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kata_agent_test.go
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kata_agent_test.go
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// Copyright (c) 2018 Intel Corporation
//
// SPDX-License-Identifier: Apache-2.0
//
package virtcontainers
import (
"bufio"
"context"
"fmt"
"os"
"path"
"path/filepath"
"reflect"
"strings"
"syscall"
"testing"
specs "github.com/opencontainers/runtime-spec/specs-go"
"github.com/stretchr/testify/assert"
"github.com/kata-containers/kata-containers/src/runtime/virtcontainers/device/api"
"github.com/kata-containers/kata-containers/src/runtime/virtcontainers/device/config"
"github.com/kata-containers/kata-containers/src/runtime/virtcontainers/device/drivers"
"github.com/kata-containers/kata-containers/src/runtime/virtcontainers/device/manager"
"github.com/kata-containers/kata-containers/src/runtime/virtcontainers/persist"
pbTypes "github.com/kata-containers/kata-containers/src/runtime/virtcontainers/pkg/agent/protocols"
pb "github.com/kata-containers/kata-containers/src/runtime/virtcontainers/pkg/agent/protocols/grpc"
vcAnnotations "github.com/kata-containers/kata-containers/src/runtime/virtcontainers/pkg/annotations"
"github.com/kata-containers/kata-containers/src/runtime/virtcontainers/pkg/mock"
"github.com/kata-containers/kata-containers/src/runtime/virtcontainers/pkg/rootless"
"github.com/kata-containers/kata-containers/src/runtime/virtcontainers/types"
vcTypes "github.com/kata-containers/kata-containers/src/runtime/virtcontainers/types"
)
var (
testBlkDriveFormat = "testBlkDriveFormat"
testBlockDeviceCtrPath = "testBlockDeviceCtrPath"
testDevNo = "testDevNo"
testNvdimmID = "testNvdimmID"
testPCIPath, _ = vcTypes.PciPathFromString("04/02")
testSCSIAddr = "testSCSIAddr"
testVirtPath = "testVirtPath"
)
func TestKataAgentConnect(t *testing.T) {
assert := assert.New(t)
url, err := mock.GenerateKataMockHybridVSock()
assert.NoError(err)
hybridVSockTTRPCMock := mock.HybridVSockTTRPCMock{}
err = hybridVSockTTRPCMock.Start(url)
assert.NoError(err)
defer hybridVSockTTRPCMock.Stop()
k := &kataAgent{
ctx: context.Background(),
state: KataAgentState{
URL: url,
},
}
err = k.connect(context.Background())
assert.NoError(err)
assert.NotNil(k.client)
}
func TestKataAgentDisconnect(t *testing.T) {
assert := assert.New(t)
url, err := mock.GenerateKataMockHybridVSock()
assert.NoError(err)
hybridVSockTTRPCMock := mock.HybridVSockTTRPCMock{}
err = hybridVSockTTRPCMock.Start(url)
assert.NoError(err)
defer hybridVSockTTRPCMock.Stop()
k := &kataAgent{
ctx: context.Background(),
state: KataAgentState{
URL: url,
},
}
assert.NoError(k.connect(context.Background()))
assert.NoError(k.disconnect(context.Background()))
assert.Nil(k.client)
}
var reqList = []interface{}{
&pb.CreateSandboxRequest{},
&pb.DestroySandboxRequest{},
&pb.ExecProcessRequest{},
&pb.CreateContainerRequest{},
&pb.StartContainerRequest{},
&pb.RemoveContainerRequest{},
&pb.SignalProcessRequest{},
&pb.CheckRequest{},
&pb.WaitProcessRequest{},
&pb.StatsContainerRequest{},
&pb.SetGuestDateTimeRequest{},
}
func TestKataAgentSendReq(t *testing.T) {
