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grpc_test.go
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grpc_test.go
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//
// Copyright (c) 2017 Intel Corporation
//
// SPDX-License-Identifier: Apache-2.0
//
package main
import (
"context"
"errors"
"fmt"
"io/ioutil"
"os"
"path/filepath"
"reflect"
"sort"
"strconv"
"strings"
"syscall"
"testing"
"time"
"sync"
pb "github.com/kata-containers/agent/protocols/grpc"
"github.com/opencontainers/runc/libcontainer"
"github.com/opencontainers/runc/libcontainer/cgroups"
"github.com/opencontainers/runc/libcontainer/configs"
"github.com/opencontainers/runc/libcontainer/seccomp"
runctypes "github.com/opencontainers/runc/types"
"github.com/opencontainers/runtime-spec/specs-go"
"github.com/stretchr/testify/assert"
"golang.org/x/sys/unix"
)
var testSharedPidNs = "testSharedPidNs"
var testSharedUTSNs = "testSharedUTSNs"
var testSharedIPCNs = "testSharedIPCNs"
func testUpdateContainerConfigNamespacesSharedPid(t *testing.T, sharedPidNs, sharedUTSNs, sharedIPCNs string, config, expected configs.Config) {
testUpdateContainerConfigNamespaces(t, sharedPidNs, sharedUTSNs, sharedIPCNs, config, expected, true, false)
}
func testUpdateContainerConfigNamespacesNonSharedPid(t *testing.T, sharedPidNs, sharedUTSNs, sharedIPCNs string, config, expected configs.Config) {
testUpdateContainerConfigNamespaces(t, sharedPidNs, sharedUTSNs, sharedIPCNs, config, expected, false, false)
}
func testUpdateContainerConfigNamespacesAgentPid(t *testing.T, sharedPidNs, sharedUTSNs, sharedIPCNs string, config, expected configs.Config) {
testUpdateContainerConfigNamespaces(t, sharedPidNs, sharedUTSNs, sharedIPCNs, config, expected, false, true)
}
func testUpdateContainerConfigNamespaces(t *testing.T, sharedPidNs, sharedUTSNs, sharedIPCNs string, config, expected configs.Config, sharedPid, agentPid bool) {
s := &sandbox{
sharedPidNs: namespace{
path: sharedPidNs,
},
sharedIPCNs: namespace{
path: sharedIPCNs,
},
sharedUTSNs: namespace{
path: sharedUTSNs,
},
containers: make(map[string]*container),
}
contID := "testContainer"
ctr := &container{
id: contID,
useSandboxPidNs: sharedPid,
agentPidNs: agentPid,
}
s.containers[contID] = ctr
a := &agentGRPC{
sandbox: s,
}
a.updateContainerConfigNamespaces(&config, ctr)
assert.True(t, reflect.DeepEqual(config, expected),
"Config structures should be identical: got %+v, expecting %+v",
config, expected)
}
func TestUpdateContainerConfigNamespacesNonEmptyConfig(t *testing.T) {
config := configs.Config{
Namespaces: []configs.Namespace{
{
Type: configs.NEWIPC,
},
{
Type: configs.NEWUTS,
},
},
}
expectedConfig := configs.Config{
Namespaces: []configs.Namespace{
{
Type: configs.NEWIPC,
Path: testSharedIPCNs,
},
{
Type: configs.NEWUTS,
Path: testSharedUTSNs,
},
{
Type: configs.NEWPID,
Path: testSharedPidNs,
},
},
}
testUpdateContainerConfigNamespacesSharedPid(t, testSharedPidNs, testSharedUTSNs, testSharedIPCNs, config, expectedConfig)
