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98f654fdea
machinectl fails since 21935150a0 as it's now
mounting onto a file descriptor in a target namespace, without joining the
target's PID namespace.
Note that it's not enough to setns CLONE_NEWPID, but a double-fork is required
as well, as implemented by namespace_fork().
Add a test case to TEST-13-NSPAWN to cover this use case.
215 lines
8.5 KiB
Bash
Executable File
215 lines
8.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -x
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set -e
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set -u
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set -o pipefail
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export SYSTEMD_LOG_LEVEL=debug
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# check cgroup-v2
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is_v2_supported=no
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mkdir -p /tmp/cgroup2
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if mount -t cgroup2 cgroup2 /tmp/cgroup2; then
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is_v2_supported=yes
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umount /tmp/cgroup2
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fi
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rmdir /tmp/cgroup2
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# check cgroup namespaces
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is_cgns_supported=no
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if [[ -f /proc/1/ns/cgroup ]]; then
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is_cgns_supported=yes
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fi
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is_user_ns_supported=no
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# On some systems (e.g. CentOS 7) the default limit for user namespaces
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# is set to 0, which causes the following unshare syscall to fail, even
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# with enabled user namespaces support. By setting this value explicitly
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# we can ensure the user namespaces support to be detected correctly.
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sysctl -w user.max_user_namespaces=10000
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if unshare -U sh -c :; then
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is_user_ns_supported=yes
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fi
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SUSE_OPTS=""
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ID_LIKE=$(awk -F= '$1=="ID_LIKE" { print $2 ;}' /etc/os-release)
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if [[ "$ID_LIKE" = *"suse"* ]]; then
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SUSE_OPTS="--bind /lib64 --bind /usr/lib64 "
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fi
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function check_bind_tmp_path {
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# https://github.com/systemd/systemd/issues/4789
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local _root="/var/lib/machines/testsuite-13.bind-tmp-path"
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rm -rf "$_root"
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/usr/lib/systemd/tests/testdata/create-busybox-container "$_root"
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>/tmp/bind
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systemd-nspawn $SUSE_OPTS--register=no -D "$_root" --bind=/tmp/bind /bin/sh -c 'test -e /tmp/bind'
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}
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function check_norbind {
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# https://github.com/systemd/systemd/issues/13170
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local _root="/var/lib/machines/testsuite-13.norbind-path"
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rm -rf "$_root"
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mkdir -p /tmp/binddir/subdir
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echo -n "outer" > /tmp/binddir/subdir/file
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mount -t tmpfs tmpfs /tmp/binddir/subdir
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echo -n "inner" > /tmp/binddir/subdir/file
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/usr/lib/systemd/tests/testdata/create-busybox-container "$_root"
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systemd-nspawn $SUSE_OPTS--register=no -D "$_root" --bind=/tmp/binddir:/mnt:norbind /bin/sh -c 'CONTENT=$(cat /mnt/subdir/file); if [[ $CONTENT != "outer" ]]; then echo "*** unexpected content: $CONTENT"; return 1; fi'
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}
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function check_notification_socket {
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# https://github.com/systemd/systemd/issues/4944
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local _cmd='echo a | $(busybox which nc) -U -u -w 1 /run/host/notify'
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# /testsuite-13.nc-container is prepared by test.sh
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systemd-nspawn $SUSE_OPTS--register=no -D /testsuite-13.nc-container /bin/sh -x -c "$_cmd"
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systemd-nspawn $SUSE_OPTS--register=no -D /testsuite-13.nc-container -U /bin/sh -x -c "$_cmd"
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}
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function check_os_release {
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local _cmd='. /tmp/os-release
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if [ -n "${ID:+set}" ] && [ "${ID}" != "${container_host_id}" ]; then exit 1; fi
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if [ -n "${VERSION_ID:+set}" ] && [ "${VERSION_ID}" != "${container_host_version_id}" ]; then exit 1; fi
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if [ -n "${BUILD_ID:+set}" ] && [ "${BUILD_ID}" != "${container_host_build_id}" ]; then exit 1; fi
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if [ -n "${VARIANT_ID:+set}" ] && [ "${VARIANT_ID}" != "${container_host_variant_id}" ]; then exit 1; fi
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cd /tmp; (cd /run/host; md5sum os-release) | md5sum -c
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if echo test >> /run/host/os-release; then exit 1; fi
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'
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local _os_release_source="/etc/os-release"
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if [ ! -r "${_os_release_source}" ]; then
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_os_release_source="/usr/lib/os-release"
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elif [ -L "${_os_release_source}" ] && rm /etc/os-release; then
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# Ensure that /etc always wins if available
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cp /usr/lib/os-release /etc
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echo MARKER=1 >> /etc/os-release
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fi
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systemd-nspawn $SUSE_OPTS--register=no -D /testsuite-13.nc-container --bind="${_os_release_source}":/tmp/os-release /bin/sh -x -e -c "$_cmd"
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if grep -q MARKER /etc/os-release; then
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rm /etc/os-release
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ln -s ../usr/lib/os-release /etc/os-release
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fi
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}
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function check_machinectl_bind {
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local _cmd='for i in $(seq 1 20); do if test -f /tmp/marker; then exit 0; fi; sleep 0.5; done; exit 1;'
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cat <<EOF > /run/systemd/system/nspawn_machinectl_bind.service