assert := assert.New(t)
url, err := mock.GenerateKataMockHybridVSock()
assert.NoError(err)
hybridVSockTTRPCMock := mock.HybridVSockTTRPCMock{}
err = hybridVSockTTRPCMock.Start(url)
assert.NoError(err)
defer hybridVSockTTRPCMock.Stop()
k := &kataAgent{
ctx: context.Background(),
state: KataAgentState{
URL: url,
},
}
ctx := context.Background()
for _, req := range reqList {
_, err = k.sendReq(ctx, req)
assert.Nil(err)
}
sandbox := &Sandbox{}
container := &Container{}
execid := "processFooBar"
err = k.startContainer(ctx, sandbox, container)
assert.Nil(err)
err = k.signalProcess(ctx, container, execid, syscall.SIGKILL, true)
assert.Nil(err)
err = k.winsizeProcess(ctx, container, execid, 100, 200)
assert.Nil(err)
err = k.updateContainer(ctx, sandbox, Container{}, specs.LinuxResources{})
assert.Nil(err)
err = k.pauseContainer(ctx, sandbox, Container{})
assert.Nil(err)
err = k.resumeContainer(ctx, sandbox, Container{})
assert.Nil(err)
err = k.onlineCPUMem(ctx, 1, true)
assert.Nil(err)
_, err = k.statsContainer(ctx, sandbox, Container{})
assert.Nil(err)
err = k.check(ctx)
assert.Nil(err)
_, err = k.waitProcess(ctx, container, execid)
assert.Nil(err)
_, err = k.writeProcessStdin(ctx, container, execid, []byte{'c'})
assert.Nil(err)
err = k.closeProcessStdin(ctx, container, execid)
assert.Nil(err)
_, err = k.readProcessStdout(ctx, container, execid, []byte{})
assert.Nil(err)
_, err = k.readProcessStderr(ctx, container, execid, []byte{})
assert.Nil(err)
_, err = k.getOOMEvent(ctx)
assert.Nil(err)
}
func TestHandleEphemeralStorage(t *testing.T) {
k := kataAgent{}
var ociMounts []specs.Mount
mountSource := "/tmp/mountPoint"
os.Mkdir(mountSource, 0755)
mount := specs.Mount{
Type: KataEphemeralDevType,
Source: mountSource,
}
ociMounts = append(ociMounts, mount)
epheStorages, err := k.handleEphemeralStorage(ociMounts)
assert.Nil(t, err)
epheMountPoint := epheStorages[0].MountPoint
expected := filepath.Join(ephemeralPath(), filepath.Base(mountSource))
assert.Equal(t, epheMountPoint, expected,
"Ephemeral mount point didn't match: got %s, expecting %s", epheMountPoint, expected)
}
func TestHandleLocalStorage(t *testing.T) {
k := kataAgent{}
var ociMounts []specs.Mount
mountSource := "/tmp/mountPoint"
os.Mkdir(mountSource, 0755)
mount := specs.Mount{
Type: KataLocalDevType,
Source: mountSource,
}
sandboxID := "sandboxid"
rootfsSuffix := "rootfs"
ociMounts = append(ociMounts, mount)
localStorages, _ := k.handleLocalStorage(ociMounts, sandboxID, rootfsSuffix)
assert.NotNil(t, localStorages)
assert.Equal(t, len(localStorages), 1)
localMountPoint := localStorages[0].MountPoint
expected := filepath.Join(kataGuestSharedDir(), sandboxID, rootfsSuffix, KataLocalDevType, filepath.Base(mountSource))
assert.Equal(t, localMountPoint, expected)
}
func TestHandleDeviceBlockVolume(t *testing.T) {
k := kataAgent{}
// nolint: govet
tests := []struct {
BlockDeviceDriver string
inputMount Mount
inputDev *drivers.BlockDevice
resultVol *pb.Storage
}{
{
inputDev: &drivers.BlockDevice{
BlockDrive: &config.BlockDrive{
Pmem: true,
NvdimmID: testNvdimmID,
Format: testBlkDriveFormat,
},
},
inputMount: Mount{},
