2016-08-05 07:01:58 +02:00
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/*
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* Minio Cloud Storage, (C) 2016 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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2016-08-19 01:23:42 +02:00
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package cmd
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2016-08-05 07:01:58 +02:00
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import (
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"bytes"
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"encoding/json"
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"encoding/xml"
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"fmt"
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2016-08-25 08:04:34 +02:00
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"net"
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2016-08-05 07:01:58 +02:00
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"net/url"
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"path"
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"sync"
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"time"
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"github.com/Sirupsen/logrus"
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)
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2016-10-12 10:03:50 +02:00
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type externalNotifier struct {
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// Per-bucket notification config. This is updated via
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// PutBucketNotification API.
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notificationConfigs map[string]*notificationConfig
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// An external target keeps a connection to an external
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// service to which events are to be sent. It is a mapping
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// from an ARN to a log object
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targets map[string]*logrus.Logger
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rwMutex *sync.RWMutex
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}
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type internalNotifier struct {
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// per-bucket listener configuration. This is updated
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// when listeners connect or disconnect.
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listenerConfigs map[string][]listenerConfig
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// An internal target is a peer Minio server, that is
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// connected to a listening client. Here, targets is a map of
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// listener ARN to log object.
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targets map[string]*listenerLogger
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// Connected listeners is a map of listener ARNs to channels
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// on which the ListenBucket API handler go routine is waiting
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// for events to send to a client.
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connectedListeners map[string]chan []NotificationEvent
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rwMutex *sync.RWMutex
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}
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// Global event notification configuration. This structure has state
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// about configured external notifications, and run-time configuration
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// for listener notifications.
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type eventNotifier struct {
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// `external` here refers to notification configuration to
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// send events to supported external systems
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external externalNotifier
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// `internal` refers to notification configuration for live
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// listening clients. Events for a client are send from all
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// servers, internally to a particular server that is
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// connected to the client.
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internal internalNotifier
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}
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// Represents data to be sent with notification event.
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type eventData struct {
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Type EventName
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Bucket string
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ObjInfo ObjectInfo
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ReqParams map[string]string
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}
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// New notification event constructs a new notification event message from
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// input request metadata which completed successfully.
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func newNotificationEvent(event eventData) NotificationEvent {
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/// Construct a new object created event.
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region := serverConfig.GetRegion()
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tnow := time.Now().UTC()
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sequencer := fmt.Sprintf("%X", tnow.UnixNano())
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// Following blocks fills in all the necessary details of s3
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// event message structure.
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// http://docs.aws.amazon.com/AmazonS3/latest/dev/notification-content-structure.html
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nEvent := NotificationEvent{
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EventVersion: "2.0",
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EventSource: "aws:s3",
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AwsRegion: region,
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EventTime: tnow.Format(timeFormatAMZ),
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EventName: event.Type.String(),
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UserIdentity: defaultIdentity(),
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RequestParameters: event.ReqParams,
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ResponseElements: map[string]string{},
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S3: eventMeta{
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SchemaVersion: "1.0",
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ConfigurationID: "Config",
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Bucket: bucketMeta{
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Name: event.Bucket,
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OwnerIdentity: defaultIdentity(),
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ARN: "arn:aws:s3:::" + event.Bucket,
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},
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},
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}
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escapedObj := url.QueryEscape(event.ObjInfo.Name)
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// For delete object event type, we do not need to set ETag and Size.
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if event.Type == ObjectRemovedDelete {
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nEvent.S3.Object = objectMeta{
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Key: escapedObj,
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Sequencer: sequencer,
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}
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return nEvent
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}
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// For all other events we should set ETag and Size.
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nEvent.S3.Object = objectMeta{
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Key: escapedObj,
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ETag: event.ObjInfo.MD5Sum,
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Size: event.ObjInfo.Size,
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Sequencer: sequencer,
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}
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// Success.
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return nEvent
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}
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// Fetch the external target. No locking needed here since this map is
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// never written after initial startup.