expectedConfig = configs.Config{
Namespaces: []configs.Namespace{
{
Type: configs.NEWIPC,
Path: testSharedIPCNs,
},
{
Type: configs.NEWUTS,
Path: testSharedUTSNs,
},
{
Type: configs.NEWPID,
Path: "",
},
},
}
testUpdateContainerConfigNamespacesNonSharedPid(t, testSharedPidNs, testSharedUTSNs, testSharedIPCNs, config, expectedConfig)
}
func TestUpdateContainerConfigNamespacesEmptyConfig(t *testing.T) {
expectedConfig := configs.Config{
Namespaces: []configs.Namespace{
{
Type: configs.NEWIPC,
Path: testSharedIPCNs,
},
{
Type: configs.NEWUTS,
Path: testSharedUTSNs,
},
{
Type: configs.NEWPID,
Path: testSharedPidNs,
},
},
}
testUpdateContainerConfigNamespacesSharedPid(t, testSharedPidNs, testSharedUTSNs, testSharedIPCNs, configs.Config{}, expectedConfig)
expectedConfig = configs.Config{
Namespaces: []configs.Namespace{
{
Type: configs.NEWIPC,
Path: testSharedIPCNs,
},
{
Type: configs.NEWUTS,
Path: testSharedUTSNs,
},
{
Type: configs.NEWPID,
Path: "",
},
},
}
testUpdateContainerConfigNamespacesNonSharedPid(t, testSharedPidNs, testSharedUTSNs, testSharedIPCNs, configs.Config{}, expectedConfig)
}
func TestUpdateContainerConfigNamespacesAgentPidConfig(t *testing.T) {
config := configs.Config{
Namespaces: []configs.Namespace{
{
Type: configs.NEWIPC,
},
{
Type: configs.NEWUTS,
},
},
}
expectedConfig := configs.Config{
Namespaces: []configs.Namespace{
{
Type: configs.NEWIPC,
Path: testSharedIPCNs,
},
{
Type: configs.NEWUTS,
Path: testSharedUTSNs,
},
},
}
testUpdateContainerConfigNamespacesAgentPid(t, testSharedPidNs, testSharedUTSNs, testSharedIPCNs, config, expectedConfig)
}
func testUpdateContainerConfigPrivileges(t *testing.T, spec *specs.Spec, config, expected configs.Config) {
a := &agentGRPC{}
err := a.updateContainerConfigPrivileges(spec, &config)
assert.Nil(t, err, "updateContainerConfigPrivileges() failed: %v", err)
assert.True(t, reflect.DeepEqual(config, expected),
"Config structures should be identical: got %+v, expecting %+v",
config, expected)
}
func TestUpdateContainerConfigPrivilegesNilSpec(t *testing.T) {
testUpdateContainerConfigPrivileges(t, nil, configs.Config{}, configs.Config{})
}
func TestUpdateContainerConfigPrivilegesNilSpecProcess(t *testing.T) {
testUpdateContainerConfigPrivileges(t, &specs.Spec{}, configs.Config{}, configs.Config{})
}
func TestUpdateContainerConfigPrivilegesNoNewPrivileges(t *testing.T) {
for _, priv := range []bool{false, true} {
spec := &specs.Spec{
Process: &specs.Process{
NoNewPrivileges: priv,
},
}
config := configs.Config{}
expectedConfig := configs.Config{
NoNewPrivileges: priv,
}
testUpdateContainerConfigPrivileges(t, spec, config, expectedConfig)
}
}
func TestOnlineCPUMem(t *testing.T) {
assert := assert.New(t)
a := &agentGRPC{
sandbox: &sandbox{
containers: make(map[string]*container),
},
}
containerID := "1"
containerID2 := "2"
container := &container{
container: &mockContainer{
id: containerID,
processes: []int{1},
