test/TEST-13-NSPAWN-SMOKE/test.sh

   1 #!/bin/bash
   2 set -e
   3 TEST_DESCRIPTION="systemd-nspawn smoke test"
   4 TEST_NO_NSPAWN=1
   5
   6 . $TEST_BASE_DIR/test-functions
   7
   8 test_setup() {
   9     create_empty_image
  10     mkdir -p $TESTDIR/root
  11     mount ${LOOPDEV}p1 $TESTDIR/root
  12
  13     # Create what will eventually be our root filesystem onto an overlay
  14     (
  15         LOG_LEVEL=5
  16         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
  17
  18         setup_basic_environment
  19         dracut_install busybox chmod rmdir unshare ip sysctl
  20
  21         # mask some services that we do not want to run in these tests
  22         ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
  23         ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
  24         ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
  25         ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
  26         ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
  27         ln -fs /dev/null $initdir/etc/systemd/system/systemd-machined.service
  28
  29         cp create-busybox-container $initdir/
  30
  31         ./create-busybox-container $initdir/nc-container
  32         initdir="$initdir/nc-container" dracut_install nc ip
  33
  34         # setup the testsuite service
  35         cat >$initdir/etc/systemd/system/testsuite.service <<EOF
  36 [Unit]
  37 Description=Testsuite service
  38
  39 [Service]
  40 ExecStart=/test-nspawn.sh
  41 Type=oneshot
  42 StandardOutput=tty
  43 StandardError=tty
  44 EOF
  45
  46         cat >$initdir/test-nspawn.sh <<'EOF'
  47 #!/bin/bash
  48 set -x
  49 set -e
  50 set -u
  51 set -o pipefail
  52
  53 export SYSTEMD_LOG_LEVEL=debug
  54
  55 # check cgroup-v2
  56 is_v2_supported=no
  57 mkdir -p /tmp/cgroup2
  58 if mount -t cgroup2 cgroup2 /tmp/cgroup2; then
  59     is_v2_supported=yes
  60     umount /tmp/cgroup2
  61 fi
  62 rmdir /tmp/cgroup2
  63
  64 # check cgroup namespaces
  65 is_cgns_supported=no
  66 if [[ -f /proc/1/ns/cgroup ]]; then
  67     is_cgns_supported=yes
  68 fi
  69
  70 is_user_ns_supported=no
  71 # On some systems (e.g. CentOS 7) the default limit for user namespaces
  72 # is set to 0, which causes the following unshare syscall to fail, even
  73 # with enabled user namespaces support. By setting this value explicitly
  74 # we can ensure the user namespaces support to be detected correctly.
  75 sysctl -w user.max_user_namespaces=10000
  76 if unshare -U sh -c :; then
  77     is_user_ns_supported=yes
  78 fi
  79
  80 function check_bind_tmp_path {
  81     # https://github.com/systemd/systemd/issues/4789
  82     local _root="/var/lib/machines/bind-tmp-path"
  83     /create-busybox-container "$_root"
  84     >/tmp/bind
  85     systemd-nspawn --register=no -D "$_root" --bind=/tmp/bind /bin/sh -c 'test -e /tmp/bind'
  86 }
  87
  88 function check_notification_socket {
  89     # https://github.com/systemd/systemd/issues/4944
  90     local _cmd='echo a | $(busybox which nc) -U -u -w 1 /run/systemd/nspawn/notify'
  91     systemd-nspawn --register=no -D /nc-container /bin/sh -x -c "$_cmd"
  92     systemd-nspawn --register=no -D /nc-container -U /bin/sh -x -c "$_cmd"
  93 }
  94
  95 function run {
  96     if [[ "$1" = "yes" && "$is_v2_supported" = "no" ]]; then
  97         printf "Unified cgroup hierarchy is not supported. Skipping.\n" >&2
  98         return 0
  99     fi
 100     if [[ "$2" = "yes" && "$is_cgns_supported" = "no" ]];  then
 101         printf "Cgroup namespaces are not supported. Skipping.\n" >&2
 102         return 0
 103     fi
 104
