Kernel Configs
Collects and analyzes information about available Kernel Configs on the machine.
Kernel Configs Collector
To collect information about the available Kernel Configs, you can use the kernelConfigs
collector.
Only config options with values =y (built into kernel)
, =m (loadable module)
or =n (feature is disabled)
will be collected.
Parameters
None.
Example Collector Definition
apiVersion: troubleshoot.sh/v1beta2
kind: SupportBundle
metadata:
name: kernel-configs
spec:
hostCollectors:
- kernelConfigs: {}
Included Resources
The results of the kernelConfigs
collector are stored in the host-collectors/system
directory of the support bundle.
kernel-configs.json
Example of the resulting JSON file:
{
"CONFIG_9P_FS": "y",
"CONFIG_ARCH_CORRECT_STACKTRACE_ON_KRETPROBE": "y",
"CONFIG_ARCH_HAS_STRICT_MODULE_RWX": "y",
"CONFIG_ARCH_HAVE_TRACE_MMIO_ACCESS": "y",
"CONFIG_ARCH_SUPPORTS_UPROBES": "y",
"CONFIG_ARCH_WANT_DEFAULT_BPF_JIT": "y",
"CONFIG_AUTOFS_FS": "y",
"CONFIG_BLK_CGROUP": "y",
"CONFIG_BLK_CGROUP_PUNT_BIO": "y"
}
Kernel Configs Analyzer
The kernelConfigs
analyzer supports only pass
or fail
outcomes. In the case of a fail
outcome, the placeholder {{ .ConfigsNotFound }}
can be used to render a list of missing kernel configurations in the message.
Parameters
selectedConfigs
(Required)
List of kernel config parameters that must be available.
Example Analyzer Definition
apiVersion: troubleshoot.sh/v1beta2
kind: SupportBundle
metadata:
name: kernel-configs
spec:
hostCollectors:
- kernelConfigs: {}
hostAnalyzers:
- kernelConfigs:
collectorName: "Kernel Configs Test"
strict: true
selectedConfigs:
- CONFIG_CGROUP_FREEZER=y
- CONFIG_NETFILTER_XTABLES=m
outcomes:
- pass:
message: "required kernel configs are available"
- fail:
message: "missing kernel config(s): {{ .ConfigsNotFound }}"