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Add notification filtering by target media type

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The Hub registry generates a large volume of notifications, many of
which are uninteresting based on target media type.  Discarding them
within the notification endpoint consumes considerable resources that
could be saved by discarding them within the registry.  To that end,
this change adds registry configuration options to restrict the
notifications sent to an endpoint based on target media type.

Signed-off-by: Noah Treuhaft <noah.treuhaft@docker.com>
This commit is contained in:
Noah Treuhaft 2016-09-12 15:07:49 -07:00
parent cb744efe8b
commit ad6bb66faf
7 changed files with 112 additions and 16 deletions
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12
notifications/endpoint.go
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@ -8,11 +8,12 @@ import (
// EndpointConfig covers the optional configuration parameters for an active
// endpoint.
type EndpointConfig struct {
Headers http.Header
Timeout time.Duration
Threshold int
Backoff time.Duration
Transport *http.Transport
Headers http.Header
Timeout time.Duration
Threshold int
Backoff time.Duration
IgnoredMediaTypes []string
Transport *http.Transport
}
// defaults set any zero-valued fields to a reasonable default.
@ -62,6 +63,7 @@ func NewEndpoint(name, url string, config EndpointConfig) *Endpoint {
endpoint.Transport, endpoint.metrics.httpStatusListener())
endpoint.Sink = newRetryingSink(endpoint.Sink, endpoint.Threshold, endpoint.Backoff)
endpoint.Sink = newEventQueue(endpoint.Sink, endpoint.metrics.eventQueueListener())
endpoint.Sink = newIgnoredMediaTypesSink(endpoint.Sink, config.IgnoredMediaTypes)
register(&endpoint)
return &endpoint