[release-0.12] nfd-master: fix a crash when processing NodeFeatureRules #1176
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Fix a a bug where nfd-master with NodeFeature API enabled would crash when NodeFeatureRule objects were processed in the case where no NodeFeature objects existed. This was caused by trying to insert values into a non-initialized NodeFeatureSpec in the code. This patch adds two safety measures to prevent that from happening in the future. First, add a constructor function for the NodeFeatureSpec type, and second, check for uninitialized object in the function inserting new functions. TODO: add unit tests for the API helper functions.
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: k8s-infra-cherrypick-robot, marquiz The full list of commands accepted by this bot can be found here. The pull request process is described here
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LGTM label has been added. Git tree hash: 653d2e0712a6b1cf1cc31d5bdfe067d986f9be80
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This is an automated cherry-pick of #1173
/assign marquiz