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                         "cython3",
 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                         "libreadline-dev",
 131                         "libssl-dev",
 132                         "libwww-perl",
 133                         "libxml2-dev",
 134                         "libxslt1.1",
 135                         "linkchecker",
 136                         "lsof",
 137                         "net-tools",
 138                         "nginx",
 139                         "pandoc",
 140                         "perl-modules",
 141                         "pkg-config",
 142                         "postgresql",
 143                         "postgresql-contrib",
 144                         "python3-dev",
 145                         "r-base",
 146                         "r-cran-testthat",
 147                         "sudo",
 148                         "python3-virtualenv",
 149                         "python3-venv",
 150                         "wget",
 151                         "xvfb",
 152                         "zlib1g-dev",
 153                 }
 154                 switch {
 155                 case osv.Debian && osv.Major >= 10:
 156                         debs = append(debs, "libcurl4")
 157                 default:
 158                         debs = append(debs, "libcurl3")
 159                 }
 160                 cmd := exec.CommandContext(ctx, "apt-get", "install", "--yes", "--no-install-recommends")
 161                 cmd.Args = append(cmd.Args, debs...)
 162                 cmd.Env = append(os.Environ(), "DEBIAN_FRONTEND=noninteractive")
 163                 cmd.Stdout = stdout
 164                 cmd.Stderr = stderr
 165                 err = cmd.Run()
 166                 if err != nil {
 167                         return 1
 168                 }
 169         }
 170
 171         os.Mkdir("/var/lib/arvados", 0755)
 172         rubyversion := "2.5.7"
 173         if haverubyversion, err := exec.Command("/var/lib/arvados/bin/ruby", "-v").CombinedOutput(); err == nil && bytes.HasPrefix(haverubyversion, []byte("ruby "+rubyversion)) {
 174                 logger.Print("ruby " + rubyversion + " already installed")
 175         } else {
 176                 err = runBash(`
 177 mkdir -p /var/lib/arvados/tmp
 178 tmp=/var/lib/arvados/tmp/ruby-`+rubyversion+`
 179 trap "rm -r ${tmp}" ERR
 180 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 -
 181 cd ${tmp}
 182 ./configure --disable-install-doc --prefix /var/lib/arvados
 183 make -j4
 184 make install
 185 /var/lib/arvados/bin/gem install bundler
 186 rm -r ${tmp}
 187 `, stdout, stderr)
 188                 if err != nil {
 189                         return 1
 190                 }
 191         }
 192
 193         if !prod {
 194                 goversion := "1.14"
 195                 if havegoversion, err := exec.Command("/usr/local/bin/go", "version").CombinedOutput(); err == nil && bytes.HasPrefix(havegoversion, []byte("go version go"+goversion+" ")) {
 196                         logger.Print("go " + goversion + " already installed")
 197                 } else {
 198                         err = runBash(`
 199 cd /tmp
 200 wget --progress=dot:giga -O- https://storage.googleapis.com/golang/go`+goversion+`.linux-amd64.tar.gz | tar -C /var/lib/arvados -xzf -
 201 ln -sf /var/lib/arvados/go/bin/* /usr/local/bin/
 202 `, stdout, stderr)
 203                         if err != nil {
 204                                 return 1
 205                         }
 206                 }
