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2020-12-01plugin/kubernetes: Fix dns programming duration metric (#4255)Gravatar Chris O'Haver 1-27/+19
* get data reqd to record latency before calling toFuncs * refactor out unnecessary toFunc wrappers * remove latency metric unit tests per PR feedback Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
2020-05-15plugin/kubernetes: handle tombstones in default processor (#3890)Gravatar Chris O'Haver 1-13/+19
* handle deletion tombstones in default processor Signed-off-by: Chris O'Haver <cohaver@infoblox.com> * fix terminating pod exclusion Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
2019-10-04Measure and expose DNS programming latency from Kubernetes plugin. (#3171)Gravatar janluk 1-3/+11
For now metric is measure only for headless services. Informer has been slighlty refactored, so the code can measure latency without storing extra fields on Endpoint struct. Signed-off-by: Janek Ɓukaszewicz <janluk@google.com> Suggestions from code review Co-Authored-By: Chris O'Haver <cohaver@infoblox.com>
2019-06-01plugin/kubernetes: skip deleting pods (#2853)Gravatar Miek Gieben 1-4/+4
Don't add pods to our internal cache that are being deleted. This saves a field in the struct as well. Add (extra) comments about adding fields to the object/{Pod,Service,Endpoint} structs. Signed-off-by: Miek Gieben <miek@miek.nl>
2018-10-09plugin/kubernetes: allow trimming down of cached items. (#2128)Gravatar Miek Gieben 1-0/+72
* Convert to runtime.Object to smaller structs This adds conversion for all the objects we want to keep in the cache. It keeps the minimum for CoreDNS to function and throws away the rest. The conversion: api.Endpoints -> object.Endpoints api.Pod -> object.Pod api.Serivce -> object.Service We needed to copy some client-go stuff to insert a conversion function into NewIndexInformers. Some unrelated cleanups in the watch functionality as that needed to be touched because of the above translation of objects. Signed-off-by: Miek Gieben <miek@miek.nl> * Reduce test line-count Signed-off-by: Miek Gieben <miek@miek.nl> * ....and fix test Signed-off-by: Miek Gieben <miek@miek.nl> * Drop use of append Signed-off-by: Miek Gieben <miek@miek.nl> * cosmetic changes Signed-off-by: Miek Gieben <miek@miek.nl> * that was a typo Signed-off-by: Miek Gieben <miek@miek.nl> * re-introduce append here We can't really use len() here because we don't know the number before hand. Signed-off-by: Miek Gieben <miek@miek.nl> * comment in better place Signed-off-by: Miek Gieben <miek@miek.nl> * Make the timestamp a bool; thats where it is used for Signed-off-by: Miek Gieben <miek@miek.nl> * Set incoming object to nil Explicataliy discard the converted object; we did a deep copy it's not needed anymore. Signed-off-by: Miek Gieben <miek@miek.nl> * Per Chris's comment Signed-off-by: Miek Gieben <miek@miek.nl>