lib/diagnostics/cmd.go

   1 // Copyright (C) The Arvados Authors. All rights reserved.
   2 //
   3 // SPDX-License-Identifier: AGPL-3.0
   4
   5 package diagnostics
   6
   7 import (
   8         "bytes"
   9         "context"
  10         "flag"
  11         "fmt"
  12         "io"
  13         "io/ioutil"
  14         "net"
  15         "net/http"
  16         "net/url"
  17         "strings"
  18         "time"
  19
  20         "git.arvados.org/arvados.git/sdk/go/arvados"
  21         "git.arvados.org/arvados.git/sdk/go/ctxlog"
  22         "github.com/sirupsen/logrus"
  23 )
  24
  25 type Command struct{}
  26
  27 func (cmd Command) RunCommand(prog string, args []string, stdin io.Reader, stdout, stderr io.Writer) int {
  28         var diag diagnoser
  29         f := flag.NewFlagSet(prog, flag.ContinueOnError)
  30         f.StringVar(&diag.projectName, "project-name", "scratch area for diagnostics", "name of project to find/create in home project and use for temporary/test objects")
  31         f.StringVar(&diag.logLevel, "log-level", "info", "logging level (debug, info, warning, error)")
  32         f.BoolVar(&diag.checkInternal, "internal-client", false, "check that this host is considered an \"internal\" client")
  33         f.BoolVar(&diag.checkExternal, "external-client", false, "check that this host is considered an \"external\" client")
  34         f.IntVar(&diag.priority, "priority", 500, "priority for test container (1..1000, or 0 to skip)")
  35         f.DurationVar(&diag.timeout, "timeout", 10*time.Second, "timeout for http requests")
  36         err := f.Parse(args)
  37         if err == flag.ErrHelp {
  38                 return 0
  39         } else if err != nil {
  40                 fmt.Fprintln(stderr, err)
  41                 return 2
  42         } else if f.NArg() != 0 {
  43                 fmt.Fprintf(stderr, "unrecognized command line arguments: %v\n", f.Args())
  44                 return 2
  45         }
  46         diag.logger = ctxlog.New(stdout, "text", diag.logLevel)
  47         diag.logger.SetFormatter(&logrus.TextFormatter{DisableTimestamp: true, DisableLevelTruncation: true, PadLevelText: true})
  48         diag.runtests()
  49         if len(diag.errors) == 0 {
  50                 diag.logger.Info("--- no errors ---")
  51                 return 0
  52         } else {
  53                 if diag.logger.Level > logrus.ErrorLevel {
  54                         fmt.Fprint(stdout, "\n--- cut here --- error summary ---\n\n")
  55                         for _, e := range diag.errors {
  56                                 diag.logger.Error(e)
  57                         }
  58                 }
  59                 return 1
  60         }
  61 }
  62
  63 type diagnoser struct {
  64         stdout        io.Writer
  65         stderr        io.Writer
  66         logLevel      string
  67         priority      int
  68         projectName   string
  69         checkInternal bool
  70         checkExternal bool
  71         timeout       time.Duration
  72         logger        *logrus.Logger
  73         errors        []string
  74         done          map[int]bool
  75 }
  76
  77 func (diag *diagnoser) debugf(f string, args ...interface{}) {
  78         diag.logger.Debugf("  ... "+f, args...)
  79 }
  80
  81 func (diag *diagnoser) infof(f string, args ...interface{}) {
  82         diag.logger.Infof("  ... "+f, args...)
  83 }
  84
  85 func (diag *diagnoser) warnf(f string, args ...interface{}) {
  86         diag.logger.Warnf("  ... "+f, args...)
  87 }
  88
  89 func (diag *diagnoser) errorf(f string, args ...interface{}) {
  90         diag.logger.Errorf(f, args...)
  91         diag.errors = append(diag.errors, fmt.Sprintf(f, args...))
  92 }
  93
  94 // Run the given func, logging appropriate messages before and after,
  95 // adding timing info, etc.
  96 //
  97 // The id argument should be unique among tests, and shouldn't change
  98 // when other tests are added/removed.
