test: add a couple of tests for machinectl

This commit is contained in:
Frantisek Sumsal 2023-05-12 17:39:41 +02:00
parent efdaa92ecb
commit 378db9e2b9
5 changed files with 582 additions and 367 deletions

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@ -5,6 +5,11 @@ set -e
TEST_DESCRIPTION="systemd-nspawn smoke test"
IMAGE_NAME="nspawn"
TEST_NO_NSPAWN=1
# The test containers are missing the $BUILD_DIR with the necessary note files
# which generates lots of errors regarding missing coverage. Since fixing this
# would make the test code unnecessarily messy, let's just ignore them, at least
# for now.
IGNORE_MISSING_COVERAGE=yes
# shellcheck source=test/test-functions
. "${TEST_BASE_DIR:?}/test-functions"

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@ -193,6 +193,7 @@ BASICTOOLS=(
loadkeys
login
losetup
lsattr
lz4cat
mkfifo
mknod

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@ -0,0 +1,197 @@
#!/usr/bin/env bash
# SPDX-License-Identifier: LGPL-2.1-or-later
# shellcheck disable=SC2016
set -eux
set -o pipefail
export PAGER=
CREATE_BB_CONTAINER="/usr/lib/systemd/tests/testdata/create-busybox-container"
at_exit() {
set +e
machinectl status long-running >/dev/null && machinectl kill --signal=KILL long-running
mountpoint -q /var/lib/machines && timeout 10 sh -c "while ! umount /var/lib/machines; do sleep .5; done"
}
trap at_exit EXIT
# Mount tmpfs over /var/lib/machines to not pollute the image
mkdir -p /var/lib/machines
mount -t tmpfs tmpfs /var/lib/machines
# Create a couple of containers we can refer to in tests
for i in {0..4}; do
"$CREATE_BB_CONTAINER" "/var/lib/machines/container$i"
machinectl start "container$i"
done
# Create one "long running" container with some basic signal handling
"$CREATE_BB_CONTAINER" /var/lib/machines/long-running
cat >/var/lib/machines/long-running/sbin/init <<\EOF
#!/bin/sh -x
#
PID=0
# sh doesn't recognize RTMIN+4, so we have to use the signal number directly
trap "touch /poweroff" 38
trap "touch /reboot" INT
trap "touch /trap" TRAP
trap 'kill $PID' EXIT
# We need to wait for the sleep process asynchronously in order to allow
# bash to process signals
sleep infinity &
PID=$!
while :; do
wait || :
done
EOF
machinectl start long-running
machinectl
machinectl --no-pager --help
machinectl --version
machinectl list
machinectl list --no-legend --no-ask-password
machinectl status long-running long-running long-running
machinectl status --full long-running
machinectl status --quiet --lines=1 long-running
machinectl status --lines=0 --max-addresses=0 long-running
machinectl status --machine=testuser@.host long-running
machinectl status --output=help long-running
while read -r output; do
machinectl status --output="$output" long-running
done < <(machinectl --output=help)
machinectl show
machinectl show --all
machinectl show --all --machine=root@
machinectl show --all --machine=testuser@
[[ "$(machinectl show --property=PoolPath --value)" == "/var/lib/machines" ]]
machinectl show long-running
machinectl show long-running long-running long-running --all
[[ "$(machinectl show --property=RootDirectory --value long-running)" == "/var/lib/machines/long-running" ]]
machinectl enable long-running
test -L /etc/systemd/system/machines.target.wants/systemd-nspawn@long-running.service
machinectl enable long-running long-running long-running container1
machinectl disable long-running
test ! -L /etc/systemd/system/machines.target.wants/systemd-nspawn@long-running.service
machinectl disable long-running long-running long-running container1
[[ "$(machinectl shell testuser@ /bin/sh -c 'echo -ne $FOO')" == "" ]]
[[ "$(machinectl shell --setenv=FOO=bar testuser@ /bin/sh -c 'echo -ne $FOO')" == "bar" ]]
[[ "$(machinectl show --property=State --value long-running)" == "running" ]]
# Equivalent to machinectl kill --signal=SIGRTMIN+4 --kill-whom=leader
rm -f /var/lib/machines/long-running/poweroff
machinectl poweroff long-running
test -e /var/lib/machines/long-running/poweroff
machinectl poweroff long-running long-running long-running
# Equivalent to machinectl kill --signal=SIGINT --kill-whom=leader
rm -f /var/lib/machines/long-running/reboot
machinectl reboot long-running
test -e /var/lib/machines/long-running/reboot
machinectl reboot long-running long-running long-running
