lib/install/deps.go

   1 // Copyright (C) The Arvados Authors. All rights reserved.
   2 //
   3 // SPDX-License-Identifier: AGPL-3.0
   4
   5 package install
   6
   7 import (
   8         "bufio"
   9         "bytes"
  10         "context"
  11         "errors"
  12         "flag"
  13         "fmt"
  14         "io"
  15         "os"
  16         "os/exec"
  17         "os/user"
  18         "path/filepath"
  19         "strconv"
  20         "strings"
  21         "syscall"
  22         "time"
  23
  24         "git.arvados.org/arvados.git/lib/cmd"
  25         "git.arvados.org/arvados.git/sdk/go/ctxlog"
  26         "github.com/lib/pq"
  27 )
  28
  29 var Command cmd.Handler = &installCommand{}
  30
  31 const devtestDatabasePassword = "insecure_arvados_test"
  32
  33 type installCommand struct {
  34         ClusterType    string
  35         SourcePath     string
  36         PackageVersion string
  37 }
  38
  39 func (inst *installCommand) RunCommand(prog string, args []string, stdin io.Reader, stdout, stderr io.Writer) int {
  40         logger := ctxlog.New(stderr, "text", "info")
  41         ctx := ctxlog.Context(context.Background(), logger)
  42         ctx, cancel := context.WithCancel(ctx)
  43         defer cancel()
  44
  45         var err error
  46         defer func() {
  47                 if err != nil {
  48                         logger.WithError(err).Info("exiting")
  49                 }
  50         }()
  51
  52         flags := flag.NewFlagSet(prog, flag.ContinueOnError)
  53         flags.SetOutput(stderr)
  54         versionFlag := flags.Bool("version", false, "Write version information to stdout and exit 0")
  55         flags.StringVar(&inst.ClusterType, "type", "production", "cluster `type`: development, test, production, or package")
  56         flags.StringVar(&inst.SourcePath, "source", "/arvados", "source tree location (required for -type=package)")
  57         flags.StringVar(&inst.PackageVersion, "package-version", "0.0.0", "version string to embed in executable files")
  58         err = flags.Parse(args)
  59         if err == flag.ErrHelp {
  60                 err = nil
  61                 return 0
  62         } else if err != nil {
  63                 return 2
  64         } else if *versionFlag {
  65                 return cmd.Version.RunCommand(prog, args, stdin, stdout, stderr)
  66         } else if len(flags.Args()) > 0 {
  67                 err = fmt.Errorf("unrecognized command line arguments: %v", flags.Args())
  68                 return 2
  69         }
  70
  71         var dev, test, prod, pkg bool
  72         switch inst.ClusterType {
  73         case "development":
  74                 dev = true
  75         case "test":
  76                 test = true
  77         case "production":
  78                 prod = true
  79         case "package":
  80                 pkg = true
  81         default:
  82                 err = fmt.Errorf("invalid cluster type %q (must be 'development', 'test', 'production', or 'package')", inst.ClusterType)
  83                 return 2
  84         }
  85
  86         if prod {
  87                 err = errors.New("production install is not yet implemented")
  88                 return 1
  89         }
  90
  91         osv, err := identifyOS()
  92         if err != nil {
  93                 return 1
  94         }
  95
  96         listdir, err := os.Open("/var/lib/apt/lists")
  97         if err != nil {
  98                 logger.Warnf("error while checking whether to run apt-get update: %s", err)
  99         } else if names, _ := listdir.Readdirnames(1); len(names) == 0 {
 100                 // Special case for a base docker image where the
 101                 // package cache has been deleted and all "apt-get
 102                 // install" commands will fail unless we fetch repos.