resultVol: &pb.Storage{
Driver: kataNvdimmDevType,
Source: fmt.Sprintf("/dev/pmem%s", testNvdimmID),
Fstype: testBlkDriveFormat,
Options: []string{"dax"},
},
},
{
BlockDeviceDriver: config.VirtioBlockCCW,
inputMount: Mount{
Type: "bind",
Options: []string{"ro"},
},
inputDev: &drivers.BlockDevice{
BlockDrive: &config.BlockDrive{
DevNo: testDevNo,
},
},
resultVol: &pb.Storage{
Driver: kataBlkCCWDevType,
Source: testDevNo,
Fstype: "bind",
Options: []string{"ro"},
},
},
{
BlockDeviceDriver: config.VirtioBlock,
inputMount: Mount{},
inputDev: &drivers.BlockDevice{
BlockDrive: &config.BlockDrive{
PCIPath: testPCIPath,
VirtPath: testVirtPath,
},
},
resultVol: &pb.Storage{
Driver: kataBlkDevType,
Source: testPCIPath.String(),
},
},
{
BlockDeviceDriver: config.VirtioMmio,
inputDev: &drivers.BlockDevice{
BlockDrive: &config.BlockDrive{
VirtPath: testVirtPath,
},
},
resultVol: &pb.Storage{
Driver: kataMmioBlkDevType,
Source: testVirtPath,
},
},
{
BlockDeviceDriver: config.VirtioSCSI,
inputDev: &drivers.BlockDevice{
BlockDrive: &config.BlockDrive{
SCSIAddr: testSCSIAddr,
},
},
resultVol: &pb.Storage{
Driver: kataSCSIDevType,
Source: testSCSIAddr,
},
},
}
for _, test := range tests {
c := &Container{
sandbox: &Sandbox{
config: &SandboxConfig{
HypervisorConfig: HypervisorConfig{
BlockDeviceDriver: test.BlockDeviceDriver,
},
},
},
}
vol, _ := k.handleDeviceBlockVolume(c, test.inputMount, test.inputDev)
assert.True(t, reflect.DeepEqual(vol, test.resultVol),
"Volume didn't match: got %+v, expecting %+v",
vol, test.resultVol)
}
}
func TestHandleBlockVolume(t *testing.T) {
k := kataAgent{}
c := &Container{
id: "100",
}
containers := map[string]*Container{}
containers[c.id] = c
// Create a devices for VhostUserBlk, standard DeviceBlock and direct assigned Block device
vDevID := "MockVhostUserBlk"
bDevID := "MockDeviceBlock"
dDevID := "MockDeviceBlockDirect"
vDestination := "/VhostUserBlk/destination"
bDestination := "/DeviceBlock/destination"
dDestination := "/DeviceDirectBlock/destination"
vPCIPath, err := vcTypes.PciPathFromString("01/02")
assert.NoError(t, err)
bPCIPath, err := vcTypes.PciPathFromString("03/04")
assert.NoError(t, err)
dPCIPath, err := vcTypes.PciPathFromString("04/05")
assert.NoError(t, err)
vDev := drivers.NewVhostUserBlkDevice(&config.DeviceInfo{ID: vDevID})
bDev := drivers.NewBlockDevice(&config.DeviceInfo{ID: bDevID})
dDev := drivers.NewBlockDevice(&config.DeviceInfo{ID: dDevID})
vDev.VhostUserDeviceAttrs = &config.VhostUserDeviceAttrs{PCIPath: vPCIPath}
bDev.BlockDrive = &config.BlockDrive{PCIPath: bPCIPath}
dDev.BlockDrive = &config.BlockDrive{PCIPath: dPCIPath}
var devices []api.Device
devices = append(devices, vDev, bDev, dDev)
// Create a VhostUserBlk mount and a DeviceBlock mount
var mounts []Mount
vMount := Mount{
BlockDeviceID: vDevID,
Destination: vDestination,
}
bMount := Mount{
BlockDeviceID: bDevID,
Destination: bDestination,
Type: "bind",
Options: []string{"bind"},
}
dMount := Mount{
BlockDeviceID: dDevID,
Destination: dDestination,
Type: "ext4",
Options: []string{"ro"},
}
mounts = append(mounts, vMount, bMount, dMount)
tmpDir := "/vhost/user/dir"