  99 func (diag *diagnoser) dotest(id int, title string, fn func() error) {
 100         if diag.done == nil {
 101                 diag.done = map[int]bool{}
 102         } else if diag.done[id] {
 103                 diag.errorf("(bug) reused test id %d", id)
 104         }
 105         diag.done[id] = true
 106
 107         diag.logger.Infof("%4d: %s", id, title)
 108         t0 := time.Now()
 109         err := fn()
 110         elapsed := fmt.Sprintf("%d ms", time.Now().Sub(t0)/time.Millisecond)
 111         if err != nil {
 112                 diag.errorf("%4d: %s (%s): %s", id, title, elapsed, err)
 113         } else {
 114                 diag.logger.Debugf("%4d: %s (%s): ok", id, title, elapsed)
 115         }
 116 }
 117
 118 func (diag *diagnoser) runtests() {
 119         client := arvados.NewClientFromEnv()
 120
 121         if client.APIHost == "" || client.AuthToken == "" {
 122                 diag.errorf("ARVADOS_API_HOST and ARVADOS_API_TOKEN environment variables are not set -- aborting without running any tests")
 123                 return
 124         }
 125
 126         var dd arvados.DiscoveryDocument
 127         ddpath := "discovery/v1/apis/arvados/v1/rest"
 128         diag.dotest(10, fmt.Sprintf("getting discovery document from https://%s/%s", client.APIHost, ddpath), func() error {
 129                 ctx, cancel := context.WithDeadline(context.Background(), time.Now().Add(diag.timeout))
 130                 defer cancel()
 131                 err := client.RequestAndDecodeContext(ctx, &dd, "GET", ddpath, nil, nil)
 132                 if err != nil {
 133                         return err
 134                 }
 135                 diag.debugf("BlobSignatureTTL = %d", dd.BlobSignatureTTL)
 136                 return nil
 137         })
 138
 139         var cluster arvados.Cluster
 140         cfgpath := "arvados/v1/config"
 141         diag.dotest(20, fmt.Sprintf("getting exported config from https://%s/%s", client.APIHost, cfgpath), func() error {
 142                 ctx, cancel := context.WithDeadline(context.Background(), time.Now().Add(diag.timeout))
 143                 defer cancel()
 144                 err := client.RequestAndDecodeContext(ctx, &cluster, "GET", cfgpath, nil, nil)
 145                 if err != nil {
 146                         return err
 147                 }
 148                 diag.debugf("Collections.BlobSigning = %v", cluster.Collections.BlobSigning)
 149                 return nil
 150         })
 151
 152         var user arvados.User
 153         diag.dotest(30, "getting current user record", func() error {
 154                 ctx, cancel := context.WithDeadline(context.Background(), time.Now().Add(diag.timeout))
 155                 defer cancel()
 156                 err := client.RequestAndDecodeContext(ctx, &user, "GET", "arvados/v1/users/current", nil, nil)
 157                 if err != nil {
 158                         return err
 159                 }
 160                 diag.debugf("user uuid = %s", user.UUID)
 161                 return nil
 162         })
 163
 164         // uncomment to create some spurious errors
 165         // cluster.Services.WebDAVDownload.ExternalURL.Host = "0.0.0.0:9"
 166
 167         // TODO: detect routing errors here, like finding wb2 at the
 168         // wb1 address.
 169         for i, svc := range []*arvados.Service{
 170                 &cluster.Services.Keepproxy,
 171                 &cluster.Services.WebDAV,
 172                 &cluster.Services.WebDAVDownload,
 173                 &cluster.Services.Websocket,
 174                 &cluster.Services.Workbench1,
 175                 &cluster.Services.Workbench2,
 176         } {
 177                 diag.dotest(40+i, fmt.Sprintf("connecting to service endpoint %s", svc.ExternalURL), func() error {
 178                         ctx, cancel := context.WithDeadline(context.Background(), time.Now().Add(diag.timeout))
 179                         defer cancel()
 180                         u := svc.ExternalURL
 181                         if strings.HasPrefix(u.Scheme, "ws") {
 182                                 // We can do a real websocket test elsewhere,
 183                                 // but for now we'll just check the https
 184                                 // connection.