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func (en eventNotifier) GetExternalTarget(queueARN string) *logrus.Logger {
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return en.external.targets[queueARN]
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}
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func (en eventNotifier) GetInternalTarget(arn string) *listenerLogger {
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en.internal.rwMutex.RLock()
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defer en.internal.rwMutex.RUnlock()
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return en.internal.targets[arn]
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}
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2016-08-16 05:56:43 +02:00
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// Set a new sns target for an input sns ARN.
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func (en *eventNotifier) AddListenerChan(snsARN string, listenerCh chan []NotificationEvent) error {
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if listenerCh == nil {
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return errInvalidArgument
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}
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en.internal.rwMutex.Lock()
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defer en.internal.rwMutex.Unlock()
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en.internal.connectedListeners[snsARN] = listenerCh
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return nil
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}
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// Remove sns target for an input sns ARN.
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func (en *eventNotifier) RemoveListenerChan(snsARN string) {
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en.internal.rwMutex.Lock()
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defer en.internal.rwMutex.Unlock()
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if en.internal.connectedListeners != nil {
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delete(en.internal.connectedListeners, snsARN)
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}
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}
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func (en *eventNotifier) SendListenerEvent(arn string, event []NotificationEvent) error {
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en.internal.rwMutex.Lock()
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defer en.internal.rwMutex.Unlock()
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ch, ok := en.internal.connectedListeners[arn]
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if ok {
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ch <- event
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}
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// If the channel is not present we ignore the event.
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return nil
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}
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// Fetch bucket notification config for an input bucket.
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func (en eventNotifier) GetBucketNotificationConfig(bucket string) *notificationConfig {
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en.external.rwMutex.RLock()
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defer en.external.rwMutex.RUnlock()
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return en.external.notificationConfigs[bucket]
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}
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func (en *eventNotifier) SetBucketNotificationConfig(bucket string, ncfg *notificationConfig) {
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en.external.rwMutex.Lock()
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if ncfg == nil {
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delete(en.external.notificationConfigs, bucket)
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} else {
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en.external.notificationConfigs[bucket] = ncfg
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}
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en.external.rwMutex.Unlock()
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}
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func (en *eventNotifier) GetBucketListenerConfig(bucket string) []listenerConfig {
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en.internal.rwMutex.RLock()
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defer en.internal.rwMutex.RUnlock()
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return en.internal.listenerConfigs[bucket]
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}
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func (en *eventNotifier) SetBucketListenerConfig(bucket string, lcfg []listenerConfig) error {
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en.internal.rwMutex.Lock()
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defer en.internal.rwMutex.Unlock()
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if lcfg == nil {
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delete(en.internal.listenerConfigs, bucket)
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} else {
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en.internal.listenerConfigs[bucket] = lcfg
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}
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en.internal.targets = make(map[string]*listenerLogger)
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for _, lc := range lcfg {
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logger, err := newListenerLogger(lc.TopicConfig.TopicARN,
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lc.TargetServer)
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if err != nil {
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return err
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2016-09-29 07:46:19 +02:00
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}
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en.internal.targets[lc.TopicConfig.TopicARN] = logger
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}
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return nil
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}
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func eventNotifyForBucketNotifications(eventType, objectName, bucketName string,
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nEvent []NotificationEvent) {
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nConfig := globalEventNotifier.GetBucketNotificationConfig(bucketName)
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if nConfig == nil {
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return
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}
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// Validate if the event and object match the queue configs.
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for _, qConfig := range nConfig.QueueConfigs {
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eventMatch := eventMatch(eventType, qConfig.Events)
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ruleMatch := filterRuleMatch(objectName, qConfig.Filter.Key.FilterRules)
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if eventMatch && ruleMatch {
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targetLog := globalEventNotifier.GetExternalTarget(qConfig.QueueARN)
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if targetLog != nil {
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targetLog.WithFields(logrus.Fields{
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"Key": path.Join(bucketName, objectName),
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"EventType": eventType,
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"Records": nEvent,
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}).Info()
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}
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}
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}
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2016-10-12 10:03:50 +02:00
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}
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func eventNotifyForBucketListeners(eventType, objectName, bucketName string,
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nEvent []NotificationEvent) {
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lCfgs := globalEventNotifier.GetBucketListenerConfig(bucketName)
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if lCfgs == nil {
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return
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}
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// Validate if the event and object match listener configs
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for _, lcfg := range lCfgs {
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ruleMatch := filterRuleMatch(objectName, lcfg.TopicConfig.Filter.Key.FilterRules)
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eventMatch := eventMatch(eventType, lcfg.TopicConfig.Events)
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if eventMatch && ruleMatch {
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targetLog := globalEventNotifier.GetInternalTarget(
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lcfg.TopicConfig.TopicARN)
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if targetLog != nil && targetLog.log != nil {
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targetLog.log.WithFields(logrus.Fields{
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"Key": path.Join(bucketName, objectName),
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"EventType": eventType,
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"Records": nEvent,
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}).Info()
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}
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}
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}
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}
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// eventNotify notifies an event to relevant targets based on their
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// bucket configuration (notifications and listeners).
