Add sample NodeFeatureRules for all built-in labels

This patch adds sample NodeFeatureRules that correspond the built-in
labels created by nfd-worker (with its default configuration).

The samples provide examples on how to utilize NodeFeatureRules and an
easy way to modify the labels being generated. In order to replace the
built-in node labeling of nfd-worker with these sample rules, all node
labeling from nfd-worker must be disabled by setting the
"core.labelSources" configuration option to an empty list (or specify
"-label-sources= " on the command line). Then, with all nfd-worker side
labeling disabled, just apply the rules with

  kubectl apply -f samples/

samples/nodefeaturerule-cpu.yaml

@@ -0,0 +1,112 @@
+#
+# This NodeFeatureRule replicates all built-in cpu feature labels of NFD.
+#
+apiVersion: nfd.k8s-sigs.io/v1alpha1
+kind: NodeFeatureRule
+metadata:
+  name: nfd-builtin-cpu-features
+spec:
+  rules:
+    - name: "nfd built-in cpu-cpuid labels"
+      labelsTemplate: |
+        {{ range .cpu.cpuid }}cpu-cpuid.{{ .Name }}=true
+        {{ end }}
+      matchFeatures:
+        - feature: cpu.cpuid
+          matchName:
+            op: NotIn
+            value:
+              - "BMI1"
+              - "BMI2"
+              - "CLMUL"
+              - "CMOV"
+              - "CX16"
+              - "ERMS"
+              - "F16C"
+              - "HTT"
+              - "LZCNT"
+              - "MMX"
+              - "MMXEXT"
+              - "NX"
+              - "POPCNT"
+              - "RDRAND"
+              - "RDSEED"
+              - "RDTSCP"
+              - "SGX"
+              - "SGXLC"
+              - "SSE"
+              - "SSE2"
+              - "SSE3"
+              - "SSE4"
+              - "SSE42"
+              - "SSSE3"
+
+    - name: "nfd built-in cpu-hardware_multithreading label"
+      labelsTemplate: |
+        {{ range .cpu.topology }}cpu-{{ .Name }}={{ .Value }}
+        {{ end }}
+      matchFeatures:
+        - feature: cpu.topology
+          matchName:
+            op: In
+            value:
+              - "hardware_multithreading"
+
+    - name: "nfd built-in cpu-cstate and cpu-pstate labels"
+      labelsTemplate: |
+        {{ range .cpu.cstate }}cpu-cstate.{{ .Name }}={{ .Value }}
+        {{ end }}
+        {{ range .cpu.pstate }}cpu-pstate.{{ .Name }}={{ .Value }}
+        {{ end }}
+      matchAny:
+        - matchFeatures:
+          - feature: cpu.cstate
+            matchName:
+              op: Exists
+        - matchFeatures:
+          - feature: cpu.pstate
+            matchName:
+              op: Exists
+
+    - name: "nfd built-in cpu-model labels"
+      labelsTemplate: |
+        {{ range .cpu.model }}cpu-model.{{ .Name }}={{ .Value }}
+        {{ end }}
+      matchFeatures:
+        - feature: cpu.model
+          matchName:
+            op: Exists
+
+    - name: "nfd built-in cpu-security labels"
+      labelsTemplate: |
+        {{ range .cpu.security }}cpu-security.{{ .Name }}={{ .Value }}
+        {{ end }}
+      matchFeatures:
+        - feature: cpu.security
+          matchName:
+            op: NotIn
+            value:
+              - "tdx.total_keys"
+              - "sgx.epc"
+              - "sev.encrypted_state_ids"
+              - "sev.asids"
+
+    - name: "nfd built-in cpu-sst labels"
+      labelsTemplate: |
+        {{ range .cpu.sst }}cpu-power.sst_{{ .Name }}={{ .Value }}
+        {{ end }}
+      matchFeatures:
+        - feature: cpu.sst
+          matchName:
+            op: Exists
+
+    - name: "nfd built-in cpu-coprocessor labels"
+      labelsTemplate: |
+        {{ range .cpu.sst }}cpu-coprocessor.{{ .Name }}={{ .Value }}
+        {{ end }}
+      matchFeatures:
+        - feature: cpu.coprocessor
+          matchName:
+            op: In
+            value:
+              - "nx_gzip"