 185                                 u.Scheme = "http" + u.Scheme[2:]
 186                         }
 187                         if svc == &cluster.Services.WebDAV && strings.HasPrefix(u.Host, "*") {
 188                                 u.Host = "d41d8cd98f00b204e9800998ecf8427e-0" + u.Host[1:]
 189                         }
 190                         req, err := http.NewRequestWithContext(ctx, http.MethodGet, u.String(), nil)
 191                         if err != nil {
 192                                 return err
 193                         }
 194                         resp, err := http.DefaultClient.Do(req)
 195                         if err != nil {
 196                                 return err
 197                         }
 198                         resp.Body.Close()
 199                         return nil
 200                 })
 201         }
 202
 203         for i, url := range []string{
 204                 cluster.Services.Controller.ExternalURL.String(),
 205                 cluster.Services.Keepproxy.ExternalURL.String() + "d41d8cd98f00b204e9800998ecf8427e+0",
 206                 cluster.Services.WebDAVDownload.ExternalURL.String(),
 207         } {
 208                 diag.dotest(50+i, fmt.Sprintf("checking CORS headers at %s", url), func() error {
 209                         ctx, cancel := context.WithDeadline(context.Background(), time.Now().Add(diag.timeout))
 210                         defer cancel()
 211                         req, err := http.NewRequestWithContext(ctx, "GET", url, nil)
 212                         if err != nil {
 213                                 return err
 214                         }
 215                         req.Header.Set("Origin", "https://example.com")
 216                         resp, err := http.DefaultClient.Do(req)
 217                         if err != nil {
 218                                 return err
 219                         }
 220                         if hdr := resp.Header.Get("Access-Control-Allow-Origin"); hdr != "*" {
 221                                 return fmt.Errorf("expected \"Access-Control-Allow-Origin: *\", got %q", hdr)
 222                         }
 223                         return nil
 224                 })
 225         }
 226
 227         var keeplist arvados.KeepServiceList
 228         diag.dotest(60, "checking internal/external client detection", func() error {
 229                 ctx, cancel := context.WithDeadline(context.Background(), time.Now().Add(diag.timeout))
 230                 defer cancel()
 231                 err := client.RequestAndDecodeContext(ctx, &keeplist, "GET", "arvados/v1/keep_services/accessible", nil, arvados.ListOptions{Limit: 999999})
 232                 if err != nil {
 233                         return fmt.Errorf("error getting keep services list: %s", err)
 234                 } else if len(keeplist.Items) == 0 {
 235                         return fmt.Errorf("controller did not return any keep services")
 236                 }
 237                 found := map[string]int{}
 238                 for _, ks := range keeplist.Items {
 239                         found[ks.ServiceType]++
 240                 }
 241                 isInternal := found["proxy"] == 0 && len(keeplist.Items) > 0
 242                 isExternal := found["proxy"] > 0 && found["proxy"] == len(keeplist.Items)
 243                 if isExternal {
 244                         diag.debugf("controller returned only proxy services, this host is treated as \"external\"")
 245                 } else if isInternal {
 246                         diag.debugf("controller returned only non-proxy services, this host is treated as \"internal\"")
 247                 }
 248                 if (diag.checkInternal && !isInternal) || (diag.checkExternal && !isExternal) {
 249                         return fmt.Errorf("expecting internal=%v external=%v, but found internal=%v external=%v", diag.checkInternal, diag.checkExternal, isInternal, isExternal)
 250                 }
 251                 return nil
 252         })
 253
 254         for i, ks := range keeplist.Items {
 255                 u := url.URL{
 256                         Scheme: "http",
 257                         Host:   net.JoinHostPort(ks.ServiceHost, fmt.Sprintf("%d", ks.ServicePort)),
 258                         Path:   "/",
 259                 }
 260                 if ks.ServiceSSLFlag {
 261                         u.Scheme = "https"
 262                 }
 263                 diag.dotest(61+i, fmt.Sprintf("reading+writing via keep service at %s", u.String()), func() error {
 264                         ctx, cancel := context.WithDeadline(context.Background(), time.Now().Add(diag.timeout))
 265                         defer cancel()
 266                         req, err := http.NewRequestWithContext(ctx, "PUT", u.String()+"d41d8cd98f00b204e9800998ecf8427e", nil)
 267                         if err != nil {
 268                                 return err