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func eventNotify(event eventData) {
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// Notifies a new event.
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// List of events reported through this function are
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// - s3:ObjectCreated:Put
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// - s3:ObjectCreated:Post
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// - s3:ObjectCreated:Copy
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// - s3:ObjectCreated:CompleteMultipartUpload
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// - s3:ObjectRemoved:Delete
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// Event type.
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eventType := event.Type.String()
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// Object name.
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objectName := event.ObjInfo.Name
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// Save the notification event to be sent.
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notificationEvent := []NotificationEvent{newNotificationEvent(event)}
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// Notify external targets.
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eventNotifyForBucketNotifications(eventType, objectName, event.Bucket,
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notificationEvent)
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// Notify internal targets.
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eventNotifyForBucketListeners(eventType, objectName, event.Bucket,
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notificationEvent)
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}
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// loads notification config if any for a given bucket, returns
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// structured notification config.
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func loadNotificationConfig(bucket string, objAPI ObjectLayer) (*notificationConfig, error) {
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// Construct the notification config path.
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notificationConfigPath := path.Join(bucketConfigPrefix, bucket, bucketNotificationConfig)
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objInfo, err := objAPI.GetObjectInfo(minioMetaBucket, notificationConfigPath)
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err = errorCause(err)
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if err != nil {
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// 'notification.xml' not found return
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// 'errNoSuchNotifications'. This is default when no
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// bucket notifications are found on the bucket.
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switch err.(type) {
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case ObjectNotFound:
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return nil, errNoSuchNotifications
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}
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errorIf(err, "Unable to load bucket-notification for bucket %s", bucket)
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// Returns error for other errors.
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return nil, err
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}
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var buffer bytes.Buffer
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err = objAPI.GetObject(minioMetaBucket, notificationConfigPath, 0, objInfo.Size, &buffer)
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err = errorCause(err)
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if err != nil {
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// 'notification.xml' not found return
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// 'errNoSuchNotifications'. This is default when no
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// bucket notifications are found on the bucket.
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switch err.(type) {
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case ObjectNotFound:
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return nil, errNoSuchNotifications
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}
|
2016-09-06 22:30:05 +02:00
|
|
|
errorIf(err, "Unable to load bucket-notification for bucket %s", bucket)
|
2016-08-05 07:01:58 +02:00
|
|
|
// Returns error for other errors.
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
|
|
|
|
// Unmarshal notification bytes.
|
|
|
|
notificationConfigBytes := buffer.Bytes()
|
|
|
|
notificationCfg := ¬ificationConfig{}
|
|
|
|
if err = xml.Unmarshal(notificationConfigBytes, ¬ificationCfg); err != nil {
|
|
|
|
return nil, err
|
2016-10-12 10:03:50 +02:00
|
|
|
}
|
2016-08-05 07:01:58 +02:00
|
|
|
|
|
|
|
// Return success.
|
|
|
|
return notificationCfg, nil
|
|
|
|
}
|
|
|
|
|
2016-10-12 10:03:50 +02:00
|
|
|
// loads notification config if any for a given bucket, returns
|
|
|
|
// structured notification config.
|
|
|
|
func loadListenerConfig(bucket string, objAPI ObjectLayer) ([]listenerConfig, error) {
|
|
|
|
// Construct the notification config path.