# Skip machinectl terminate for now, as it doesn't play well with our "init"
rm -f /var/lib/machines/long-running/trap
machinectl kill --signal=SIGTRAP --kill-whom=leader long-running
test -e /var/lib/machines/long-running/trap
machinectl kill --signal=SIGTRAP --kill-whom=leader long-running long-running long-running
# All used signals should've been caught by a handler
[[ "$(machinectl show --property=State --value long-running)" == "running" ]]
cp /etc/machine-id /tmp/foo
machinectl copy-to long-running /tmp/foo /root/foo
test -f /var/lib/machines/long-running/root/foo
machinectl copy-from long-running /root/foo /tmp/bar
diff /tmp/foo /tmp/bar
rm -f /tmp/{foo,bar}
# machinectl bind is covered by testcase_check_machinectl_bind() in nspawn tests
machinectl list-images
machinectl list-images --no-legend
machinectl image-status
machinectl image-status container1
machinectl image-status container1 container1 container{0..4}
machinectl show-image
machinectl show-image container1
machinectl show-image container1 container1 container{0..4}
machinectl clone container1 clone1
machinectl show-image clone1
machinectl rename clone1 clone2
(! machinectl show-image clone1)
machinectl show-image clone2
if lsattr -d /var/lib/machines >/dev/null; then
[[ "$(machinectl show-image --property=ReadOnly --value clone2)" == no ]]
machinectl read-only clone2 yes
[[ "$(machinectl show-image --property=ReadOnly --value clone2)" == yes ]]
machinectl read-only clone2 no
[[ "$(machinectl show-image --property=ReadOnly --value clone2)" == no ]]
fi
machinectl remove clone2
for i in {0..4}; do
machinectl clone container1 "clone$i"
done
machinectl remove clone{0..4}
for i in {0..4}; do
machinectl clone container1 ".hidden$i"
done
machinectl list-images --all
test -d /var/lib/machines/.hidden1
machinectl clean
test ! -d /var/lib/machines/.hidden1
# Prepare a simple raw container
mkdir -p /tmp/mnt
dd if=/dev/zero of=/tmp/container.raw bs=1M count=32
mkfs.ext4 /tmp/container.raw
mount -o loop /tmp/container.raw /tmp/mnt
cp -r /var/lib/machines/container1/* /tmp/mnt
umount /tmp/mnt
# Try to import it, run it, export it, and re-import it
machinectl import-raw /tmp/container.raw container-raw
[[ "$(machinectl show-image --property=Type --value container-raw)" == "raw" ]]
machinectl start container-raw
machinectl export-raw container-raw /tmp/container-export.raw
machinectl import-raw /tmp/container-export.raw container-raw-reimport
[[ "$(machinectl show-image --property=Type --value container-raw-reimport)" == "raw" ]]
rm -f /tmp/container{,-export}.raw
# Prepare a simple tar.gz container
tar -pczf /tmp/container.tar.gz -C /var/lib/machines/container1 .
# Try to import it, run it, export it, and re-import it
machinectl import-tar /tmp/container.tar.gz container-tar
[[ "$(machinectl show-image --property=Type --value container-tar)" == "directory" ]]
machinectl start container-tar
machinectl export-tar container-tar /tmp/container-export.tar.gz
machinectl import-tar /tmp/container-export.tar.gz container-tar-reimport
[[ "$(machinectl show-image --property=Type --value container-tar-reimport)" == "directory" ]]
rm -f /tmp/container{,-export}.tar.gz
# Try to import a container directory & run it
cp -r /var/lib/machines/container1 /tmp/container.dir
machinectl import-fs /tmp/container.dir container-dir
[[ "$(machinectl show-image --property=Type --value container-dir)" == "directory" ]]
machinectl start container-dir
rm -fr /tmp/container.dir
timeout 10 sh -c "while ! machinectl clean --all; do sleep .5; done"
for opt in format lines machine max-addresses output setenv verify; do
(! machinectl status "--$opt=" long-running)
(! machinectl status "--$opt=-1" long-running)
(! machinectl status "--$opt=''" long-running)
done
(! machinectl show "")
(! machinectl enable)
(! machinectl enable "")
(! machinectl disable)
(! machinectl disable "")
(! machinectl read-only container1 "")
(! machinectl read-only container1 foo)
(! machinectl read-only container1 -- -1)

374
test/units/testsuite-13.nspawn.sh Executable file
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@ -0,0 +1,374 @@
#!/usr/bin/env bash
# SPDX-License-Identifier: LGPL-2.1-or-later
# shellcheck disable=SC2016
set -eux
set -o pipefail
export SYSTEMD_LOG_LEVEL=debug
export SYSTEMD_LOG_TARGET=journal
CREATE_BB_CONTAINER="/usr/lib/systemd/tests/testdata/create-busybox-container"
