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