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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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15
pkg/config/dynamic/http_config.go
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@ -211,12 +211,22 @@ func (c *Cookie) SetDefaults() {
c.Path = &defaultPath
}
type BalancerStrategy string
const (
// BalancerStrategyWRR is the weighted round-robin strategy.
BalancerStrategyWRR BalancerStrategy = "wrr"
// BalancerStrategyP2C is the power of two choices strategy.
BalancerStrategyP2C BalancerStrategy = "p2c"
)
// +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" file:"allowEmpty" kv:"allowEmpty" export:"true"`
Servers []Server `json:"servers,omitempty" toml:"servers,omitempty" yaml:"servers,omitempty" label-slice-as-struct:"server" export:"true"`
Sticky *Sticky `json:"sticky,omitempty" toml:"sticky,omitempty" yaml:"sticky,omitempty" label:"allowEmpty" file:"allowEmpty" kv:"allowEmpty" export:"true"`
Servers []Server `json:"servers,omitempty" toml:"servers,omitempty" yaml:"servers,omitempty" label-slice-as-struct:"server" export:"true"`
Strategy BalancerStrategy `json:"strategy,omitempty" toml:"strategy,omitempty" yaml:"strategy,omitempty" export:"true"`
// HealthCheck enables regular active checks of the responsiveness of the
// children servers of this load-balancer. To propagate status changes (e.g. all
// servers of this service are down) upwards, HealthCheck must also be enabled on
@ -249,6 +259,7 @@ func (l *ServersLoadBalancer) SetDefaults() {
defaultPassHostHeader := DefaultPassHostHeader
l.PassHostHeader = &defaultPassHostHeader
l.Strategy = BalancerStrategyWRR
l.ResponseForwarding = &ResponseForwarding{}
l.ResponseForwarding.SetDefaults()
}