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[Service]
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Type=notify
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ExecStart=systemd-nspawn $SUSE_OPTS -D /testsuite-13.nc-container --notify-ready=no /bin/sh -x -e -c "$_cmd"
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EOF
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systemctl start nspawn_machinectl_bind.service
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touch /tmp/marker
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machinectl bind --mkdir testsuite-13.nc-container /tmp/marker
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while systemctl show -P SubState nspawn_machinectl_bind.service | grep -q running
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do
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sleep 0.1
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done
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return $(systemctl show -P ExecMainStatus nspawn_machinectl_bind.service)
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}
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function run {
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if [[ "$1" = "yes" && "$is_v2_supported" = "no" ]]; then
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printf "Unified cgroup hierarchy is not supported. Skipping.\n" >&2
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return 0
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fi
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if [[ "$2" = "yes" && "$is_cgns_supported" = "no" ]]; then
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printf "CGroup namespaces are not supported. Skipping.\n" >&2
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return 0
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fi
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local _root="/var/lib/machines/testsuite-13.unified-$1-cgns-$2-api-vfs-writable-$3"
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rm -rf "$_root"
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/usr/lib/systemd/tests/testdata/create-busybox-container "$_root"
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SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn $SUSE_OPTS--register=no -D "$_root" -b
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SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn $SUSE_OPTS--register=no -D "$_root" --private-network -b
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if SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn $SUSE_OPTS--register=no -D "$_root" -U -b; then
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[[ "$is_user_ns_supported" = "yes" && "$3" = "network" ]] && return 1
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else
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[[ "$is_user_ns_supported" = "no" && "$3" = "network" ]] && return 1
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fi
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if SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn $SUSE_OPTS--register=no -D "$_root" --private-network -U -b; then
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[[ "$is_user_ns_supported" = "yes" && "$3" = "yes" ]] && return 1
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else
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[[ "$is_user_ns_supported" = "no" && "$3" = "yes" ]] && return 1
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fi
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local _netns_opt="--network-namespace-path=/proc/self/ns/net"
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# --network-namespace-path and network-related options cannot be used together
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if SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn $SUSE_OPTS--register=no -D "$_root" "$_netns_opt" --network-interface=lo -b; then
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return 1
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fi
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if SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn $SUSE_OPTS--register=no -D "$_root" "$_netns_opt" --network-macvlan=lo -b; then
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return 1
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fi
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if SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn $SUSE_OPTS--register=no -D "$_root" "$_netns_opt" --network-ipvlan=lo -b; then
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return 1
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fi
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if SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn $SUSE_OPTS--register=no -D "$_root" "$_netns_opt" --network-veth -b; then
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return 1
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fi
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if SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn $SUSE_OPTS--register=no -D "$_root" "$_netns_opt" --network-veth-extra=lo -b; then
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return 1
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fi
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if SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn $SUSE_OPTS--register=no -D "$_root" "$_netns_opt" --network-bridge=lo -b; then
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return 1
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fi
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if SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn $SUSE_OPTS--register=no -D "$_root" "$_netns_opt" --network-zone=zone -b; then
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return 1
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fi
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# allow combination of --network-namespace-path and --private-network
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if ! SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn $SUSE_OPTS--register=no -D "$_root" "$_netns_opt" --private-network -b; then
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return 1
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fi
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# test --network-namespace-path works with a network namespace created by "ip netns"
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ip netns add nspawn_test
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_netns_opt="--network-namespace-path=/run/netns/nspawn_test"
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SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn $SUSE_OPTS--register=no -D "$_root" "$_netns_opt" /bin/ip a | grep -v -E '^1: lo.*UP'
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local r=$?
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ip netns del nspawn_test
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if [ $r -ne 0 ]; then
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return 1
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fi
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return 0
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}
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check_bind_tmp_path
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check_norbind
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check_notification_socket
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check_os_release
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for api_vfs_writable in yes no network; do
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run no no $api_vfs_writable
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run yes no $api_vfs_writable
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run no yes $api_vfs_writable
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run yes yes $api_vfs_writable
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done
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check_machinectl_bind
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touch /testok
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