "/omd/sites/testsite/bin/cmk", line 94, in exit_status = modes.call(mode_name, mode_args, opts, args) File "/omd/sites/testsite/lib/python/cmk_base/modes/__init__.py", line 72, in call return mode.handler_function(*handler_args) File "/omd/sites/testsite/lib/python/cmk_base/modes/check_mk.py", line 1106, in mode_update do_update(create_core(options), with_precompile=True) File "/omd/sites/testsite/lib/python/cmk_base/core_config.py", line 266, in do_update do_create_config(core, with_agents=with_precompile) File "/omd/sites/testsite/lib/python/cmk_base/core_config.py", line 219, in do_create_config create_core_config(core) File "/omd/sites/testsite/lib/python/cmk_base/core_config.py", line 235, in create_core_config core.create_config() File "/omd/sites/testsite/lib/python/cmk_base/cee/core_cmc.py", line 63, in create_config _create_config_hook(self._cmc_file) File "/omd/sites/testsite/lib/python/cmk_base/cee/core_cmc.py", line 123, in _create_config_hook hosts_config = _measure_time(cmc_all_hosts) File "/omd/sites/testsite/lib/python/cmk_base/cee/core_cmc.py", line 156, in _measure_time result = func(*args, **kwargs) File "/omd/sites/testsite/lib/python/cmk_base/cee/core_cmc.py", line 457, in cmc_all_hosts cmc_hosts = CMCHosts(config_cache.all_active_hosts(), CMCHostConfig) File "/omd/sites/testsite/lib/python/cmk_base/cee/core_cmc.py", line 501, in __init__ self._compute(hostnames, host_class) File "/omd/sites/testsite/lib/python/cmk_base/cee/core_cmc.py", line 513, in _compute host_config = host_class(hostname) File "/omd/sites/testsite/lib/python/cmk_base/cee/core_cmc.py", line 966, in __init__ self._compute() File "/omd/sites/testsite/lib/python/cmk_base/cee/core_cmc.py", line 984, in _compute self._cmc_services() File "/omd/sites/testsite/lib/python/cmk_base/cee/core_cmc.py", line 1259, in _cmc_services if disc_check_params["check_interval"] \ TypeError: 'NoneType' object has no attribute '__getitem__' C-: