mirror of
https://github.com/opencontainers/runc.git
synced 2026-07-11 14:13:58 +08:00
Kir Kolyshkin
64d5702f02
All the tests are run with cd to bundle directory, so it does not make ense to explicitly specify it. This relies on the feature of functions like set_cgroups_path or update_config to use current directory by default. In those cases where we need to change the directory (runc create/run -b), save the current one and use it later. Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
273 lines
8.2 KiB
Bash
273 lines
8.2 KiB
Bash
#!/usr/bin/env bats
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load helpers
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function teardown() {
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teardown_running_container test_cgroups_kmem
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teardown_running_container test_cgroups_permissions
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teardown_running_container test_cgroups_group
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teardown_running_container test_cgroups_unified
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teardown_busybox
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}
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function setup() {
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teardown
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setup_busybox
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}
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@test "runc update --kernel-memory{,-tcp} (initialized)" {
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[[ "$ROOTLESS" -ne 0 ]] && requires rootless_cgroup
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requires cgroups_kmem
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set_cgroups_path
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# Set some initial known values
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update_config '.linux.resources.memory |= {"kernel": 16777216, "kernelTCP": 11534336}'
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# run a detached busybox to work with
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runc run -d --console-socket "$CONSOLE_SOCKET" test_cgroups_kmem
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[ "$status" -eq 0 ]
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check_cgroup_value "memory.kmem.limit_in_bytes" 16777216
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check_cgroup_value "memory.kmem.tcp.limit_in_bytes" 11534336
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# update kernel memory limit
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runc update test_cgroups_kmem --kernel-memory 50331648
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[ "$status" -eq 0 ]
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check_cgroup_value "memory.kmem.limit_in_bytes" 50331648
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# update kernel memory tcp limit
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runc update test_cgroups_kmem --kernel-memory-tcp 41943040
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[ "$status" -eq 0 ]
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check_cgroup_value "memory.kmem.tcp.limit_in_bytes" 41943040
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}
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@test "runc update --kernel-memory (uninitialized)" {
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[[ "$ROOTLESS" -ne 0 ]] && requires rootless_cgroup
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requires cgroups_kmem
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set_cgroups_path
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# run a detached busybox to work with
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runc run -d --console-socket "$CONSOLE_SOCKET" test_cgroups_kmem
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[ "$status" -eq 0 ]
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# update kernel memory limit
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runc update test_cgroups_kmem --kernel-memory 50331648
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# Since kernel 4.6, we can update kernel memory without initialization
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# because it's accounted by default.
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if [[ "$KERNEL_MAJOR" -lt 4 || ("$KERNEL_MAJOR" -eq 4 && "$KERNEL_MINOR" -le 5) ]]; then
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[ ! "$status" -eq 0 ]
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else
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[ "$status" -eq 0 ]
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check_cgroup_value "memory.kmem.limit_in_bytes" 50331648
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fi
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}
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@test "runc create (no limits + no cgrouppath + no permission) succeeds" {
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runc run -d --console-socket "$CONSOLE_SOCKET" test_cgroups_permissions
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[ "$status" -eq 0 ]
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}
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@test "runc create (rootless + no limits + cgrouppath + no permission) fails with permission error" {
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requires rootless
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requires rootless_no_cgroup
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# systemd controls the permission, so error does not happen
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requires no_systemd
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set_cgroups_path
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runc run -d --console-socket "$CONSOLE_SOCKET" test_cgroups_permissions
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[ "$status" -eq 1 ]
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[[ ${lines[0]} == *"permission denied"* ]]
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}
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@test "runc create (rootless + limits + no cgrouppath + no permission) fails with informative error" {
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requires rootless
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requires rootless_no_cgroup
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# systemd controls the permission, so error does not happen
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requires no_systemd
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set_resources_limit
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runc run -d --console-socket "$CONSOLE_SOCKET" test_cgroups_permissions
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[ "$status" -eq 1 ]
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[[ ${lines[0]} == *"rootless needs no limits + no cgrouppath when no permission is granted for cgroups"* ]] || [[ ${lines[0]} == *"cannot set pids limit: container could not join or create cgroup"* ]]
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}
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@test "runc create (limits + cgrouppath + permission on the cgroup dir) succeeds" {
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[[ "$ROOTLESS" -ne 0 ]] && requires rootless_cgroup
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set_cgroups_path
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set_resources_limit
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runc run -d --console-socket "$CONSOLE_SOCKET" test_cgroups_permissions
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[ "$status" -eq 0 ]
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if [ "$CGROUP_UNIFIED" != "no" ]; then
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if [ -n "${RUNC_USE_SYSTEMD}" ]; then
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if [ "$(id -u)" = "0" ]; then
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check_cgroup_value "cgroup.controllers" "$(cat /sys/fs/cgroup/machine.slice/cgroup.controllers)"
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else
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# shellcheck disable=SC2046
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check_cgroup_value "cgroup.controllers" "$(cat /sys/fs/cgroup/user.slice/user-$(id -u).slice/cgroup.controllers)"
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fi
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else
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check_cgroup_value "cgroup.controllers" "$(cat /sys/fs/cgroup/cgroup.controllers)"
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fi
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fi
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}
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@test "runc exec (limits + cgrouppath + permission on the cgroup dir) succeeds" {
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[[ "$ROOTLESS" -ne 0 ]] && requires rootless_cgroup
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set_cgroups_path
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set_resources_limit
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runc run -d --console-socket "$CONSOLE_SOCKET" test_cgroups_permissions
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[ "$status" -eq 0 ]
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runc exec test_cgroups_permissions echo "cgroups_exec"
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[ "$status" -eq 0 ]
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[[ ${lines[0]} == *"cgroups_exec"* ]]
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}
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@test "runc exec (cgroup v2 + init process in non-root cgroup) succeeds" {
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requires root cgroups_v2
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set_cgroups_path
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set_cgroup_mount_writable
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runc run -d --console-socket "$CONSOLE_SOCKET" test_cgroups_group
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[ "$status" -eq 0 ]
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runc exec test_cgroups_group cat /sys/fs/cgroup/cgroup.controllers
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[ "$status" -eq 0 ]
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[[ ${lines[0]} == *"memory"* ]]
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runc exec test_cgroups_group cat /proc/self/cgroup
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[ "$status" -eq 0 ]
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[[ ${lines[0]} == "0::/" ]]
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runc exec test_cgroups_group mkdir /sys/fs/cgroup/foo
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[ "$status" -eq 0 ]
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runc exec test_cgroups_group sh -c "echo 1 > /sys/fs/cgroup/foo/cgroup.procs"
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[ "$status" -eq 0 ]
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# the init process is now in "/foo", but an exec process can still join "/"
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# because we haven't enabled any domain controller.
