Configurability via a config file and command line flags #169
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Support yaml/json based config file for nfd. This commit does not add any actual consumers for the config file, yet. By default, nfd tries to read /etc/kubernetes/node-feature-discovery/node-feature-discovery.conf. This can be changed by specifying the --config command line flag.
Implement new '--options' command line flag that can be used to specify config options from command line. Options specified via this command line flag will override those read from the config file. The same format as in the config file must be used, that is, the flag value must be valid YAML or JSON.
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Pushed a new version, based on the comments in #146. Improving documentation (e.g. adding an example how to use ConfigMap), plus some code refactoring and |
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@przemek-lal any comments on this? |
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Looks OK to me 👍 |
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/lgtm |
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Version 0.4.0 Node-feature-discovery was migrated into a new repository under the kubernetes-sigs organization in Github (kubernetes-sigs#175). Related to the migration, the final container image registry/repo hasn't been dediced yet (kubernetes-sigs#177) – for this release we still use the old repo. Major changes - Split NFD into client and server (kubernetes-sigs#209) - Changes in labels: - NFD label namespace was changed to 'feature.node.kubernetes.io/' (kubernetes-sigs#176) - 'nfd-' prefix was dropped from all feature labels - NFD version label (feature.node.kubernetes.io/node-feature-discovery.version) was replaced by an annotation (nfd.node.kubernetes.io/version) - network SRIOV labels were changed (kubernetes-sigs#173): - 'network-sriov' -> 'network-sriov.capable' - 'network-sriov-configured' -> 'network-sriov.configured' - selinux detection was moved to kernel feature source - 'selinux' -> 'kernel-selinux.enabled' - cpuid, pstate and RDT labels moved under cpu feature source (kubernetes-sigs#217) - 'cpuid-<cpuid flag>' -> 'cpu-cpuid.<cpuid flag>' - 'pstate-turbo' -> 'cpu-pstate.turbo' - 'rdt-<rdt feature>' -> 'cpu-rdt.<rdt feature>' - Support for config file (kubernetes-sigs#169). Currently with three configurable feature sources i.e. cpu (kubernetes-sigs#224), kernel (kubernetes-sigs#157) and pci (kubernetes-sigs#168) - Support for non-binary labels, with arbitrary values other than plain 'true' - PCI device detection (kubernetes-sigs#168) - Kernel version detection (kubernetes-sigs#157) - Kernel config option detection (kubernetes-sigs#146) - Support for custom feature-detector hooks (kubernetes-sigs#144) - Support OS version detection (kubernetes-sigs#149, kubernetes-sigs#211) - Detection of hardware multithreading, such as Intel Hyper-Threading Technology (kubernetes-sigs#147) - Arm64 support for CPUID detection (kubernetes-sigs#194) - Validation of feature label names and values (kubernetes-sigs#199, kubernetes-sigs#219) - Detection of NVDIMM devices (kubernetes-sigs#214) - Get labels by reading from file in 'local' source (kubernetes-sigs#228) - Detection of Intel SST-BF (Speed Select Technology - Base Frequency) (kubernetes-sigs#235) - Make it possible to create feature labels in non-default namespace (kubernetes-sigs#231). Currently possible for using the local source (hooks and files). Miscellaneous - Template specs converted from json to yaml - Documentation updates and fixes
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Adds support for config options that can be specified via a config file and/or the --options command line flag. This PR does not actually use (i.e. add any options) the new feature yet, but only adds the mechanism for adding config options. However, the mechanism is being used in #146 and #168, and, this PR was created to more easily review the new configurability feature separately.