453 lines
10 KiB
Go
453 lines
10 KiB
Go
// +build linux
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package specconv
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import (
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"os"
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"strings"
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"testing"
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"golang.org/x/sys/unix"
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"github.com/opencontainers/runc/libcontainer/configs"
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"github.com/opencontainers/runc/libcontainer/configs/validate"
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"github.com/opencontainers/runtime-spec/specs-go"
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)
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func TestCreateCommandHookTimeout(t *testing.T) {
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timeout := 3600
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hook := specs.Hook{
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Path: "/some/hook/path",
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Args: []string{"--some", "thing"},
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Env: []string{"SOME=value"},
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Timeout: &timeout,
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}
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command := createCommandHook(hook)
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timeoutStr := command.Timeout.String()
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if timeoutStr != "1h0m0s" {
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t.Errorf("Expected the Timeout to be 1h0m0s, got: %s", timeoutStr)
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}
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}
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func TestCreateHooks(t *testing.T) {
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rspec := &specs.Spec{
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Hooks: &specs.Hooks{
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Prestart: []specs.Hook{
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{
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Path: "/some/hook/path",
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},
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{
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Path: "/some/hook2/path",
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Args: []string{"--some", "thing"},
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},
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},
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Poststart: []specs.Hook{
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{
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Path: "/some/hook/path",
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Args: []string{"--some", "thing"},
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Env: []string{"SOME=value"},
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},
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{
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Path: "/some/hook2/path",
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},
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{
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Path: "/some/hook3/path",
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},
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},
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Poststop: []specs.Hook{
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{
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Path: "/some/hook/path",
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Args: []string{"--some", "thing"},
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Env: []string{"SOME=value"},
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},
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{
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Path: "/some/hook2/path",
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},
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{
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Path: "/some/hook3/path",
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},
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{
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Path: "/some/hook4/path",
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Args: []string{"--some", "thing"},
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},
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},
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},
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}
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conf := &configs.Config{}
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createHooks(rspec, conf)
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prestart := conf.Hooks.Prestart
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if len(prestart) != 2 {
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t.Error("Expected 2 Prestart hooks")
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}
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poststart := conf.Hooks.Poststart
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if len(poststart) != 3 {
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t.Error("Expected 3 Poststart hooks")
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}
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poststop := conf.Hooks.Poststop
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if len(poststop) != 4 {
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t.Error("Expected 4 Poststop hooks")
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}
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}
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func TestSetupSeccomp(t *testing.T) {
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conf := &specs.LinuxSeccomp{
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DefaultAction: "SCMP_ACT_ERRNO",
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Architectures: []specs.Arch{specs.ArchX86_64, specs.ArchARM},
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Syscalls: []specs.LinuxSyscall{
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{
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Names: []string{"clone"},
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Action: "SCMP_ACT_ALLOW",
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Args: []specs.LinuxSeccompArg{
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{
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Index: 0,
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Value: unix.CLONE_NEWNS | unix.CLONE_NEWUTS | unix.CLONE_NEWIPC | unix.CLONE_NEWUSER | unix.CLONE_NEWPID | unix.CLONE_NEWNET | unix.CLONE_NEWCGROUP,
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ValueTwo: 0,
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Op: "SCMP_CMP_MASKED_EQ",
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},
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},
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},
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{
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Names: []string{
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"select",
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"semctl",
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"semget",
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"semop",
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"semtimedop",
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"send",
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"sendfile",
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},
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Action: "SCMP_ACT_ALLOW",
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},
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},
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}
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seccomp, err := SetupSeccomp(conf)
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if err != nil {
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t.Errorf("Couldn't create Seccomp config: %v", err)
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}
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if seccomp.DefaultAction != 2 { // SCMP_ACT_ERRNO
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t.Error("Wrong conversion for DefaultAction")
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}
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if len(seccomp.Architectures) != 2 {
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t.Error("Wrong number of architectures")
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}
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if seccomp.Architectures[0] != "amd64" || seccomp.Architectures[1] != "arm" {
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t.Error("Expected architectures are not found")
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}
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calls := seccomp.Syscalls
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callsLength := len(calls)
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if callsLength != 8 {
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t.Errorf("Expected 8 syscalls, got :%d", callsLength)
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}
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for i, call := range calls {
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if i == 0 {
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expectedCloneSyscallArgs := configs.Arg{