 269                         }
 270                         req.Header.Set("Authorization", "Bearer "+client.AuthToken)
 271                         resp, err := http.DefaultClient.Do(req)
 272                         if err != nil {
 273                                 return err
 274                         }
 275                         defer resp.Body.Close()
 276                         body, err := ioutil.ReadAll(resp.Body)
 277                         if err != nil {
 278                                 return fmt.Errorf("reading response body: %s", err)
 279                         }
 280                         loc := strings.TrimSpace(string(body))
 281                         if !strings.HasPrefix(loc, "d41d8") {
 282                                 return fmt.Errorf("unexpected response from write: %q", body)
 283                         }
 284
 285                         req, err = http.NewRequestWithContext(ctx, "GET", u.String()+loc, nil)
 286                         if err != nil {
 287                                 return err
 288                         }
 289                         req.Header.Set("Authorization", "Bearer "+client.AuthToken)
 290                         resp, err = http.DefaultClient.Do(req)
 291                         if err != nil {
 292                                 return err
 293                         }
 294                         defer resp.Body.Close()
 295                         body, err = ioutil.ReadAll(resp.Body)
 296                         if err != nil {
 297                                 return fmt.Errorf("reading response body: %s", err)
 298                         }
 299                         if len(body) != 0 {
 300                                 return fmt.Errorf("unexpected response from read: %q", body)
 301                         }
 302
 303                         return nil
 304                 })
 305         }
 306
 307         var project arvados.Group
 308         diag.dotest(80, fmt.Sprintf("finding/creating %q project", diag.projectName), func() error {
 309                 ctx, cancel := context.WithDeadline(context.Background(), time.Now().Add(diag.timeout))
 310                 defer cancel()
 311                 var grplist arvados.GroupList
 312                 err := client.RequestAndDecodeContext(ctx, &grplist, "GET", "arvados/v1/groups", nil, arvados.ListOptions{
 313                         Filters: []arvados.Filter{
 314                                 {"name", "=", diag.projectName},
 315                                 {"group_class", "=", "project"},
 316                                 {"owner_uuid", "=", user.UUID}},
 317                         Limit: 999999})
 318                 if err != nil {
 319                         return fmt.Errorf("list groups: %s", err)
 320                 }
 321                 if len(grplist.Items) > 0 {
 322                         project = grplist.Items[0]
 323                         diag.debugf("using existing project, uuid = %s", project.UUID)
 324                         return nil
 325                 }
 326                 diag.debugf("list groups: ok, no results")
 327                 err = client.RequestAndDecodeContext(ctx, &project, "POST", "arvados/v1/groups", nil, map[string]interface{}{"group": map[string]interface{}{
 328                         "name":        diag.projectName,
 329                         "group_class": "project",
 330                 }})
 331                 if err != nil {
 332                         return fmt.Errorf("create project: %s", err)
 333                 }
 334                 diag.debugf("created project, uuid = %s", project.UUID)
 335                 return nil
 336         })
 337
 338         var collection arvados.Collection
 339         diag.dotest(90, "creating temporary collection", func() error {
 340                 if project.UUID == "" {
 341                         return fmt.Errorf("skipping, no project to work in")
 342                 }
 343                 ctx, cancel := context.WithDeadline(context.Background(), time.Now().Add(diag.timeout))
 344                 defer cancel()
 345                 err := client.RequestAndDecodeContext(ctx, &collection, "POST", "arvados/v1/collections", nil, map[string]interface{}{
 346                         "ensure_unique_name": true,
 347                         "collection": map[string]interface{}{
 348                                 "owner_uuid": project.UUID,
 349                                 "name":       "test collection",
 350                                 "trash_at":   time.Now().Add(time.Hour)}})
 351                 if err != nil {
 352                         return err
 353                 }
 354                 diag.debugf("ok, uuid = %s", collection.UUID)
 355                 return nil
 356         })
 357
 358         if collection.UUID != "" {
 359                 defer func() {
 360                         diag.dotest(9990, "deleting temporary collection", func() error {