at_exit() {
set +e
mountpoint -q /var/lib/machines && umount /var/lib/machines
}
trap at_exit EXIT
# check cgroup-v2
IS_CGROUPSV2_SUPPORTED=no
mkdir -p /tmp/cgroup2
if mount -t cgroup2 cgroup2 /tmp/cgroup2; then
IS_CGROUPSV2_SUPPORTED=yes
umount /tmp/cgroup2
fi
rmdir /tmp/cgroup2
# check cgroup namespaces
IS_CGNS_SUPPORTED=no
if [[ -f /proc/1/ns/cgroup ]]; then
IS_CGNS_SUPPORTED=yes
fi
IS_USERNS_SUPPORTED=no
# On some systems (e.g. CentOS 7) the default limit for user namespaces
# is set to 0, which causes the following unshare syscall to fail, even
# with enabled user namespaces support. By setting this value explicitly
# we can ensure the user namespaces support to be detected correctly.
sysctl -w user.max_user_namespaces=10000
if unshare -U sh -c :; then
IS_USERNS_SUPPORTED=yes
fi
# Mount tmpfs over /var/lib/machines to not pollute the image
mkdir -p /var/lib/machines
mount -t tmpfs tmpfs /var/lib/machines
testcase_check_bind_tmp_path() {
# https://github.com/systemd/systemd/issues/4789
local root
root="$(mktemp -d /var/lib/machines/testsuite-13.bind-tmp-path.XXX)"
"$CREATE_BB_CONTAINER" "$root"
: >/tmp/bind
systemd-nspawn --register=no \
--directory="$root" \
--bind=/tmp/bind \
/bin/sh -c 'test -e /tmp/bind'
rm -fr "$root" /tmp/bind
}
testcase_check_norbind() {
# https://github.com/systemd/systemd/issues/13170
local root
root="$(mktemp -d /var/lib/machines/testsuite-13.norbind-path.XXX)"
mkdir -p /tmp/binddir/subdir
echo -n "outer" >/tmp/binddir/subdir/file
mount -t tmpfs tmpfs /tmp/binddir/subdir
echo -n "inner" >/tmp/binddir/subdir/file
"$CREATE_BB_CONTAINER" "$root"
systemd-nspawn --register=no \
--directory="$root" \
--bind=/tmp/binddir:/mnt:norbind \
/bin/sh -c 'CONTENT=$(cat /mnt/subdir/file); if [[ $CONTENT != "outer" ]]; then echo "*** unexpected content: $CONTENT"; return 1; fi'
umount /tmp/binddir/subdir
rm -fr "$root" /tmp/binddir/
}
check_rootidmap_cleanup() {
local dir="${1:?}"
mountpoint -q "$dir/bind" && umount "$dir/bind"
rm -fr "$dir"
}
testcase_check_rootidmap() {
local root cmd permissions
local owner=1000
root="$(mktemp -d /var/lib/machines/testsuite-13.rootidmap-path.XXX)"
# Create ext4 image, as ext4 supports idmapped-mounts.
mkdir -p /tmp/rootidmap/bind
dd if=/dev/zero of=/tmp/rootidmap/ext4.img bs=4k count=2048
mkfs.ext4 /tmp/rootidmap/ext4.img
mount /tmp/rootidmap/ext4.img /tmp/rootidmap/bind
trap "check_rootidmap_cleanup /tmp/rootidmap/" RETURN
touch /tmp/rootidmap/bind/file
chown -R "$owner:$owner" /tmp/rootidmap/bind
"$CREATE_BB_CONTAINER" "$root"
cmd='PERMISSIONS=$(stat -c "%u:%g" /mnt/file); if [[ $PERMISSIONS != "0:0" ]]; then echo "*** wrong permissions: $PERMISSIONS"; return 1; fi; touch /mnt/other_file'
if ! SYSTEMD_LOG_TARGET=console \
systemd-nspawn --register=no \
--directory="$root" \
--bind=/tmp/rootidmap/bind:/mnt:rootidmap \
/bin/sh -c "$cmd" |& tee nspawn.out; then
if grep -q "Failed to map ids for bind mount.*: Function not implemented" nspawn.out; then
echo "idmapped mounts are not supported, skipping the test..."