|
|
|
|
listenerConfigPath := path.Join(bucketConfigPrefix, bucket, bucketListenerConfig)
|
|
|
|
objInfo, err := objAPI.GetObjectInfo(minioMetaBucket, listenerConfigPath)
|
|
|
|
err = errorCause(err)
|
|
|
|
if err != nil {
|
|
|
|
// 'listener.json' not found return
|
|
|
|
// 'errNoSuchNotifications'. This is default when no
|
|
|
|
// bucket notifications are found on the bucket.
|
|
|
|
switch err.(type) {
|
|
|
|
case ObjectNotFound:
|
|
|
|
return nil, errNoSuchNotifications
|
|
|
|
}
|
|
|
|
errorIf(err, "Unable to load bucket-listeners for bucket %s", bucket)
|
|
|
|
// Returns error for other errors.
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
var buffer bytes.Buffer
|
|
|
|
err = objAPI.GetObject(minioMetaBucket, listenerConfigPath, 0, objInfo.Size, &buffer)
|
|
|
|
err = errorCause(err)
|
|
|
|
if err != nil {
|
|
|
|
// 'notification.xml' not found return
|
|
|
|
// 'errNoSuchNotifications'. This is default when no
|
|
|
|
// bucket listners are found on the bucket.
|
|
|
|
switch err.(type) {
|
|
|
|
case ObjectNotFound:
|
|
|
|
return nil, errNoSuchNotifications
|
|
|
|
}
|
|
|
|
errorIf(err, "Unable to load bucket-listeners for bucket %s", bucket)
|
|
|
|
// Returns error for other errors.
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
|
|
|
|
// Unmarshal notification bytes.
|
|
|
|
var lCfg []listenerConfig
|
|
|
|
lConfigBytes := buffer.Bytes()
|
|
|
|
if err = json.Unmarshal(lConfigBytes, &lCfg); err != nil {
|
|
|
|
errorIf(err, "Unable to unmarshal listener config from JSON.")
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
|
|
|
|
// Return success.
|
|
|
|
return lCfg, nil
|
|
|
|
}
|
|
|
|
|
|
|
|
func persistNotificationConfig(bucket string, ncfg *notificationConfig, obj ObjectLayer) error {
|
|
|
|
// marshal to xml
|
|
|
|
buf, err := xml.Marshal(ncfg)
|
|
|
|
if err != nil {
|
|
|
|
errorIf(err, "Unable to marshal notification configuration into XML")
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
|
|
|
|
// verify bucket exists
|
|
|
|
// FIXME: There is a race between this check and PutObject
|
|
|
|
if err = isBucketExist(bucket, obj); err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
|
|
|
|
// build path
|
|
|
|
ncPath := path.Join(bucketConfigPrefix, bucket, bucketNotificationConfig)
|
|
|
|
// write object to path
|
|
|
|
_, err = obj.PutObject(minioMetaBucket, ncPath, int64(len(buf)),
|
|
|
|
bytes.NewReader(buf), nil, "")
|
|
|
|
if err != nil {
|
|
|
|
errorIf(err, "Unable to write bucket notification configuration.")
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
|
|
|
// Persists validated listener config to object layer.
|
|
|
|
func persistListenerConfig(bucket string, lcfg []listenerConfig, obj ObjectLayer) error {
|
|
|
|
buf, err := json.Marshal(lcfg)
|
|
|
|
if err != nil {
|
|
|
|
errorIf(err, "Unable to marshal listener config to JSON.")
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
|
|
|
|
// verify bucket exists
|
|
|
|
// FIXME: There is a race between this check and PutObject
|
|
|
|
if err = isBucketExist(bucket, obj); err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
|
|
|
|
// build path
|
|
|
|
lcPath := path.Join(bucketConfigPrefix, bucket, bucketListenerConfig)
|
|
|
|
// write object to path
|
|
|
|
_, err = obj.PutObject(minioMetaBucket, lcPath, int64(len(buf)),
|
|
|
|
bytes.NewReader(buf), nil, "")
|
|
|
|
if err != nil {
|
|
|
|
errorIf(err, "Unable to write bucket listener configuration to object layer.")
