mirror of
https://github.com/kubernetes-sigs/node-feature-discovery.git
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f75303ce43
Support backreferencing of output values from previous rules. Enables
complex rule setups where custom features are further combined together
to form even more sophisticated higher level labels. The labels created
by preceding rules are available as a special 'rule.matched' feature
(for matchFeatures to use).
If referencing rules accross multiple configs/CRDs care must be taken
with the ordering. Processing order of rules in nfd-worker:
1. Static rules
2. Files from /etc/kubernetes/node-feature-discovery/custom.d/
in alphabetical order. Subdirectories are processed by reading their
files in alphabetical order.
3. Custom rules from main nfd-worker.conf
In nfd-master, NodeFeatureRule objects are processed in alphabetical
order (based on their metadata.name).
This patch also adds new 'vars' fields to the rule spec. Like 'labels',
it is a map of key-value pairs but no labels are generated from these.
The values specified in 'vars' are only added for backreferencing into
the 'rules.matched' feature. This may by desired in schemes where the
output of certain rules is only used as intermediate variables for other
rules and no labels out of these are wanted.
An example setup:
- name: "kernel feature"
labels:
kernel-feature:
matchFeatures:
- feature: kernel.version
matchExpressions:
major: {op: Gt, value: ["4"]}
- name: "intermediate var feature"
vars:
nolabel-feature: "true"
matchFeatures:
- feature: cpu.cpuid
matchExpressions:
AVX512F: {op: Exists}
- feature: pci.device
matchExpressions:
vendor: {op: In, value: ["8086"]}
device: {op: In, value: ["1234", "1235"]}
- name: top-level-feature
matchFeatures:
- feature: rule.matched
matchExpressions:
kernel-feature: "true"
nolabel-feature: "true"
254 lines
7.3 KiB
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254 lines
7.3 KiB
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#core:
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# labelWhiteList:
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# noPublish: false
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# sleepInterval: 60s
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# sources: [all]
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# klog:
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# addDirHeader: false
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# alsologtostderr: false
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# logBacktraceAt:
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# logtostderr: true
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# skipHeaders: false
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# stderrthreshold: 2
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# v: 0
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# vmodule:
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## NOTE: the following options are not dynamically run-time configurable
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## and require a nfd-worker restart to take effect after being changed
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# logDir:
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# logFile:
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# logFileMaxSize: 1800
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# skipLogHeaders: false
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#sources:
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# cpu:
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# cpuid:
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## NOTE: whitelist has priority over blacklist
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# attributeBlacklist:
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# - "BMI1"
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# - "BMI2"
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# - "CLMUL"
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# - "CMOV"
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# - "CX16"
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# - "ERMS"
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# - "F16C"
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# - "HTT"
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# - "LZCNT"
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# - "MMX"
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# - "MMXEXT"
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# - "NX"
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# - "POPCNT"
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# - "RDRAND"
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# - "RDSEED"
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# - "RDTSCP"
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# - "SGX"
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# - "SSE"
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# - "SSE2"
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# - "SSE3"
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# - "SSE4"
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# - "SSE42"
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# - "SSSE3"
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# attributeWhitelist:
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# kernel:
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# kconfigFile: "/path/to/kconfig"
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# configOpts:
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# - "NO_HZ"
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# - "X86"
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# - "DMI"
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# pci:
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# deviceClassWhitelist:
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# - "0200"
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# - "03"
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# - "12"
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# deviceLabelFields:
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# - "class"
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# - "vendor"
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# - "device"
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# - "subsystem_vendor"
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# - "subsystem_device"
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# usb:
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# deviceClassWhitelist:
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# - "0e"
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# - "ef"
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# - "fe"
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# - "ff"
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# deviceLabelFields:
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# - "class"
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# - "vendor"
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# - "device"
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# custom:
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# - name: "my.kernel.feature"
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# matchOn:
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# - loadedKMod: ["example_kmod1", "example_kmod2"]
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# - name: "my.pci.feature"
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# matchOn:
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# - pciId:
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# class: ["0200"]
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# vendor: ["15b3"]
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# device: ["1014", "1017"]
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# - pciId:
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# vendor: ["8086"]
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# device: ["1000", "1100"]
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# - name: "my.usb.feature"
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# matchOn:
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# - usbId:
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# class: ["ff"]
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# vendor: ["03e7"]
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# device: ["2485"]
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# - usbId:
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# class: ["fe"]
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# vendor: ["1a6e"]
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# device: ["089a"]
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# - name: "my.combined.feature"
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# matchOn:
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# - pciId:
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# vendor: ["15b3"]
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# device: ["1014", "1017"]
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# loadedKMod: ["vendor_kmod1", "vendor_kmod2"]
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# - name: "feature.by.nodename"
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# value: customValue
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# matchOn:
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# - nodename: ["worker-0", "my-.*-node"]
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#
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# # The following feature demonstrates the capabilities of the matchFeatures
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# - name: "my.ng.feature"
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# labels:
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# my-ng-feature: "true"
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# # matchFeatures implements a logical AND over all matcher terms in the
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# # list (i.e. all of the terms, or per-feature matchers, must match)
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# matchFeatures:
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# - feature: cpu.cpuid
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# matchExpressions:
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# AVX512F: {op: Exists}
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# - feature: cpu.cstate
