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mserver.go
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mserver.go
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package mserver
import (
"context"
"net/http"
"github.com/enfabrica/enkit/lib/server"
"github.com/enfabrica/enkit/machinist/config"
mpb "github.com/enfabrica/enkit/machinist/rpc"
"google.golang.org/grpc"
)
func New(mods ...Modifier) (*ControlPlane, error) {
kd, err := NewController()
if err != nil {
return nil, err
}
s := &ControlPlane{
killChannel: make(chan error),
Controller: kd,
Common: config.DefaultCommonFlags(),
allRecordsKillChannel: make(chan struct{}, 1),
allRecordsKillAckChannel: make(chan struct{}, 1),
}
for _, m := range mods {
if err := m(s); err != nil {
return nil, err
}
}
return s, nil
}
type ControlPlane struct {
insecure bool
runningServer *grpc.Server
allRecordsKillChannel chan struct{}
allRecordsKillAckChannel chan struct{}
killChannel chan error
Controller *Controller
*config.Common
}
func (s *ControlPlane) MachinistCommon() *config.Common {
return s.Common
}
func (s *ControlPlane) Run() error {
ctx := context.Background()
grpcs := grpc.NewServer()
mpb.RegisterControllerServer(grpcs, s.Controller)
s.runningServer = grpcs
go func() {
s.killChannel <- s.Controller.dnsServer.Run()
}()
s.Controller.Init()
go s.Controller.ServeAllAndInfoRecords(s.allRecordsKillChannel, s.allRecordsKillAckChannel)
go s.Controller.WriteState()
mux := http.NewServeMux()
mux.HandleFunc("/metrics_targets", s.Controller.MetricsTargets)
return server.Run(ctx, mux, grpcs, s.Listener)
}
func (s *ControlPlane) Stop() error {
s.allRecordsKillChannel <- struct{}{}
<-s.allRecordsKillAckChannel
return s.Controller.dnsServer.Stop()
}