107 lines
2 KiB
Go
107 lines
2 KiB
Go
package server
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import (
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"errors"
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"net"
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"os"
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"os/signal"
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"syscall"
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configurationapi "github.com/ehazlett/element/api/services/configuration"
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"github.com/ehazlett/element/config"
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"github.com/ehazlett/element/datastore"
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"github.com/ehazlett/element/proxy"
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"github.com/ehazlett/element/runtime"
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"github.com/sirupsen/logrus"
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"google.golang.org/grpc"
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)
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var (
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ErrServiceNotFound = errors.New("service not found")
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)
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type Server struct {
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cfg *config.Config
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proxy *proxy.Proxy
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runtime runtime.Runtime
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store datastore.Datastore
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}
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func NewServer(cfg *config.Config) (*Server, error) {
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p, err := proxy.NewProxy(&proxy.Config{})
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if err != nil {
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return nil, err
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}
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r, err := loadRuntime(cfg.Runtime)
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if err != nil {
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return nil, err
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}
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store, err := loadDatastore(cfg.Datastore)
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if err != nil {
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return nil, err
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}
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c, err := r.List("")
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if err != nil {
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return nil, err
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}
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logrus.WithFields(logrus.Fields{
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"containers": c,
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}).Debug("runtime containers")
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return &Server{
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cfg: cfg,
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proxy: p,
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runtime: r,
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store: store,
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}, nil
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}
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func (s *Server) Run() error {
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grpcServer := grpc.NewServer()
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configurationapi.RegisterConfigurationServer(grpcServer, s)
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l, err := net.Listen("tcp", s.cfg.GRPCAddr)
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if err != nil {
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return err
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}
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//cfg := &proxy.Config{
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// Frontends: map[string]*proxy.Frontend{
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// "element": &proxy.Frontend{
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// Name: "element",
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// Hosts: []string{s.cfg.ListenAddr},
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// Backend: &proxy.Backend{
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// Path: "/",
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// Upstreams: []string{"unix:" + s.cfg.SocketPath},
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// },
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// },
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// },
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//}
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if err := s.proxy.Start(); err != nil {
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return err
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}
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// handle SIGHUP
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c := make(chan os.Signal, 1)
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signal.Notify(c, syscall.SIGHUP)
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go func() {
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for range c {
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logrus.Debugf("received SIGHUP; reloading")
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if err := s.proxy.Reload(); err != nil {
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logrus.Errorf("error reloading proxy: %s", err)
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}
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}
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}()
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grpcServer.Serve(l)
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return nil
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}
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func (s *Server) Stop() error {
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return s.proxy.Stop()
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}
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