 207
 208                 pjsversion := "1.9.8"
 209                 if havepjsversion, err := exec.Command("/usr/local/bin/phantomjs", "--version").CombinedOutput(); err == nil && string(havepjsversion) == "1.9.8\n" {
 210                         logger.Print("phantomjs " + pjsversion + " already installed")
 211                 } else {
 212                         err = runBash(`
 213 PJS=phantomjs-`+pjsversion+`-linux-x86_64
 214 wget --progress=dot:giga -O- https://bitbucket.org/ariya/phantomjs/downloads/$PJS.tar.bz2 | tar -C /var/lib/arvados -xjf -
 215 ln -sf /var/lib/arvados/$PJS/bin/phantomjs /usr/local/bin/
 216 `, stdout, stderr)
 217                         if err != nil {
 218                                 return 1
 219                         }
 220                 }
 221
 222                 geckoversion := "0.24.0"
 223                 if havegeckoversion, err := exec.Command("/usr/local/bin/geckodriver", "--version").CombinedOutput(); err == nil && strings.Contains(string(havegeckoversion), " "+geckoversion+" ") {
 224                         logger.Print("geckodriver " + geckoversion + " already installed")
 225                 } else {
 226                         err = runBash(`
 227 GD=v`+geckoversion+`
 228 wget --progress=dot:giga -O- https://github.com/mozilla/geckodriver/releases/download/$GD/geckodriver-$GD-linux64.tar.gz | tar -C /var/lib/arvados/bin -xzf - geckodriver
 229 ln -sf /var/lib/arvados/bin/geckodriver /usr/local/bin/
 230 `, stdout, stderr)
 231                         if err != nil {
 232                                 return 1
 233                         }
 234                 }
 235
 236                 nodejsversion := "v8.15.1"
 237                 if havenodejsversion, err := exec.Command("/usr/local/bin/node", "--version").CombinedOutput(); err == nil && string(havenodejsversion) == nodejsversion+"\n" {
 238                         logger.Print("nodejs " + nodejsversion + " already installed")
 239                 } else {
 240                         err = runBash(`
 241 NJS=`+nodejsversion+`
 242 wget --progress=dot:giga -O- https://nodejs.org/dist/${NJS}/node-${NJS}-linux-x64.tar.xz | sudo tar -C /var/lib/arvados -xJf -
 243 ln -sf /var/lib/arvados/node-${NJS}-linux-x64/bin/{node,npm} /usr/local/bin/
 244 `, stdout, stderr)
 245                         if err != nil {
 246                                 return 1
 247                         }
 248                 }
 249
 250                 gradleversion := "5.3.1"
 251                 if havegradleversion, err := exec.Command("/usr/local/bin/gradle", "--version").CombinedOutput(); err == nil && strings.Contains(string(havegradleversion), "Gradle "+gradleversion+"\n") {
 252                         logger.Print("gradle " + gradleversion + " already installed")
 253                 } else {
 254                         err = runBash(`
 255 G=`+gradleversion+`
 256 mkdir -p /var/lib/arvados/tmp
 257 zip=/var/lib/arvados/tmp/gradle-${G}-bin.zip
 258 trap "rm ${zip}" ERR
 259 wget --progress=dot:giga -O${zip} https://services.gradle.org/distributions/gradle-${G}-bin.zip
 260 unzip -o -d /var/lib/arvados ${zip}
 261 ln -sf /var/lib/arvados/gradle-${G}/bin/gradle /usr/local/bin/
 262 rm ${zip}
 263 `, stdout, stderr)
 264                         if err != nil {
 265                                 return 1
 266                         }
 267                 }
 268
 269                 // The entry in /etc/locale.gen is "en_US.UTF-8"; once
 270                 // it's installed, locale -a reports it as
 271                 // "en_US.utf8".