},
}
a.sandbox.containers[containerID] = container
a.sandbox.containers[containerID2] = container
req := &pb.OnlineCPUMemRequest{
NbCpus: 1,
Wait: true,
}
sysfsCPUOnlinePath = "/xyz/123/rgb/abc"
sysfsMemOnlinePath = "/xyz/123/rgb/abc"
oldOnlineCPUMaxTries := onlineCPUMaxTries
onlineCPUMaxTries = 10
defer func() {
onlineCPUMaxTries = oldOnlineCPUMaxTries
}()
_, err := a.OnlineCPUMem(context.TODO(), req)
assert.Error(err, "sysfs paths do not exist")
sysfsCPUOnlinePath, err = ioutil.TempDir("", "cpu")
assert.NoError(err)
defer os.RemoveAll(sysfsCPUOnlinePath)
sysfsConnectedCPUsPath = filepath.Join(sysfsCPUOnlinePath, "online")
sysfsMemOnlinePath, err = ioutil.TempDir("", "memory")
assert.NoError(err)
defer os.RemoveAll(sysfsMemOnlinePath)
_, err = a.OnlineCPUMem(context.TODO(), req)
assert.Error(err, "CPU sysfs is empty")
cpu0dir := filepath.Join(sysfsCPUOnlinePath, "cpu0")
err = os.Mkdir(cpu0dir, 0775)
assert.NoError(err)
_, err = a.OnlineCPUMem(context.TODO(), req)
assert.Error(err)
cpu0Online := filepath.Join(cpu0dir, "online")
err = ioutil.WriteFile(cpu0Online, []byte("0"), 0755)
assert.NoError(err)
memory0dir := filepath.Join(sysfsMemOnlinePath, "memory0")
err = os.Mkdir(memory0dir, 0775)
assert.NoError(err)
memory0Online := filepath.Join(memory0dir, "online")
err = ioutil.WriteFile(memory0Online, []byte("0"), 0755)
assert.NoError(err)
_, err = a.OnlineCPUMem(context.TODO(), req)
assert.Error(err, "connected cpus path does not exist")
sysfsConnectedCPUsPath = filepath.Join(sysfsCPUOnlinePath, "online")
ioutil.WriteFile(sysfsConnectedCPUsPath, []byte("0-4"), 0644)
_, err = a.OnlineCPUMem(context.TODO(), req)
assert.Error(err, "docker cgroup path does not exist")
cgroupCpusetPath, err = ioutil.TempDir("", "cgroup")
assert.NoError(err)
cfg := container.container.Config()
cgroupPath := filepath.Join(cgroupCpusetPath, cfg.Cgroups.Path)
err = os.MkdirAll(cgroupPath, 0777)
assert.NoError(err)
defer os.RemoveAll(cgroupCpusetPath)
err = ioutil.WriteFile(memory0Online, []byte("0"), 0755)
assert.NoError(err)
err = ioutil.WriteFile(cpu0Online, []byte("0"), 0755)
assert.NoError(err)
_, err = a.OnlineCPUMem(context.TODO(), req)
assert.NoError(err)
req.NbCpus = 0
req.CpuOnly = true
_, err = a.OnlineCPUMem(context.TODO(), req)
assert.Error(err)
}
func TestGetPIDIndex(t *testing.T) {
assert := assert.New(t)
title := "UID PID PPID C STIME TTY TIME CMD"
pidIndex := 1
index := getPIDIndex(title)
assert.Equal(pidIndex, index)
title = "PID PPID C STIME TTY TIME CMD"
pidIndex = 0
index = getPIDIndex(title)
assert.Equal(pidIndex, index)
title = "PPID C STIME TTY TIME CMD PID"
pidIndex = 6
index = getPIDIndex(title)
assert.Equal(pidIndex, index)
title = "PPID C STIME TTY TIME CMD"
pidIndex = -1
index = getPIDIndex(title)
assert.Equal(pidIndex, index)
}
func TestListProcesses(t *testing.T) {
containerID := "1"
assert := assert.New(t)
req := &pb.ListProcessesRequest{
ContainerId: containerID,
Format: "table",