return 0
fi
return 1
fi
permissions=$(stat -c "%u:%g" /tmp/rootidmap/bind/other_file)
if [[ $permissions != "$owner:$owner" ]]; then
echo "*** wrong permissions: $permissions"
[[ "$IS_USERNS_SUPPORTED" == "yes" ]] && return 1
fi
}
testcase_check_notification_socket() {
# https://github.com/systemd/systemd/issues/4944
local cmd='echo a | $(busybox which nc) -U -u -w 1 /run/host/notify'
# /testsuite-13.nc-container is prepared by test.sh
systemd-nspawn --register=no --directory=/testsuite-13.nc-container /bin/sh -x -c "$cmd"
systemd-nspawn --register=no --directory=/testsuite-13.nc-container -U /bin/sh -x -c "$cmd"
}
testcase_check_os_release() {
local root entrypoint os_release_source
root="$(mktemp -d /var/lib/machines/testsuite-13.check-os-release.XXX)"
"$CREATE_BB_CONTAINER" "$root"
entrypoint="$root/entrypoint.sh"
cat >"$entrypoint" <<\EOF
#!/bin/sh -ex
. /tmp/os-release
[[ -n "${ID:-}" && "$ID" != "$container_host_id" ]] && exit 1
[[ -n "${VERSION_ID:-}" && "$VERSION_ID" != "$container_host_version_id" ]] && exit 1
[[ -n "${BUILD_ID:-}" && "$BUILD_ID" != "$container_host_build_id" ]] && exit 1
[[ -n "${VARIANT_ID:-}" && "$VARIANT_ID" != "$container_host_variant_id" ]] && exit 1
cd /tmp
(cd /run/host && md5sum os-release) | md5sum -c
EOF
chmod +x "$entrypoint"
os_release_source="/etc/os-release"
if [[ ! -r "$os_release_source" ]]; then
os_release_source="/usr/lib/os-release"
elif [[ -L "$os_release_source" ]]; then
# Ensure that /etc always wins if available
cp --remove-destination -fv /usr/lib/os-release /etc/os-release
echo MARKER=1 >>/etc/os-release
fi
systemd-nspawn --register=no \
--directory="$root" \
--bind="$os_release_source:/tmp/os-release" \
"${entrypoint##"$root"}"
if grep -q MARKER /etc/os-release; then
ln -svrf /usr/lib/os-release /etc/os-release
fi
rm -fr "$root"
}
testcase_check_machinectl_bind() {
local service_path service_name root container_name ec
local cmd='for i in $(seq 1 20); do if test -f /tmp/marker; then exit 0; fi; usleep 500000; done; exit 1;'
root="$(mktemp -d /var/lib/machines/testsuite-13.check-machinectl-bind.XXX)"
"$CREATE_BB_CONTAINER" "$root"
container_name="${root##*/}"
service_path="$(mktemp /run/systemd/system/nspawn-machinectl-bind-XXX.service)"
service_name="${service_path##*/}"
cat >"$service_path" <<EOF
[Service]
Type=notify
ExecStart=systemd-nspawn --directory="$root" --notify-ready=no /bin/sh -xec "$cmd"
EOF
systemctl daemon-reload
systemctl start "$service_name"
touch /tmp/marker
machinectl bind --mkdir "$container_name" /tmp/marker
timeout 10 bash -c "while [[ '\$(systemctl show -P SubState $service_name)' == running ]]; do sleep .2; done"
ec="$(systemctl show -P ExecMainStatus "$service_name")"
rm -fr "$root" "$service_path"
return "$ec"
}
testcase_check_selinux() {
# Basic test coverage to avoid issues like https://github.com/systemd/systemd/issues/19976
if ! command -v selinuxenabled >/dev/null || ! selinuxenabled; then
echo >&2 "SELinux is not enabled, skipping SELinux-related tests"
return 0
fi
local root
root="$(mktemp -d /var/lib/machines/testsuite-13.check-selinux.XXX)"
"$CREATE_BB_CONTAINER" "$root"
chcon -R -t container_t "$root"
systemd-nspawn --register=no \
--boot \
--directory="$root" \
--selinux-apifs-context=system_u:object_r:container_file_t:s0:c0,c1 \
--selinux-context=system_u:system_r:container_t:s0:c0,c1
rm -fr "$root"
}
testcase_check_ephemeral_config() {
# https://github.com/systemd/systemd/issues/13297
local root container_name
root="$(mktemp -d /var/lib/machines/testsuite-13.check-ephemeral-config.XXX)"
"$CREATE_BB_CONTAINER" "$root"
container_name="${root##*/}"
mkdir -p /run/systemd/nspawn/
cat >"/run/systemd/nspawn/$container_name.nspawn" <<EOF
[Files]
BindReadOnly=/tmp/ephemeral-config
EOF
touch /tmp/ephemeral-config
systemd-nspawn --register=no \
--directory="$root" \
--ephemeral \
/bin/sh -x -c "test -f /tmp/ephemeral-config"
systemd-nspawn --register=no \
--directory="$root" \
--ephemeral \
--machine=foobar \
/bin/sh -x -c "! test -f /tmp/ephemeral-config"
rm -fr "$root" "/run/systemd/nspawn/$container_name"
}
matrix_run_one() {
local cgroupsv2="${1:?}"
local use_cgns="${2:?}"
local api_vfs_writable="${3:?}"
local root
if [[ "$cgroupsv2" == "yes" && "$IS_CGROUPSV2_SUPPORTED" == "no" ]]; then
echo >&2 "Unified cgroup hierarchy is not supported, skipping..."