 105     local _root="/var/lib/machines/unified-$1-cgns-$2-api-vfs-writable-$3"
 106     /create-busybox-container "$_root"
 107     UNIFIED_CGROUP_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn --register=no -D "$_root" -b
 108     UNIFIED_CGROUP_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn --register=no -D "$_root" --private-network -b
 109
 110     if UNIFIED_CGROUP_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn --register=no -D "$_root" -U -b; then
 111        [[ "$is_user_ns_supported" = "yes" && "$3" = "network" ]] && return 1
 112     else
 113        [[ "$is_user_ns_supported" = "no" && "$3" = "network" ]] && return 1
 114     fi
 115
 116     if UNIFIED_CGROUP_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn --register=no -D "$_root" --private-network -U -b; then
 117        [[ "$is_user_ns_supported" = "yes" && "$3" = "yes" ]] && return 1
 118     else
 119        [[ "$is_user_ns_supported" = "no" && "$3" = "yes" ]] && return 1
 120     fi
 121
 122     local _netns_opt="--network-namespace-path=/proc/self/ns/net"
 123
 124     # --network-namespace-path and network-related options cannot be used together
 125     if UNIFIED_CGROUP_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn --register=no -D "$_root" "$_netns_opt" --network-interface=lo -b; then
 126        return 1
 127     fi
 128
 129     if UNIFIED_CGROUP_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn --register=no -D "$_root" "$_netns_opt" --network-macvlan=lo -b; then
 130        return 1
 131     fi
 132
 133     if UNIFIED_CGROUP_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn --register=no -D "$_root" "$_netns_opt" --network-ipvlan=lo -b; then
 134        return 1
 135     fi
 136
 137     if UNIFIED_CGROUP_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn --register=no -D "$_root" "$_netns_opt" --network-veth -b; then
 138        return 1
 139     fi
 140
 141     if UNIFIED_CGROUP_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn --register=no -D "$_root" "$_netns_opt" --network-veth-extra=lo -b; then
 142        return 1
 143     fi
 144
 145     if UNIFIED_CGROUP_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn --register=no -D "$_root" "$_netns_opt" --network-bridge=lo -b; then
 146        return 1
 147     fi
 148
 149     if UNIFIED_CGROUP_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn --register=no -D "$_root" "$_netns_opt" --network-zone=zone -b; then
 150        return 1
 151     fi
 152
 153     if UNIFIED_CGROUP_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn --register=no -D "$_root" "$_netns_opt" --private-network -b; then
 154        return 1
 155     fi
 156
 157     # test --network-namespace-path works with a network namespace created by "ip netns"
 158     ip netns add nspawn_test
 159     _netns_opt="--network-namespace-path=/run/netns/nspawn_test"
 160     UNIFIED_CGROUP_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn --register=no -D "$_root" "$_netns_opt" /bin/ip a | grep -v -E '^1: lo.*UP'
 161     local r=$?
 162     ip netns del nspawn_test
 163
 164     if [ $r -ne 0 ]; then
 165        return 1
 166     fi
 167
 168     return 0
 169 }
 170
 171 check_bind_tmp_path
 172
 173 check_notification_socket
 174
 175 for api_vfs_writable in yes no network; do
 176     run no no $api_vfs_writable
 177     run yes no $api_vfs_writable
 178     run no yes $api_vfs_writable
 179     run yes yes $api_vfs_writable
 180 done
 181
 182 touch /testok
 183 EOF
 184
 185         chmod 0755 $initdir/test-nspawn.sh
 186         setup_testsuite
 187     ) || return 1
 188
 189     ddebug "umount $TESTDIR/root"
 190     umount $TESTDIR/root
 191 }
 192
 193 do_test "$@"