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         "strconv"
  18         "strings"
  19         "syscall"
  20         "time"
  21
  22         "git.arvados.org/arvados.git/lib/cmd"
  23         "git.arvados.org/arvados.git/sdk/go/ctxlog"
  24         "github.com/lib/pq"
  25 )
  26
  27 var Command cmd.Handler = installCommand{}
  28
  29 const devtestDatabasePassword = "insecure_arvados_test"
  30
  31 type installCommand struct{}
  32
  33 func (installCommand) RunCommand(prog string, args []string, stdin io.Reader, stdout, stderr io.Writer) int {
  34         logger := ctxlog.New(stderr, "text", "info")
  35         ctx := ctxlog.Context(context.Background(), logger)
  36         ctx, cancel := context.WithCancel(ctx)
  37         defer cancel()
  38
  39         var err error
  40         defer func() {
  41                 if err != nil {
  42                         logger.WithError(err).Info("exiting")
  43                 }
  44         }()
  45
  46         flags := flag.NewFlagSet(prog, flag.ContinueOnError)
  47         flags.SetOutput(stderr)
  48         versionFlag := flags.Bool("version", false, "Write version information to stdout and exit 0")
  49         clusterType := flags.String("type", "production", "cluster `type`: development, test, or production")
  50         err = flags.Parse(args)
  51         if err == flag.ErrHelp {
  52                 err = nil
  53                 return 0
  54         } else if err != nil {
  55                 return 2
  56         } else if *versionFlag {
  57                 return cmd.Version.RunCommand(prog, args, stdin, stdout, stderr)
  58         }
  59
  60         var dev, test, prod bool
  61         switch *clusterType {
  62         case "development":
  63                 dev = true
  64         case "test":
  65                 test = true
  66         case "production":
  67                 prod = true
  68         default:
  69                 err = fmt.Errorf("invalid cluster type %q (must be 'development', 'test', or 'production')", *clusterType)
  70                 return 2
  71         }
  72
  73         if prod {
  74                 err = errors.New("production install is not yet implemented")
  75                 return 1
  76         }
  77
  78         osv, err := identifyOS()
  79         if err != nil {
  80                 return 1
  81         }
  82
  83         listdir, err := os.Open("/var/lib/apt/lists")
  84         if err != nil {
  85                 logger.Warnf("error while checking whether to run apt-get update: %s", err)
  86         } else if names, _ := listdir.Readdirnames(1); len(names) == 0 {
  87                 // Special case for a base docker image where the
  88                 // package cache has been deleted and all "apt-get
  89                 // install" commands will fail unless we fetch repos.
  90                 cmd := exec.CommandContext(ctx, "apt-get", "update")
  91                 cmd.Stdout = stdout
  92                 cmd.Stderr = stderr
  93                 err = cmd.Run()
  94                 if err != nil {
  95                         return 1
  96                 }
  97         }
  98
  99         if dev || test {
 100                 debs := []string{
 101                         "bison",
 102                         "bsdmainutils",
 103                         "build-essential",
 104                         "ca-certificates",
 105                         "cadaver",
 106                         "curl",
 107                         "cython",
 108                         "daemontools", // lib/boot uses setuidgid to drop privileges when running as root
 109                         "default-jdk-headless",
 110                         "default-jre-headless",
 111                         "fuse",
 112                         "gettext",
 113                         "git",
 114                         "gitolite3",