 103                 cmd := exec.CommandContext(ctx, "apt-get", "update")
 104                 cmd.Stdout = stdout
 105                 cmd.Stderr = stderr
 106                 err = cmd.Run()
 107                 if err != nil {
 108                         return 1
 109                 }
 110         }
 111
 112         pkgs := prodpkgs(osv)
 113
 114         if pkg {
 115                 pkgs = append(pkgs,
 116                         "dpkg-dev",
 117                         "rsync",
 118                 )
 119         }
 120
 121         if dev || test || pkg {
 122                 pkgs = append(pkgs,
 123                         "bsdmainutils",
 124                         "build-essential",
 125                         "cadaver",
 126                         "cython",
 127                         "daemontools", // lib/boot uses setuidgid to drop privileges when running as root
 128                         "default-jdk-headless",
 129                         "default-jre-headless",
 130                         "gettext",
 131                         "iceweasel",
 132                         "libattr1-dev",
 133                         "libcrypt-ssleay-perl",
 134                         "libfuse-dev",
 135                         "libgnutls28-dev",
 136                         "libjson-perl",
 137                         "libpam-dev",
 138                         "libpcre3-dev",
 139                         "libpython2.7-dev",
 140                         "libreadline-dev",
 141                         "libssl-dev",
 142                         "libwww-perl",
 143                         "libxml2-dev",
 144                         "libxslt1-dev",
 145                         "linkchecker",
 146                         "lsof",
 147                         "net-tools",
 148                         "pandoc",
 149                         "perl-modules",
 150                         "pkg-config",
 151                         "postgresql",
 152                         "postgresql-contrib",
 153                         "python3-dev",
 154                         "python-epydoc",
 155                         "r-base",
 156                         "r-cran-testthat",
 157                         "sudo",
 158                         "virtualenv",
 159                         "wget",
 160                         "xvfb",
 161                 )
 162                 switch {
 163                 case osv.Debian && osv.Major >= 10:
 164                         pkgs = append(pkgs, "libcurl4")
 165                 default:
 166                         pkgs = append(pkgs, "libcurl3")
 167                 }
 168                 cmd := exec.CommandContext(ctx, "apt-get", "install", "--yes", "--no-install-recommends")
 169                 cmd.Args = append(cmd.Args, pkgs...)
 170                 cmd.Env = append(os.Environ(), "DEBIAN_FRONTEND=noninteractive")
 171                 cmd.Stdout = stdout
 172                 cmd.Stderr = stderr
 173                 err = cmd.Run()
 174                 if err != nil {
 175                         return 1
 176                 }
 177         }
 178
 179         os.Mkdir("/var/lib/arvados", 0755)
 180         os.Mkdir("/var/lib/arvados/tmp", 0700)
 181         if prod || pkg {
 182                 os.Mkdir("/var/lib/arvados/wwwtmp", 0700)
 183                 u, er := user.Lookup("www-data")
 184                 if er != nil {
 185                         err = fmt.Errorf("user.Lookup(%q): %w", "www-data", er)
 186                         return 1
 187                 }
 188                 uid, _ := strconv.Atoi(u.Uid)
 189                 gid, _ := strconv.Atoi(u.Gid)
 190                 err = os.Chown("/var/lib/arvados/wwwtmp", uid, gid)
 191                 if err != nil {
 192                         return 1
 193                 }
 194         }
 195         rubyversion := "2.5.7"
 196         if haverubyversion, err := exec.Command("/var/lib/arvados/bin/ruby", "-v").CombinedOutput(); err == nil && bytes.HasPrefix(haverubyversion, []byte("ruby "+rubyversion)) {
 197                 logger.Print("ruby " + rubyversion + " already installed")
 198         } else {
 199                 err = runBash(`
 200 tmp=/var/lib/arvados/tmp/ruby-`+rubyversion+`
 201 trap "rm -r ${tmp}" ERR
 202 wget --progress=dot:giga -O- https://cache.ruby-lang.org/pub/ruby/2.5/ruby-`+rubyversion+`.tar.gz | tar -C /var/lib/arvados/tmp -xzf -
 203 cd ${tmp}
 204 ./configure --disable-install-doc --prefix /var/lib/arvados
 205 make -j8
 206 make install
 207 /var/lib/arvados/bin/gem install bundler --no-ri --no-rdoc
 208 # "gem update --system" can be removed when we use ruby ≥2.6.3: https://bundler.io/blog/2019/05/14/solutions-for-cant-find-gem-bundler-with-executable-bundle.html
