mirror of https://github.com/status-im/consul.git
59 lines
1.6 KiB
Go
59 lines
1.6 KiB
Go
package xds
|
|
|
|
import (
|
|
"errors"
|
|
|
|
envoy "github.com/envoyproxy/go-control-plane/envoy/api/v2"
|
|
envoyendpoint "github.com/envoyproxy/go-control-plane/envoy/api/v2/endpoint"
|
|
"github.com/gogo/protobuf/proto"
|
|
|
|
"github.com/hashicorp/consul/agent/proxycfg"
|
|
"github.com/hashicorp/consul/agent/structs"
|
|
)
|
|
|
|
// endpointsFromSnapshot returns the xDS API representation of the "endpoints"
|
|
// (upstream instances) in the snapshot.
|
|
func endpointsFromSnapshot(cfgSnap *proxycfg.ConfigSnapshot, token string) ([]proto.Message, error) {
|
|
if cfgSnap == nil {
|
|
return nil, errors.New("nil config given")
|
|
}
|
|
resources := make([]proto.Message, 0, len(cfgSnap.UpstreamEndpoints))
|
|
for id, endpoints := range cfgSnap.UpstreamEndpoints {
|
|
if len(endpoints) < 1 {
|
|
continue
|
|
}
|
|
la := makeLoadAssignment(id, endpoints)
|
|
resources = append(resources, la)
|
|
}
|
|
return resources, nil
|
|
}
|
|
|
|
func makeEndpoint(clusterName, host string, port int) envoyendpoint.LbEndpoint {
|
|
return envoyendpoint.LbEndpoint{
|
|
Endpoint: &envoyendpoint.Endpoint{
|
|
Address: makeAddressPtr(host, port),
|
|
},
|
|
}
|
|
}
|
|
|
|
func makeLoadAssignment(clusterName string, endpoints structs.CheckServiceNodes) *envoy.ClusterLoadAssignment {
|
|
es := make([]envoyendpoint.LbEndpoint, 0, len(endpoints))
|
|
for _, ep := range endpoints {
|
|
addr := ep.Service.Address
|
|
if addr == "" {
|
|
addr = ep.Node.Address
|
|
}
|
|
es = append(es, envoyendpoint.LbEndpoint{
|
|
Endpoint: &envoyendpoint.Endpoint{
|
|
Address: makeAddressPtr(addr, ep.Service.Port),
|
|
},
|
|
})
|
|
}
|
|
return &envoy.ClusterLoadAssignment{
|
|
ClusterName: clusterName,
|
|
Endpoints: []envoyendpoint.LocalityLbEndpoints{{
|
|
LbEndpoints: es,
|
|
}},
|
|
}
|
|
}
|