Args: []string{"-ef"},
}
a := &agentGRPC{
sandbox: &sandbox{
containers: make(map[string]*container),
subreaper: &mockreaper{},
},
}
// getContainer should fail
r, err := a.ListProcesses(context.TODO(), req)
assert.Error(err)
assert.NotNil(r)
// should fail, unknown format
req.Format = "unknown"
a.sandbox.containers[containerID] = &container{
container: &mockContainer{
id: containerID,
processes: []int{1},
},
}
r, err = a.ListProcesses(context.TODO(), req)
assert.Error(err)
assert.NotNil(r)
// json format
req.Format = "json"
r, err = a.ListProcesses(context.TODO(), req)
assert.NoError(err)
assert.NotNil(r)
assert.NotEmpty(r.ProcessList)
// table format
req.Format = "table"
r, err = a.ListProcesses(context.TODO(), req)
assert.NoError(err)
assert.NotNil(r)
assert.NotEmpty(r.ProcessList)
}
func TestIsNetworkSysctl(t *testing.T) {
assert := assert.New(t)
sysctl := "net.core.somaxconn"
isNet := isNetworkSysctl(sysctl)
assert.True(isNet)
sysctl = "kernel.shmmax"
isNet = isNetworkSysctl(sysctl)
assert.False(isNet)
}
func TestWriteSystemProperty(t *testing.T) {
assert := assert.New(t)
tmpDir, err := ioutil.TempDir("", "procsys")
assert.Nil(err)
defer os.RemoveAll(tmpDir)
key := "net.core.somaxconn"
value := "1024"
procSysDir = filepath.Join(tmpDir, "proc", "sys")
err = os.MkdirAll(procSysDir, 0755)
assert.Nil(err)
netCoreDir := filepath.Join(procSysDir, "net", "core")
err = os.MkdirAll(netCoreDir, 0755)
assert.Nil(err)
sysFile := filepath.Join(netCoreDir, "somaxconn")
fd, err := os.Create(sysFile)
assert.Nil(err)
fd.Close()
err = writeSystemProperty(key, value)
assert.Nil(err)
// Read file and verify
content, err := ioutil.ReadFile(sysFile)
assert.Nil(err)
assert.Equal(value, string(content))
// Following checks require root privileges to remove a read-only dir
if os.Geteuid() != 0 {
return
}
// Remove write permissions for procSysDir to what they normally are
// for /proc/sys so that files cannot be created
err = os.Chmod(procSysDir, 0555)
assert.Nil(err)
// Nonexistent sys file
key = "net.ipv4.ip_forward"
value = "1"
err = writeSystemProperty(key, value)
assert.NotNil(err)
}
func TestApplyNetworkSysctls(t *testing.T) {
assert := assert.New(t)
a := &agentGRPC{}
spec := &specs.Spec{}
spec.Linux = &specs.Linux{}
spec.Linux.Sysctl = make(map[string]string)
spec.Linux.Sysctl["kernel.shmmax"] = "512"
err := a.applyNetworkSysctls(spec)
assert.Nil(err)
assert.Equal(len(spec.Linux.Sysctl), 1)
assert.Equal(spec.Linux.Sysctl["kernel.shmmax"], "512")
// Check with network sysctl
spec.Linux.Sysctl["net.core.somaxconn"] = "1024"
tmpDir, err := ioutil.TempDir("", "procsys")
assert.Nil(err)
defer os.RemoveAll(tmpDir)
procSysDir = filepath.Join(tmpDir, "proc", "sys")
netCoreDir := filepath.Join(procSysDir, "net", "core")
err = os.MkdirAll(netCoreDir, 0755)
assert.Nil(err)
assert.Equal(len(spec.Linux.Sysctl), 2)
err = a.applyNetworkSysctls(spec)
assert.Nil(err)
assert.Equal(len(spec.Linux.Sysctl), 1)