 209 /var/lib/arvados/bin/gem update --system --no-ri --no-rdoc
 210 rm -r ${tmp}
 211 `, stdout, stderr)
 212                 if err != nil {
 213                         return 1
 214                 }
 215         }
 216
 217         if !prod {
 218                 goversion := "1.14"
 219                 if havegoversion, err := exec.Command("/usr/local/bin/go", "version").CombinedOutput(); err == nil && bytes.HasPrefix(havegoversion, []byte("go version go"+goversion+" ")) {
 220                         logger.Print("go " + goversion + " already installed")
 221                 } else {
 222                         err = runBash(`
 223 cd /tmp
 224 wget --progress=dot:giga -O- https://storage.googleapis.com/golang/go`+goversion+`.linux-amd64.tar.gz | tar -C /var/lib/arvados -xzf -
 225 ln -sf /var/lib/arvados/go/bin/* /usr/local/bin/
 226 `, stdout, stderr)
 227                         if err != nil {
 228                                 return 1
 229                         }
 230                 }
 231         }
 232
 233         if !prod && !pkg {
 234                 pjsversion := "1.9.8"
 235                 if havepjsversion, err := exec.Command("/usr/local/bin/phantomjs", "--version").CombinedOutput(); err == nil && string(havepjsversion) == "1.9.8\n" {
 236                         logger.Print("phantomjs " + pjsversion + " already installed")
 237                 } else {
 238                         err = runBash(`
 239 PJS=phantomjs-`+pjsversion+`-linux-x86_64
 240 wget --progress=dot:giga -O- https://bitbucket.org/ariya/phantomjs/downloads/$PJS.tar.bz2 | tar -C /var/lib/arvados -xjf -
 241 ln -sf /var/lib/arvados/$PJS/bin/phantomjs /usr/local/bin/
 242 `, stdout, stderr)
 243                         if err != nil {
 244                                 return 1
 245                         }
 246                 }
 247
 248                 geckoversion := "0.24.0"
 249                 if havegeckoversion, err := exec.Command("/usr/local/bin/geckodriver", "--version").CombinedOutput(); err == nil && strings.Contains(string(havegeckoversion), " "+geckoversion+" ") {
 250                         logger.Print("geckodriver " + geckoversion + " already installed")
 251                 } else {
 252                         err = runBash(`
 253 GD=v`+geckoversion+`
 254 wget --progress=dot:giga -O- https://github.com/mozilla/geckodriver/releases/download/$GD/geckodriver-$GD-linux64.tar.gz | tar -C /var/lib/arvados/bin -xzf - geckodriver
 255 ln -sf /var/lib/arvados/bin/geckodriver /usr/local/bin/
 256 `, stdout, stderr)
 257                         if err != nil {
 258                                 return 1
 259                         }
 260                 }
 261
 262                 nodejsversion := "v8.15.1"
 263                 if havenodejsversion, err := exec.Command("/usr/local/bin/node", "--version").CombinedOutput(); err == nil && string(havenodejsversion) == nodejsversion+"\n" {
 264                         logger.Print("nodejs " + nodejsversion + " already installed")
 265                 } else {
 266                         err = runBash(`
 267 NJS=`+nodejsversion+`
 268 wget --progress=dot:giga -O- https://nodejs.org/dist/${NJS}/node-${NJS}-linux-x64.tar.xz | sudo tar -C /var/lib/arvados -xJf -
 269 ln -sf /var/lib/arvados/node-${NJS}-linux-x64/bin/{node,npm} /usr/local/bin/
 270 `, stdout, stderr)
 271                         if err != nil {
 272                                 return 1
 273                         }
 274                 }
 275
 276                 gradleversion := "5.3.1"
 277                 if havegradleversion, err := exec.Command("/usr/local/bin/gradle", "--version").CombinedOutput(); err == nil && strings.Contains(string(havegradleversion), "Gradle "+gradleversion+"\n") {
 278                         logger.Print("gradle " + gradleversion + " already installed")
 279                 } else {
 280                         err = runBash(`
 281 G=`+gradleversion+`
 282 zip=/var/lib/arvados/tmp/gradle-${G}-bin.zip
 283 trap "rm ${zip}" ERR
 284 wget --progress=dot:giga -O${zip} https://services.gradle.org/distributions/gradle-${G}-bin.zip
 285 unzip -o -d /var/lib/arvados ${zip}
 286 ln -sf /var/lib/arvados/gradle-${G}/bin/gradle /usr/local/bin/
 287 rm ${zip}
 288 `, stdout, stderr)
 289                         if err != nil {
 290                                 return 1
 291                         }
 292                 }
 293
 294                 // The entry in /etc/locale.gen is "en_US.UTF-8"; once
 295                 // it's installed, locale -a reports it as
 296                 // "en_US.utf8".
