[receiver/kubeletstats] Add k8s node filesystem inode metrics - #49932
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Description
This PR adds support for exposing system process rlimit metrics and node filesystem inode metrics in
kubeletstatsreceiver:k8s.node.filesystem.inode.count: Total number of inodes in the node's root filesystem. Sem conv PR:Add new k8s.node.filesystem semantic conventions semantic-conventions#3890 (comment)k8s.node.filesystem.inode.free: Number of free inodes in the node's root filesystem. Sem conv PR: Add new k8s.node.filesystem semantic conventions semantic-conventions#3890 (comment)All metrics are set to
developmentstability and are disabled by default.Link to tracking issue
Fixes #48926
Testing
TestScraperWithNodeFilesystemInodeMetricsinscraper_test.go.testdata/scraper/.go test ./....Documentation
receiver/kubeletstatsreceiver/documentation.md..chloggen/add-kubeletstats-rlimit-inode-metrics.yaml.Authorship