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Add p2c load-balancing strategy for servers load-balancer

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Co-authored-by: Ian Ross <ifross@gmail.com>
Co-authored-by: Kevin Pollet <pollet.kevin@gmail.com>
This commit is contained in:
Romain 2025-03-10 12:12:04 +01:00 • committed by GitHub
parent 550d96ea67
commit 9e029a84c4
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GPG key ID: B5690EEEBB952194
50 changed files with 1621 additions and 382 deletions
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37
pkg/provider/kubernetes/crd/kubernetes_http.go
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@ -21,9 +21,8 @@ import (
)
const (
roundRobinStrategy = "RoundRobin"
httpsProtocol = "https"
httpProtocol = "http"
httpsProtocol = "https"
httpProtocol = "http"
)
func (p *Provider) loadIngressRouteConfiguration(ctx context.Context, client Client, tlsConfigs map[string]*tls.CertAndStores) *dynamic.HTTPConfiguration {
@ -322,13 +321,33 @@ func (c configBuilder) buildMirroring(ctx context.Context, tService *traefikv1al
// buildServersLB creates the configuration for the load-balancer of servers defined by svc.
func (c configBuilder) buildServersLB(namespace string, svc traefikv1alpha1.LoadBalancerSpec) (*dynamic.Service, error) {
lb := &dynamic.ServersLoadBalancer{}
lb.SetDefaults()
// This is required by the tests as the fake client does not apply default values.
// TODO: remove this when the fake client apply default values.
if svc.Strategy != "" {
switch svc.Strategy {
case dynamic.BalancerStrategyWRR, dynamic.BalancerStrategyP2C:
lb.Strategy = svc.Strategy
// Here we are just logging a warning as the default value is already applied.
case "RoundRobin":
log.Warn().
Str("namespace", namespace).
Str("service", svc.Name).
Msgf("RoundRobin strategy value is deprecated, please use %s value instead", dynamic.BalancerStrategyWRR)
default:
return nil, fmt.Errorf("load-balancer strategy %s is not supported", svc.Strategy)
}
}
servers, err := c.loadServers(namespace, svc)
if err != nil {
return nil, err
}
lb := &dynamic.ServersLoadBalancer{}
lb.SetDefaults()
lb.Servers = servers
if svc.HealthCheck != nil {
@ -421,14 +440,6 @@ func (c configBuilder) makeServersTransportKey(parentNamespace string, serversTr
}
func (c configBuilder) loadServers(parentNamespace string, svc traefikv1alpha1.LoadBalancerSpec) ([]dynamic.Server, error) {
strategy := svc.Strategy
if strategy == "" {
strategy = roundRobinStrategy
}
if strategy != roundRobinStrategy {
return nil, fmt.Errorf("load balancing strategy %s is not supported", strategy)
}
namespace := namespaceOrFallback(svc, parentNamespace)
if !isNamespaceAllowed(c.allowCrossNamespace, parentNamespace, namespace) {