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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"
"io/ioutil"
"net"
"os"
"path"
"path/filepath"
"reflect"
"strings"
"syscall"
"testing"
gpb "github.com/gogo/protobuf/types"
specs "github.com/opencontainers/runtime-spec/specs-go"
"github.com/stretchr/testify/assert"
"google.golang.org/grpc"
aTypes "github.com/kata-containers/agent/pkg/types"
pb "github.com/kata-containers/agent/protocols/grpc"
"github.com/kata-containers/runtime/pkg/rootless"
"github.com/kata-containers/runtime/virtcontainers/device/api"
"github.com/kata-containers/runtime/virtcontainers/device/config"
"github.com/kata-containers/runtime/virtcontainers/device/drivers"
"github.com/kata-containers/runtime/virtcontainers/device/manager"
"github.com/kata-containers/runtime/virtcontainers/persist"
"github.com/kata-containers/runtime/virtcontainers/pkg/mock"
vcTypes "github.com/kata-containers/runtime/virtcontainers/pkg/types"
"github.com/kata-containers/runtime/virtcontainers/types"
)
var (
testKataProxyURLTempl = "unix://%s/kata-proxy-test.sock"
testBlockDeviceCtrPath = "testBlockDeviceCtrPath"
testPCIAddr = "04/02"
)
func proxyHandlerDiscard(c net.Conn) {
buf := make([]byte, 1024)
c.Read(buf)
}
func testGenerateKataProxySockDir() (string, error) {
dir, err := ioutil.TempDir("", "kata-proxy-test")
if err != nil {
return "", err
}
return dir, nil
}
func TestKataAgentConnect(t *testing.T) {
assert := assert.New(t)
proxy := mock.ProxyUnixMock{
ClientHandler: proxyHandlerDiscard,
}
sockDir, err := testGenerateKataProxySockDir()
assert.NoError(err)
defer os.RemoveAll(sockDir)
testKataProxyURL := fmt.Sprintf(testKataProxyURLTempl, sockDir)
err = proxy.Start(testKataProxyURL)
assert.NoError(err)
defer proxy.Stop()
k := &kataAgent{
ctx: context.Background(),
state: KataAgentState{
URL: testKataProxyURL,
},
}
err = k.connect()
assert.NoError(err)
assert.NotNil(k.client)
}
func TestKataAgentDisconnect(t *testing.T) {
assert := assert.New(t)
proxy := mock.ProxyUnixMock{
ClientHandler: proxyHandlerDiscard,
}
sockDir, err := testGenerateKataProxySockDir()
assert.NoError(err)
defer os.RemoveAll(sockDir)
testKataProxyURL := fmt.Sprintf(testKataProxyURLTempl, sockDir)
err = proxy.Start(testKataProxyURL)
assert.NoError(err)
defer proxy.Stop()
k := &kataAgent{
ctx: context.Background(),
state: KataAgentState{
URL: testKataProxyURL,
},
}
assert.NoError(k.connect())
assert.NoError(k.disconnect())
assert.Nil(k.client)
}
type gRPCProxy struct{}
var emptyResp = &gpb.Empty{}
func (p *gRPCProxy) CreateContainer(ctx context.Context, req *pb.CreateContainerRequest) (*gpb.Empty, error) {
return emptyResp, nil
}
func (p *gRPCProxy) StartContainer(ctx context.Context, req *pb.StartContainerRequest) (*gpb.Empty, error) {
return emptyResp, nil
}
func (p *gRPCProxy) ExecProcess(ctx context.Context, req *pb.ExecProcessRequest) (*gpb.Empty, error) {
return emptyResp, nil
}
func (p *gRPCProxy) SignalProcess(ctx context.Context, req *pb.SignalProcessRequest) (*gpb.Empty, error) {
return emptyResp, nil
}
func (p *gRPCProxy) WaitProcess(ctx context.Context, req *pb.WaitProcessRequest) (*pb.WaitProcessResponse, error) {
return &pb.WaitProcessResponse{}, nil
}
func (p *gRPCProxy) ListProcesses(ctx context.Context, req *pb.ListProcessesRequest) (*pb.ListProcessesResponse, error) {
return &pb.ListProcessesResponse{}, nil
}
func (p *gRPCProxy) UpdateContainer(ctx context.Context, req *pb.UpdateContainerRequest) (*gpb.Empty, error) {
return emptyResp, nil
}
func (p *gRPCProxy) RemoveContainer(ctx context.Context, req *pb.RemoveContainerRequest) (*gpb.Empty, error) {
return emptyResp, nil
}
func (p *gRPCProxy) WriteStdin(ctx context.Context, req *pb.WriteStreamRequest) (*pb.WriteStreamResponse, error) {