 272                 wantlocale := "en_US.UTF-8"
 273                 if havelocales, err := exec.Command("locale", "-a").CombinedOutput(); err == nil && bytes.Contains(havelocales, []byte(strings.Replace(wantlocale+"\n", "UTF-", "utf", 1))) {
 274                         logger.Print("locale " + wantlocale + " already installed")
 275                 } else {
 276                         err = runBash(`sed -i 's/^# *\(`+wantlocale+`\)/\1/' /etc/locale.gen && locale-gen`, stdout, stderr)
 277                         if err != nil {
 278                                 return 1
 279                         }
 280                 }
 281
 282                 var pgc struct {
 283                         Version       string
 284                         Cluster       string
 285                         Port          int
 286                         Status        string
 287                         Owner         string
 288                         DataDirectory string
 289                         LogFile       string
 290                 }
 291                 if pg_lsclusters, err2 := exec.Command("pg_lsclusters", "--no-header").CombinedOutput(); err2 != nil {
 292                         err = fmt.Errorf("pg_lsclusters: %s", err2)
 293                         return 1
 294                 } else if pgclusters := strings.Split(strings.TrimSpace(string(pg_lsclusters)), "\n"); len(pgclusters) != 1 {
 295                         logger.Warnf("pg_lsclusters returned %d postgresql clusters -- skipping postgresql initdb/startup, hope that's ok", len(pgclusters))
 296                 } 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 {
 297                         err = fmt.Errorf("error parsing pg_lsclusters output: %s", err)
 298                         return 1
 299                 } else if pgc.Status == "online" {
 300                         logger.Infof("postgresql cluster %s-%s is online", pgc.Version, pgc.Cluster)
 301                 } else {
 302                         logger.Infof("postgresql cluster %s-%s is %s; trying to start", pgc.Version, pgc.Cluster, pgc.Status)
 303                         cmd := exec.Command("pg_ctlcluster", "--foreground", pgc.Version, pgc.Cluster, "start")
 304                         cmd.Stdout = stdout
 305                         cmd.Stderr = stderr
 306                         err = cmd.Start()
 307                         if err != nil {
 308                                 return 1
 309                         }
 310                         defer func() {
 311                                 cmd.Process.Signal(syscall.SIGTERM)
 312                                 logger.Info("sent SIGTERM; waiting for postgres to shut down")
 313                                 cmd.Wait()
 314                         }()
 315                         err = waitPostgreSQLReady()
 316                         if err != nil {
 317                                 return 1
 318                         }
 319                 }
 320
 321                 if os.Getpid() == 1 {
 322                         // We are the init process (presumably in a
 323                         // docker container) so although postgresql is
 324                         // installed, it's not running, and initdb
 325                         // might never have been run.
 326                 }
 327
 328                 var needcoll []string
 329                 // If the en_US.UTF-8 locale wasn't installed when
 330                 // postgresql initdb ran, it needs to be added
 331                 // explicitly before we can use it in our test suite.
 332                 for _, collname := range []string{"en_US", "en_US.UTF-8"} {
 333                         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')")
 334                         cmd.Dir = "/"
 335                         out, err2 := cmd.CombinedOutput()
 336                         if err != nil {
 337                                 err = fmt.Errorf("error while checking postgresql collations: %s", err2)
 338                                 return 1
 339                         }
 340                         if strings.Contains(string(out), "1") {
 341                                 logger.Infof("postgresql supports collation %s", collname)
 342                         } else {
 343                                 needcoll = append(needcoll, collname)
 344                         }
 345                 }
 346                 if len(needcoll) > 0 && os.Getpid() != 1 {
 347                         // In order for the CREATE COLLATION statement
 348                         // below to work, the locale must have existed
 349                         // when PostgreSQL started up. If we're
 350                         // running as init, we must have started
 351                         // PostgreSQL ourselves after installing the
 352                         // locales. Otherwise, it might need a
 353                         // restart, so we attempt to restart it with
 354                         // systemd.