 361                                 ctx, cancel := context.WithDeadline(context.Background(), time.Now().Add(diag.timeout))
 362                                 defer cancel()
 363                                 return client.RequestAndDecodeContext(ctx, nil, "DELETE", "arvados/v1/collections/"+collection.UUID, nil, nil)
 364                         })
 365                 }()
 366         }
 367
 368         diag.dotest(100, "uploading file via webdav", func() error {
 369                 ctx, cancel := context.WithDeadline(context.Background(), time.Now().Add(diag.timeout))
 370                 defer cancel()
 371                 if collection.UUID == "" {
 372                         return fmt.Errorf("skipping, no test collection")
 373                 }
 374                 req, err := http.NewRequestWithContext(ctx, "PUT", cluster.Services.WebDAVDownload.ExternalURL.String()+"c="+collection.UUID+"/testfile", bytes.NewBufferString("testfiledata"))
 375                 if err != nil {
 376                         return fmt.Errorf("BUG? http.NewRequest: %s", err)
 377                 }
 378                 req.Header.Set("Authorization", "Bearer "+client.AuthToken)
 379                 resp, err := http.DefaultClient.Do(req)
 380                 if err != nil {
 381                         return fmt.Errorf("error performing http request: %s", err)
 382                 }
 383                 resp.Body.Close()
 384                 if resp.StatusCode != http.StatusCreated {
 385                         return fmt.Errorf("status %s", resp.Status)
 386                 }
 387                 diag.debugf("ok, status %s", resp.Status)
 388                 err = client.RequestAndDecodeContext(ctx, &collection, "GET", "arvados/v1/collections/"+collection.UUID, nil, nil)
 389                 if err != nil {
 390                         return fmt.Errorf("get updated collection: %s", err)
 391                 }
 392                 diag.debugf("ok, pdh %s", collection.PortableDataHash)
 393                 return nil
 394         })
 395
 396         davurl := cluster.Services.WebDAV.ExternalURL
 397         diag.dotest(110, fmt.Sprintf("checking WebDAV ExternalURL wildcard (%s)", davurl), func() error {
 398                 if davurl.Host == "" {
 399                         return fmt.Errorf("host missing - content previews will not work")
 400                 }
 401                 if !strings.HasPrefix(davurl.Host, "*--") && !strings.HasPrefix(davurl.Host, "*.") && !cluster.Collections.TrustAllContent {
 402                         diag.warnf("WebDAV ExternalURL has no leading wildcard and TrustAllContent==false - content previews will not work")
 403                 }
 404                 return nil
 405         })
 406
 407         for i, trial := range []struct {
 408                 needcoll bool
 409                 status   int
 410                 fileurl  string
 411         }{
 412                 {false, http.StatusNotFound, strings.Replace(davurl.String(), "*", "d41d8cd98f00b204e9800998ecf8427e-0", 1) + "foo"},
 413                 {false, http.StatusNotFound, strings.Replace(davurl.String(), "*", "d41d8cd98f00b204e9800998ecf8427e-0", 1) + "testfile"},
 414                 {false, http.StatusNotFound, cluster.Services.WebDAVDownload.ExternalURL.String() + "c=d41d8cd98f00b204e9800998ecf8427e+0/_/foo"},
 415                 {false, http.StatusNotFound, cluster.Services.WebDAVDownload.ExternalURL.String() + "c=d41d8cd98f00b204e9800998ecf8427e+0/_/testfile"},
 416                 {true, http.StatusOK, strings.Replace(davurl.String(), "*", strings.Replace(collection.PortableDataHash, "+", "-", -1), 1) + "testfile"},
 417                 {true, http.StatusOK, cluster.Services.WebDAVDownload.ExternalURL.String() + "c=" + collection.UUID + "/_/testfile"},
 418         } {
 419                 diag.dotest(120+i, fmt.Sprintf("downloading from webdav (%s)", trial.fileurl), func() error {
 420                         ctx, cancel := context.WithDeadline(context.Background(), time.Now().Add(diag.timeout))
 421                         defer cancel()
 422                         if trial.needcoll && collection.UUID == "" {
 423                                 return fmt.Errorf("skipping, no test collection")
 424                         }
 425                         req, err := http.NewRequestWithContext(ctx, "GET", trial.fileurl, nil)
 426                         if err != nil {
 427                                 return err
 428                         }
 429                         req.Header.Set("Authorization", "Bearer "+client.AuthToken)
 430                         resp, err := http.DefaultClient.Do(req)
 431                         if err != nil {
 432                                 return err
 433                         }
 434                         defer resp.Body.Close()
 435                         body, err := ioutil.ReadAll(resp.Body)
 436                         if err != nil {