 297                 wantlocale := "en_US.UTF-8"
 298                 if havelocales, err := exec.Command("locale", "-a").CombinedOutput(); err == nil && bytes.Contains(havelocales, []byte(strings.Replace(wantlocale+"\n", "UTF-", "utf", 1))) {
 299                         logger.Print("locale " + wantlocale + " already installed")
 300                 } else {
 301                         err = runBash(`sed -i 's/^# *\(`+wantlocale+`\)/\1/' /etc/locale.gen && locale-gen`, stdout, stderr)
 302                         if err != nil {
 303                                 return 1
 304                         }
 305                 }
 306
 307                 var pgc struct {
 308                         Version       string
 309                         Cluster       string
 310                         Port          int
 311                         Status        string
 312                         Owner         string
 313                         DataDirectory string
 314                         LogFile       string
 315                 }
 316                 if pg_lsclusters, err2 := exec.Command("pg_lsclusters", "--no-header").CombinedOutput(); err2 != nil {
 317                         err = fmt.Errorf("pg_lsclusters: %s", err2)
 318                         return 1
 319                 } else if pgclusters := strings.Split(strings.TrimSpace(string(pg_lsclusters)), "\n"); len(pgclusters) != 1 {
 320                         logger.Warnf("pg_lsclusters returned %d postgresql clusters -- skipping postgresql initdb/startup, hope that's ok", len(pgclusters))
 321                 } else if _, err = fmt.Sscanf(pgclusters[0], "%s %s %d %s %s %s %s", &pgc.Version, &pgc.Cluster, &pgc.Port, &pgc.Status, &pgc.Owner, &pgc.DataDirectory, &pgc.LogFile); err != nil {
 322                         err = fmt.Errorf("error parsing pg_lsclusters output: %s", err)
 323                         return 1
 324                 } else if pgc.Status == "online" {
 325                         logger.Infof("postgresql cluster %s-%s is online", pgc.Version, pgc.Cluster)
 326                 } else {
 327                         logger.Infof("postgresql cluster %s-%s is %s; trying to start", pgc.Version, pgc.Cluster, pgc.Status)
 328                         cmd := exec.Command("pg_ctlcluster", "--foreground", pgc.Version, pgc.Cluster, "start")
 329                         cmd.Stdout = stdout
 330                         cmd.Stderr = stderr
 331                         err = cmd.Start()
 332                         if err != nil {
 333                                 return 1
 334                         }
 335                         defer func() {
 336                                 cmd.Process.Signal(syscall.SIGTERM)
 337                                 logger.Info("sent SIGTERM; waiting for postgres to shut down")
 338                                 cmd.Wait()
 339                         }()
 340                         err = waitPostgreSQLReady()
 341                         if err != nil {
 342                                 return 1
 343                         }
 344                 }
 345
 346                 if os.Getpid() == 1 {
 347                         // We are the init process (presumably in a
 348                         // docker container) so although postgresql is
 349                         // installed, it's not running, and initdb
 350                         // might never have been run.
 351                 }
 352
 353                 var needcoll []string
 354                 // If the en_US.UTF-8 locale wasn't installed when
 355                 // postgresql initdb ran, it needs to be added
 356                 // explicitly before we can use it in our test suite.