 115                         "graphviz",
 116                         "haveged",
 117                         "iceweasel",
 118                         "libattr1-dev",
 119                         "libcrypt-ssleay-perl",
 120                         "libcrypt-ssleay-perl",
 121                         "libcurl3-gnutls",
 122                         "libcurl4-openssl-dev",
 123                         "libfuse-dev",
 124                         "libgnutls28-dev",
 125                         "libjson-perl",
 126                         "libjson-perl",
 127                         "libpam-dev",
 128                         "libpcre3-dev",
 129                         "libpq-dev",
 130                         "libpython2.7-dev",
 131                         "libreadline-dev",
 132                         "libssl-dev",
 133                         "libwww-perl",
 134                         "libxml2-dev",
 135                         "libxslt1.1",
 136                         "linkchecker",
 137                         "lsof",
 138                         "net-tools",
 139                         "nginx",
 140                         "pandoc",
 141                         "perl-modules",
 142                         "pkg-config",
 143                         "postgresql",
 144                         "postgresql-contrib",
 145                         "python",
 146                         "python3-dev",
 147                         "python-epydoc",
 148                         "r-base",
 149                         "r-cran-testthat",
 150                         "sudo",
 151                         "virtualenv",
 152                         "wget",
 153                         "xvfb",
 154                         "zlib1g-dev",
 155                 }
 156                 switch {
 157                 case osv.Debian && osv.Major >= 10:
 158                         debs = append(debs, "libcurl4")
 159                 default:
 160                         debs = append(debs, "libcurl3")
 161                 }
 162                 cmd := exec.CommandContext(ctx, "apt-get", "install", "--yes", "--no-install-recommends")
 163                 cmd.Args = append(cmd.Args, debs...)
 164                 cmd.Env = append(os.Environ(), "DEBIAN_FRONTEND=noninteractive")
 165                 cmd.Stdout = stdout
 166                 cmd.Stderr = stderr
 167                 err = cmd.Run()
 168                 if err != nil {
 169                         return 1
 170                 }
 171         }
 172
 173         os.Mkdir("/var/lib/arvados", 0755)
 174         rubyversion := "2.5.7"
 175         if haverubyversion, err := exec.Command("/var/lib/arvados/bin/ruby", "-v").CombinedOutput(); err == nil && bytes.HasPrefix(haverubyversion, []byte("ruby "+rubyversion)) {
 176                 logger.Print("ruby " + rubyversion + " already installed")
 177         } else {
 178                 err = runBash(`
 179 mkdir -p /var/lib/arvados/tmp
 180 tmp=/var/lib/arvados/tmp/ruby-`+rubyversion+`
 181 trap "rm -r ${tmp}" ERR
 182 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 -
 183 cd ${tmp}
 184 ./configure --disable-install-doc --prefix /var/lib/arvados
 185 make -j4
 186 make install
 187 /var/lib/arvados/bin/gem install bundler
 188 rm -r ${tmp}
 189 `, stdout, stderr)
 190                 if err != nil {
 191                         return 1
 192                 }
 193         }
 194
 195         if !prod {
 196                 goversion := "1.14"
 197                 if havegoversion, err := exec.Command("/usr/local/bin/go", "version").CombinedOutput(); err == nil && bytes.HasPrefix(havegoversion, []byte("go version go"+goversion+" ")) {
 198                         logger.Print("go " + goversion + " already installed")
 199                 } else {
 200                         err = runBash(`
 201 cd /tmp