|
|
|
|
}
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
|
2016-08-05 07:01:58 +02:00
|
|
|
// loads all bucket notifications if present.
|
2016-10-12 10:03:50 +02:00
|
|
|
func loadAllBucketNotifications(objAPI ObjectLayer) (map[string]*notificationConfig, map[string][]listenerConfig, error) {
|
2016-08-05 07:01:58 +02:00
|
|
|
// List buckets to proceed loading all notification configuration.
|
|
|
|
buckets, err := objAPI.ListBuckets()
|
|
|
|
if err != nil {
|
2016-10-12 10:03:50 +02:00
|
|
|
return nil, nil, err
|
2016-08-05 07:01:58 +02:00
|
|
|
}
|
|
|
|
|
2016-10-12 10:03:50 +02:00
|
|
|
nConfigs := make(map[string]*notificationConfig)
|
|
|
|
lConfigs := make(map[string][]listenerConfig)
|
2016-08-05 07:01:58 +02:00
|
|
|
|
|
|
|
// Loads all bucket notifications.
|
|
|
|
for _, bucket := range buckets {
|
2016-09-06 22:30:05 +02:00
|
|
|
nCfg, nErr := loadNotificationConfig(bucket.Name, objAPI)
|
|
|
|
if nErr != nil {
|
2016-10-12 10:03:50 +02:00
|
|
|
if nErr != errNoSuchNotifications {
|
|
|
|
return nil, nil, nErr
|
2016-08-05 07:01:58 +02:00
|
|
|
}
|
2016-10-12 10:03:50 +02:00
|
|
|
} else {
|
|
|
|
nConfigs[bucket.Name] = nCfg
|
|
|
|
}
|
|
|
|
|
|
|
|
lCfg, lErr := loadListenerConfig(bucket.Name, objAPI)
|
|
|
|
if lErr != nil {
|
|
|
|
if lErr != errNoSuchNotifications {
|
|
|
|
return nil, nil, lErr
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
lConfigs[bucket.Name] = lCfg
|
2016-08-05 07:01:58 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// Success.
|
2016-10-12 10:03:50 +02:00
|
|
|
return nConfigs, lConfigs, nil
|
2016-08-05 07:01:58 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
// Loads all queue targets, initializes each queueARNs depending on their config.
|
|
|
|
// Each instance of queueARN registers its own logrus to communicate with the
|
|
|
|
// queue service. QueueARN once initialized is not initialized again for the
|
|
|
|
// same queueARN, instead previous connection is used.
|
|
|
|
func loadAllQueueTargets() (map[string]*logrus.Logger, error) {
|
|
|
|
queueTargets := make(map[string]*logrus.Logger)
|
|
|
|
// Load all amqp targets, initialize their respective loggers.
|
|
|
|
for accountID, amqpN := range serverConfig.GetAMQP() {
|
|
|
|
if !amqpN.Enable {
|
|
|
|
continue
|
|
|
|
}
|
|
|
|
// Construct the queue ARN for AMQP.
|
|
|
|
queueARN := minioSqs + serverConfig.GetRegion() + ":" + accountID + ":" + queueTypeAMQP
|
|
|
|
// Queue target if already initialized we move to the next ARN.
|
|
|
|
_, ok := queueTargets[queueARN]
|
|
|
|
if ok {
|
|
|
|
continue
|
|
|
|
}
|
|
|
|
// Using accountID we can now initialize a new AMQP logrus instance.
|
|
|
|
amqpLog, err := newAMQPNotify(accountID)
|
|
|
|
if err != nil {
|
2016-08-25 08:04:34 +02:00
|
|
|
// Encapsulate network error to be more informative.
|
|
|
|
if _, ok := err.(net.Error); ok {
|
|
|
|
return nil, &net.OpError{
|
|
|
|
Op: "Connecting to " + queueARN,
|
|
|
|
Net: "tcp",
|
|
|
|
Err: err,
|
|
|
|
}
|
|
|
|
}
|
2016-08-05 07:01:58 +02:00
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
queueTargets[queueARN] = amqpLog
|
|
|
|
}
|
2016-09-30 08:42:10 +02:00
|
|
|
// Load all nats targets, initialize their respective loggers.
