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WeightedRoundRobin load balancer

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Co-authored-by: Ludovic Fernandez <ldez@users.noreply.github.com>
This commit is contained in:
Julien Salleyron 2019-08-26 10:30:05 +02:00 • committed by Traefiker Bot
parent 84de444325
commit 6fed76a687
44 changed files with 1612 additions and 833 deletions
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62
pkg/config/dynamic/http_config.go
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@ -19,7 +19,8 @@ type HTTPConfiguration struct {
// Service holds a service configuration (can only be of one type at the same time).
type Service struct {
LoadBalancer *LoadBalancerService `json:"loadBalancer,omitempty" toml:"loadBalancer,omitempty" yaml:"loadBalancer,omitempty"`
LoadBalancer *ServersLoadBalancer `json:"loadBalancer,omitempty" toml:"loadBalancer,omitempty" yaml:"loadBalancer,omitempty"`
Weighted *WeightedRoundRobin `json:"weighted,omitempty" toml:"weighted,omitempty" yaml:"weighted,omitempty" label:"-"`
}
// +k8s:deepcopy-gen=true
@ -45,9 +46,47 @@ type RouterTLSConfig struct {
// +k8s:deepcopy-gen=true
// LoadBalancerService holds the LoadBalancerService configuration.
type LoadBalancerService struct {
Stickiness *Stickiness `json:"stickiness,omitempty" toml:"stickiness,omitempty" yaml:"stickiness,omitempty" label:"allowEmpty"`
// WeightedRoundRobin is a weighted round robin load-balancer of services.
type WeightedRoundRobin struct {
Services []WRRService `json:"services,omitempty" toml:"services,omitempty" yaml:"services,omitempty"`
Sticky *Sticky `json:"sticky,omitempty" toml:"sticky,omitempty" yaml:"sticky,omitempty"`
}
// +k8s:deepcopy-gen=true
// WRRService is a reference to a service load-balanced with weighted round robin.
type WRRService struct {
Name string `json:"name,omitempty" toml:"name,omitempty" yaml:"name,omitempty"`
Weight *int `json:"weight,omitempty" toml:"weight,omitempty" yaml:"weight,omitempty"`
}
// SetDefaults Default values for a ServersLoadBalancer.
func (w *WRRService) SetDefaults() {
defaultWeight := 1
w.Weight = &defaultWeight
}
// +k8s:deepcopy-gen=true
// Sticky holds the sticky configuration.
type Sticky struct {
Cookie *Cookie `json:"cookie,omitempty" toml:"cookie,omitempty" yaml:"cookie,omitempty"`
}
// +k8s:deepcopy-gen=true
// Cookie holds the sticky configuration based on cookie.
type Cookie struct {
Name string `json:"name,omitempty" toml:"name,omitempty" yaml:"name,omitempty"`
Secure bool `json:"secure,omitempty" toml:"secure,omitempty" yaml:"secure,omitempty"`
HTTPOnly bool `json:"httpOnly,omitempty" toml:"httpOnly,omitempty" yaml:"httpOnly,omitempty"`
}
// +k8s:deepcopy-gen=true
// ServersLoadBalancer holds the ServersLoadBalancer configuration.
type ServersLoadBalancer struct {
Sticky *Sticky `json:"sticky,omitempty" toml:"sticky,omitempty" yaml:"sticky,omitempty" label:"allowEmpty"`
Servers []Server `json:"servers,omitempty" toml:"servers,omitempty" yaml:"servers,omitempty" label-slice-as-struct:"server"`
HealthCheck *HealthCheck `json:"healthCheck,omitempty" toml:"healthCheck,omitempty" yaml:"healthCheck,omitempty"`
PassHostHeader bool `json:"passHostHeader" toml:"passHostHeader" yaml:"passHostHeader"`
@ -55,7 +94,7 @@ type LoadBalancerService struct {
}
// Mergeable tells if the given service is mergeable.
func (l *LoadBalancerService) Mergeable(loadBalancer *LoadBalancerService) bool {
func (l *ServersLoadBalancer) Mergeable(loadBalancer *ServersLoadBalancer) bool {
savedServers := l.Servers
defer func() {
l.Servers = savedServers
@ -71,8 +110,8 @@ func (l *LoadBalancerService) Mergeable(loadBalancer *LoadBalancerService) bool
return reflect.DeepEqual(l, loadBalancer)
}
// SetDefaults Default values for a LoadBalancerService.
func (l *LoadBalancerService) SetDefaults() {
// SetDefaults Default values for a ServersLoadBalancer.
func (l *ServersLoadBalancer) SetDefaults() {
l.PassHostHeader = true
}
@ -85,15 +124,6 @@ type ResponseForwarding struct {
// +k8s:deepcopy-gen=true
// Stickiness holds the stickiness configuration.
type Stickiness struct {
CookieName string `json:"cookieName,omitempty" toml:"cookieName,omitempty" yaml:"cookieName,omitempty"`
SecureCookie bool `json:"secureCookie,omitempty" toml:"secureCookie,omitempty" yaml:"secureCookie,omitempty"`
HTTPOnlyCookie bool `json:"httpOnlyCookie,omitempty" toml:"httpOnlyCookie,omitempty" yaml:"httpOnlyCookie,omitempty"`
}
// +k8s:deepcopy-gen=true
// Server holds the server configuration.
type Server struct {
URL string `json:"url,omitempty" toml:"url,omitempty" yaml:"url,omitempty" label:"-"`