dm := manager.NewDeviceManager(manager.VirtioBlock, true, tmpDir, devices)
sConfig := SandboxConfig{}
sConfig.HypervisorConfig.BlockDeviceDriver = manager.VirtioBlock
sandbox := Sandbox{
id: "100",
containers: containers,
hypervisor: &mockHypervisor{},
devManager: dm,
ctx: context.Background(),
config: &sConfig,
}
containers[c.id].sandbox = &sandbox
containers[c.id].mounts = mounts
volumeStorages, err := k.handleBlockVolumes(c)
assert.Nil(t, err, "Error while handling block volumes")
vStorage := &pb.Storage{
MountPoint: vDestination,
Fstype: "bind",
Options: []string{"bind"},
Driver: kataBlkDevType,
Source: vPCIPath.String(),
}
bStorage := &pb.Storage{
MountPoint: bDestination,
Fstype: "bind",
Options: []string{"bind"},
Driver: kataBlkDevType,
Source: bPCIPath.String(),
}
dStorage := &pb.Storage{
MountPoint: dDestination,
Fstype: "ext4",
Options: []string{"ro"},
Driver: kataBlkDevType,
Source: dPCIPath.String(),
}
assert.Equal(t, vStorage, volumeStorages[0], "Error while handle VhostUserBlk type block volume")
assert.Equal(t, bStorage, volumeStorages[1], "Error while handle BlockDevice type block volume")
assert.Equal(t, dStorage, volumeStorages[2], "Error while handle direct BlockDevice type block volume")
}
func TestAppendDevicesEmptyContainerDeviceList(t *testing.T) {
k := kataAgent{}
devList := []*pb.Device{}
expected := []*pb.Device{}
ctrDevices := []ContainerDevice{}
c := &Container{
sandbox: &Sandbox{
devManager: manager.NewDeviceManager("virtio-scsi", false, "", nil),
},
devices: ctrDevices,
}
updatedDevList := k.appendDevices(devList, c)
assert.True(t, reflect.DeepEqual(updatedDevList, expected),
"Device lists didn't match: got %+v, expecting %+v",
updatedDevList, expected)
}
func TestAppendDevices(t *testing.T) {
k := kataAgent{}
id := "test-append-block"
ctrDevices := []api.Device{
&drivers.BlockDevice{
GenericDevice: &drivers.GenericDevice{
ID: id,
},
BlockDrive: &config.BlockDrive{
PCIPath: testPCIPath,
},
},
}
sandboxConfig := &SandboxConfig{
HypervisorConfig: HypervisorConfig{
BlockDeviceDriver: config.VirtioBlock,
},
}
c := &Container{
sandbox: &Sandbox{
devManager: manager.NewDeviceManager("virtio-blk", false, "", ctrDevices),
config: sandboxConfig,
},
}
c.devices = append(c.devices, ContainerDevice{
ID: id,
ContainerPath: testBlockDeviceCtrPath,
})
devList := []*pb.Device{}
expected := []*pb.Device{
{
Type: kataBlkDevType,
ContainerPath: testBlockDeviceCtrPath,
Id: testPCIPath.String(),
},
}
updatedDevList := k.appendDevices(devList, c)
assert.True(t, reflect.DeepEqual(updatedDevList, expected),
"Device lists didn't match: got %+v, expecting %+v",
updatedDevList, expected)
}
func TestAppendVhostUserBlkDevices(t *testing.T) {
k := kataAgent{}
id := "test-append-vhost-user-blk"
ctrDevices := []api.Device{
&drivers.VhostUserBlkDevice{
GenericDevice: &drivers.GenericDevice{
ID: id,
},
VhostUserDeviceAttrs: &config.VhostUserDeviceAttrs{
Type: config.VhostUserBlk,
PCIPath: testPCIPath,
},
},
}
sandboxConfig := &SandboxConfig{
HypervisorConfig: HypervisorConfig{
BlockDeviceDriver: config.VirtioBlock,
},
}
testVhostUserStorePath := "/test/vhost/user/store/path"
c := &Container{