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# matchExpressions:
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# enabled: {op: IsTrue}
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# - feature: cpu.pstate
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# matchExpressions:
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# no_turbo: {op: IsFalse}
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# scaling_governor: {op: In, value: ["performance"]}
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# - feature: cpu.rdt
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# matchExpressions:
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# RDTL3CA: {op: Exists}
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# - feature: cpu.sst
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# matchExpressions:
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# bf.enabled: {op: IsTrue}
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# - feature: cpu.topology
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# matchExpressions:
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# hardware_multithreading: {op: IsFalse}
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#
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# - feature: kernel.config
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# matchExpressions:
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# X86: {op: Exists}
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# LSM: {op: InRegexp, value: ["apparmor"]}
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# - feature: kernel.loadedmodule
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# matchExpressions:
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# e1000e: {op: Exists}
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# - feature: kernel.selinux
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# matchExpressions:
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# enabled: {op: IsFalse}
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# - feature: kernel.version
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# matchExpressions:
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# major: {op: In, value: ["5"]}
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# minor: {op: Gt, value: ["10"]}
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#
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# - feature: storage.block
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# matchExpressions:
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# rotational: {op: In, value: ["0"]}
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# dax: {op: In, value: ["0"]}
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#
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# - feature: network.device
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# matchExpressions:
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# operstate: {op: In, value: ["up"]}
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# speed: {op: Gt, value: ["100"]}
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#
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# - feature: memory.numa
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# matchExpressions:
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# node_count: {op: Gt, value: ["2"]}
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# - feature: memory.nv
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# matchExpressions:
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# devtype: {op: In, value: ["nd_dax"]}
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# mode: {op: In, value: ["memory"]}
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#
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# - feature: system.osrelease
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# matchExpressions:
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# ID: {op: In, value: ["fedora", "centos"]}
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# - feature: system.name
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# matchExpressions:
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# nodename: {op: InRegexp, value: ["^worker-X"]}
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#
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# - feature: local.label
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# matchExpressions:
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# custom-feature-knob: {op: Gt, value: ["100"]}
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#
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# # The following feature demonstrates the capabilities of the matchAny
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# - name: "my.ng.feature.2"
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# labels:
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# my-ng-feature-2: "my-value"
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# # matchAny implements a logical IF over all elements (sub-matchers) in
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# # the list (i.e. at least one feature matcher must match)
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# matchAny:
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# - matchFeatures:
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# - feature: kernel.loadedmodule
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# matchExpressions:
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# driver-module-X: {op: Exists}
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# - feature: pci.device
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# matchExpressions:
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# vendor: {op: In, value: ["8086"]}
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# class: {op: In, value: ["0200"]}
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# - matchFeatures:
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# - feature: kernel.loadedmodule
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# matchExpressions:
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# driver-module-Y: {op: Exists}
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# - feature: usb.device
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# matchExpressions:
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# vendor: {op: In, value: ["8086"]}
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# class: {op: In, value: ["02"]}
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#
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# # The following features demonstreate label templating capabilities
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# - name: "my-template-test"
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# labelsTemplate: |
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# {{ range .system.osrelease }}my-system-feature.{{ .Name }}={{ .Value }}
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# {{ end }}
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# matchFeatures:
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# - feature: system.osrelease
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# matchExpressions:
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# ID: {op: InRegexp, value: ["^open.*"]}
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# VERSION_ID.major: {op: In, value: ["13", "15"]}
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#
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# - name: "my-template-test-2"
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# labelsTemplate: |
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# {{ range .pci.device }}my-pci-device.{{ .class }}-{{ .device }}=with-cpuid
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# {{ end }}
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# matchFeatures:
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# - feature: pci.device
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# matchExpressions:
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# class: {op: InRegexp, value: ["^06"]}
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# vendor: ["8086"]
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# - feature: cpu.cpuid
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# matchExpressions:
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# AVX: {op: Exists}
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#
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# # The following examples demonstrate vars field and back-referencing
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# # previous labels and vars
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# - name: "my dummy kernel rule"
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# labels:
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# "my.kernel.feature": "true"
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# matchFeatures:
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# - feature: kernel.version
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# matchExpressions:
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# major: {op: Gt, value: ["2"]}
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#
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# - name: "my dummy rule with no labels"
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# vars:
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# "my.dummy.var": "1"
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# matchFeatures:
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# - feature: cpu.cpuid
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# matchExpressions: {}
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#
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# - name: "my rule using backrefs"
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# labels:
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# "my.backref.feature": "true"
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# matchFeatures:
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# - feature: rule.matched
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# matchExpressions:
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# my.kernel.feature: {op: IsTrue}
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# my.dummy.var: {op: Gt, value: ["0"]}
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