 202 wget --progress=dot:giga -O- https://storage.googleapis.com/golang/go`+goversion+`.linux-amd64.tar.gz | tar -C /var/lib/arvados -xzf -
 203 ln -sf /var/lib/arvados/go/bin/* /usr/local/bin/
 204 `, stdout, stderr)
 205                         if err != nil {
 206                                 return 1
 207                         }
 208                 }
 209
 210                 pjsversion := "1.9.8"
 211                 if havepjsversion, err := exec.Command("/usr/local/bin/phantomjs", "--version").CombinedOutput(); err == nil && string(havepjsversion) == "1.9.8\n" {
 212                         logger.Print("phantomjs " + pjsversion + " already installed")
 213                 } else {
 214                         err = runBash(`
 215 PJS=phantomjs-`+pjsversion+`-linux-x86_64
 216 wget --progress=dot:giga -O- https://bitbucket.org/ariya/phantomjs/downloads/$PJS.tar.bz2 | tar -C /var/lib/arvados -xjf -
 217 ln -sf /var/lib/arvados/$PJS/bin/phantomjs /usr/local/bin/
 218 `, stdout, stderr)
 219                         if err != nil {
 220                                 return 1
 221                         }
 222                 }
 223
 224                 geckoversion := "0.24.0"
 225                 if havegeckoversion, err := exec.Command("/usr/local/bin/geckodriver", "--version").CombinedOutput(); err == nil && strings.Contains(string(havegeckoversion), " "+geckoversion+" ") {
 226                         logger.Print("geckodriver " + geckoversion + " already installed")
 227                 } else {
 228                         err = runBash(`
 229 GD=v`+geckoversion+`
 230 wget --progress=dot:giga -O- https://github.com/mozilla/geckodriver/releases/download/$GD/geckodriver-$GD-linux64.tar.gz | tar -C /var/lib/arvados/bin -xzf - geckodriver
 231 ln -sf /var/lib/arvados/bin/geckodriver /usr/local/bin/
 232 `, stdout, stderr)
 233                         if err != nil {
 234                                 return 1
 235                         }
 236                 }
 237
 238                 nodejsversion := "v8.15.1"
 239                 if havenodejsversion, err := exec.Command("/usr/local/bin/node", "--version").CombinedOutput(); err == nil && string(havenodejsversion) == nodejsversion+"\n" {
 240                         logger.Print("nodejs " + nodejsversion + " already installed")
 241                 } else {
 242                         err = runBash(`
 243 NJS=`+nodejsversion+`
 244 wget --progress=dot:giga -O- https://nodejs.org/dist/${NJS}/node-${NJS}-linux-x64.tar.xz | sudo tar -C /var/lib/arvados -xJf -
 245 ln -sf /var/lib/arvados/node-${NJS}-linux-x64/bin/{node,npm} /usr/local/bin/
 246 `, stdout, stderr)
 247                         if err != nil {
 248                                 return 1
 249                         }
 250                 }
 251
 252                 gradleversion := "5.3.1"
 253                 if havegradleversion, err := exec.Command("/usr/local/bin/gradle", "--version").CombinedOutput(); err == nil && strings.Contains(string(havegradleversion), "Gradle "+gradleversion+"\n") {
 254                         logger.Print("gradle " + gradleversion + " already installed")
 255                 } else {
 256                         err = runBash(`
 257 G=`+gradleversion+`
 258 mkdir -p /var/lib/arvados/tmp
 259 zip=/var/lib/arvados/tmp/gradle-${G}-bin.zip
 260 trap "rm ${zip}" ERR
 261 wget --progress=dot:giga -O${zip} https://services.gradle.org/distributions/gradle-${G}-bin.zip
 262 unzip -o -d /var/lib/arvados ${zip}
 263 ln -sf /var/lib/arvados/gradle-${G}/bin/gradle /usr/local/bin/
 264 rm ${zip}
 265 `, stdout, stderr)
 266                         if err != nil {
 267                                 return 1
 268                         }
 269                 }
 270
 271                 // The entry in /etc/locale.gen is "en_US.UTF-8"; once
 272                 // it's installed, locale -a reports it as
 273                 // "en_US.utf8".