return 0
fi
if [[ "$use_cgns" == "yes" && "$IS_CGNS_SUPPORTED" == "no" ]]; then
echo >&2 "CGroup namespaces are not supported, skipping..."
return 0
fi
root="$(mktemp -d "/var/lib/machines/testsuite-13.unified-$1-cgns-$2-api-vfs-writable-$3.XXX")"
"$CREATE_BB_CONTAINER" "$root"
SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$cgroupsv2" SYSTEMD_NSPAWN_USE_CGNS="$use_cgns" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$api_vfs_writable" \
systemd-nspawn --register=no \
--directory="$root" \
--boot
SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$cgroupsv2" SYSTEMD_NSPAWN_USE_CGNS="$use_cgns" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$api_vfs_writable" \
systemd-nspawn --register=no \
--directory="$root" \
--private-network \
--boot
if SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$cgroupsv2" SYSTEMD_NSPAWN_USE_CGNS="$use_cgns" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$api_vfs_writable" \
systemd-nspawn --register=no \
--directory="$root" \
--private-users=pick \
--boot; then
[[ "$IS_USERNS_SUPPORTED" == "yes" && "$api_vfs_writable" == "network" ]] && return 1
else
[[ "$IS_USERNS_SUPPORTED" == "no" && "$api_vfs_writable" = "network" ]] && return 1
fi
if SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$cgroupsv2" SYSTEMD_NSPAWN_USE_CGNS="$use_cgns" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$api_vfs_writable" \
systemd-nspawn --register=no \
--directory="$root" \
--private-network \
--private-users=pick \
--boot; then
[[ "$IS_USERNS_SUPPORTED" == "yes" && "$api_vfs_writable" == "yes" ]] && return 1
else
[[ "$IS_USERNS_SUPPORTED" == "no" && "$api_vfs_writable" = "yes" ]] && return 1
fi
local netns_opt="--network-namespace-path=/proc/self/ns/net"
local net_opt
local net_opts=(
"--network-bridge=lo"
"--network-interface=lo"
"--network-ipvlan=lo"
"--network-macvlan=lo"
"--network-veth"
"--network-veth-extra=lo"
"--network-zone=zone"
)
# --network-namespace-path and network-related options cannot be used together
for net_opt in "${net_opts[@]}"; do
echo "$netns_opt in combination with $net_opt should fail"
if SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$cgroupsv2" SYSTEMD_NSPAWN_USE_CGNS="$use_cgns" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$api_vfs_writable" \
systemd-nspawn --register=no \
--directory="$root" \
--boot \
"$netns_opt" \
"$net_opt"; then
echo >&2 "unexpected pass"
return 1
fi
done
# allow combination of --network-namespace-path and --private-network
SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$cgroupsv2" SYSTEMD_NSPAWN_USE_CGNS="$use_cgns" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$api_vfs_writable" \
systemd-nspawn --register=no \
--directory="$root" \
--boot \
--private-network \
"$netns_opt"
# test --network-namespace-path works with a network namespace created by "ip netns"
ip netns add nspawn_test
netns_opt="--network-namespace-path=/run/netns/nspawn_test"
SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$cgroupsv2" SYSTEMD_NSPAWN_USE_CGNS="$use_cgns" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$api_vfs_writable" \
systemd-nspawn --register=no \
--directory="$root" \
--network-namespace-path=/run/netns/nspawn_test \
/bin/ip a | grep -v -E '^1: lo.*UP'
ip netns del nspawn_test
rm -fr "$root"
return 0
}
# Create a list of all functions prefixed with testcase_
mapfile -t TESTCASES < <(declare -F | awk '$3 ~ /^testcase_/ {print $3;}')
if [[ "${#TESTCASES[@]}" -eq 0 ]]; then
echo >&2 "No test cases found, this is most likely an error"
exit 1
fi
for testcase in "${TESTCASES[@]}"; do
"$testcase"
done
for api_vfs_writable in yes no network; do
matrix_run_one no no $api_vfs_writable
matrix_run_one yes no $api_vfs_writable
matrix_run_one no yes $api_vfs_writable
matrix_run_one yes yes $api_vfs_writable
done

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@ -1,376 +1,14 @@
#!/usr/bin/env bash
# SPDX-License-Identifier: LGPL-2.1-or-later
# shellcheck disable=SC2016
set -eux
set -o pipefail
export SYSTEMD_LOG_LEVEL=debug
export SYSTEMD_LOG_TARGET=journal
CREATE_BB_CONTAINER="/usr/lib/systemd/tests/testdata/create-busybox-container"
