zitadel/internal/notification/handlers/config_sms.go
Livio Spring 8537805ea5
feat(notification): use event worker pool (#8962)
# Which Problems Are Solved

The current handling of notification follows the same pattern as all
other projections:
Created events are handled sequentially (based on "position") by a
handler. During the process, a lot of information is aggregated (user,
texts, templates, ...).
This leads to back pressure on the projection since the handling of
events might take longer than the time before a new event (to be
handled) is created.

# How the Problems Are Solved

- The current user notification handler creates separate notification
events based on the user / session events.
- These events contain all the present and required information
including the userID.
- These notification events get processed by notification workers, which
gather the necessary information (recipient address, texts, templates)
to send out these notifications.
- If a notification fails, a retry event is created based on the current
notification request including the current state of the user (this
prevents race conditions, where a user is changed in the meantime and
the notification already gets the new state).
- The retry event will be handled after a backoff delay. This delay
increases with every attempt.
- If the configured amount of attempts is reached or the message expired
(based on config), a cancel event is created, letting the workers know,
the notification must no longer be handled.
- In case of successful send, a sent event is created for the
notification aggregate and the existing "sent" events for the user /
session object is stored.
- The following is added to the defaults.yaml to allow configuration of
the notification workers:
```yaml

Notifications:
  # The amount of workers processing the notification request events.
  # If set to 0, no notification request events will be handled. This can be useful when running in
  # multi binary / pod setup and allowing only certain executables to process the events.
  Workers: 1 # ZITADEL_NOTIFIACATIONS_WORKERS
  # The amount of events a single worker will process in a run.
  BulkLimit: 10 # ZITADEL_NOTIFIACATIONS_BULKLIMIT
  # Time interval between scheduled notifications for request events
  RequeueEvery: 2s # ZITADEL_NOTIFIACATIONS_REQUEUEEVERY
  # The amount of workers processing the notification retry events.
  # If set to 0, no notification retry events will be handled. This can be useful when running in
  # multi binary / pod setup and allowing only certain executables to process the events.
  RetryWorkers: 1 # ZITADEL_NOTIFIACATIONS_RETRYWORKERS
  # Time interval between scheduled notifications for retry events
  RetryRequeueEvery: 2s # ZITADEL_NOTIFIACATIONS_RETRYREQUEUEEVERY
  # Only instances are projected, for which at least a projection-relevant event exists within the timeframe
  # from HandleActiveInstances duration in the past until the projection's current time
  # If set to 0 (default), every instance is always considered active
  HandleActiveInstances: 0s # ZITADEL_NOTIFIACATIONS_HANDLEACTIVEINSTANCES
  # The maximum duration a transaction remains open
  # before it spots left folding additional events
  # and updates the table.
  TransactionDuration: 1m # ZITADEL_NOTIFIACATIONS_TRANSACTIONDURATION
  # Automatically cancel the notification after the amount of failed attempts
  MaxAttempts: 3 # ZITADEL_NOTIFIACATIONS_MAXATTEMPTS
  # Automatically cancel the notification if it cannot be handled within a specific time
  MaxTtl: 5m  # ZITADEL_NOTIFIACATIONS_MAXTTL
  # Failed attempts are retried after a confogired delay (with exponential backoff).
  # Set a minimum and maximum delay and a factor for the backoff
  MinRetryDelay: 1s  # ZITADEL_NOTIFIACATIONS_MINRETRYDELAY
  MaxRetryDelay: 20s # ZITADEL_NOTIFIACATIONS_MAXRETRYDELAY
  # Any factor below 1 will be set to 1
  RetryDelayFactor: 1.5 # ZITADEL_NOTIFIACATIONS_RETRYDELAYFACTOR
```


# Additional Changes

None

# Additional Context

- closes #8931
2024-11-27 15:01:17 +00:00

57 lines
1.6 KiB
Go

package handlers
import (
"context"
"net/http"
"github.com/zitadel/zitadel/internal/api/authz"
"github.com/zitadel/zitadel/internal/crypto"
"github.com/zitadel/zitadel/internal/notification/channels/sms"
"github.com/zitadel/zitadel/internal/notification/channels/twilio"
"github.com/zitadel/zitadel/internal/notification/channels/webhook"
"github.com/zitadel/zitadel/internal/zerrors"
)
// GetActiveSMSConfig reads the active iam sms provider config
func (n *NotificationQueries) GetActiveSMSConfig(ctx context.Context) (*sms.Config, error) {
config, err := n.SMSProviderConfigActive(ctx, authz.GetInstance(ctx).InstanceID())
if err != nil {
return nil, err
}
provider := &sms.Provider{
ID: config.ID,
Description: config.Description,
}
if config.TwilioConfig != nil {
if config.TwilioConfig.Token == nil {
return nil, zerrors.ThrowNotFound(err, "QUERY-SFefsd", "Errors.SMS.Twilio.NotFound")
}
token, err := crypto.DecryptString(config.TwilioConfig.Token, n.SMSTokenCrypto)
if err != nil {
return nil, err
}
return &sms.Config{
ProviderConfig: provider,
TwilioConfig: &twilio.Config{
SID: config.TwilioConfig.SID,
Token: token,
SenderNumber: config.TwilioConfig.SenderNumber,
VerifyServiceSID: config.TwilioConfig.VerifyServiceSID,
},
}, nil
}
if config.HTTPConfig != nil {
return &sms.Config{
ProviderConfig: provider,
WebhookConfig: &webhook.Config{
CallURL: config.HTTPConfig.Endpoint,
Method: http.MethodPost,
Headers: nil,
},
}, nil
}
return nil, zerrors.ThrowNotFound(nil, "HANDLER-8nfow", "Errors.SMS.Twilio.NotFound")
}