 357                 for _, collname := range []string{"en_US", "en_US.UTF-8"} {
 358                         cmd := exec.Command("sudo", "-u", "postgres", "psql", "-t", "-c", "SELECT 1 FROM pg_catalog.pg_collation WHERE collname='"+collname+"' AND collcollate IN ('en_US.UTF-8', 'en_US.utf8')")
 359                         cmd.Dir = "/"
 360                         out, err2 := cmd.CombinedOutput()
 361                         if err != nil {
 362                                 err = fmt.Errorf("error while checking postgresql collations: %s", err2)
 363                                 return 1
 364                         }
 365                         if strings.Contains(string(out), "1") {
 366                                 logger.Infof("postgresql supports collation %s", collname)
 367                         } else {
 368                                 needcoll = append(needcoll, collname)
 369                         }
 370                 }
 371                 if len(needcoll) > 0 && os.Getpid() != 1 {
 372                         // In order for the CREATE COLLATION statement
 373                         // below to work, the locale must have existed
 374                         // when PostgreSQL started up. If we're
 375                         // running as init, we must have started
 376                         // PostgreSQL ourselves after installing the
 377                         // locales. Otherwise, it might need a
 378                         // restart, so we attempt to restart it with
 379                         // systemd.
 380                         if err = runBash(`sudo systemctl restart postgresql`, stdout, stderr); err != nil {
 381                                 logger.Warn("`systemctl restart postgresql` failed; hoping postgresql does not need to be restarted")
 382                         } else if err = waitPostgreSQLReady(); err != nil {
 383                                 return 1
 384                         }
 385                 }
 386                 for _, collname := range needcoll {
 387                         cmd := exec.Command("sudo", "-u", "postgres", "psql", "-c", "CREATE COLLATION \""+collname+"\" (LOCALE = \"en_US.UTF-8\")")
 388                         cmd.Stdout = stdout
 389                         cmd.Stderr = stderr
 390                         cmd.Dir = "/"
 391                         err = cmd.Run()
 392                         if err != nil {
 393                                 err = fmt.Errorf("error adding postgresql collation %s: %s", collname, err)
 394                                 return 1
 395                         }
 396                 }
 397
 398                 withstuff := "WITH LOGIN SUPERUSER ENCRYPTED PASSWORD " + pq.QuoteLiteral(devtestDatabasePassword)
 399                 cmd := exec.Command("sudo", "-u", "postgres", "psql", "-c", "ALTER ROLE arvados "+withstuff)
 400                 cmd.Dir = "/"
 401                 if err := cmd.Run(); err == nil {
 402                         logger.Print("arvados role exists; superuser privileges added, password updated")
 403                 } else {
 404                         cmd := exec.Command("sudo", "-u", "postgres", "psql", "-c", "CREATE ROLE arvados "+withstuff)
 405                         cmd.Dir = "/"
 406                         cmd.Stdout = stdout
 407                         cmd.Stderr = stderr
 408                         err = cmd.Run()
 409                         if err != nil {
 410                                 return 1
 411                         }
 412                 }
 413         }
 414
 415         if pkg {
 416                 // Install Rails apps to /var/lib/arvados/{railsapi,workbench1}/
 417                 for dstdir, srcdir := range map[string]string{
 418                         "railsapi":   "services/api",
 419                         "workbench1": "apps/workbench",
 420                 } {
 421                         fmt.Fprintf(stderr, "building %s...\n", srcdir)
 422                         cmd := exec.Command("rsync", "-a", "--no-owner", "--delete-after", "--exclude", "/tmp", "--exclude", "/log", "--exclude", "/vendor", "./", "/var/lib/arvados/"+dstdir+"/")
 423                         cmd.Dir = filepath.Join(inst.SourcePath, srcdir)
 424                         cmd.Stdout = stdout
 425                         cmd.Stderr = stderr
 426                         err = cmd.Run()
 427                         if err != nil {
 428                                 return 1
 429                         }
 430                         for _, cmdline := range [][]string{
 431                                 {"mkdir", "-p", "log", "tmp", ".bundle", "/var/www/.gem", "/var/www/.passenger"},
 432                                 {"touch", "log/production.log"},
 433                                 {"chown", "-R", "--from=root", "www-data:www-data", "/var/www/.gem", "/var/www/.passenger", "log", "tmp", ".bundle", "Gemfile.lock", "config.ru", "config/environment.rb"},
 434                                 {"sudo", "-u", "www-data", "/var/lib/arvados/bin/gem", "install", "--user", "--conservative", "--no-document", "bundler:1.16.6", "bundler:1.17.3", "bundler:2.0.2"},
 435                                 {"sudo", "-u", "www-data", "/var/lib/arvados/bin/bundle", "install", "--deployment", "--jobs", "8", "--path", "/var/www/.gem"},
 436                                 {"sudo", "-u", "www-data", "/var/lib/arvados/bin/bundle", "exec", "passenger-config", "build-native-support"},
 437                                 {"sudo", "-u", "www-data", "/var/lib/arvados/bin/bundle", "exec", "passenger-config", "install-standalone-runtime"},
 438                         } {
 439                                 cmd = exec.Command(cmdline[0], cmdline[1:]...)
