tests/guix-environment-container.sh

   1 # GNU Guix --- Functional package management for GNU
   2 # Copyright © 2015 David Thompson <davet@gnu.org>
   3 #
   4 # This file is part of GNU Guix.
   5 #
   6 # GNU Guix is free software; you can redistribute it and/or modify it
   7 # under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 3 of the License, or (at
   9 # your option) any later version.
  10 #
  11 # GNU Guix is distributed in the hope that it will be useful, but
  12 # WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 #
  20 # Test 'guix environment'.
  21 #
  22
  23 set -e
  24
  25 guix environment --version
  26
  27 if ! guile -c '((@ (guix scripts environment) assert-container-features))'
  28 then
  29     # User containers are not supported; skip this test.
  30     exit 77
  31 fi
  32
  33 tmpdir="t-guix-environment-$$"
  34 trap 'rm -r "$tmpdir"' EXIT
  35
  36 mkdir "$tmpdir"
  37
  38 # Make sure the exit value is preserved.
  39 if guix environment --container --ad-hoc --bootstrap guile-bootstrap \
  40         -- guile -c '(exit 42)'
  41 then
  42     false
  43 else
  44     test $? = 42
  45 fi
  46
  47 # Make sure "localhost" resolves.
  48 guix environment --container --ad-hoc --bootstrap guile-bootstrap \
  49      -- guile -c '(exit (pair? (getaddrinfo "localhost" "80")))'
  50
  51 # We should get ECONNREFUSED, not ENETUNREACH, which would indicate that "lo"
  52 # is down.
  53 guix environment --container --ad-hoc --bootstrap guile-bootstrap \
  54      -- guile -c "(exit (= ECONNREFUSED
  55   (catch 'system-error
  56     (lambda ()
  57       (let ((sock (socket AF_INET SOCK_STREAM 0)))
  58         (connect sock AF_INET INADDR_LOOPBACK 12345)))
  59     (lambda args
  60       (pk 'errno (system-error-errno args))))))"
  61
  62 # Make sure '--preserve' is honored.
  63 result="`FOOBAR=42; export FOOBAR; guix environment -C --ad-hoc --bootstrap \
  64    guile-bootstrap -E ^FOO -- guile -c '(display (getenv \"FOOBAR\"))'`"
  65 test "$result" = "42"
  66
  67 # By default, the UID inside the container should be the same as outside.
  68 uid="`id -u`"
  69 inner_uid="`guix environment -C --ad-hoc --bootstrap guile-bootstrap \
  70   -- guile -c '(display (getuid))'`"
  71 test $inner_uid = $uid
  72
  73 # When '--user' is passed, the UID should be 1000.  (Note: Use a separate HOME
  74 # so that we don't run into problems when the test directory is under /home.)
  75 export tmpdir
  76 inner_uid="`HOME=$tmpdir guix environment -C --ad-hoc --bootstrap guile-bootstrap \
  77   --user=gnu-guix -- guile -c '(display (getuid))'`"
  78 test $inner_uid = 1000
  79
  80 if test "x$USER" = "x"; then USER="`id -un`"; fi
  81
  82 # Check whether /etc/passwd and /etc/group are valid.
  83 guix environment -C --ad-hoc --bootstrap guile-bootstrap \
  84      -- guile -c "(exit (string=? \"$USER\" (passwd:name (getpwuid (getuid)))))"
  85 guix environment -C --ad-hoc --bootstrap guile-bootstrap \
  86      -- guile -c '(exit (string? (group:name (getgrgid (getgid)))))'
  87 guix environment -C --ad-hoc --bootstrap guile-bootstrap \
  88      -- guile -c '(use-modules (srfi srfi-1))
  89                   (exit (every group:name
  90                                (map getgrgid (vector->list (getgroups)))))'
  91
  92 # Make sure file-not-found errors in mounts are reported.
  93 if guix environment --container --ad-hoc --bootstrap guile-bootstrap \
  94         --expose=/does-not-exist -- guile -c 1 2> "$tmpdir/error"
  95 then
  96     false
  97 else
  98     grep "/does-not-exist" "$tmpdir/error"
  99     grep "[Nn]o such file" "$tmpdir/error"
 100 fi
 101
 102 # Make sure that the right directories are mapped.
