Merge pull request #986 from prometheus/fabxc/tpdoc

Clarify docs of TargetProvider
This commit is contained in:
Fabian Reinartz 2015-08-14 12:07:15 +02:00
commit 15b4115a25
1 changed files with 4 additions and 1 deletions

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@ -33,7 +33,10 @@ import (
//
// The TargetProvider does not have to guarantee that an actual change happened.
// It does guarantee that it sends the new TargetGroup whenever a change happens.
// On startup it sends all TargetGroups it can see.
//
// Sources() is guaranteed to be called exactly once before each call to Run().
// On a call to Run() implementing types must send a valid target group for each of
// the sources they declared in the last call to Sources().
type TargetProvider interface {
// Sources returns the source identifiers the provider is currently aware of.
Sources() []string