 437                                 return fmt.Errorf("reading response: %s", err)
 438                         }
 439                         if resp.StatusCode != trial.status {
 440                                 return fmt.Errorf("unexpected response status: %s", resp.Status)
 441                         }
 442                         if trial.status == http.StatusOK && string(body) != "testfiledata" {
 443                                 return fmt.Errorf("unexpected response content: %q", body)
 444                         }
 445                         return nil
 446                 })
 447         }
 448
 449         var vm arvados.VirtualMachine
 450         diag.dotest(130, "getting list of virtual machines", func() error {
 451                 ctx, cancel := context.WithDeadline(context.Background(), time.Now().Add(diag.timeout))
 452                 defer cancel()
 453                 var vmlist arvados.VirtualMachineList
 454                 err := client.RequestAndDecodeContext(ctx, &vmlist, "GET", "arvados/v1/virtual_machines", nil, arvados.ListOptions{Limit: 999999})
 455                 if err != nil {
 456                         return err
 457                 }
 458                 if len(vmlist.Items) < 1 {
 459                         return fmt.Errorf("no VMs found")
 460                 }
 461                 vm = vmlist.Items[0]
 462                 return nil
 463         })
 464
 465         diag.dotest(140, "getting workbench1 webshell page", func() error {
 466                 ctx, cancel := context.WithDeadline(context.Background(), time.Now().Add(diag.timeout))
 467                 defer cancel()
 468                 if vm.UUID == "" {
 469                         return fmt.Errorf("skipping, no vm available")
 470                 }
 471                 webshelltermurl := cluster.Services.Workbench1.ExternalURL.String() + "virtual_machines/" + vm.UUID + "/webshell/testusername"
 472                 diag.debugf("url %s", webshelltermurl)
 473                 req, err := http.NewRequestWithContext(ctx, "GET", webshelltermurl, nil)
 474                 if err != nil {
 475                         return err
 476                 }
 477                 req.Header.Set("Authorization", "Bearer "+client.AuthToken)
 478                 resp, err := http.DefaultClient.Do(req)
 479                 if err != nil {
 480                         return err
 481                 }
 482                 defer resp.Body.Close()
 483                 body, err := ioutil.ReadAll(resp.Body)
 484                 if err != nil {
 485                         return fmt.Errorf("reading response: %s", err)
 486                 }
 487                 if resp.StatusCode != http.StatusOK {
 488                         return fmt.Errorf("unexpected response status: %s %q", resp.Status, body)
 489                 }
 490                 return nil
 491         })
 492
 493         diag.dotest(150, "connecting to webshell service", func() error {
 494                 ctx, cancel := context.WithDeadline(context.Background(), time.Now().Add(diag.timeout))
 495                 defer cancel()
 496                 if vm.UUID == "" {
 497                         return fmt.Errorf("skipping, no vm available")
 498                 }
 499                 u := cluster.Services.WebShell.ExternalURL
 500                 webshellurl := u.String() + vm.Hostname + "?"
 501                 if strings.HasPrefix(u.Host, "*") {
 502                         u.Host = vm.Hostname + u.Host[1:]
 503                         webshellurl = u.String() + "?"
 504                 }
 505                 diag.debugf("url %s", webshellurl)
 506                 req, err := http.NewRequestWithContext(ctx, "POST", webshellurl, bytes.NewBufferString(url.Values{
 507                         "width":   {"80"},
 508                         "height":  {"25"},
 509                         "session": {"xyzzy"},
 510                         "rooturl": {webshellurl},
 511                 }.Encode()))
 512                 if err != nil {
 513                         return err
 514                 }
 515                 req.Header.Set("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8")
 516                 resp, err := http.DefaultClient.Do(req)
 517                 if err != nil {
 518                         return err
 519                 }
 520                 defer resp.Body.Close()
 521                 diag.debugf("response status %s", resp.Status)
 522                 body, err := ioutil.ReadAll(resp.Body)
 523                 if err != nil {
 524                         return fmt.Errorf("reading response: %s", err)
 525                 }
 526                 diag.debugf("response body %q", body)
 527                 // We don't speak the protocol, so we get a 400 error
 528                 // from the webshell server even if everything is
 529                 // OK. Anything else (404, 502, ???) indicates a
 530                 // problem.