 440                                 cmd.Env = append([]string{}, os.Environ()...)
 441                                 cmd.Dir = "/var/lib/arvados/" + dstdir
 442                                 cmd.Stdout = stdout
 443                                 cmd.Stderr = stderr
 444                                 fmt.Fprintf(stderr, "... %s\n", cmd.Args)
 445                                 err = cmd.Run()
 446                                 if err != nil {
 447                                         return 1
 448                                 }
 449                         }
 450                         cmd = exec.Command("sudo", "-u", "www-data", "/var/lib/arvados/bin/bundle", "exec", "passenger-config", "validate-install")
 451                         cmd.Dir = "/var/lib/arvados/" + dstdir
 452                         cmd.Stdout = stdout
 453                         cmd.Stderr = stderr
 454                         err = cmd.Run()
 455                         if err != nil && !strings.Contains(err.Error(), "exit status 2") {
 456                                 // Exit code 2 indicates there were warnings (like
 457                                 // "other passenger installations have been detected",
 458                                 // which we can't expect to avoid) but no errors.
 459                                 // Other non-zero exit codes (1, 9) indicate errors.
 460                                 return 1
 461                         }
 462                 }
 463
 464                 // Install Go programs to /var/lib/arvados/bin/
 465                 for _, srcdir := range []string{
 466                         "cmd/arvados-client",
 467                         "cmd/arvados-server",
 468                         "services/arv-git-httpd",
 469                         "services/crunch-dispatch-local",
 470                         "services/crunch-dispatch-slurm",
 471                         "services/health",
 472                         "services/keep-balance",
 473                         "services/keep-web",
 474                         "services/keepproxy",
 475                         "services/keepstore",
 476                         "services/ws",
 477                 } {
 478                         fmt.Fprintf(stderr, "building %s...\n", srcdir)
 479                         cmd := exec.Command("go", "install", "-ldflags", "-X git.arvados.org/arvados.git/lib/cmd.version="+inst.PackageVersion+" -X main.version="+inst.PackageVersion)
 480                         cmd.Env = append([]string{"GOBIN=/var/lib/arvados/bin"}, os.Environ()...)
 481                         cmd.Dir = filepath.Join(inst.SourcePath, srcdir)
 482                         cmd.Stdout = stdout
 483                         cmd.Stderr = stderr
 484                         err = cmd.Run()
 485                         if err != nil {
 486                                 return 1
 487                         }
 488                 }
 489
 490                 // Copy assets from source tree to /var/lib/arvados/share
 491                 cmd := exec.Command("install", "-v", "-t", "/var/lib/arvados/share", filepath.Join(inst.SourcePath, "sdk/python/tests/nginx.conf"))
 492                 cmd.Stdout = stdout
 493                 cmd.Stderr = stderr
 494                 err = cmd.Run()
 495                 if err != nil {
 496                         return 1
 497                 }
 498         }
 499
 500         return 0
 501 }
 502
 503 type osversion struct {
 504         Debian bool
 505         Ubuntu bool
 506         Centos bool
 507         Major  int
 508 }
 509
 510 func identifyOS() (osversion, error) {
 511         var osv osversion
 512         f, err := os.Open("/etc/os-release")
 513         if err != nil {
 514                 return osv, err
 515         }
 516         defer f.Close()
 517
 518         kv := map[string]string{}
 519         scanner := bufio.NewScanner(f)
 520         for scanner.Scan() {
 521                 line := strings.TrimSpace(scanner.Text())
 522                 if strings.HasPrefix(line, "#") {
 523                         continue
 524                 }
 525                 toks := strings.SplitN(line, "=", 2)