sandbox: &Sandbox{
devManager: manager.NewDeviceManager("virtio-blk", true, testVhostUserStorePath, ctrDevices),
config: sandboxConfig,
},
}
c.devices = append(c.devices, ContainerDevice{
ID: id,
ContainerPath: testBlockDeviceCtrPath,
})
devList := []*pb.Device{}
expected := []*pb.Device{
{
Type: kataBlkDevType,
ContainerPath: testBlockDeviceCtrPath,
Id: testPCIPath.String(),
},
}
updatedDevList := k.appendDevices(devList, c)
assert.True(t, reflect.DeepEqual(updatedDevList, expected),
"Device lists didn't match: got %+v, expecting %+v",
updatedDevList, expected)
}
func TestConstrainGRPCSpec(t *testing.T) {
assert := assert.New(t)
expectedCgroupPath := "/foo/bar"
g := &pb.Spec{
Hooks: &pb.Hooks{},
Mounts: []pb.Mount{
{Destination: "/dev/shm"},
},
Linux: &pb.Linux{
Seccomp: &pb.LinuxSeccomp{},
Namespaces: []pb.LinuxNamespace{
{
Type: string(specs.NetworkNamespace),
Path: "/abc/123",
},
{
Type: string(specs.MountNamespace),
Path: "/abc/123",
},
},
Resources: &pb.LinuxResources{
Devices: []pb.LinuxDeviceCgroup{},
Memory: &pb.LinuxMemory{},
CPU: &pb.LinuxCPU{},
Pids: &pb.LinuxPids{},
BlockIO: &pb.LinuxBlockIO{},
HugepageLimits: []pb.LinuxHugepageLimit{},
Network: &pb.LinuxNetwork{},
},
CgroupsPath: "system.slice:foo:bar",
Devices: []pb.LinuxDevice{
{
Path: "/dev/vfio/1",
Type: "c",
},
{
Path: "/dev/vfio/2",
Type: "c",
},
},
},
Process: &pb.Process{
SelinuxLabel: "foo",
},
}
k := kataAgent{}
k.constrainGRPCSpec(g, true, true)
// Check nil fields
assert.Nil(g.Hooks)
assert.NotNil(g.Linux.Seccomp)
assert.Nil(g.Linux.Resources.Devices)
assert.NotNil(g.Linux.Resources.Memory)
assert.Nil(g.Linux.Resources.Pids)
assert.Nil(g.Linux.Resources.BlockIO)
assert.Nil(g.Linux.Resources.HugepageLimits)
assert.Nil(g.Linux.Resources.Network)
assert.NotNil(g.Linux.Resources.CPU)
assert.Equal(g.Process.SelinuxLabel, "")
// Check namespaces
assert.Len(g.Linux.Namespaces, 1)
assert.Empty(g.Linux.Namespaces[0].Path)
// Check mounts
assert.Len(g.Mounts, 1)
// Check cgroup path
assert.Equal(expectedCgroupPath, g.Linux.CgroupsPath)
// Check Linux devices
assert.Empty(g.Linux.Devices)
}
func TestHandleShm(t *testing.T) {
assert := assert.New(t)
k := kataAgent{}
sandbox := &Sandbox{
shmSize: 8192,
}
var ociMounts []specs.Mount
mount := specs.Mount{
Type: "bind",
Destination: "/dev/shm",
}
ociMounts = append(ociMounts, mount)
k.handleShm(ociMounts, sandbox)
assert.Len(ociMounts, 1)
assert.NotEmpty(ociMounts[0].Destination)
assert.Equal(ociMounts[0].Destination, "/dev/shm")
assert.Equal(ociMounts[0].Type, "bind")
assert.NotEmpty(ociMounts[0].Source, filepath.Join(kataGuestSharedDir(), shmDir))
assert.Equal(ociMounts[0].Options, []string{"rbind"})
sandbox.shmSize = 0
k.handleShm(ociMounts, sandbox)
assert.Len(ociMounts, 1)
assert.Equal(ociMounts[0].Destination, "/dev/shm")
assert.Equal(ociMounts[0].Type, "tmpfs")
assert.Equal(ociMounts[0].Source, "shm")
sizeOption := fmt.Sprintf("size=%d", DefaultShmSize)
assert.Equal(ociMounts[0].Options, []string{"noexec", "nosuid", "nodev", "mode=1777", sizeOption})
// In case the type of mount is ephemeral, the container mount is not
// shared with the sandbox shm.