return &pb.WriteStreamResponse{}, nil
}
func (p *gRPCProxy) ReadStdout(ctx context.Context, req *pb.ReadStreamRequest) (*pb.ReadStreamResponse, error) {
return &pb.ReadStreamResponse{}, nil
}
func (p *gRPCProxy) ReadStderr(ctx context.Context, req *pb.ReadStreamRequest) (*pb.ReadStreamResponse, error) {
return &pb.ReadStreamResponse{}, nil
}
func (p *gRPCProxy) CloseStdin(ctx context.Context, req *pb.CloseStdinRequest) (*gpb.Empty, error) {
return emptyResp, nil
}
func (p *gRPCProxy) TtyWinResize(ctx context.Context, req *pb.TtyWinResizeRequest) (*gpb.Empty, error) {
return emptyResp, nil
}
func (p *gRPCProxy) CreateSandbox(ctx context.Context, req *pb.CreateSandboxRequest) (*gpb.Empty, error) {
return emptyResp, nil
}
func (p *gRPCProxy) DestroySandbox(ctx context.Context, req *pb.DestroySandboxRequest) (*gpb.Empty, error) {
return emptyResp, nil
}
func (p *gRPCProxy) UpdateInterface(ctx context.Context, req *pb.UpdateInterfaceRequest) (*aTypes.Interface, error) {
return &aTypes.Interface{}, nil
}
func (p *gRPCProxy) UpdateRoutes(ctx context.Context, req *pb.UpdateRoutesRequest) (*pb.Routes, error) {
return &pb.Routes{}, nil
}
func (p *gRPCProxy) ListInterfaces(ctx context.Context, req *pb.ListInterfacesRequest) (*pb.Interfaces, error) {
return &pb.Interfaces{}, nil
}
func (p *gRPCProxy) ListRoutes(ctx context.Context, req *pb.ListRoutesRequest) (*pb.Routes, error) {
return &pb.Routes{}, nil
}
func (p *gRPCProxy) OnlineCPUMem(ctx context.Context, req *pb.OnlineCPUMemRequest) (*gpb.Empty, error) {
return emptyResp, nil
}
func (p *gRPCProxy) StatsContainer(ctx context.Context, req *pb.StatsContainerRequest) (*pb.StatsContainerResponse, error) {
return &pb.StatsContainerResponse{}, nil
}
func (p *gRPCProxy) Check(ctx context.Context, req *pb.CheckRequest) (*pb.HealthCheckResponse, error) {
return &pb.HealthCheckResponse{}, nil
}
func (p *gRPCProxy) Version(ctx context.Context, req *pb.CheckRequest) (*pb.VersionCheckResponse, error) {
return &pb.VersionCheckResponse{}, nil
}
func (p *gRPCProxy) PauseContainer(ctx context.Context, req *pb.PauseContainerRequest) (*gpb.Empty, error) {
return emptyResp, nil
}
func (p *gRPCProxy) ResumeContainer(ctx context.Context, req *pb.ResumeContainerRequest) (*gpb.Empty, error) {
return emptyResp, nil
}
func (p *gRPCProxy) ReseedRandomDev(ctx context.Context, req *pb.ReseedRandomDevRequest) (*gpb.Empty, error) {
return emptyResp, nil
}
func (p *gRPCProxy) GetGuestDetails(ctx context.Context, req *pb.GuestDetailsRequest) (*pb.GuestDetailsResponse, error) {
return &pb.GuestDetailsResponse{}, nil
}
func (p *gRPCProxy) SetGuestDateTime(ctx context.Context, req *pb.SetGuestDateTimeRequest) (*gpb.Empty, error) {
return &gpb.Empty{}, nil
}
func (p *gRPCProxy) CopyFile(ctx context.Context, req *pb.CopyFileRequest) (*gpb.Empty, error) {
return &gpb.Empty{}, nil
}
func (p *gRPCProxy) StartTracing(ctx context.Context, req *pb.StartTracingRequest) (*gpb.Empty, error) {
return &gpb.Empty{}, nil
}
func (p *gRPCProxy) StopTracing(ctx context.Context, req *pb.StopTracingRequest) (*gpb.Empty, error) {
return &gpb.Empty{}, nil
}
func (p *gRPCProxy) MemHotplugByProbe(ctx context.Context, req *pb.MemHotplugByProbeRequest) (*gpb.Empty, error) {
return &gpb.Empty{}, nil
}
func gRPCRegister(s *grpc.Server, srv interface{}) {
switch g := srv.(type) {
case *gRPCProxy:
pb.RegisterAgentServiceServer(s, g)
pb.RegisterHealthServer(s, g)
}
}
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)
impl := &gRPCProxy{}
proxy := mock.ProxyGRPCMock{
GRPCImplementer: impl,
GRPCRegister: gRPCRegister,
}
sockDir, err := testGenerateKataProxySockDir()
assert.Nil(err)
defer os.RemoveAll(sockDir)
testKataProxyURL := fmt.Sprintf(testKataProxyURLTempl, sockDir)
