"flag"
"fmt"
"io"
+ "net"
"net/http"
+ "net/url"
"os"
+ "strings"
- "git.curoverse.com/arvados.git/lib/cmd"
- "git.curoverse.com/arvados.git/sdk/go/arvados"
- "git.curoverse.com/arvados.git/sdk/go/ctxlog"
- "git.curoverse.com/arvados.git/sdk/go/httpserver"
+ "git.arvados.org/arvados.git/lib/cmd"
+ "git.arvados.org/arvados.git/lib/config"
+ "git.arvados.org/arvados.git/sdk/go/arvados"
+ "git.arvados.org/arvados.git/sdk/go/ctxlog"
+ "git.arvados.org/arvados.git/sdk/go/httpserver"
"github.com/coreos/go-systemd/daemon"
+ "github.com/prometheus/client_golang/prometheus"
"github.com/sirupsen/logrus"
)
type Handler interface {
http.Handler
CheckHealth() error
+ Done() <-chan struct{}
}
-type NewHandlerFunc func(context.Context, *arvados.Cluster, *arvados.NodeProfile) Handler
+type NewHandlerFunc func(_ context.Context, _ *arvados.Cluster, token string, registry *prometheus.Registry) Handler
type command struct {
newHandler NewHandlerFunc
svcName arvados.ServiceName
+ ctx context.Context // enables tests to shutdown service; no public API yet
}
// Command returns a cmd.Handler that loads site config, calls
return &command{
newHandler: newHandler,
svcName: svcName,
+ ctx: context.Background(),
}
}
var err error
defer func() {
if err != nil {
- log.WithError(err).Info("exiting")
+ log.WithError(err).Error("exiting")
}
}()
+
flags := flag.NewFlagSet("", flag.ContinueOnError)
flags.SetOutput(stderr)
- configFile := flags.String("config", arvados.DefaultConfigFile, "Site configuration `file`")
- nodeProfile := flags.String("node-profile", "", "`Name` of NodeProfiles config entry to use (if blank, use $ARVADOS_NODE_PROFILE or hostname reported by OS)")
+
+ loader := config.NewLoader(stdin, log)
+ loader.SetupFlags(flags)
+ versionFlag := flags.Bool("version", false, "Write version information to stdout and exit 0")
err = flags.Parse(args)
if err == flag.ErrHelp {
err = nil
return 0
} else if err != nil {
return 2
+ } else if *versionFlag {
+ return cmd.Version.RunCommand(prog, args, stdin, stdout, stderr)
+ }
+
+ if strings.HasSuffix(prog, "controller") {
+ // Some config-loader checks try to make API calls via
+ // controller. Those can't be expected to work if this
+ // process _is_ the controller: we haven't started an
+ // http server yet.
+ loader.SkipAPICalls = true
}
- cfg, err := arvados.GetConfig(*configFile)
+
+ cfg, err := loader.Load()
if err != nil {
return 1
}
if err != nil {
return 1
}
- log = ctxlog.New(stderr, cluster.Logging.Format, cluster.Logging.Level).WithFields(logrus.Fields{
+
+ // Now that we've read the config, replace the bootstrap
+ // logger with a new one according to the logging config.