 274                 wantlocale := "en_US.UTF-8"
 275                 if havelocales, err := exec.Command("locale", "-a").CombinedOutput(); err == nil && bytes.Contains(havelocales, []byte(strings.Replace(wantlocale+"\n", "UTF-", "utf", 1))) {
 276                         logger.Print("locale " + wantlocale + " already installed")
 277                 } else {
 278                         err = runBash(`sed -i 's/^# *\(`+wantlocale+`\)/\1/' /etc/locale.gen && locale-gen`, stdout, stderr)
 279                         if err != nil {
 280                                 return 1
 281                         }
 282                 }
 283
 284                 var pgc struct {
 285                         Version       string
 286                         Cluster       string
 287                         Port          int
 288                         Status        string
 289                         Owner         string
 290                         DataDirectory string
 291                         LogFile       string
 292                 }
 293                 if pg_lsclusters, err2 := exec.Command("pg_lsclusters", "--no-header").CombinedOutput(); err2 != nil {
 294                         err = fmt.Errorf("pg_lsclusters: %s", err2)
 295                         return 1
 296                 } else if pgclusters := strings.Split(strings.TrimSpace(string(pg_lsclusters)), "\n"); len(pgclusters) != 1 {
 297                         logger.Warnf("pg_lsclusters returned %d postgresql clusters -- skipping postgresql initdb/startup, hope that's ok", len(pgclusters))
 298                 } 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 {
 299                         err = fmt.Errorf("error parsing pg_lsclusters output: %s", err)
 300                         return 1
 301                 } else if pgc.Status == "online" {
 302                         logger.Infof("postgresql cluster %s-%s is online", pgc.Version, pgc.Cluster)
 303                 } else {
 304                         logger.Infof("postgresql cluster %s-%s is %s; trying to start", pgc.Version, pgc.Cluster, pgc.Status)
 305                         cmd := exec.Command("pg_ctlcluster", "--foreground", pgc.Version, pgc.Cluster, "start")
 306                         cmd.Stdout = stdout
 307                         cmd.Stderr = stderr
 308                         err = cmd.Start()
 309                         if err != nil {
 310                                 return 1
 311                         }
 312                         defer func() {
 313                                 cmd.Process.Signal(syscall.SIGTERM)
 314                                 logger.Info("sent SIGTERM; waiting for postgres to shut down")
 315                                 cmd.Wait()
 316                         }()
 317                         err = waitPostgreSQLReady()
 318                         if err != nil {
 319                                 return 1
 320                         }
 321                 }
 322
 323                 if os.Getpid() == 1 {
 324                         // We are the init process (presumably in a
 325                         // docker container) so although postgresql is
 326                         // installed, it's not running, and initdb
 327                         // might never have been run.
 328                 }
 329
 330                 var needcoll []string
 331                 // If the en_US.UTF-8 locale wasn't installed when
 332                 // postgresql initdb ran, it needs to be added
 333                 // explicitly before we can use it in our test suite.
 334                 for _, collname := range []string{"en_US", "en_US.UTF-8"} {
 335                         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')")
 336                         cmd.Dir = "/"
 337                         out, err2 := cmd.CombinedOutput()
 338                         if err != nil {
 339                                 err = fmt.Errorf("error while checking postgresql collations: %s", err2)
 340                                 return 1
 341                         }
 342                         if strings.Contains(string(out), "1") {
 343                                 logger.Infof("postgresql supports collation %s", collname)
 344                         } else {
 345                                 needcoll = append(needcoll, collname)
 346                         }
 347                 }
 348                 if len(needcoll) > 0 && os.Getpid() != 1 {
 349                         // In order for the CREATE COLLATION statement
 350                         // below to work, the locale must have existed
 351                         // when PostgreSQL started up. If we're
 352                         // running as init, we must have started
 353                         // PostgreSQL ourselves after installing the
 354                         // locales. Otherwise, it might need a
 355                         // restart, so we attempt to restart it with
 356                         // systemd.