|
|
|
|
for accountID, natsN := range serverConfig.GetNATS() {
|
|
|
|
if !natsN.Enable {
|
|
|
|
continue
|
|
|
|
}
|
|
|
|
// Construct the queue ARN for NATS.
|
|
|
|
queueARN := minioSqs + serverConfig.GetRegion() + ":" + accountID + ":" + queueTypeNATS
|
|
|
|
// Queue target if already initialized we move to the next ARN.
|
|
|
|
_, ok := queueTargets[queueARN]
|
|
|
|
if ok {
|
|
|
|
continue
|
|
|
|
}
|
|
|
|
// Using accountID we can now initialize a new NATS logrus instance.
|
|
|
|
natsLog, err := newNATSNotify(accountID)
|
|
|
|
if err != nil {
|
|
|
|
// Encapsulate network error to be more informative.
|
|
|
|
if _, ok := err.(net.Error); ok {
|
|
|
|
return nil, &net.OpError{
|
|
|
|
Op: "Connecting to " + queueARN,
|
|
|
|
Net: "tcp",
|
|
|
|
Err: err,
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
queueTargets[queueARN] = natsLog
|
|
|
|
}
|
|
|
|
|
2016-08-05 07:01:58 +02:00
|
|
|
// Load redis targets, initialize their respective loggers.
|
|
|
|
for accountID, redisN := range serverConfig.GetRedis() {
|
|
|
|
if !redisN.Enable {
|
|
|
|
continue
|
|
|
|
}
|
|
|
|
// Construct the queue ARN for Redis.
|
|
|
|
queueARN := minioSqs + serverConfig.GetRegion() + ":" + accountID + ":" + queueTypeRedis
|
|
|
|
// Queue target if already initialized we move to the next ARN.
|
|
|
|
_, ok := queueTargets[queueARN]
|
|
|
|
if ok {
|
|
|
|
continue
|
|
|
|
}
|
|
|
|
// Using accountID we can now initialize a new Redis logrus instance.
|
|
|
|
redisLog, err := newRedisNotify(accountID)
|
|
|
|
if err != nil {
|
2016-08-25 08:04:34 +02:00
|
|
|
// Encapsulate network error to be more informative.
|
|
|
|
if _, ok := err.(net.Error); ok {
|
|
|
|
return nil, &net.OpError{
|
|
|
|
Op: "Connecting to " + queueARN,
|
|
|
|
Net: "tcp",
|
|
|
|
Err: err,
|
|
|
|
}
|
|
|
|
}
|
2016-08-05 07:01:58 +02:00
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
queueTargets[queueARN] = redisLog
|
|
|
|
}
|
|
|
|
// Load elastic targets, initialize their respective loggers.
|
|
|
|
for accountID, elasticN := range serverConfig.GetElasticSearch() {
|
|
|
|
if !elasticN.Enable {
|
|
|
|
continue
|
|
|
|
}
|
|
|
|
// Construct the queue ARN for Elastic.
|
|
|
|
queueARN := minioSqs + serverConfig.GetRegion() + ":" + accountID + ":" + queueTypeElastic
|
|
|
|
_, ok := queueTargets[queueARN]
|
|
|
|
if ok {
|
|
|
|
continue
|
|
|
|
}
|
|
|
|
// Using accountID we can now initialize a new ElasticSearch logrus instance.
|
|
|
|
elasticLog, err := newElasticNotify(accountID)
|
|
|
|
if err != nil {
|
2016-08-25 08:04:34 +02:00
|
|
|
// Encapsulate network error to be more informative.
|
|
|
|
if _, ok := err.(net.Error); ok {
|
|
|
|
return nil, &net.OpError{
|
|
|
|
Op: "Connecting to " + queueARN, Net: "tcp",
|
|
|
|
Err: err,
|
|
|
|
}
|
|
|
|
}
|
2016-08-05 07:01:58 +02:00
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
queueTargets[queueARN] = elasticLog
|
|
|
|
}
|
2016-10-04 02:29:55 +02:00
|
|
|
// Load PostgreSQL targets, initialize their respective loggers.