assert.Equal(spec.Linux.Sysctl["kernel.shmmax"], "512")
}
func TestUpdateContainer(t *testing.T) {
containerID := "1"
assert := assert.New(t)
req := &pb.UpdateContainerRequest{
ContainerId: containerID,
}
a := &agentGRPC{
sandbox: &sandbox{
containers: make(map[string]*container),
},
}
// Resources are nil, should fail
r, err := a.UpdateContainer(context.TODO(), req)
assert.Error(err)
assert.Equal(emptyResp, r)
// getContainer should fail
req.Resources = &pb.LinuxResources{
BlockIO: &pb.LinuxBlockIO{},
Memory: &pb.LinuxMemory{},
CPU: &pb.LinuxCPU{},
Pids: &pb.LinuxPids{},
Network: &pb.LinuxNetwork{},
}
r, err = a.UpdateContainer(context.TODO(), req)
assert.Error(err)
assert.Equal(emptyResp, r)
a.sandbox.containers[containerID] = &container{
container: &mockContainer{
id: containerID,
processes: []int{1},
},
}
r, err = a.UpdateContainer(context.TODO(), req)
assert.NoError(err)
assert.Equal(emptyResp, r)
}
func TestStatsContainer(t *testing.T) {
containerID := "1"
assert := assert.New(t)
req := &pb.StatsContainerRequest{
ContainerId: containerID,
}
a := &agentGRPC{
sandbox: &sandbox{
containers: make(map[string]*container),
},
}
//getcontainer should failed
r, err := a.StatsContainer(context.TODO(), req)
assert.Error(err)
assert.Nil(r)
network := &runctypes.NetworkInterface{}
interfaces := make([]*runctypes.NetworkInterface, 0)
interfaces = append(interfaces, network)
a.sandbox.containers[containerID] = &container{
container: &mockContainer{
id: containerID,
stats: libcontainer.Stats{
CgroupStats: &cgroups.Stats{},
Interfaces: interfaces,
},
},
}
r, err = a.StatsContainer(context.TODO(), req)
assert.NoError(err)
assert.NotNil(r)
assert.NotNil(r.CgroupStats)
assert.NotNil(r.NetworkStats)
}
func TestPauseContainer(t *testing.T) {
containerID := "1"
assert := assert.New(t)
req := &pb.PauseContainerRequest{
ContainerId: containerID,
}
a := &agentGRPC{
sandbox: &sandbox{
containers: make(map[string]*container),
},
}
r, err := a.PauseContainer(context.TODO(), req)
assert.Error(err)
assert.Equal(r, emptyResp)
a.sandbox.containers[containerID] = &container{
container: &mockContainer{
id: containerID,
processes: []int{1},
},
}
r, err = a.PauseContainer(context.TODO(), req)
assert.NoError(err)
assert.Equal(r, emptyResp)
}
func TestResumeContainer(t *testing.T) {
containerID := "1"
assert := assert.New(t)
req := &pb.ResumeContainerRequest{
ContainerId: containerID,
}
a := &agentGRPC{
sandbox: &sandbox{
containers: make(map[string]*container),
},
}
r, err := a.ResumeContainer(context.TODO(), req)
assert.Error(err)
assert.Equal(r, emptyResp)
a.sandbox.containers[containerID] = &container{
container: &mockContainer{
id: containerID,
processes: []int{1},
},
}
r, err = a.ResumeContainer(context.TODO(), req)
assert.NoError(err)
assert.Equal(r, emptyResp)
}
func TestHandleError(t *testing.T) {
assert := assert.New(t)
err := errors.New("")
e := handleError(true, err)
assert.Error(e)
e = handleError(true, nil)