ociMounts[0].Type = KataEphemeralDevType
mountSource := "/tmp/mountPoint"
os.Mkdir(mountSource, 0755)
ociMounts[0].Source = mountSource
k.handleShm(ociMounts, sandbox)
assert.Len(ociMounts, 1)
assert.Equal(ociMounts[0].Type, KataEphemeralDevType)
assert.NotEmpty(ociMounts[0].Source, mountSource)
epheStorages, err := k.handleEphemeralStorage(ociMounts)
assert.Nil(err)
epheMountPoint := epheStorages[0].MountPoint
expected := filepath.Join(ephemeralPath(), filepath.Base(mountSource))
assert.Equal(epheMountPoint, expected,
"Ephemeral mount point didn't match: got %s, expecting %s", epheMountPoint, expected)
}
func testIsPidNamespacePresent(grpcSpec *pb.Spec) bool {
for _, ns := range grpcSpec.Linux.Namespaces {
if ns.Type == string(specs.PIDNamespace) {
return true
}
}
return false
}
func TestHandlePidNamespace(t *testing.T) {
assert := assert.New(t)
g := &pb.Spec{
Linux: &pb.Linux{
Namespaces: []pb.LinuxNamespace{
{
Type: string(specs.NetworkNamespace),
Path: "/abc/123",
},
{
Type: string(specs.MountNamespace),
Path: "/abc/123",
},
},
},
}
sandbox := &Sandbox{}
k := kataAgent{}
sharedPid := k.handlePidNamespace(g, sandbox)
assert.False(sharedPid)
assert.False(testIsPidNamespacePresent(g))
pidNs := pb.LinuxNamespace{
Type: string(specs.PIDNamespace),
Path: "",
}
utsNs := pb.LinuxNamespace{
Type: string(specs.UTSNamespace),
Path: "",
}
g.Linux.Namespaces = append(g.Linux.Namespaces, pidNs)
g.Linux.Namespaces = append(g.Linux.Namespaces, utsNs)
sharedPid = k.handlePidNamespace(g, sandbox)
assert.False(sharedPid)
assert.False(testIsPidNamespacePresent(g))
pidNs = pb.LinuxNamespace{
Type: string(specs.PIDNamespace),
Path: "/proc/112/ns/pid",
}
g.Linux.Namespaces = append(g.Linux.Namespaces, pidNs)
sharedPid = k.handlePidNamespace(g, sandbox)
assert.True(sharedPid)
assert.False(testIsPidNamespacePresent(g))
}
func TestAgentConfigure(t *testing.T) {
assert := assert.New(t)
dir, err := os.MkdirTemp("", "kata-agent-test")
assert.Nil(err)
defer os.RemoveAll(dir)
k := &kataAgent{}
h := &mockHypervisor{}
c := KataAgentConfig{}
id := "foobar"
ctx := context.Background()
err = k.configure(ctx, h, id, dir, c)
assert.Nil(err)
err = k.configure(ctx, h, id, dir, c)
assert.Nil(err)
assert.Empty(k.state.URL)
err = k.configure(ctx, h, id, dir, c)
assert.Nil(err)
}
func TestCmdToKataProcess(t *testing.T) {
assert := assert.New(t)
cmd := types.Cmd{
Args: strings.Split("foo", " "),
Envs: []types.EnvVar{},
WorkDir: "/",
User: "1000",
PrimaryGroup: "1000",
}
_, err := cmdToKataProcess(cmd)
assert.Nil(err)
cmd1 := cmd
cmd1.User = "foobar"
_, err = cmdToKataProcess(cmd1)
assert.Error(err)
cmd1 = cmd
cmd1.PrimaryGroup = "foobar"
_, err = cmdToKataProcess(cmd1)
assert.Error(err)
cmd1 = cmd
cmd1.User = "foobar:1000"
_, err = cmdToKataProcess(cmd1)
assert.Error(err)
cmd1 = cmd
cmd1.User = "1000:2000"
_, err = cmdToKataProcess(cmd1)
assert.Nil(err)
cmd1 = cmd
cmd1.SupplementaryGroups = []string{"foo"}
_, err = cmdToKataProcess(cmd1)
assert.Error(err)
cmd1 = cmd
cmd1.SupplementaryGroups = []string{"4000"}
_, err = cmdToKataProcess(cmd1)
assert.Nil(err)
}
func TestAgentCreateContainer(t *testing.T) {
assert := assert.New(t)
sandbox := &Sandbox{
ctx: context.Background(),
id: "foobar",
config: &SandboxConfig{
ID: "foobar",
HypervisorType: MockHypervisor,
HypervisorConfig: HypervisorConfig{
KernelPath: "foo",
ImagePath: "bar",
},
},
hypervisor: &mockHypervisor{},
}
store, err := persist.GetDriver()
assert.NoError(err)
assert.NotNil(store)
sandbox.store = store
container := &Container{
ctx: sandbox.ctx,
id: "barfoo",
sandboxID: "foobar",
sandbox: sandbox,
state: types.ContainerState{
Fstype: "xfs",
},
config: &ContainerConfig{
CustomSpec: &specs.Spec{},
Annotations: map[string]string{},
},
}
url, err := mock.GenerateKataMockHybridVSock()
assert.NoError(err)
hybridVSockTTRPCMock := mock.HybridVSockTTRPCMock{}
err = hybridVSockTTRPCMock.Start(url)
assert.NoError(err)
defer hybridVSockTTRPCMock.Stop()
k := &kataAgent{
ctx: context.Background(),
state: KataAgentState{
URL: url,
},
}
dir, err := os.MkdirTemp("", "kata-agent-test")
assert.Nil(err)
defer os.RemoveAll(dir)
err = k.configure(context.Background(), &mockHypervisor{}, sandbox.id, dir, KataAgentConfig{})
assert.Nil(err)
// We'll fail on container metadata file creation, but it helps increasing coverage...