 355                         if err = runBash(`sudo systemctl restart postgresql`, stdout, stderr); err != nil {
 356                                 logger.Warn("`systemctl restart postgresql` failed; hoping postgresql does not need to be restarted")
 357                         } else if err = waitPostgreSQLReady(); err != nil {
 358                                 return 1
 359                         }
 360                 }
 361                 for _, collname := range needcoll {
 362                         cmd := exec.Command("sudo", "-u", "postgres", "psql", "-c", "CREATE COLLATION \""+collname+"\" (LOCALE = \"en_US.UTF-8\")")
 363                         cmd.Stdout = stdout
 364                         cmd.Stderr = stderr
 365                         cmd.Dir = "/"
 366                         err = cmd.Run()
 367                         if err != nil {
 368                                 err = fmt.Errorf("error adding postgresql collation %s: %s", collname, err)
 369                                 return 1
 370                         }
 371                 }
 372
 373                 withstuff := "WITH LOGIN SUPERUSER ENCRYPTED PASSWORD " + pq.QuoteLiteral(devtestDatabasePassword)
 374                 cmd := exec.Command("sudo", "-u", "postgres", "psql", "-c", "ALTER ROLE arvados "+withstuff)
 375                 cmd.Dir = "/"
 376                 if err := cmd.Run(); err == nil {
 377                         logger.Print("arvados role exists; superuser privileges added, password updated")
 378                 } else {
 379                         cmd := exec.Command("sudo", "-u", "postgres", "psql", "-c", "CREATE ROLE arvados "+withstuff)
 380                         cmd.Dir = "/"
 381                         cmd.Stdout = stdout
 382                         cmd.Stderr = stderr
 383                         err = cmd.Run()
 384                         if err != nil {
 385                                 return 1
 386                         }
 387                 }
 388         }
 389
 390         return 0
 391 }
 392
 393 type osversion struct {
 394         Debian bool
 395         Ubuntu bool
 396         Major  int
 397 }
 398
 399 func identifyOS() (osversion, error) {
 400         var osv osversion
 401         f, err := os.Open("/etc/os-release")
 402         if err != nil {
 403                 return osv, err
 404         }
 405         defer f.Close()
 406
 407         kv := map[string]string{}
 408         scanner := bufio.NewScanner(f)
 409         for scanner.Scan() {
 410                 line := strings.TrimSpace(scanner.Text())
 411                 if strings.HasPrefix(line, "#") {
 412                         continue
 413                 }
 414                 toks := strings.SplitN(line, "=", 2)
 415                 if len(toks) != 2 {
 416                         return osv, fmt.Errorf("invalid line in /etc/os-release: %q", line)
 417                 }
 418                 k := toks[0]
 419                 v := strings.Trim(toks[1], `"`)
 420                 if v == toks[1] {
 421                         v = strings.Trim(v, `'`)
 422                 }
 423                 kv[k] = v
 424         }
 425         if err = scanner.Err(); err != nil {
 426                 return osv, err
 427         }
 428         switch kv["ID"] {
 429         case "ubuntu":
 430                 osv.Ubuntu = true
 431         case "debian":
 432                 osv.Debian = true
 433         default:
 434                 return osv, fmt.Errorf("unsupported ID in /etc/os-release: %q", kv["ID"])
 435         }
 436         vstr := kv["VERSION_ID"]
 437         if i := strings.Index(vstr, "."); i > 0 {
 438                 vstr = vstr[:i]
 439         }
 440         osv.Major, err = strconv.Atoi(vstr)
 441         if err != nil {
 442                 return osv, fmt.Errorf("incomprehensible VERSION_ID in /etc/os-release: %q", kv["VERSION_ID"])
 443         }
 444         return osv, nil
 445 }
 446
 447 func waitPostgreSQLReady() error {
 448         for deadline := time.Now().Add(10 * time.Second); ; {
 449                 output, err := exec.Command("pg_isready").CombinedOutput()
 450                 if err == nil {
 451                         return nil
 452                 } else if time.Now().After(deadline) {
 453                         return fmt.Errorf("timed out waiting for pg_isready (%q)", output)
 454                 } else {
 455                         time.Sleep(time.Second)
 456                 }
 457         }
 458 }
 459
 460 func runBash(script string, stdout, stderr io.Writer) error {
 461         cmd := exec.Command("bash", "-")
 462         cmd.Stdin = bytes.NewBufferString("set -ex -o pipefail\n" + script)
 463         cmd.Stdout = stdout
 464         cmd.Stderr = stderr
 465         return cmd.Run()
 466 }