|
|
|
|
for accountID, pgN := range serverConfig.GetPostgreSQL() {
|
|
|
|
if !pgN.Enable {
|
|
|
|
continue
|
|
|
|
}
|
|
|
|
// Construct the queue ARN for Postgres.
|
|
|
|
queueARN := minioSqs + serverConfig.GetRegion() + ":" + accountID + ":" + queueTypePostgreSQL
|
|
|
|
_, ok := queueTargets[queueARN]
|
|
|
|
if ok {
|
|
|
|
continue
|
|
|
|
}
|
|
|
|
// Using accountID initialize a new Postgresql logrus instance.
|
|
|
|
pgLog, err := newPostgreSQLNotify(accountID)
|
|
|
|
if err != nil {
|
|
|
|
// Encapsulate network error to be more informative.
|
|
|
|
if _, ok := err.(net.Error); ok {
|
|
|
|
return nil, &net.OpError{
|
|
|
|
Op: "Connecting to " + queueARN, Net: "tcp",
|
|
|
|
Err: err,
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
queueTargets[queueARN] = pgLog
|
|
|
|
}
|
|
|
|
|
2016-08-05 07:01:58 +02:00
|
|
|
// Successfully initialized queue targets.
|
|
|
|
return queueTargets, nil
|
|
|
|
}
|
|
|
|
|
|
|
|
// Global instance of event notification queue.
|
2016-09-10 11:23:28 +02:00
|
|
|
var globalEventNotifier *eventNotifier
|
2016-08-05 07:01:58 +02:00
|
|
|
|
|
|
|
// Initialize event notifier.
|
|
|
|
func initEventNotifier(objAPI ObjectLayer) error {
|
|
|
|
if objAPI == nil {
|
|
|
|
return errInvalidArgument
|
|
|
|
}
|
|
|
|
|
|
|
|
// Read all saved bucket notifications.
|
2016-10-12 10:03:50 +02:00
|
|
|
nConfigs, lConfigs, err := loadAllBucketNotifications(objAPI)
|
2016-08-05 07:01:58 +02:00
|
|
|
if err != nil {
|
2016-10-12 10:03:50 +02:00
|
|
|
errorIf(err, "Error loading bucket notifications - %v", err)
|
2016-08-05 07:01:58 +02:00
|
|
|
return err
|
|
|
|
}
|
|
|
|
|
|
|
|
// Initializes all queue targets.
|
|
|
|
queueTargets, err := loadAllQueueTargets()
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
|
2016-10-12 10:03:50 +02:00
|
|
|
// Initialize internal listener targets
|
|
|
|
listenTargets := make(map[string]*listenerLogger)
|
|
|
|
for _, listeners := range lConfigs {
|
|
|
|
for _, listener := range listeners {
|
|
|
|
ln, err := newListenerLogger(
|
|
|
|
listener.TopicConfig.TopicARN,
|
|
|
|
listener.TargetServer,
|
|
|
|
)
|
|
|
|
if err != nil {
|
|
|
|
errorIf(err, "Unable to initialize listener target logger.")
|
|
|
|
//TODO: improve error
|
|
|
|
return fmt.Errorf("Error initializing listner target logger - %v", err)
|
|
|
|
}
|
|
|
|
listenTargets[listener.TopicConfig.TopicARN] = ln
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// Initialize event notifier queue.
|
2016-09-10 11:23:28 +02:00
|
|
|
globalEventNotifier = &eventNotifier{
|
2016-10-12 10:03:50 +02:00
|
|
|
external: externalNotifier{
|
|
|
|
notificationConfigs: nConfigs,
|
|
|
|
targets: queueTargets,
|
|
|
|
rwMutex: &sync.RWMutex{},
|
|
|
|
},
|
|
|
|
internal: internalNotifier{
|
|
|
|
rwMutex: &sync.RWMutex{},
|
|
|
|
targets: listenTargets,
|
|
|
|
listenerConfigs: lConfigs,
|
|
|
|
connectedListeners: make(map[string]chan []NotificationEvent),
|
|
|
|
},
|
2016-08-05 07:01:58 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
return nil
|
|
|
|
}
|