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Reserve priority range for internal routers

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Co-authored-by: Romain <rtribotte@users.noreply.github.com>
This commit is contained in:
Baptiste Mayelle 2024-04-02 17:04:05 +02:00 • committed by GitHub
parent c31f5df854
commit 2bc3fa7b4b
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6 changed files with 116 additions and 0 deletions
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11
pkg/server/router/router.go
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@ -4,7 +4,9 @@ import (
"context"
"errors"
"fmt"
"math"
"net/http"
"strings"
"github.com/containous/alice"
"github.com/traefik/traefik/v2/pkg/config/runtime"
@ -21,6 +23,8 @@ import (
"github.com/traefik/traefik/v2/pkg/tls"
)
const maxUserPriority = math.MaxInt - 1000
type middlewareBuilder interface {
BuildChain(ctx context.Context, names []string) *alice.Chain
}
@ -115,6 +119,13 @@ func (m *Manager) buildEntryPointHandler(ctx context.Context, configs map[string
ctxRouter := log.With(provider.AddInContext(ctx, routerName), log.Str(log.RouterName, routerName))
logger := log.FromContext(ctxRouter)
if routerConfig.Priority > maxUserPriority && !strings.HasSuffix(routerName, "@internal") {
err = fmt.Errorf("the router priority %d exceeds the max user-defined priority %d", routerConfig.Priority, maxUserPriority)
routerConfig.AddError(err, true)
logger.Error(err)
continue
}
handler, err := m.buildRouterHandler(ctxRouter, routerName, routerConfig)
if err != nil {
routerConfig.AddError(err, true)