# shellcheck source=test/units/test-control.sh
. "$(dirname "$0")"/test-control.sh
at_exit() {
set +e
: >/failed
mountpoint -q /var/lib/machines && umount /var/lib/machines
}
trap at_exit EXIT
# check cgroup-v2
IS_CGROUPSV2_SUPPORTED=no
mkdir -p /tmp/cgroup2
if mount -t cgroup2 cgroup2 /tmp/cgroup2; then
IS_CGROUPSV2_SUPPORTED=yes
umount /tmp/cgroup2
fi
rmdir /tmp/cgroup2
# check cgroup namespaces
IS_CGNS_SUPPORTED=no
if [[ -f /proc/1/ns/cgroup ]]; then
IS_CGNS_SUPPORTED=yes
fi
IS_USERNS_SUPPORTED=no
# On some systems (e.g. CentOS 7) the default limit for user namespaces
# is set to 0, which causes the following unshare syscall to fail, even
# with enabled user namespaces support. By setting this value explicitly
# we can ensure the user namespaces support to be detected correctly.
sysctl -w user.max_user_namespaces=10000
if unshare -U sh -c :; then
IS_USERNS_SUPPORTED=yes
fi
# Mount tmpfs over /var/lib/machines to not pollute the image
mkdir -p /var/lib/machines
mount -t tmpfs tmpfs /var/lib/machines
testcase_check_bind_tmp_path() {
# https://github.com/systemd/systemd/issues/4789
local root
root="$(mktemp -d /var/lib/machines/testsuite-13.bind-tmp-path.XXX)"
"$CREATE_BB_CONTAINER" "$root"
: >/tmp/bind
systemd-nspawn --register=no \
--directory="$root" \
--bind=/tmp/bind \
/bin/sh -c 'test -e /tmp/bind'
rm -fr "$root" /tmp/bind
}
testcase_check_norbind() {
# https://github.com/systemd/systemd/issues/13170
local root
root="$(mktemp -d /var/lib/machines/testsuite-13.norbind-path.XXX)"
mkdir -p /tmp/binddir/subdir
echo -n "outer" >/tmp/binddir/subdir/file
mount -t tmpfs tmpfs /tmp/binddir/subdir
echo -n "inner" >/tmp/binddir/subdir/file
"$CREATE_BB_CONTAINER" "$root"
systemd-nspawn --register=no \
--directory="$root" \
--bind=/tmp/binddir:/mnt:norbind \
/bin/sh -c 'CONTENT=$(cat /mnt/subdir/file); if [[ $CONTENT != "outer" ]]; then echo "*** unexpected content: $CONTENT"; return 1; fi'
umount /tmp/binddir/subdir
rm -fr "$root" /tmp/binddir/
}
check_rootidmap_cleanup() {
local dir="${1:?}"
mountpoint -q "$dir/bind" && umount "$dir/bind"
rm -fr "$dir"
}
testcase_check_rootidmap() {
local root cmd permissions
local owner=1000
root="$(mktemp -d /var/lib/machines/testsuite-13.rootidmap-path.XXX)"
# Create ext4 image, as ext4 supports idmapped-mounts.
mkdir -p /tmp/rootidmap/bind
dd if=/dev/zero of=/tmp/rootidmap/ext4.img bs=4k count=2048
mkfs.ext4 /tmp/rootidmap/ext4.img
mount /tmp/rootidmap/ext4.img /tmp/rootidmap/bind
trap "check_rootidmap_cleanup /tmp/rootidmap/" RETURN
touch /tmp/rootidmap/bind/file
chown -R "$owner:$owner" /tmp/rootidmap/bind
"$CREATE_BB_CONTAINER" "$root"
cmd='PERMISSIONS=$(stat -c "%u:%g" /mnt/file); if [[ $PERMISSIONS != "0:0" ]]; then echo "*** wrong permissions: $PERMISSIONS"; return 1; fi; touch /mnt/other_file'
if ! SYSTEMD_LOG_TARGET=console \
systemd-nspawn --register=no \
--directory="$root" \
--bind=/tmp/rootidmap/bind:/mnt:rootidmap \
/bin/sh -c "$cmd" |& tee nspawn.out; then
if grep -q "Failed to map ids for bind mount.*: Function not implemented" nspawn.out; then
echo "idmapped mounts are not supported, skipping the test..."