assert.NoError(e)
e = handleError(false, err)
assert.Error(e)
e = handleError(false, nil)
assert.NoError(e)
}
func TestUpdateContainerCpuset(t *testing.T) {
var err error
assert := assert.New(t)
cgroupCpusetPath, err = ioutil.TempDir("", "cgroup")
assert.NoError(err)
defer os.Remove(cgroupCpusetPath)
cgroupPath := "kata"
err = os.MkdirAll(filepath.Join(cgroupCpusetPath, cgroupPath), 0777)
assert.NoError(err)
cookies := make(cookie)
cgroupPath += "///"
savedFunc := getCpusetGuest
getCpusetGuest = func() (string, error) {
return "", errors.New("an error")
}
err = updateCpusetPath(cgroupPath, "", cookies)
assert.Error(err)
getCpusetGuest = savedFunc
err = updateCpusetPath(cgroupPath, "0-7", cookies)
assert.NoError(err)
// run again to ensure cookies are used
err = updateCpusetPath(cgroupPath, "0-7", cookies)
assert.NoError(err)
}
func TestReseedRandomDev(t *testing.T) {
assert := assert.New(t)
a := &agentGRPC{
sandbox: &sandbox{
containers: make(map[string]*container),
},
}
req := &pb.ReseedRandomDevRequest{
Data: []byte{'f'},
}
r, err := a.ReseedRandomDev(context.TODO(), req)
assert.NoError(err)
assert.Equal(r, emptyResp)
}
func TestSingleWaitProcess(t *testing.T) {
containerID := "1"
exitCode := 9
assert := assert.New(t)
req := &pb.WaitProcessRequest{
ContainerId: containerID,
ExecId: containerID,
}
a := &agentGRPC{
sandbox: &sandbox{
containers: make(map[string]*container),
running: true,
subreaper: &agentReaper{},
},
}
a.sandbox.containers[containerID] = &container{
id: containerID,
processes: make(map[string]*process),
}
_, err := a.WaitProcess(context.TODO(), req)
// No sandbox processes
assert.Error(err)
a.sandbox.containers[containerID].processes[containerID] = &process{
id: containerID,
process: libcontainer.Process{},
exitCodeCh: make(chan int, 1),
}
go func() {
time.Sleep(time.Second)
a.sandbox.containers[containerID].processes[containerID].exitCodeCh <- exitCode
}()
resp, _ := a.WaitProcess(context.TODO(), req)
assert.Equal(resp.Status, int32(exitCode))
}
func TestMultiWaitProcess(t *testing.T) {
containerID := "1"
exitCode := 9
wg := sync.WaitGroup{}
assert := assert.New(t)
req := &pb.WaitProcessRequest{
ContainerId: containerID,
ExecId: containerID,
}
a := &agentGRPC{
sandbox: &sandbox{
containers: make(map[string]*container),
running: true,
subreaper: &agentReaper{},
},
}
a.sandbox.containers[containerID] = &container{
id: containerID,
processes: make(map[string]*process),
}
a.sandbox.containers[containerID].processes[containerID] = &process{
id: containerID,
process: libcontainer.Process{},
exitCodeCh: make(chan int, 1),
}
for i := 0; i < 10; i++ {
wg.Add(1)
go func() {
resp, _ := a.WaitProcess(context.TODO(), req)
assert.Equal(resp.Status, int32(exitCode))
wg.Done()
}()
}
go func() {
time.Sleep(time.Second)
a.sandbox.containers[containerID].processes[containerID].exitCodeCh <- exitCode
}()
wg.Wait()
}
func testAgentDetails(assert *assert.Assertions, details *pb.AgentDetails, haveSeccomp bool) {