 526                 if len(toks) != 2 {
 527                         return osv, fmt.Errorf("invalid line in /etc/os-release: %q", line)
 528                 }
 529                 k := toks[0]
 530                 v := strings.Trim(toks[1], `"`)
 531                 if v == toks[1] {
 532                         v = strings.Trim(v, `'`)
 533                 }
 534                 kv[k] = v
 535         }
 536         if err = scanner.Err(); err != nil {
 537                 return osv, err
 538         }
 539         switch kv["ID"] {
 540         case "ubuntu":
 541                 osv.Ubuntu = true
 542         case "debian":
 543                 osv.Debian = true
 544         case "centos":
 545                 osv.Centos = true
 546         default:
 547                 return osv, fmt.Errorf("unsupported ID in /etc/os-release: %q", kv["ID"])
 548         }
 549         vstr := kv["VERSION_ID"]
 550         if i := strings.Index(vstr, "."); i > 0 {
 551                 vstr = vstr[:i]
 552         }
 553         osv.Major, err = strconv.Atoi(vstr)
 554         if err != nil {
 555                 return osv, fmt.Errorf("incomprehensible VERSION_ID in /etc/os-release: %q", kv["VERSION_ID"])
 556         }
 557         return osv, nil
 558 }
 559
 560 func waitPostgreSQLReady() error {
 561         for deadline := time.Now().Add(10 * time.Second); ; {
 562                 output, err := exec.Command("pg_isready").CombinedOutput()
 563                 if err == nil {
 564                         return nil
 565                 } else if time.Now().After(deadline) {
 566                         return fmt.Errorf("timed out waiting for pg_isready (%q)", output)
 567                 } else {
 568                         time.Sleep(time.Second)
 569                 }
 570         }
 571 }
 572
 573 func runBash(script string, stdout, stderr io.Writer) error {
 574         cmd := exec.Command("bash", "-")
 575         cmd.Stdin = bytes.NewBufferString("set -ex -o pipefail\n" + script)
 576         cmd.Stdout = stdout
 577         cmd.Stderr = stderr
 578         return cmd.Run()
 579 }
 580
 581 func prodpkgs(osv osversion) []string {
 582         pkgs := []string{
 583                 "automake",
 584                 "bison",
 585                 "ca-certificates",
 586                 "curl",
 587                 "fuse",
 588                 "git",
 589                 "gitolite3",
 590                 "graphviz",
 591                 "haveged",
 592                 "libcurl3-gnutls",
 593                 "libxslt1.1",
 594                 "make",
 595                 "nginx",
 596                 "python",
 597                 "sudo",
 598         }
 599         if osv.Debian || osv.Ubuntu {
 600                 if osv.Debian && osv.Major == 8 {
 601                         pkgs = append(pkgs, "libgnutls-deb0-28") // sdk/cwl
 602                 } else if osv.Debian && osv.Major >= 10 || osv.Ubuntu && osv.Major >= 16 {
 603                         pkgs = append(pkgs, "python3-distutils") // sdk/cwl
 604                 }
 605                 return append(pkgs,
 606                         "g++",
 607                         "libcurl4-openssl-dev", // services/api
 608                         "libpq-dev",
 609                         "libpython2.7", // services/fuse
 610                         "mime-support", // keep-web
 611                         "zlib1g-dev",   // services/api
 612                 )
 613         } else if osv.Centos {
 614                 return append(pkgs,
 615                         "fuse-libs", // services/fuse
 616                         "gcc",
 617                         "gcc-c++",
 618                         "libcurl-devel",    // services/api
 619                         "mailcap",          // keep-web
 620                         "postgresql-devel", // services/api
 621                 )
 622         } else {
 623                 panic("os version not supported")
 624         }
 625 }
 626
 627 func ProductionDependencies() ([]string, error) {
 628         osv, err := identifyOS()
 629         if err != nil {
 630                 return nil, err
 631         }
 632         return prodpkgs(osv), nil
 633 }