_, err = k.createContainer(context.Background(), sandbox, container)
assert.Error(err)
}
func TestAgentNetworkOperation(t *testing.T) {
assert := assert.New(t)
url, err := mock.GenerateKataMockHybridVSock()
assert.NoError(err)
hybridVSockTTRPCMock := mock.HybridVSockTTRPCMock{}
err = hybridVSockTTRPCMock.Start(url)
assert.NoError(err)
defer hybridVSockTTRPCMock.Stop()
k := &kataAgent{
ctx: context.Background(),
state: KataAgentState{
URL: url,
},
}
_, err = k.updateInterface(k.ctx, nil)
assert.Nil(err)
_, err = k.listInterfaces(k.ctx)
assert.Nil(err)
_, err = k.updateRoutes(k.ctx, []*pbTypes.Route{})
assert.Nil(err)
_, err = k.listRoutes(k.ctx)
assert.Nil(err)
}
func TestKataGetAgentUrl(t *testing.T) {
assert := assert.New(t)
var err error
k := &kataAgent{vmSocket: types.VSock{}}
assert.NoError(err)
url, err := k.getAgentURL()
assert.Nil(err)
assert.NotEmpty(url)
k.vmSocket = types.HybridVSock{}
assert.NoError(err)
url, err = k.getAgentURL()
assert.Nil(err)
assert.NotEmpty(url)
}
func TestKataCopyFile(t *testing.T) {
assert := assert.New(t)
url, err := mock.GenerateKataMockHybridVSock()
assert.NoError(err)
hybridVSockTTRPCMock := mock.HybridVSockTTRPCMock{}
err = hybridVSockTTRPCMock.Start(url)
assert.NoError(err)
defer hybridVSockTTRPCMock.Stop()
k := &kataAgent{
ctx: context.Background(),
state: KataAgentState{
URL: url,
},
}
err = k.copyFile(context.Background(), "/abc/xyz/123", "/tmp")
assert.Error(err)
src, err := os.CreateTemp("", "src")
assert.NoError(err)
defer os.Remove(src.Name())
data := []byte("abcdefghi123456789")
_, err = src.Write(data)
assert.NoError(err)
assert.NoError(src.Close())
dst, err := os.CreateTemp("", "dst")
assert.NoError(err)
assert.NoError(dst.Close())
defer os.Remove(dst.Name())
orgGrpcMaxDataSize := grpcMaxDataSize
grpcMaxDataSize = 1
defer func() {
grpcMaxDataSize = orgGrpcMaxDataSize
}()
err = k.copyFile(context.Background(), src.Name(), dst.Name())
assert.NoError(err)
}
func TestKataCleanupSandbox(t *testing.T) {
assert := assert.New(t)
kataHostSharedDirSaved := kataHostSharedDir
kataHostSharedDir = func() string {
td, _ := os.MkdirTemp("", "kata-Cleanup")
return td
}
defer func() {
kataHostSharedDir = kataHostSharedDirSaved
}()
s := Sandbox{
id: "testFoo",
}
dir := kataHostSharedDir()
defer os.RemoveAll(dir)
err := os.MkdirAll(path.Join(dir, s.id), 0777)
assert.Nil(err)
k := &kataAgent{ctx: context.Background()}
k.cleanup(context.Background(), &s)
_, err = os.Stat(dir)
assert.False(os.IsExist(err))
}
func TestKataAgentKernelParams(t *testing.T) {
assert := assert.New(t)
// nolint: govet
type testData struct {
debug bool
trace bool
containerPipeSize uint32
expectedParams []Param
}