 357                         if err = runBash(`sudo systemctl restart postgresql`, stdout, stderr); err != nil {
 358                                 logger.Warn("`systemctl restart postgresql` failed; hoping postgresql does not need to be restarted")
 359                         } else if err = waitPostgreSQLReady(); err != nil {
 360                                 return 1
 361                         }
 362                 }
 363                 for _, collname := range needcoll {
 364                         cmd := exec.Command("sudo", "-u", "postgres", "psql", "-c", "CREATE COLLATION \""+collname+"\" (LOCALE = \"en_US.UTF-8\")")
 365                         cmd.Stdout = stdout
 366                         cmd.Stderr = stderr
 367                         cmd.Dir = "/"
 368                         err = cmd.Run()
 369                         if err != nil {
 370                                 err = fmt.Errorf("error adding postgresql collation %s: %s", collname, err)
 371                                 return 1
 372                         }
 373                 }
 374
 375                 withstuff := "WITH LOGIN SUPERUSER ENCRYPTED PASSWORD " + pq.QuoteLiteral(devtestDatabasePassword)
 376                 cmd := exec.Command("sudo", "-u", "postgres", "psql", "-c", "ALTER ROLE arvados "+withstuff)
 377                 cmd.Dir = "/"
 378                 if err := cmd.Run(); err == nil {
 379                         logger.Print("arvados role exists; superuser privileges added, password updated")
 380                 } else {
 381                         cmd := exec.Command("sudo", "-u", "postgres", "psql", "-c", "CREATE ROLE arvados "+withstuff)
 382                         cmd.Dir = "/"
 383                         cmd.Stdout = stdout
 384                         cmd.Stderr = stderr
 385                         err = cmd.Run()
 386                         if err != nil {
 387                                 return 1
 388                         }
 389                 }
 390         }
 391
 392         return 0
 393 }
 394
 395 type osversion struct {
 396         Debian bool
 397         Ubuntu bool
 398         Major  int
 399 }
 400
 401 func identifyOS() (osversion, error) {
 402         var osv osversion
 403         f, err := os.Open("/etc/os-release")
 404         if err != nil {
 405                 return osv, err
 406         }
 407         defer f.Close()
 408
 409         kv := map[string]string{}
 410         scanner := bufio.NewScanner(f)
 411         for scanner.Scan() {
 412                 line := strings.TrimSpace(scanner.Text())
 413                 if strings.HasPrefix(line, "#") {
 414                         continue
 415                 }
 416                 toks := strings.SplitN(line, "=", 2)
 417                 if len(toks) != 2 {
 418                         return osv, fmt.Errorf("invalid line in /etc/os-release: %q", line)
 419                 }
 420                 k := toks[0]
 421                 v := strings.Trim(toks[1], `"`)
 422                 if v == toks[1] {
 423                         v = strings.Trim(v, `'`)
 424                 }
 425                 kv[k] = v
 426         }
 427         if err = scanner.Err(); err != nil {
 428                 return osv, err
 429         }
 430         switch kv["ID"] {
 431         case "ubuntu":
 432                 osv.Ubuntu = true
 433         case "debian":
 434                 osv.Debian = true
 435         default:
 436                 return osv, fmt.Errorf("unsupported ID in /etc/os-release: %q", kv["ID"])
 437         }
 438         vstr := kv["VERSION_ID"]
 439         if i := strings.Index(vstr, "."); i > 0 {
 440                 vstr = vstr[:i]
 441         }
 442         osv.Major, err = strconv.Atoi(vstr)
 443         if err != nil {
 444                 return osv, fmt.Errorf("incomprehensible VERSION_ID in /etc/os-release: %q", kv["VERSION_ID"])
 445         }
 446         return osv, nil
 447 }
 448
 449 func waitPostgreSQLReady() error {
 450         for deadline := time.Now().Add(10 * time.Second); ; {
 451                 output, err := exec.Command("pg_isready").CombinedOutput()
 452                 if err == nil {
 453                         return nil
 454                 } else if time.Now().After(deadline) {
 455                         return fmt.Errorf("timed out waiting for pg_isready (%q)", output)
 456                 } else {
 457                         time.Sleep(time.Second)
 458                 }
 459         }
 460 }
 461
 462 func runBash(script string, stdout, stderr io.Writer) error {
 463         cmd := exec.Command("bash", "-")
 464         cmd.Stdin = bytes.NewBufferString("set -ex -o pipefail\n" + script)
 465         cmd.Stdout = stdout
 466         cmd.Stderr = stderr
 467         return cmd.Run()
 468 }