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Native Kubernetes service load-balancing at the provider level

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Prajith 2024-04-29 15:50:04 +05:30 • committed by GitHub
parent 73e5dbbfe5
commit 8d2a2ff08f
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23 changed files with 642 additions and 50 deletions
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32
pkg/provider/kubernetes/ingress/kubernetes.go
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@ -52,6 +52,7 @@ type Provider struct {
AllowEmptyServices bool `description:"Allow creation of services without endpoints." json:"allowEmptyServices,omitempty" toml:"allowEmptyServices,omitempty" yaml:"allowEmptyServices,omitempty" export:"true"`
AllowExternalNameServices bool `description:"Allow ExternalName services." json:"allowExternalNameServices,omitempty" toml:"allowExternalNameServices,omitempty" yaml:"allowExternalNameServices,omitempty" export:"true"`
DisableIngressClassLookup bool `description:"Disables the lookup of IngressClasses." json:"disableIngressClassLookup,omitempty" toml:"disableIngressClassLookup,omitempty" yaml:"disableIngressClassLookup,omitempty" export:"true"`
NativeLBByDefault bool `description:"Defines whether to use Native Kubernetes load-balancing mode by default." json:"nativeLBByDefault,omitempty" toml:"nativeLBByDefault,omitempty" yaml:"nativeLBByDefault,omitempty" export:"true"`
lastConfiguration safe.Safe
@ -571,6 +572,8 @@ func (p *Provider) loadService(client Client, namespace string, backend netv1.In
return nil, err
}
nativeLB := p.NativeLBByDefault
if svcConfig != nil && svcConfig.Service != nil {
svc.LoadBalancer.Sticky = svcConfig.Service.Sticky
@ -582,19 +585,8 @@ func (p *Provider) loadService(client Client, namespace string, backend netv1.In
svc.LoadBalancer.ServersTransport = svcConfig.Service.ServersTransport
}
if svcConfig.Service.NativeLB {
address, err := getNativeServiceAddress(*service, portSpec)
if err != nil {
return nil, fmt.Errorf("getting native Kubernetes Service address: %w", err)
}
protocol := getProtocol(portSpec, portSpec.Name, svcConfig)
svc.LoadBalancer.Servers = []dynamic.Server{
{URL: fmt.Sprintf("%s://%s", protocol, address)},
}
return svc, nil
if svcConfig.Service.NativeLB != nil {
nativeLB = *svcConfig.Service.NativeLB
}
}
@ -609,6 +601,20 @@ func (p *Provider) loadService(client Client, namespace string, backend netv1.In
return svc, nil
}
if nativeLB {
address, err := getNativeServiceAddress(*service, portSpec)
if err != nil {
return nil, fmt.Errorf("getting native Kubernetes Service address: %w", err)
}
protocol := getProtocol(portSpec, portSpec.Name, svcConfig)
svc.LoadBalancer.Servers = []dynamic.Server{
{URL: fmt.Sprintf("%s://%s", protocol, address)},
}
return svc, nil
}
endpoints, endpointsExists, endpointsErr := client.GetEndpoints(namespace, backend.Service.Name)
if endpointsErr != nil {
return nil, endpointsErr