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Index: 0,
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Op: 7, // SCMP_CMP_MASKED_EQ
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Value: unix.CLONE_NEWNS | unix.CLONE_NEWUTS | unix.CLONE_NEWIPC | unix.CLONE_NEWUSER | unix.CLONE_NEWPID | unix.CLONE_NEWNET | unix.CLONE_NEWCGROUP,
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ValueTwo: 0,
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}
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if expectedCloneSyscallArgs != *call.Args[0] {
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t.Errorf("Wrong arguments conversion for the clone syscall under test")
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}
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}
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if call.Action != 4 {
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t.Error("Wrong conversion for the clone syscall action")
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}
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}
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}
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func TestLinuxCgroupWithMemoryResource(t *testing.T) {
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cgroupsPath := "/user/cgroups/path/id"
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spec := &specs.Spec{}
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devices := []specs.LinuxDeviceCgroup{
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{
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Allow: false,
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Access: "rwm",
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},
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}
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limit := int64(100)
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reservation := int64(50)
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swap := int64(20)
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kernel := int64(40)
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kernelTCP := int64(45)
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swappiness := uint64(1)
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swappinessPtr := &swappiness
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disableOOMKiller := true
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resources := &specs.LinuxResources{
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Devices: devices,
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Memory: &specs.LinuxMemory{
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Limit: &limit,
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Reservation: &reservation,
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Swap: &swap,
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Kernel: &kernel,
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KernelTCP: &kernelTCP,
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Swappiness: swappinessPtr,
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DisableOOMKiller: &disableOOMKiller,
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},
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}
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spec.Linux = &specs.Linux{
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CgroupsPath: cgroupsPath,
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Resources: resources,
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}
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opts := &CreateOpts{
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CgroupName: "ContainerID",
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UseSystemdCgroup: false,
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Spec: spec,
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}
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cgroup, err := createCgroupConfig(opts)
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if err != nil {
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t.Errorf("Couldn't create Cgroup config: %v", err)
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}
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if cgroup.Path != cgroupsPath {
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t.Errorf("Wrong cgroupsPath, expected '%s' got '%s'", cgroupsPath, cgroup.Path)
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}
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if cgroup.Resources.Memory != limit {
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t.Errorf("Expected to have %d as memory limit, got %d", limit, cgroup.Resources.Memory)
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}
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if cgroup.Resources.MemoryReservation != reservation {
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t.Errorf("Expected to have %d as memory reservation, got %d", reservation, cgroup.Resources.MemoryReservation)
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}
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if cgroup.Resources.MemorySwap != swap {
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t.Errorf("Expected to have %d as swap, got %d", swap, cgroup.Resources.MemorySwap)
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}
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if cgroup.Resources.KernelMemory != kernel {
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t.Errorf("Expected to have %d as Kernel Memory, got %d", kernel, cgroup.Resources.KernelMemory)
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}
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if cgroup.Resources.KernelMemoryTCP != kernelTCP {
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t.Errorf("Expected to have %d as TCP Kernel Memory, got %d", kernelTCP, cgroup.Resources.KernelMemoryTCP)
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}
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if cgroup.Resources.MemorySwappiness != swappinessPtr {
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t.Errorf("Expected to have %d as memory swappiness, got %d", swappinessPtr, cgroup.Resources.MemorySwappiness)
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}
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if cgroup.Resources.OomKillDisable != disableOOMKiller {
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t.Errorf("The OOMKiller should be enabled")
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}
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}
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func TestLinuxCgroupSystemd(t *testing.T) {
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cgroupsPath := "parent:scopeprefix:name"
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spec := &specs.Spec{}
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spec.Linux = &specs.Linux{
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CgroupsPath: cgroupsPath,
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}
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opts := &CreateOpts{
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UseSystemdCgroup: true,
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Spec: spec,
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}
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cgroup, err := createCgroupConfig(opts)
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if err != nil {
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t.Errorf("Couldn't create Cgroup config: %v", err)
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}
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expectedParent := "parent"
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if cgroup.Parent != expectedParent {
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t.Errorf("Expected to have %s as Parent instead of %s", expectedParent, cgroup.Parent)
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}
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expectedScopePrefix := "scopeprefix"
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if cgroup.ScopePrefix != expectedScopePrefix {
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t.Errorf("Expected to have %s as ScopePrefix instead of %s", expectedScopePrefix, cgroup.ScopePrefix)
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}
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expectedName := "name"
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if cgroup.Name != expectedName {
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t.Errorf("Expected to have %s as Name instead of %s", expectedName, cgroup.Name)
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}
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}
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func TestLinuxCgroupSystemdWithEmptyPath(t *testing.T) {
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cgroupsPath := ""
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spec := &specs.Spec{}
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spec.Linux = &specs.Linux{
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CgroupsPath: cgroupsPath,
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}
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opts := &CreateOpts{
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CgroupName: "ContainerID",
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UseSystemdCgroup: true,
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Spec: spec,
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}
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cgroup, err := createCgroupConfig(opts)
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if err != nil {
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t.Errorf("Couldn't create Cgroup config: %v", err)
