feat(logging): add streams (#11435)

# Which Problems Are Solved

Streams allow differentiating logs produced by different components of
Zitadel.

# How the Problems Are Solved

The `backend/v3/instrumentation/logging` package now exposes convenience
function for setting and getting a logger from the context. As well as
high-level functions to emit log records at various levels. When
constructing a new logger a "stream" needs to be specified:

- **runtime**: General runtime logs, such as startup and shutdown
messages. Default for logs that do not belong to the other categories.
- **request**: Logs for incoming API and HTTP requests.
- **event_handler**: Logs for event handling in projections.
- **queue**: Logs for the job queue processing.
- **event_pusher**: Logs for event pushing to the database. Disabled by
default, contains sensitive information.

Each line from the returned logger contains a `stream` field as well as
a `version` field with the current Zitadel version.

## Runtime config

Streams can be enabled by passing an array of stream names in the
runtime config. Because some log streams may contain sensitive data
(especially events), it is now also possible to mask values by their
key.

# Additional Changes

- Wrap `slogctx` in the `logging` package. (Except API error converter
packages, because of import cycle)
- Add some docs to `logging` package so other devs understand how to add
logging to Zitadel
- Add `logging.OnError` and `logging.WithError` helper functions with
`Panic()` and `Fatal()` methods, to preserve current calls in the `cmd`
packages.
- Add instance context extractor.
- Only output request details in the request info log. Request ID
remains propagated through context.
- Moved middleware functionality into protocol specific packages. 
- Removed setting of URI to context in metric middleware. There were ony
setters and no getters. (Unused value)
- Reuse a single statusWriter in the middleware package for middlewares
that need to know the response status.

# Additional Context

- Closes #11333
- Closes #11331 
- Partly #11330

---------

Co-authored-by: Silvan <[email protected]>

cmd/mirror/auth.go

@@ -11,8 +11,8 @@ import (
 	"github.com/jackc/pgx/v5/stdlib"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
-	"github.com/zitadel/logging"
 
+	"github.com/zitadel/zitadel/backend/v3/instrumentation/logging"
 	"github.com/zitadel/zitadel/internal/database"
 )
 
@@ -24,7 +24,10 @@ func authCmd() *cobra.Command {
 ZITADEL needs to be initialized and set up with the --for-mirror flag
 Only auth requests are mirrored`,
 		RunE: func(cmd *cobra.Command, args []string) (err error) {
-			config, shutdown, err := mustNewMigrationConfig(cmd.Context(), viper.GetViper())
+			defer func() {
+				logging.OnError(cmd.Context(), err).Error("zitadel mirror auth command failed")
+			}()
+			config, shutdown, err := newMigrationConfig(cmd, viper.GetViper())
 			if err != nil {
 				return err
 			}
@@ -43,11 +46,11 @@ Only auth requests are mirrored`,
 
 func copyAuth(ctx context.Context, config *Migration) {
 	sourceClient, err := database.Connect(config.Source, false)
-	logging.OnError(err).Fatal("unable to connect to source database")
+	logging.OnError(ctx, err).Fatal("unable to connect to source database")
 	defer sourceClient.Close()
 
 	destClient, err := database.Connect(config.Destination, false)
-	logging.OnError(err).Fatal("unable to connect to destination database")
+	logging.OnError(ctx, err).Fatal("unable to connect to destination database")
 	defer destClient.Close()
 
 	copyAuthRequests(ctx, sourceClient, destClient, config.MaxAuthRequestAge)
@@ -56,12 +59,12 @@ func copyAuth(ctx context.Context, config *Migration) {
 func copyAuthRequests(ctx context.Context, source, dest *database.DB, maxAuthRequestAge time.Duration) {
 	start := time.Now()
 
-	logging.Info("creating index on auth.auth_requests.change_date to speed up copy in source database")
+	logging.Info(ctx, "creating index on auth.auth_requests.change_date to speed up copy in source database")
 	_, err := source.ExecContext(ctx, "CREATE INDEX CONCURRENTLY IF NOT EXISTS auth_requests_change_date ON auth.auth_requests (change_date)")
-	logging.OnError(err).Fatal("unable to create index on auth.auth_requests.change_date")
+	logging.OnError(ctx, err).Fatal("unable to create index on auth.auth_requests.change_date")
 
 	sourceConn, err := source.Conn(ctx)
-	logging.OnError(err).Fatal("unable to acquire connection")
+	logging.OnError(ctx, err).Fatal("unable to acquire connection")
 	defer sourceConn.Close()
 
 	r, w := io.Pipe()
@@ -78,7 +81,7 @@ func copyAuthRequests(ctx context.Context, source, dest *database.DB, maxAuthReq
 	}()
 
 	destConn, err := dest.Conn(ctx)
-	logging.OnError(err).Fatal("unable to acquire connection")
+	logging.OnError(ctx, err).Fatal("unable to acquire connection")
 	defer destConn.Close()
 
 	var affected int64
@@ -97,7 +100,7 @@ func copyAuthRequests(ctx context.Context, source, dest *database.DB, maxAuthReq
 
 		return err
 	})
-	logging.OnError(err).Fatal("unable to copy auth requests to destination")
-	logging.OnError(<-errs).Fatal("unable to copy auth requests from source")
-	logging.WithFields("took", time.Since(start), "count", affected).Info("auth requests migrated")
+	logging.OnError(ctx, err).Fatal("unable to copy auth requests to destination")
+	logging.OnError(ctx, <-errs).Fatal("unable to copy auth requests from source")
+	logging.Info(ctx, "auth requests migrated", "took", time.Since(start), "count", affected)
 }