 103 mount_test_code="
 104 (use-modules (ice-9 rdelim)
 105              (ice-9 match)
 106              (srfi srfi-1))
 107
 108 (define mappings
 109   (filter-map (lambda (line)
 110                 (match (string-split line #\space)
 111                   ;; Empty line.
 112                   ((\"\") #f)
 113                   ;; Ignore the root file system.
 114                   ((_ \"/\" _ _ _ _)
 115                    #f)
 116                   ;; Ignore these types of file systems, except if they
 117                   ;; correspond to a parent file system.
 118                   ((_ mount (or \"tmpfs\" \"proc\" \"sysfs\" \"devtmpfs\"
 119                                 \"devpts\" \"cgroup\" \"mqueue\") _ _ _)
 120                    (and (string-prefix? (getcwd) mount)
 121                         mount))
 122                   ((_ mount _ _ _ _)
 123                    mount)))
 124               (string-split (call-with-input-file \"/proc/mounts\" read-string)
 125                             #\newline)))
 126
 127 (for-each (lambda (mount)
 128             (display mount)
 129             (newline))
 130           mappings)"
 131
 132 guix environment --container --ad-hoc --bootstrap guile-bootstrap \
 133      -- guile -c "$mount_test_code" > $tmpdir/mounts
 134
 135 cat "$tmpdir/mounts"
 136 test `wc -l < $tmpdir/mounts` -eq 4
 137
 138 current_dir="`cd $PWD; pwd -P`"
 139 grep -e "$current_dir$" $tmpdir/mounts # current directory
 140 grep $(guix build guile-bootstrap) $tmpdir/mounts
 141 grep -e "$NIX_STORE_DIR/.*-bash" $tmpdir/mounts # bootstrap bash
 142
 143 rm $tmpdir/mounts
 144
 145 # Make sure 'GUIX_ENVIRONMENT' is set to '~/.guix-profile' when requested
 146 # within a container.
 147 (
 148   linktest='
 149 (exit (and (string=? (getenv "GUIX_ENVIRONMENT")
 150                      (string-append (getenv "HOME") "/.guix-profile"))
 151            (string-prefix? "'"$NIX_STORE_DIR"'"
 152                            (readlink (string-append (getenv "HOME")
 153                                                     "/.guix-profile")))))'
 154
 155   cd "$tmpdir" \
 156      && guix environment --bootstrap --container --link-profile \
 157              --ad-hoc guile-bootstrap --pure \
 158              -- guile -c "$linktest"
 159 )
 160
 161 # Test that user can be mocked.
 162 usertest='(exit (and (string=? (getenv "HOME") "/home/foognu")
 163                      (string=? (passwd:name (getpwuid 1000)) "foognu")
 164                      (file-exists? "/home/foognu/umock")))'
 165 touch "$tmpdir/umock"
 166 HOME="$tmpdir" guix environment --bootstrap --container --user=foognu \
 167      --ad-hoc guile-bootstrap --pure \
 168      --share="$tmpdir/umock" \
 169      -- guile -c "$usertest"
 170
 171 # if not sharing CWD, chdir home
 172 (
 173   cd "$tmpdir" \
 174     && guix environment --bootstrap --container --no-cwd --user=foo  \
 175             --ad-hoc guile-bootstrap --pure \
 176             -- /bin/sh -c 'test $(pwd) == "/home/foo" -a ! -d '"$tmpdir"
 177 )
 178
 179 # Check the exit code.
 180
 181 abnormal_exit_code="
 182 (use-modules (system foreign))
 183 ;; Purposely make Guile crash with a segfault. :)
 184 (pointer->string (make-pointer 123) 123)"
 185
 186 if guix environment --bootstrap --container \
 187         --ad-hoc guile-bootstrap -- guile -c "$abnormal_exit_code"
 188 then false;
 189 else
 190     test $? -gt 127
 191 fi