samples/nodefeaturerule-custom.yaml

@@ -0,0 +1,29 @@
+#
+# This NodeFeatureRule replicates all built-in static custom feature labels of NFD.
+#
+apiVersion: nfd.k8s-sigs.io/v1alpha1
+kind: NodeFeatureRule
+metadata:
+  name: nfd-builtin-custom-features
+spec:
+  rules:
+    - name: "nfd built-in static custom rdma.capable label"
+      labels:
+        "custom-rdma.capable": "true"
+      matchFeatures:
+        - feature: pci.device
+          matchExpressions:
+            vendor:
+              op: In
+              value: ["15b3"]
+
+    - name: "nfd built-in static custom rdma.available label"
+      labels:
+        "custom-rdma.available": "true"
+      matchFeatures:
+        - feature: kernel.loadedmodule
+          matchExpressions:
+            "ib_uverbs":
+              op: Exists
+            "rdma_ucm":
+              op: Exists

samples/nodefeaturerule-kernel.yaml

@@ -0,0 +1,38 @@
+#
+# This NodeFeatureRule replicates all built-in kernel feature labels of NFD.
+#
+apiVersion: nfd.k8s-sigs.io/v1alpha1
+kind: NodeFeatureRule
+metadata:
+  name: nfd-builtin-kernel-features
+spec:
+  rules:
+    - name: "nfd built-in kernel-version labels"
+      labelsTemplate: |
+        {{ range .kernel.version }}kernel-version.{{ .Name }}={{ .Value }}
+        {{ end }}
+      matchFeatures:
+        - feature: kernel.version
+          matchName:
+            op: Exists
+
+    - name: "nfd built-in kernel-config labels"
+      labelsTemplate: |
+        {{ range .kernel.config }}kernel-config.{{ .Name }}=true
+        {{ end }}
+      matchFeatures:
+        - feature: kernel.config
+          matchExpressions:
+            "NO_HZ": {op: In, value: ["y"]}
+            "NO_HZ_IDLE": {op: In, value: ["y"]}
+            "NO_HZ_FULL": {op: In, value: ["y"]}
+            "PREEMPT": {op: In, value: ["y"]}
+
+    - name: "nfd built-in kernel-selinux labels"
+      labels:
+        "kernel-selinux.enabled": "true"
+      matchFeatures:
+        - feature: kernel.selinux
+          matchExpressions:
+            "enabled":
+              op: IsTrue

samples/nodefeaturerule-local.yaml

@@ -0,0 +1,17 @@
+#
+# This NodeFeatureRule replicates all built-in local feature labels of NFD.
+#
+apiVersion: nfd.k8s-sigs.io/v1alpha1
+kind: NodeFeatureRule
+metadata:
+  name: nfd-builtin-local-features
+spec:
+  rules:
+    - name: "nfd built-in labels from the local feature source"
+      labelsTemplate: |
+        {{ range .local.label }}{{ .Name }}={{ .Value }}
+        {{ end }}
+      matchFeatures:
+        - feature: local.label
+          matchName:
+            op: Exists

samples/nodefeaturerule-memory.yaml

@@ -0,0 +1,34 @@
+#
+# This NodeFeatureRule replicates all built-in memory feature labels of NFD.
+#
+apiVersion: nfd.k8s-sigs.io/v1alpha1
+kind: NodeFeatureRule
+metadata:
+  name: nfd-builtin-memory-features
+spec:
+  rules:
+    - name: "nfd built-in memory-numa labels"
+      labels:
+        "memory-numa": "true"
+      matchFeatures:
+        - feature: memory.numa
+          matchExpressions:
+            "is_numa":
+              op: IsTrue
+
+    - name: "nfd built-in memory-nv.present label"
+      labelsTemplate: "{{ if gt (len .memory.nv ) 0 }}memory-nv.present=true{{ end }}"
+      matchFeatures:
+        - feature: memory.nv
+          matchName:
+            op: Exists
+
+    - name: "nfd built-in memory-nv.dax label"
+      labels:
+        "memory.nv.dax": "true"
+      matchFeatures:
+        - feature: memory.nv
+          matchExpressions:
+            "devtype":
+              op: In
+              value: ["nd_dax"]

