The admission/v3 protocol now supports arbitrary key/value headers to be
included in each packet of metrics. This commit creates support for
this, so the lua config file can declare a filter taking into account
the key/value headers.
Change-Id: I41de8c018d33304ccf46ec221ae689d55c5fb1ee
* cmd/statreceiver: lua-scriptable stat receiver
Change-Id: I3ce0fe3f1ef4b1f4f27eed90bac0e91cfecf22d7
* some updates
Change-Id: I7c3485adcda1278fce01ae077b4761b3ddb9fb7a
* more comments
Change-Id: I0bb22993cd934c3d40fc1da80d07e49e686b80dd
* linter fixes
Change-Id: Ied014304ecb9aadcf00a6b66ad28f856a428d150
* catch errors
Change-Id: I6e1920f1fd941e66199b30bc427285c19769fc70
* review feedback
Change-Id: I9d4051851eab18970c5f5ddcf4ff265508e541d3
* errorgroup improvements
Change-Id: I4699dda3022f0485fbb50c9dafe692d3921734ff
* too tricky
the previous thing was better for memory with lots of errors at a time
but https://play.golang.org/p/RweTMRjoSCt is too much of a foot gun
Change-Id: I23f0b3d77dd4288fcc20b3756a7110359576bf44