feat(events): add events extension (#3045)

* feat: add events config

Signed-off-by: Piaras Hoban <phoban01@gmail.com>

* feat: implement event support with log sink

Signed-off-by: Piaras Hoban <phoban01@gmail.com>

* feat: integrate events and update tests

Signed-off-by: Piaras Hoban <phoban01@gmail.com>

* refactor: update event config

Signed-off-by: Piaras Hoban <phoban01@gmail.com>

* feat: implement http and nats sinks. remove log sink

Signed-off-by: Piaras Hoban <phoban01@gmail.com>

* refactor: events extension setup

Signed-off-by: Piaras Hoban <phoban01@gmail.com>

* chore: cleanup tests to use nil event recorder

Signed-off-by: Piaras Hoban <phoban01@gmail.com>

* chore: update events config example and add more logging

Signed-off-by: Piaras Hoban <phoban01@gmail.com>

* refactor: better use of build tags for minimal binary

Signed-off-by: Piaras Hoban <phoban01@gmail.com>

* fix: missing store param in evelated privileges tests

Signed-off-by: Piaras Hoban <phoban01@gmail.com>

* fix: regression in config decoding

Signed-off-by: Piaras Hoban <phoban01@gmail.com>

* chore: update check logs script to enable cross-platform usage via GREP_BIN_PATH envvar

Signed-off-by: Piaras Hoban <phoban01@gmail.com>

* chore: fix log lint issue for events

Signed-off-by: Piaras Hoban <phoban01@gmail.com>

* chore: fix failing events disabled test

Signed-off-by: Piaras Hoban <phoban01@gmail.com>

* test: add blackbox tests for events

Signed-off-by: Piaras Hoban <phoban01@gmail.com>

* chore: specify architecture when downloading binaries in Makefile

Signed-off-by: Piaras Hoban <phoban01@gmail.com>

* chore: improve failure handling when no valid sinks are provided

Signed-off-by: Piaras Hoban <phoban01@gmail.com>

* test: fix data race in events test

Signed-off-by: Piaras Hoban <phoban01@gmail.com>

* chore: cleanup event decoding

Signed-off-by: Piaras Hoban <phoban01@gmail.com>

* test: fix logging tests

Signed-off-by: Piaras Hoban <phoban01@gmail.com>

* test: make nats server test more reliable

Signed-off-by: Piaras Hoban <phoban01@gmail.com>

* chore: go mod cleanup

Signed-off-by: Piaras Hoban <phoban01@gmail.com>

* test: add sleep when setting up nats client

Signed-off-by: Piaras Hoban <phoban01@gmail.com>

* fix: ensure event sink errors do not propogate

Signed-off-by: Piaras Hoban <phoban01@gmail.com>

* test: increase coverage for events

Signed-off-by: Piaras Hoban <phoban01@gmail.com>

* feat(events): Refactor events to be non-blocking from caller.

Signed-off-by: Asgeir Nilsen <asgeir.nilsen@bouvet.no>
Signed-off-by: Piaras Hoban <phoban01@gmail.com>

* chore: remove harded-coded linux

Co-authored-by: Andrei Aaron <andreifdaaron@gmail.com>
Signed-off-by: Piaras Hoban <phoban01@gmail.com>

* feat(events): fail to start if incorrect event sink is configured

Signed-off-by: Piaras Hoban <phoban01@gmail.com>

* test: allow cli tests to return errors instead of panic

Signed-off-by: Piaras Hoban <phoban01@gmail.com>

* chore: bump nats server to v2.11.3

Signed-off-by: Piaras Hoban <phoban01@gmail.com>

---------

Signed-off-by: Piaras Hoban <phoban01@gmail.com>
Signed-off-by: Asgeir Nilsen <asgeir.nilsen@bouvet.no>
Co-authored-by: Asgeir Nilsen <asgeir.nilsen@bouvet.no>
Co-authored-by: Andrei Aaron <andreifdaaron@gmail.com>

pkg/cli/server/root.go

@@ -27,6 +27,7 @@ import (
 	"zotregistry.dev/zot/pkg/api/constants"
 	"zotregistry.dev/zot/pkg/common"
 	extconf "zotregistry.dev/zot/pkg/extensions/config"
+	eventsconf "zotregistry.dev/zot/pkg/extensions/config/events"
 	"zotregistry.dev/zot/pkg/extensions/monitoring"
 	zlog "zotregistry.dev/zot/pkg/log"
 	storageConstants "zotregistry.dev/zot/pkg/storage/constants"
@@ -820,8 +821,19 @@ func LoadConfiguration(config *config.Config, configPath string) error {
 	}
 
 	metaData := &mapstructure.Metadata{}
-	if err := viperInstance.UnmarshalExact(&config, metadataConfig(metaData)); err != nil {
-		log.Error().Err(err).Msg("failed to unmarshaling new config")
+
+	decoderOpts := []viper.DecoderConfigOption{
+		metadataConfig(metaData),
+		viper.DecodeHook(
+			mapstructure.ComposeDecodeHookFunc(
+				mapstructure.StringToTimeDurationHookFunc(),
+				eventsconf.SinkConfigDecoderHook(),
+			),
+		),
+	}
+
+	if err := viperInstance.UnmarshalExact(&config, decoderOpts...); err != nil {
+		log.Error().Err(err).Msg("failed to unmarshal new config")
 
 		return err
 	}