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# Which Problems Are Solved
The event execution system currently uses a projection handler that
subscribes to and processes all events for all instances. This creates a
high static cost because the system over-fetches event data, handling
many events that are not needed by most instances. This inefficiency is
also reflected in high "rows returned" metrics in the database.
# How the Problems Are Solved
Eliminate the use of a project handler. Instead, events for which
"execution targets" are defined, are directly pushed to the queue by the
eventstore. A Router is populated in the Instance object in the authz
middleware.
- By joining the execution targets to the instance, no additional
queries are needed anymore.
- As part of the instance object, execution targets are now cached as
well.
- Events are queued within the same transaction, giving transactional
guarantees on delivery.
- Uses the "insert many fast` variant of River. Multiple jobs are queued
in a single round-trip to the database.
- Fix compatibility with PostgreSQL 15
# Additional Changes
- The signing key was stored as plain-text in the river job payload in
the DB. This violated our [Secrets
Storage](https://zitadel.com/docs/concepts/architecture/secrets#secrets-storage)
principle. This change removed the field and only uses the encrypted
version of the signing key.
- Fixed the target ordering from descending to ascending.
- Some minor linter warnings on the use of `io.WriteString()`.
# Additional Context
- Introduced in https://github.com/zitadel/zitadel/pull/9249
- Closes https://github.com/zitadel/zitadel/issues/10553
- Closes https://github.com/zitadel/zitadel/issues/9832
- Closes https://github.com/zitadel/zitadel/issues/10372
- Closes https://github.com/zitadel/zitadel/issues/10492
---------
Co-authored-by: Stefan Benz <46600784+stebenz@users.noreply.github.com>
(cherry picked from commit a9ebc06c77)
51 lines
1.2 KiB
Go
51 lines
1.2 KiB
Go
package target
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import (
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"time"
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"github.com/zitadel/zitadel/internal/crypto"
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)
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type TargetType uint
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const (
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TargetTypeWebhook TargetType = iota
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TargetTypeCall
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TargetTypeAsync
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)
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type Target struct {
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ExecutionID string `json:"execution_id,omitempty"`
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TargetID string `json:"target_id,omitempty"`
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TargetType TargetType `json:"target_type,omitempty"`
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Endpoint string `json:"endpoint,omitempty"`
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Timeout time.Duration `json:"timeout,omitempty"`
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InterruptOnError bool `json:"interrupt_on_error,omitempty"`
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SigningKey *crypto.CryptoValue `json:"signing_key,omitempty"`
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}
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func (e *Target) GetExecutionID() string {
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return e.ExecutionID
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}
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func (e *Target) GetTargetID() string {
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return e.TargetID
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}
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func (e *Target) IsInterruptOnError() bool {
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return e.InterruptOnError
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}
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func (e *Target) GetEndpoint() string {
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return e.Endpoint
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}
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func (e *Target) GetTargetType() TargetType {
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return e.TargetType
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}
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func (e *Target) GetTimeout() time.Duration {
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return e.Timeout
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}
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func (e *Target) GetSigningKey(alg crypto.EncryptionAlgorithm) (string, error) {
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if e.SigningKey == nil {
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return "", nil
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}
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return crypto.DecryptString(e.SigningKey, alg)
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}
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