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Add logic to create HTTP Listener with new annotations. #4

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Add logic to create HTTP Listener with new annotations. #4

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76 changes: 64 additions & 12 deletions pkg/cloudprovider/providers/aliyun/loadbalancer.go
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Original file line number Diff line number Diff line change
Expand Up @@ -30,13 +30,30 @@ import (
autil "kubeup.com/kube-aliyun/pkg/util"
)

/*
https://kubernetes.io/docs/concepts/services-networking/service/

Example:
---
apiVersion: v1
kind: Service
metadata:
annotations:
aliyun.archon.kubeup.com/bandwidth: "1"
aliyun.archon.kubeup.com/load-balancer-backend-protocol: "http"
aliyun.archon.kubeup.com/load-balancer-health-check: "true"
*/
type AliyunLoadBalancerOptions struct {
InternetChargeType string `k8s:"internet-charge-type"`
Bandwidth int `k8s:"bandwidth"`
HealthyThreshold int `k8s:"healthy-threshold"`
UnhealthyThreshold int `k8s:"unhealthy-threshold"`
HealthCheckConnectTimeout int `k8s:"health-check-connect-timeout"`
HealthCheckInterval int `k8s:"health-check-interval"`
BackendProtocol string `k8s:"load-balancer-backend-protocol"`
HealthCheck bool `k8s:"load-balancer-http-health-check"`
HealthCheckURI string `k8s:"load-balancer-http-health-check-uri"`
HealthCheckTimeout int `k8s:"load-balancer-http-health-check-timeout"`
}

// Loadbalancer helpers
Expand Down Expand Up @@ -290,19 +307,53 @@ func (p *AliyunProvider) ensureLBListeners(lb *slb.LoadBalancerType, ports []api
var err error
switch sp.Protocol {
case api.ProtocolTCP:
args := &slb.CreateLoadBalancerTCPListenerArgs{
LoadBalancerId: lb.LoadBalancerId,
ListenerPort: int(sp.Port),
BackendServerPort: int(sp.NodePort),
Bandwidth: options.Bandwidth,
HealthCheckType: slb.TCPHealthCheckType,
HealthCheckConnectPort: int(sp.NodePort),
HealthyThreshold: options.HealthyThreshold,
UnhealthyThreshold: options.UnhealthyThreshold,
HealthCheckConnectTimeout: options.HealthCheckConnectTimeout,
HealthCheckInterval: options.HealthCheckInterval,
if "HTTP" != strings.ToUpper(options.BackendProtocol) {
args := &slb.CreateLoadBalancerTCPListenerArgs{
LoadBalancerId: lb.LoadBalancerId,
ListenerPort: int(sp.Port),
BackendServerPort: int(sp.NodePort),
Bandwidth: options.Bandwidth,
HealthCheckType: slb.TCPHealthCheckType,
HealthCheckConnectPort: int(sp.NodePort),
HealthyThreshold: options.HealthyThreshold,
UnhealthyThreshold: options.UnhealthyThreshold,
HealthCheckConnectTimeout: options.HealthCheckConnectTimeout,
HealthCheckInterval: options.HealthCheckInterval,
}
err = p.slbClient.CreateLoadBalancerTCPListener(args)
} else {
// https://help.aliyun.com/document_detail/27592.html?spm=5176.doc27637.6.646.7Me9In
args := &slb.CreateLoadBalancerHTTPListenerArgs{
LoadBalancerId: lb.LoadBalancerId,
ListenerPort: int(sp.Port),
BackendServerPort: int(sp.NodePort),
Bandwidth: options.Bandwidth,
StickySession: slb.OffFlag,
}

// Check value of "aliyun.archon.kubeup.com/load-balancer-http-health-check"
if true == options.HealthCheck {
args.HealthCheck = slb.OnFlag
args.HealthCheckConnectPort = int(sp.NodePort)
args.HealthCheckHttpCode = "http_2xx,http_3xx,http_4xx"

// Check existence of mandatory values and setup default values
if 0 == len(options.HealthCheckURI) { options.HealthCheckURI = "/" }
if 0 == options.HealthCheckConnectTimeout { options.HealthCheckTimeout = 3 }
if 0 == options.HealthCheckInterval { options.HealthCheckInterval = 5 }
if 0 == options.HealthyThreshold { options.HealthyThreshold = 4 }
if 0 == options.UnhealthyThreshold { options.UnhealthyThreshold = 4 }

args.HealthCheckURI = options.HealthCheckURI
args.HealthCheckTimeout = options.HealthCheckTimeout
args.HealthCheckInterval = options.HealthCheckInterval
args.HealthyThreshold = options.HealthyThreshold
args.UnhealthyThreshold = options.UnhealthyThreshold
} else {
args.HealthCheck = slb.OffFlag
}
err = p.slbClient.CreateLoadBalancerHTTPListener(args)
}
err = p.slbClient.CreateLoadBalancerTCPListener(args)
case api.ProtocolUDP:
args := &slb.CreateLoadBalancerUDPListenerArgs{
LoadBalancerId: lb.LoadBalancerId,
Expand All @@ -316,6 +367,7 @@ func (p *AliyunProvider) ensureLBListeners(lb *slb.LoadBalancerType, ports []api
HealthCheckInterval: options.HealthCheckInterval,
}
err = p.slbClient.CreateLoadBalancerUDPListener(args)

default:
err = fmt.Errorf("Error creating service listener. Unsupported listener protocol: %s", string(sp.Protocol))
}
Expand Down