consul/agent/xdsv2/resources.go

76 lines
1.7 KiB
Go

// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: BUSL-1.1
package xdsv2
import (
"fmt"
"github.com/hashicorp/consul/internal/mesh"
"github.com/hashicorp/go-hclog"
"google.golang.org/protobuf/proto"
"github.com/hashicorp/consul/envoyextensions/xdscommon"
)
// ResourceGenerator is associated with a single gRPC stream and creates xDS
// resources for a single client.
type ResourceGenerator struct {
Logger hclog.Logger
ProxyFeatures xdscommon.SupportedProxyFeatures
}
func NewResourceGenerator(
logger hclog.Logger,
) *ResourceGenerator {
return &ResourceGenerator{
Logger: logger,
}
}
type ProxyResources struct {
proxyState *mesh.ProxyState
envoyResources map[string][]proto.Message
}
func (g *ResourceGenerator) AllResourcesFromIR(proxyState *mesh.ProxyState) (map[string][]proto.Message, error) {
pr := &ProxyResources{
proxyState: proxyState,
envoyResources: make(map[string][]proto.Message),
}
err := pr.generateXDSResources()
if err != nil {
return nil, fmt.Errorf("failed to generate xDS resources for ProxyState: %v", err)
}
return pr.envoyResources, nil
}
func (pr *ProxyResources) generateXDSResources() error {
listeners, err := pr.makeXDSListeners()
if err != nil {
return err
}
pr.envoyResources[xdscommon.ListenerType] = listeners
clusters, err := pr.makeXDSClusters()
if err != nil {
return err
}
pr.envoyResources[xdscommon.ClusterType] = clusters
endpoints, err := pr.makeXDSEndpoints()
if err != nil {
return err
}
pr.envoyResources[xdscommon.EndpointType] = endpoints
routes, err := pr.makeXDSRoutes()
if err != nil {
return err
}
pr.envoyResources[xdscommon.RouteType] = routes
return nil
}