+ log = ctxlog.New(stderr, cluster.SystemLogs.Format, cluster.SystemLogs.LogLevel)
+ logger := log.WithFields(logrus.Fields{
"PID": os.Getpid(),
})
- ctx := ctxlog.Context(context.Background(), log)
- profileName := *nodeProfile
- if profileName == "" {
- profileName = os.Getenv("ARVADOS_NODE_PROFILE")
- }
- profile, err := cluster.GetNodeProfile(profileName)
+ ctx := ctxlog.Context(c.ctx, logger)
+
+ listenURL, err := getListenAddr(cluster.Services, c.svcName, log)
if err != nil {
return 1
}
- listen := profile.ServicePorts()[c.svcName]
- if listen == "" {
- err = fmt.Errorf("configuration does not enable the %s service on this host", c.svcName)
- return 1
- }
- handler := c.newHandler(ctx, cluster, profile)
+ ctx = context.WithValue(ctx, contextKeyURL{}, listenURL)
+
+ reg := prometheus.NewRegistry()
+ handler := c.newHandler(ctx, cluster, cluster.SystemRootToken, reg)
if err = handler.CheckHealth(); err != nil {
return 1
}
+
+ instrumented := httpserver.Instrument(reg, log,
+ httpserver.HandlerWithContext(ctx,
+ httpserver.AddRequestIDs(
+ httpserver.LogRequests(
+ httpserver.NewRequestLimiter(cluster.API.MaxConcurrentRequests, handler, reg)))))
srv := &httpserver.Server{
Server: http.Server{
- Handler: httpserver.AddRequestIDs(httpserver.LogRequests(log, handler)),
+ Handler: instrumented.ServeAPI(cluster.ManagementToken, instrumented),
},
- Addr: listen,
+ Addr: listenURL.Host,
+ }
+ if listenURL.Scheme == "https" {
+ tlsconfig, err := tlsConfigWithCertUpdater(cluster, logger)
+ if err != nil {
+ logger.WithError(err).Errorf("cannot start %s service on %s", c.svcName, listenURL.String())
+ return 1
+ }
+ srv.TLSConfig = tlsconfig
}
err = srv.Start()
if err != nil {
return 1
}
- log.WithFields(logrus.Fields{
+ logger.WithFields(logrus.Fields{
+ "URL": listenURL,
"Listen": srv.Addr,
"Service": c.svcName,
}).Info("listening")
if _, err := daemon.SdNotify(false, "READY=1"); err != nil {
- log.WithError(err).Errorf("error notifying init daemon")
+ logger.WithError(err).Errorf("error notifying init daemon")
}
+ go func() {
+ // Shut down server if caller cancels context
+ <-ctx.Done()
+ srv.Close()
+ }()
+ go func() {
+ // Shut down server if handler dies
+ <-handler.Done()
+ srv.Close()
+ }()
err = srv.Wait()
if err != nil {
return 1
}
const rfc3339NanoFixed = "2006-01-02T15:04:05.000000000Z07:00"
+
+func getListenAddr(svcs arvados.Services, prog arvados.ServiceName, log logrus.FieldLogger) (arvados.URL, error) {
+ svc, ok := svcs.Map()[prog]
+ if !ok {
+ return arvados.URL{}, fmt.Errorf("unknown service name %q", prog)
+ }
+
+ if want := os.Getenv("ARVADOS_SERVICE_INTERNAL_URL"); want == "" {
+ } else if url, err := url.Parse(want); err != nil {
+ return arvados.URL{}, fmt.Errorf("$ARVADOS_SERVICE_INTERNAL_URL (%q): %s", want, err)
+ } else {
+ return arvados.URL(*url), nil
+ }
+
+ errors := []string{}
+ for url := range svc.InternalURLs {
+ listener, err := net.Listen("tcp", url.Host)
+ if err == nil {
+ listener.Close()
+ return url, nil
+ } else if strings.Contains(err.Error(), "cannot assign requested address") {
+ // If 'Host' specifies a different server than
+ // the current one, it'll resolve the hostname
+ // to IP address, and then fail because it
+ // can't bind an IP address it doesn't own.
+ continue
+ } else {
+ errors = append(errors, fmt.Sprintf("tried %v, got %v", url, err))
+ }
+ }
+ if len(errors) > 0 {
+ return arvados.URL{}, fmt.Errorf("could not enable the %q service on this host: %s", prog, strings.Join(errors, "; "))
+ }
+ return arvados.URL{}, fmt.Errorf("configuration does not enable the %q service on this host", prog)
+}
+
+type contextKeyURL struct{}
+
+func URLFromContext(ctx context.Context) (arvados.URL, bool) {
+ u, ok := ctx.Value(contextKeyURL{}).(arvados.URL)
+ return u, ok
+}