return 0
fi
return 1
fi
permissions=$(stat -c "%u:%g" /tmp/rootidmap/bind/other_file)
if [[ $permissions != "$owner:$owner" ]]; then
echo "*** wrong permissions: $permissions"
[[ "$IS_USERNS_SUPPORTED" == "yes" ]] && return 1
fi
}
testcase_check_notification_socket() {
# https://github.com/systemd/systemd/issues/4944
local cmd='echo a | $(busybox which nc) -U -u -w 1 /run/host/notify'
# /testsuite-13.nc-container is prepared by test.sh
systemd-nspawn --register=no --directory=/testsuite-13.nc-container /bin/sh -x -c "$cmd"
systemd-nspawn --register=no --directory=/testsuite-13.nc-container -U /bin/sh -x -c "$cmd"
}
testcase_check_os_release() {
local root entrypoint os_release_source
root="$(mktemp -d /var/lib/machines/testsuite-13.check-os-release.XXX)"
"$CREATE_BB_CONTAINER" "$root"
entrypoint="$root/entrypoint.sh"
cat >"$entrypoint" <<\EOF
#!/bin/sh -ex
. /tmp/os-release
[[ -n "${ID:-}" && "$ID" != "$container_host_id" ]] && exit 1
[[ -n "${VERSION_ID:-}" && "$VERSION_ID" != "$container_host_version_id" ]] && exit 1
[[ -n "${BUILD_ID:-}" && "$BUILD_ID" != "$container_host_build_id" ]] && exit 1
[[ -n "${VARIANT_ID:-}" && "$VARIANT_ID" != "$container_host_variant_id" ]] && exit 1
cd /tmp
(cd /run/host && md5sum os-release) | md5sum -c
EOF
chmod +x "$entrypoint"
os_release_source="/etc/os-release"
if [[ ! -r "$os_release_source" ]]; then
os_release_source="/usr/lib/os-release"
elif [[ -L "$os_release_source" ]]; then
# Ensure that /etc always wins if available
cp --remove-destination -fv /usr/lib/os-release /etc/os-release
echo MARKER=1 >>/etc/os-release
fi
systemd-nspawn --register=no \
--directory="$root" \
--bind="$os_release_source:/tmp/os-release" \
"${entrypoint##"$root"}"
if grep -q MARKER /etc/os-release; then
ln -svrf /usr/lib/os-release /etc/os-release
fi
rm -fr "$root"
}
testcase_check_machinectl_bind() {
local service_path service_name root container_name ec
local cmd='for i in $(seq 1 20); do if test -f /tmp/marker; then exit 0; fi; usleep 500000; done; exit 1;'
root="$(mktemp -d /var/lib/machines/testsuite-13.check-machinectl-bind.XXX)"
"$CREATE_BB_CONTAINER" "$root"
container_name="${root##*/}"
service_path="$(mktemp /run/systemd/system/nspawn-machinectl-bind-XXX.service)"
service_name="${service_path##*/}"
cat >"$service_path" <<EOF
[Service]
Type=notify
ExecStart=systemd-nspawn --directory="$root" --notify-ready=no /bin/sh -xec "$cmd"
EOF
systemctl daemon-reload
systemctl start "$service_name"
touch /tmp/marker
machinectl bind --mkdir "$container_name" /tmp/marker
timeout 10 bash -c "while [[ '\$(systemctl show -P SubState $service_name)' == running ]]; do sleep .2; done"
ec="$(systemctl show -P ExecMainStatus "$service_name")"
rm -fr "$root" "$service_path"
return "$ec"
}
testcase_check_selinux() {
# Basic test coverage to avoid issues like https://github.com/systemd/systemd/issues/19976
if ! command -v selinuxenabled >/dev/null || ! selinuxenabled; then
echo >&2 "SELinux is not enabled, skipping SELinux-related tests"
return 0
fi
local root
root="$(mktemp -d /var/lib/machines/testsuite-13.check-selinux.XXX)"
"$CREATE_BB_CONTAINER" "$root"
chcon -R -t container_t "$root"
systemd-nspawn --register=no \
--boot \
--directory="$root" \
--selinux-apifs-context=system_u:object_r:container_file_t:s0:c0,c1 \
--selinux-context=system_u:system_r:container_t:s0:c0,c1
rm -fr "$root"
}
testcase_check_ephemeral_config() {
# https://github.com/systemd/systemd/issues/13297
local root container_name
root="$(mktemp -d /var/lib/machines/testsuite-13.check-ephemeral-config.XXX)"
"$CREATE_BB_CONTAINER" "$root"
container_name="${root##*/}"
mkdir -p /run/systemd/nspawn/
cat >"/run/systemd/nspawn/$container_name.nspawn" <<EOF
[Files]
BindReadOnly=/tmp/ephemeral-config
EOF
touch /tmp/ephemeral-config
systemd-nspawn --register=no \
--directory="$root" \
--ephemeral \
/bin/sh -x -c "test -f /tmp/ephemeral-config"
systemd-nspawn --register=no \
--directory="$root" \
--ephemeral \
--machine=foobar \
/bin/sh -x -c "! test -f /tmp/ephemeral-config"
rm -fr "$root" "/run/systemd/nspawn/$container_name"
}
matrix_run_one() {
local cgroupsv2="${1:?}"
local use_cgns="${2:?}"
local api_vfs_writable="${3:?}"
local root
if [[ "$cgroupsv2" == "yes" && "$IS_CGROUPSV2_SUPPORTED" == "no" ]]; then
echo >&2 "Unified cgroup hierarchy is not supported, skipping..."
