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