samples/nodefeaturerule-network.yaml

@@ -0,0 +1,28 @@
+#
+# This NodeFeatureRule replicates all built-in networkfeature labels of NFD.
+#
+apiVersion: nfd.k8s-sigs.io/v1alpha1
+kind: NodeFeatureRule
+metadata:
+  name: nfd-builtin-network-features
+spec:
+  rules:
+    - name: "nfd built-in network-sriov.capable label"
+      labels:
+        "network-sriov.capable": "true"
+      matchFeatures:
+        - feature: network.device
+          matchExpressions:
+            "sriov_totalvfs":
+              op: Gt
+              value: ["0"]
+
+    - name: "nfd built-in network-sriov.configured label"
+      labels:
+        "network-sriov.configured": "true"
+      matchFeatures:
+        - feature: network.device
+          matchExpressions:
+            "network-sriov_numvfs":
+              op: Gt
+              value: ["0"]

samples/nodefeaturerule-pci.yaml

@@ -0,0 +1,32 @@
+#
+# This NodeFeatureRule replicates all built-in pci feature labels of NFD.
+#
+apiVersion: nfd.k8s-sigs.io/v1alpha1
+kind: NodeFeatureRule
+metadata:
+  name: nfd-builtin-pci-features
+spec:
+  rules:
+    - name: "nfd built-in pci-<device>.present labels"
+      labelsTemplate: |
+        {{ range .pci.device }}pci-{{ .class }}_{{ .vendor }}.present=true
+        {{ end }}
+      matchFeatures:
+        - feature: pci.device
+          matchExpressions:
+            "class":
+              op: InRegexp
+              value: ["^03", "^0b40", "^12"]
+
+    - name: "nfd built-in pci-<device>.sriov.capable labels"
+      labelsTemplate: |
+        {{ range .pci.device }}pci-{{ .class }}_{{ .vendor }}.sriov.capable=true
+        {{ end }}
+      matchFeatures:
+        - feature: pci.device
+          matchExpressions:
+            "class":
+              op: InRegexp
+              value: ["^03", "^0b40", "^12"]
+            "sriov_totalvfs":
+              op: Exists

samples/nodefeaturerule-storage.yaml

@@ -0,0 +1,18 @@
+#
+# This NodeFeatureRule replicates all built-in storage feature labels of NFD.
+#
+apiVersion: nfd.k8s-sigs.io/v1alpha1
+kind: NodeFeatureRule
+metadata:
+  name: nfd-builtin-storage-features
+spec:
+  rules:
+    - name: "nfd built-in storage-nonrotationaldisk label"
+      labels:
+        "storage-nonrotationaldisk": "true"
+      matchFeatures:
+        - feature: storage.block
+          matchExpressions:
+            "rotational":
+              op: In
+              value: ["0"]

samples/nodefeaturerule-system.yaml

@@ -0,0 +1,23 @@
+#
+# This NodeFeatureRule replicates all built-in system feature labels of NFD.
+#
+apiVersion: nfd.k8s-sigs.io/v1alpha1
+kind: NodeFeatureRule
+metadata:
+  name: nfd-builtin-system-features
+spec:
+  rules:
+    - name: "nfd built-in system-os_release labels"
+      labelsTemplate: |
+        {{ range .system.osrelease }}system-os_release.{{ .Name }}={{ .Value }}
+        {{ end }}
+      matchFeatures:
+        - feature: system.osrelease
+          matchName:
+            op: In
+            value:
+              - "ID"
+              - "VERSION_ID"
+              - "VERSION_ID.major"
+              - "VERSION_ID.minor"
+

samples/nodefeaturerule-usb.yaml

@@ -0,0 +1,19 @@
+#
+# This NodeFeatureRule replicates all built-in usb feature labels of NFD.
+#
+apiVersion: nfd.k8s-sigs.io/v1alpha1
+kind: NodeFeatureRule
+metadata:
+  name: nfd-builtin-usb-features
+spec:
+  rules:
+    - name: "nfd built-in usb-<device>.present labels"
+      labelsTemplate: |
+        {{ range .usb.device }}usb-{{ .class }}_{{ .vendor }}_{{ .device }}.present=true
+        {{ end }}
+      matchFeatures:
+        - feature: usb.device
+          matchExpressions:
+            "class":
+              op: In
+              value: ["0e", "ef", "fe", "ff"]