assert.NotNil(details)
assert.Equal(details.Version, version)
assert.Equal(details.InitDaemon, os.Getpid() == 1)
var devices []string
var storages []string
for handler := range deviceHandlerList {
devices = append(devices, handler)
}
for handler := range storageHandlerList {
storages = append(storages, handler)
}
sort.Strings(details.DeviceHandlers)
sort.Strings(details.StorageHandlers)
sort.Strings(devices)
sort.Strings(storages)
assert.Equal(details.DeviceHandlers, devices)
assert.Equal(details.StorageHandlers, storages)
assert.Equal(details.SupportsSeccomp, haveSeccomp)
}
func TestGetGuestDetails(t *testing.T) {
assert := assert.New(t)
a := &agentGRPC{
sandbox: &sandbox{
containers: make(map[string]*container),
},
}
req := &pb.GuestDetailsRequest{
MemBlockSize: true,
MemHotplugProbe: true,
}
// sysfsMemoryBlockSizePath exist with error format
file, err := ioutil.TempFile("", "test")
assert.NoError(err)
oldsysfsMemoryBlockSizePath := sysfsMemoryBlockSizePath
defer func() {
sysfsMemoryBlockSizePath = oldsysfsMemoryBlockSizePath
}()
sysfsMemoryBlockSizePath = file.Name()
// empty
_, err = a.GetGuestDetails(context.TODO(), req)
assert.Error(err)
// random string
err = ioutil.WriteFile(sysfsMemoryBlockSizePath, []byte(sysfsMemoryBlockSizePath), 0666)
assert.NoError(err)
_, err = a.GetGuestDetails(context.TODO(), req)
assert.Error(err)
// sysfsMemoryBlockSizePath exist with correct format
err = ioutil.WriteFile(sysfsMemoryBlockSizePath, []byte("123"), 0666)
assert.NoError(err)
resp, err := a.GetGuestDetails(context.TODO(), req)
assert.NoError(err)
data, err := ioutil.ReadFile(sysfsMemoryBlockSizePath)
assert.NoError(err)
size, err := strconv.ParseUint(string(data[:len(data)-1]), 16, 64)
assert.NoError(err)
assert.Equal(resp.MemBlockSizeBytes, size)
seccompSupport := a.haveSeccomp()
testAgentDetails(assert, resp.AgentDetails, seccompSupport)
// sysfsMemoryBlockSizePath not exist
os.Remove(sysfsMemoryBlockSizePath)
resp, err = a.GetGuestDetails(context.TODO(), req)
assert.NoError(err)
assert.Equal(resp.MemBlockSizeBytes, uint64(0))
// sysfsMemoryHotplugProbePath exist
probeFile, err := ioutil.TempFile("", "probe")
assert.NoError(err)
// sysfsAcpiMemoryHotplugPath exist and is 1
hotplugEnabledFile, err := ioutil.TempFile("", "enabled")
assert.NoError(err)
_, err = hotplugEnabledFile.WriteString("1")
assert.NoError(err)
hotplugEnabledFile.Sync()
oldSysfsMemoryHotplugProbePath := sysfsMemoryHotplugProbePath
oldSysfsAcpiMemoryHotplugPath := sysfsAcpiMemoryHotplugPath
defer func() {
sysfsMemoryHotplugProbePath = oldSysfsMemoryHotplugProbePath
sysfsAcpiMemoryHotplugPath = oldSysfsAcpiMemoryHotplugPath
}()
sysfsMemoryHotplugProbePath = probeFile.Name()
sysfsAcpiMemoryHotplugPath = hotplugEnabledFile.Name()
resp, err = a.GetGuestDetails(context.TODO(), req)
assert.NoError(err)
assert.Equal(resp.SupportMemHotplugProbe, false)
// sysfsAcpiMemoryHotplugPath exist and is 0