 531                 if resp.StatusCode != http.StatusBadRequest {
 532                         return fmt.Errorf("unexpected response status: %s, %q", resp.Status, body)
 533                 }
 534                 return nil
 535         })
 536
 537         diag.dotest(160, "running a container", func() error {
 538                 if diag.priority < 1 {
 539                         diag.infof("skipping (use priority > 0 if you want to run a container)")
 540                         return nil
 541                 }
 542                 if project.UUID == "" {
 543                         return fmt.Errorf("skipping, no project to work in")
 544                 }
 545
 546                 var cr arvados.ContainerRequest
 547                 ctx, cancel := context.WithDeadline(context.Background(), time.Now().Add(diag.timeout))
 548                 defer cancel()
 549
 550                 timestamp := time.Now().Format(time.RFC3339)
 551                 err := client.RequestAndDecodeContext(ctx, &cr, "POST", "arvados/v1/container_requests", nil, map[string]interface{}{"container_request": map[string]interface{}{
 552                         "owner_uuid":      project.UUID,
 553                         "name":            fmt.Sprintf("diagnostics container request %s", timestamp),
 554                         "container_image": "arvados/jobs",
 555                         "command":         []string{"echo", timestamp},
 556                         "use_existing":    false,
 557                         "output_path":     "/mnt/output",
 558                         "output_name":     fmt.Sprintf("diagnostics output %s", timestamp),
 559                         "priority":        diag.priority,
 560                         "state":           arvados.ContainerRequestStateCommitted,
 561                         "mounts": map[string]map[string]interface{}{
 562                                 "/mnt/output": {
 563                                         "kind":     "collection",
 564                                         "writable": true,
 565                                 },
 566                         },
 567                         "runtime_constraints": arvados.RuntimeConstraints{
 568                                 VCPUs:        1,
 569                                 RAM:          1 << 26,
 570                                 KeepCacheRAM: 1 << 26,
 571                         },
 572                 }})
 573                 if err != nil {
 574                         return err
 575                 }
 576                 diag.debugf("container request uuid = %s", cr.UUID)
 577                 diag.debugf("container uuid = %s", cr.ContainerUUID)
 578
 579                 timeout := 10 * time.Minute
 580                 diag.infof("container request submitted, waiting up to %v for container to run", arvados.Duration(timeout))
 581                 ctx, cancel = context.WithDeadline(context.Background(), time.Now().Add(timeout))
 582                 defer cancel()
 583
 584                 var c arvados.Container
 585                 for ; cr.State != arvados.ContainerRequestStateFinal; time.Sleep(2 * time.Second) {
 586                         ctx, cancel := context.WithDeadline(ctx, time.Now().Add(diag.timeout))
 587                         defer cancel()
 588
 589                         crStateWas := cr.State
 590                         err := client.RequestAndDecodeContext(ctx, &cr, "GET", "arvados/v1/container_requests/"+cr.UUID, nil, nil)
 591                         if err != nil {
 592                                 return err
 593                         }
 594                         if cr.State != crStateWas {
 595                                 diag.debugf("container request state = %s", cr.State)
 596                         }
 597
 598                         cStateWas := c.State
 599                         err = client.RequestAndDecodeContext(ctx, &c, "GET", "arvados/v1/containers/"+cr.ContainerUUID, nil, nil)
 600                         if err != nil {
 601                                 return err
 602                         }
 603                         if c.State != cStateWas {
 604                                 diag.debugf("container state = %s", c.State)
 605                         }
 606                 }
 607
 608                 if c.State != arvados.ContainerStateComplete {
 609                         return fmt.Errorf("container request %s is final but container %s did not complete: container state = %q", cr.UUID, cr.ContainerUUID, c.State)
 610                 } else if c.ExitCode != 0 {
 611                         return fmt.Errorf("container exited %d", c.ExitCode)
 612                 }
 613                 return nil
 614         })
 615 }