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runc exec test_cgroups_group cat /proc/self/cgroup
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[ "$status" -eq 0 ]
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[[ ${lines[0]} == "0::/" ]]
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# turn on a domain controller (memory)
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runc exec test_cgroups_group sh -euxc 'echo $$ > /sys/fs/cgroup/foo/cgroup.procs; echo +memory > /sys/fs/cgroup/cgroup.subtree_control'
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[ "$status" -eq 0 ]
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# an exec process can no longer join "/" after turning on a domain controller.
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# falls back to "/foo".
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runc exec test_cgroups_group cat /proc/self/cgroup
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[ "$status" -eq 0 ]
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[[ ${lines[0]} == "0::/foo" ]]
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# teardown: remove "/foo"
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# shellcheck disable=SC2016
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runc exec test_cgroups_group sh -uxc 'echo -memory > /sys/fs/cgroup/cgroup.subtree_control; for f in $(cat /sys/fs/cgroup/foo/cgroup.procs); do echo $f > /sys/fs/cgroup/cgroup.procs; done; rmdir /sys/fs/cgroup/foo'
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runc exec test_cgroups_group test ! -d /sys/fs/cgroup/foo
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[ "$status" -eq 0 ]
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#
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}
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@test "runc run (cgroup v1 + unified resources should fail)" {
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requires root cgroups_v1
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set_cgroups_path
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set_resources_limit
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update_config '.linux.resources.unified |= {"memory.min": "131072"}'
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runc run -d --console-socket "$CONSOLE_SOCKET" test_cgroups_unified
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[ "$status" -ne 0 ]
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[[ "$output" == *'invalid configuration'* ]]
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}
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@test "runc run (cgroup v2 resources.unified only)" {
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requires root cgroups_v2
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set_cgroups_path
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update_config ' .linux.resources.unified |= {
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"memory.min": "131072",
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"memory.low": "524288",
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"memory.high": "5242880",
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"memory.max": "10485760",
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"memory.swap.max": "20971520",
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"pids.max": "99",
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"cpu.max": "10000 100000",
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"cpu.weight": "42"
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}'
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runc run -d --console-socket "$CONSOLE_SOCKET" test_cgroups_unified
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[ "$status" -eq 0 ]
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runc exec test_cgroups_unified sh -c 'cd /sys/fs/cgroup && grep . *.min *.max *.low *.high'
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[ "$status" -eq 0 ]
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echo "$output"
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echo "$output" | grep -q '^memory.min:131072$'
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echo "$output" | grep -q '^memory.low:524288$'
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echo "$output" | grep -q '^memory.high:5242880$'
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echo "$output" | grep -q '^memory.max:10485760$'
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echo "$output" | grep -q '^memory.swap.max:20971520$'
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echo "$output" | grep -q '^pids.max:99$'
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echo "$output" | grep -q '^cpu.max:10000 100000$'
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check_systemd_value "MemoryMin" 131072
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check_systemd_value "MemoryLow" 524288
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check_systemd_value "MemoryHigh" 5242880
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check_systemd_value "MemoryMax" 10485760
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check_systemd_value "MemorySwapMax" 20971520
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check_systemd_value "TasksMax" 99
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check_cpu_quota 10000 100000 "100ms"
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check_cpu_weight 42
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}
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@test "runc run (cgroup v2 resources.unified override)" {
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requires root cgroups_v2
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set_cgroups_path
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# CPU shares of 3333 corresponds to CPU weight of 128.
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update_config ' .linux.resources.memory |= {"limit": 33554432}
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| .linux.resources.memorySwap |= {"limit": 33554432}
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| .linux.resources.cpu |= {
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"shares": 3333,
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"quota": 40000,
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"period": 100000
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}
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| .linux.resources.unified |= {
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"memory.min": "131072",
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"memory.max": "10485760",
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"pids.max": "42",
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"cpu.max": "5000 50000",
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"cpu.weight": "42"
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}'
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runc run -d --console-socket "$CONSOLE_SOCKET" test_cgroups_unified
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[ "$status" -eq 0 ]
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runc exec test_cgroups_unified cat /sys/fs/cgroup/memory.min
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[ "$status" -eq 0 ]
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[ "$output" = '131072' ]
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runc exec test_cgroups_unified cat /sys/fs/cgroup/memory.max
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[ "$status" -eq 0 ]
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[ "$output" = '10485760' ]
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runc exec test_cgroups_unified cat /sys/fs/cgroup/pids.max
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[ "$status" -eq 0 ]
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[ "$output" = '42' ]
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check_systemd_value "TasksMax" 42
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check_cpu_quota 5000 50000 "100ms"
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check_cpu_weight 42
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}
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