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Node feature discovery for Kubernetes
b2d9e15a00
Drop the private fields – that were supposed to be used for caching parsed templates – from the Rule type. Keep the API typedefs cleaner and simpler. Moreover, the caching was not even used in practice, effectively complicating code without any benefit: the way the types are used in nfd-master creates a local copy of Rule type storing the cached template in the copy, wasting it from any future users. There are also other possible caveats in caching like we tried to do it. For example the objects returned by the api lister are supposed to be treated as read-only - in particular if we would be to modify them there should at least be proper locking in place as nfd-master potentially processes the same rule (the same Go object) in parallel for multiple nodes. If any optimization like this will be pursued it should be done properly, probably with private type(s) at the consumer's end, not contaminating the API types. |
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Node Feature Discovery
Welcome to Node Feature Discovery – a Kubernetes add-on for detecting hardware features and system configuration!
See our Documentation for detailed instructions and reference
Quick-start – the short-short version
$ kubectl apply -k https://github.com/kubernetes-sigs/node-feature-discovery/deployment/overlays/default?ref=v0.14.3
namespace/node-feature-discovery created
customresourcedefinition.apiextensions.k8s.io/nodefeaturerules.nfd.k8s-sigs.io created
serviceaccount/nfd-master created
clusterrole.rbac.authorization.k8s.io/nfd-master created
clusterrolebinding.rbac.authorization.k8s.io/nfd-master created
configmap/nfd-worker-conf created
service/nfd-master created
deployment.apps/nfd-master created
daemonset.apps/nfd-worker created
$ kubectl -n node-feature-discovery get all
NAME READY STATUS RESTARTS AGE
pod/nfd-master-555458dbbc-sxg6w 1/1 Running 0 56s
pod/nfd-worker-mjg9f 1/1 Running 0 17s
...
$ kubectl get no -o json | jq '.items[].metadata.labels'
{
"kubernetes.io/arch": "amd64",
"kubernetes.io/os": "linux",
"feature.node.kubernetes.io/cpu-cpuid.ADX": "true",
"feature.node.kubernetes.io/cpu-cpuid.AESNI": "true",
...