1 // Copyright (C) The Arvados Authors. All rights reserved.
3 // SPDX-License-Identifier: Apache-2.0
5 // package service provides a cmd.Handler that brings up a system service.
14 "git.curoverse.com/arvados.git/lib/cmd"
15 "git.curoverse.com/arvados.git/sdk/go/arvados"
16 "git.curoverse.com/arvados.git/sdk/go/httpserver"
17 "github.com/Sirupsen/logrus"
18 "github.com/coreos/go-systemd/daemon"
21 type NewHandlerFunc func(*arvados.Cluster, *arvados.SystemNode) http.Handler
24 newHandler NewHandlerFunc
25 svcName arvados.ServiceName
28 // Command returns a cmd.Handler that loads site config, calls
29 // newHandler with the current cluster and node configs, and brings up
30 // an http server with the returned handler.
32 // The handler is wrapped with server middleware (adding X-Request-ID
33 // headers, logging requests/responses, etc).
34 func Command(svcName arvados.ServiceName, newHandler NewHandlerFunc) cmd.Handler {
36 newHandler: newHandler,
41 func (c *command) RunCommand(prog string, args []string, stdin io.Reader, stdout, stderr io.Writer) int {
43 log.Formatter = &logrus.JSONFormatter{
44 TimestampFormat: rfc3339NanoFixed,
51 log.WithError(err).Info("exiting")
54 flags := flag.NewFlagSet("", flag.ContinueOnError)
55 flags.SetOutput(stderr)
56 configFile := flags.String("config", arvados.DefaultConfigFile, "Site configuration `file`")
57 hostName := flags.String("host", "", "Host profile `name` to use in SystemNodes config (if blank, use hostname reported by OS)")
58 err = flags.Parse(args)
59 if err == flag.ErrHelp {
62 } else if err != nil {
65 cfg, err := arvados.GetConfig(*configFile)
69 cluster, err := cfg.GetCluster("")
73 node, err := cluster.GetSystemNode(*hostName)
77 listen := node.ServicePorts()[c.svcName]
79 err = fmt.Errorf("configuration does not enable the %s service on this host", c.svcName)
82 srv := &httpserver.Server{
84 Handler: httpserver.AddRequestIDs(httpserver.LogRequests(log, c.newHandler(cluster, node))),
92 log.WithFields(logrus.Fields{
96 if _, err := daemon.SdNotify(false, "READY=1"); err != nil {
97 log.WithError(err).Errorf("error notifying init daemon")
106 const rfc3339NanoFixed = "2006-01-02T15:04:05.000000000Z07:00"