return 0
fi
if [[ "$use_cgns" == "yes" && "$IS_CGNS_SUPPORTED" == "no" ]]; then
echo >&2 "CGroup namespaces are not supported, skipping..."
return 0
fi
root="$(mktemp -d "/var/lib/machines/testsuite-13.unified-$1-cgns-$2-api-vfs-writable-$3.XXX")"
"$CREATE_BB_CONTAINER" "$root"
SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$cgroupsv2" SYSTEMD_NSPAWN_USE_CGNS="$use_cgns" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$api_vfs_writable" \
systemd-nspawn --register=no \
--directory="$root" \
--boot
SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$cgroupsv2" SYSTEMD_NSPAWN_USE_CGNS="$use_cgns" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$api_vfs_writable" \
systemd-nspawn --register=no \
--directory="$root" \
--private-network \
--boot
if SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$cgroupsv2" SYSTEMD_NSPAWN_USE_CGNS="$use_cgns" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$api_vfs_writable" \
systemd-nspawn --register=no \
--directory="$root" \
--private-users=pick \
--boot; then
[[ "$IS_USERNS_SUPPORTED" == "yes" && "$api_vfs_writable" == "network" ]] && return 1
else
[[ "$IS_USERNS_SUPPORTED" == "no" && "$api_vfs_writable" = "network" ]] && return 1
fi
if SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$cgroupsv2" SYSTEMD_NSPAWN_USE_CGNS="$use_cgns" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$api_vfs_writable" \
systemd-nspawn --register=no \
--directory="$root" \
--private-network \
--private-users=pick \
--boot; then
[[ "$IS_USERNS_SUPPORTED" == "yes" && "$api_vfs_writable" == "yes" ]] && return 1
else
[[ "$IS_USERNS_SUPPORTED" == "no" && "$api_vfs_writable" = "yes" ]] && return 1
fi
local netns_opt="--network-namespace-path=/proc/self/ns/net"
local net_opt
local net_opts=(
"--network-bridge=lo"
"--network-interface=lo"
"--network-ipvlan=lo"
"--network-macvlan=lo"
"--network-veth"
"--network-veth-extra=lo"
"--network-zone=zone"
)
# --network-namespace-path and network-related options cannot be used together
for net_opt in "${net_opts[@]}"; do
echo "$netns_opt in combination with $net_opt should fail"
if SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$cgroupsv2" SYSTEMD_NSPAWN_USE_CGNS="$use_cgns" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$api_vfs_writable" \
systemd-nspawn --register=no \
--directory="$root" \
--boot \
"$netns_opt" \
"$net_opt"; then
echo >&2 "unexpected pass"
return 1
fi
done
# allow combination of --network-namespace-path and --private-network
SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$cgroupsv2" SYSTEMD_NSPAWN_USE_CGNS="$use_cgns" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$api_vfs_writable" \
systemd-nspawn --register=no \
--directory="$root" \
--boot \
--private-network \
"$netns_opt"
# test --network-namespace-path works with a network namespace created by "ip netns"
ip netns add nspawn_test
netns_opt="--network-namespace-path=/run/netns/nspawn_test"
SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$cgroupsv2" SYSTEMD_NSPAWN_USE_CGNS="$use_cgns" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$api_vfs_writable" \
systemd-nspawn --register=no \
--directory="$root" \
--network-namespace-path=/run/netns/nspawn_test \
/bin/ip a | grep -v -E '^1: lo.*UP'
ip netns del nspawn_test
rm -fr "$root"
return 0
}
# Create a list of all functions prefixed with testcase_
mapfile -t TESTCASES < <(declare -F | awk '$3 ~ /^testcase_/ {print $3;}')
if [[ "${#TESTCASES[@]}" -eq 0 ]]; then
echo >&2 "No test cases found, this is most likely an error"
exit 1
fi
for testcase in "${TESTCASES[@]}"; do
"$testcase"
done
for api_vfs_writable in yes no network; do
matrix_run_one no no $api_vfs_writable
matrix_run_one yes no $api_vfs_writable
matrix_run_one no yes $api_vfs_writable
matrix_run_one yes yes $api_vfs_writable
done
run_subtests
touch /testok
rm /failed