_, err = hotplugEnabledFile.Seek(0, 0)
assert.NoError(err)
_, err = hotplugEnabledFile.WriteString("0")
assert.NoError(err)
hotplugEnabledFile.Sync()
resp, err = a.GetGuestDetails(context.TODO(), req)
assert.NoError(err)
assert.Equal(resp.SupportMemHotplugProbe, true)
// sysfsAcpiMemoryHotplugPath does not exist
os.Remove(sysfsAcpiMemoryHotplugPath)
resp, err = a.GetGuestDetails(context.TODO(), req)
assert.NoError(err)
assert.Equal(resp.SupportMemHotplugProbe, true)
// sysfsMemoryHotplugProbePath does not exist
os.Remove(sysfsMemoryHotplugProbePath)
resp, err = a.GetGuestDetails(context.TODO(), req)
assert.NoError(err)
assert.Equal(resp.SupportMemHotplugProbe, false)
}
func TestGetAgentDetails(t *testing.T) {
assert := assert.New(t)
a := &agentGRPC{
sandbox: &sandbox{
containers: make(map[string]*container),
},
}
details := a.getAgentDetails(context.TODO())
seccompSupport := a.haveSeccomp()
testAgentDetails(assert, details, seccompSupport)
}
func TestHaveSeccomp(t *testing.T) {
assert := assert.New(t)
a := &agentGRPC{
sandbox: &sandbox{
containers: make(map[string]*container),
},
}
savedSeccompSupport := seccompSupport
defer func() {
seccompSupport = savedSeccompSupport
}()
for _, seccompSupport := range []string{"yes", "no"} {
if seccompSupport == "yes" {
assert.Equal(a.haveSeccomp(), seccomp.IsEnabled())
} else {
assert.Equal(a.haveSeccomp(), false)
}
}
}
func TestPosixRlimitsToRlimits(t *testing.T) {
assert := assert.New(t)
expectedRlimits := []configs.Rlimit{
{Type: unix.RLIMIT_CPU, Hard: 100, Soft: 120},
{Type: unix.RLIMIT_FSIZE, Hard: 100, Soft: 120},
{Type: unix.RLIMIT_DATA, Hard: 100, Soft: 120},
{Type: unix.RLIMIT_STACK, Hard: 100, Soft: 120},
{Type: unix.RLIMIT_CORE, Hard: 100, Soft: 120},
{Type: unix.RLIMIT_RSS, Hard: 100, Soft: 120},
{Type: unix.RLIMIT_NPROC, Hard: 100, Soft: 120},
{Type: unix.RLIMIT_NOFILE, Hard: 100, Soft: 120},
{Type: unix.RLIMIT_MEMLOCK, Hard: 100, Soft: 120},
{Type: unix.RLIMIT_AS, Hard: 100, Soft: 120},
{Type: unix.RLIMIT_LOCKS, Hard: 100, Soft: 120},
{Type: unix.RLIMIT_SIGPENDING, Hard: 100, Soft: 120},
{Type: unix.RLIMIT_MSGQUEUE, Hard: 100, Soft: 120},
{Type: unix.RLIMIT_NICE, Hard: 100, Soft: 120},
{Type: unix.RLIMIT_RTPRIO, Hard: 100, Soft: 120},
{Type: unix.RLIMIT_RTTIME, Hard: 100, Soft: 120},
}
posixRlimits := []specs.POSIXRlimit{
{Type: "RLIMIT_CPU", Hard: 100, Soft: 120},
{Type: "RLIMIT_FSIZE", Hard: 100, Soft: 120},
{Type: "RLIMIT_DATA", Hard: 100, Soft: 120},
{Type: "RLIMIT_STACK", Hard: 100, Soft: 120},
{Type: "RLIMIT_CORE", Hard: 100, Soft: 120},
{Type: "RLIMIT_RSS", Hard: 100, Soft: 120},
{Type: "RLIMIT_NPROC", Hard: 100, Soft: 120},
{Type: "RLIMIT_NOFILE", Hard: 100, Soft: 120},
{Type: "RLIMIT_MEMLOCK", Hard: 100, Soft: 120},
{Type: "RLIMIT_AS", Hard: 100, Soft: 120},
{Type: "RLIMIT_LOCKS", Hard: 100, Soft: 120},
{Type: "RLIMIT_SIGPENDING", Hard: 100, Soft: 120},
{Type: "RLIMIT_MSGQUEUE", Hard: 100, Soft: 120},
{Type: "RLIMIT_NICE", Hard: 100, Soft: 120},