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}
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expectedParent := "system.slice"
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if cgroup.Parent != expectedParent {
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t.Errorf("Expected to have %s as Parent instead of %s", expectedParent, cgroup.Parent)
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}
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expectedScopePrefix := "runc"
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if cgroup.ScopePrefix != expectedScopePrefix {
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t.Errorf("Expected to have %s as ScopePrefix instead of %s", expectedScopePrefix, cgroup.ScopePrefix)
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}
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if cgroup.Name != opts.CgroupName {
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t.Errorf("Expected to have %s as Name instead of %s", opts.CgroupName, cgroup.Name)
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}
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}
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func TestLinuxCgroupSystemdWithInvalidPath(t *testing.T) {
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cgroupsPath := "/user/cgroups/path/id"
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spec := &specs.Spec{}
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spec.Linux = &specs.Linux{
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CgroupsPath: cgroupsPath,
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}
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opts := &CreateOpts{
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CgroupName: "ContainerID",
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UseSystemdCgroup: true,
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Spec: spec,
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}
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_, err := createCgroupConfig(opts)
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if err == nil {
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t.Error("Expected to produce an error if not using the correct format for cgroup paths belonging to systemd")
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}
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}
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func TestLinuxCgroupsPathSpecified(t *testing.T) {
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cgroupsPath := "/user/cgroups/path/id"
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spec := &specs.Spec{}
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spec.Linux = &specs.Linux{
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CgroupsPath: cgroupsPath,
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}
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opts := &CreateOpts{
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CgroupName: "ContainerID",
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UseSystemdCgroup: false,
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Spec: spec,
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}
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cgroup, err := createCgroupConfig(opts)
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if err != nil {
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t.Errorf("Couldn't create Cgroup config: %v", err)
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}
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if cgroup.Path != cgroupsPath {
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t.Errorf("Wrong cgroupsPath, expected '%s' got '%s'", cgroupsPath, cgroup.Path)
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}
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}
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func TestLinuxCgroupsPathNotSpecified(t *testing.T) {
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spec := &specs.Spec{}
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opts := &CreateOpts{
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CgroupName: "ContainerID",
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UseSystemdCgroup: false,
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Spec: spec,
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}
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cgroup, err := createCgroupConfig(opts)
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if err != nil {
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t.Errorf("Couldn't create Cgroup config: %v", err)
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}
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if cgroup.Path != "" {
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t.Errorf("Wrong cgroupsPath, expected it to be empty string, got '%s'", cgroup.Path)
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}
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}
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func TestSpecconvExampleValidate(t *testing.T) {
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spec := Example()
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spec.Root.Path = "/"
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opts := &CreateOpts{
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CgroupName: "ContainerID",
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UseSystemdCgroup: false,
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Spec: spec,
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}
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config, err := CreateLibcontainerConfig(opts)
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if err != nil {
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t.Errorf("Couldn't create libcontainer config: %v", err)
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}
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validator := validate.New()
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if err := validator.Validate(config); err != nil {
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t.Errorf("Expected specconv to produce valid container config: %v", err)
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}
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}
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func TestDupNamespaces(t *testing.T) {
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spec := &specs.Spec{
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Root: &specs.Root{
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Path: "rootfs",
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},
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Linux: &specs.Linux{
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Namespaces: []specs.LinuxNamespace{
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{
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Type: "pid",
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},
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{
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Type: "pid",
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Path: "/proc/1/ns/pid",
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},
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},
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},
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}
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_, err := CreateLibcontainerConfig(&CreateOpts{
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Spec: spec,
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})
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if !strings.Contains(err.Error(), "malformed spec file: duplicated ns") {
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t.Errorf("Duplicated namespaces should be forbidden")
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}
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}
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func TestNonZeroEUIDCompatibleSpecconvValidate(t *testing.T) {
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if _, err := os.Stat("/proc/self/ns/user"); os.IsNotExist(err) {
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t.Skip("userns is unsupported")
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}
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spec := Example()
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spec.Root.Path = "/"
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ToRootless(spec)
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opts := &CreateOpts{
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CgroupName: "ContainerID",
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UseSystemdCgroup: false,
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Spec: spec,
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RootlessEUID: true,
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RootlessCgroups: true,
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}
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config, err := CreateLibcontainerConfig(opts)
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if err != nil {
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t.Errorf("Couldn't create libcontainer config: %v", err)
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}
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validator := validate.New()
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if err := validator.Validate(config); err != nil {
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t.Errorf("Expected specconv to produce valid rootless container config: %v", err)
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}
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}
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