err = proxy.Start(testKataProxyURL)
assert.Nil(err)
defer proxy.Stop()
k := &kataAgent{
ctx: context.Background(),
state: KataAgentState{
URL: testKataProxyURL,
},
}
for _, req := range reqList {
_, err = k.sendReq(req)
assert.Nil(err)
}
sandbox := &Sandbox{}
container := &Container{}
execid := "processFooBar"
err = k.startContainer(sandbox, container)
assert.Nil(err)
err = k.signalProcess(container, execid, syscall.SIGKILL, true)
assert.Nil(err)
err = k.winsizeProcess(container, execid, 100, 200)
assert.Nil(err)
_, err = k.processListContainer(sandbox, Container{}, ProcessListOptions{})
assert.Nil(err)
err = k.updateContainer(sandbox, Container{}, specs.LinuxResources{})
assert.Nil(err)
err = k.pauseContainer(sandbox, Container{})
assert.Nil(err)
err = k.resumeContainer(sandbox, Container{})
assert.Nil(err)
err = k.onlineCPUMem(1, true)
assert.Nil(err)
_, err = k.statsContainer(sandbox, Container{})
assert.Nil(err)
err = k.check()
assert.Nil(err)
_, err = k.waitProcess(container, execid)
assert.Nil(err)
_, err = k.writeProcessStdin(container, execid, []byte{'c'})
assert.Nil(err)
err = k.closeProcessStdin(container, execid)
assert.Nil(err)
_, err = k.readProcessStdout(container, execid, []byte{})
assert.Nil(err)
_, err = k.readProcessStderr(container, execid, []byte{})
assert.Nil(err)
}
func TestHandleEphemeralStorage(t *testing.T) {
k := kataAgent{}
var ociMounts []specs.Mount
mountSource := "/tmp/mountPoint"
mount := specs.Mount{
Type: KataEphemeralDevType,
Source: mountSource,
}
ociMounts = append(ociMounts, mount)
epheStorages := k.handleEphemeralStorage(ociMounts)
epheMountPoint := epheStorages[0].GetMountPoint()
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 := "mountPoint"
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].GetMountPoint()
expected := filepath.Join(kataGuestSharedDir(), sandboxID, rootfsSuffix, KataLocalDevType, filepath.Base(mountSource))
assert.Equal(t, localMountPoint, expected)
}
func TestAppendDevicesEmptyContainerDeviceList(t *testing.T) {
k := kataAgent{}
devList := []*pb.Device{}
expected := []*pb.Device{}
ctrDevices := []ContainerDevice{}
c := &Container{
sandbox: &Sandbox{
devManager: manager.NewDeviceManager("virtio-scsi", 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{
PCIAddr: testPCIAddr,
},
},
}
sandboxConfig := &SandboxConfig{
HypervisorConfig: HypervisorConfig{
BlockDeviceDriver: config.VirtioBlock,
},
}
c := &Container{
sandbox: &Sandbox{
devManager: manager.NewDeviceManager("virtio-blk", ctrDevices),
config: sandboxConfig,
},
}
c.devices = append(c.devices, ContainerDevice{
ID: id,
ContainerPath: testBlockDeviceCtrPath,
})
devList := []*pb.Device{}
expected := []*pb.Device{
{
Type: kataBlkDevType,
ContainerPath: testBlockDeviceCtrPath,
Id: testPCIAddr,
},
}
updatedDevList := k.appendDevices(devList, c)
assert.True(t, reflect.DeepEqual(updatedDevList, expected),
"Device lists didn't match: got %+v, expecting %+v",
updatedDevList, expected)
}
func TestConstraintGRPCSpec(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: specs.NetworkNamespace,
Path: "/abc/123",
},
{
Type: 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",
},
}
constraintGRPCSpec(g, 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)
// 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)
}
func TestHandleShm(t *testing.T) {
assert := assert.New(t)
k := kataAgent{}
sandbox := &Sandbox{
shmSize: 8192,
}
g := &pb.Spec{
Hooks: &pb.Hooks{},
Mounts: []pb.Mount{
{Destination: "/dev/shm"},
},
}
k.handleShm(g, sandbox)
assert.Len(g.Mounts, 1)
assert.NotEmpty(g.Mounts[0].Destination)
assert.Equal(g.Mounts[0].Destination, "/dev/shm")
assert.Equal(g.Mounts[0].Type, "bind")
assert.NotEmpty(g.Mounts[0].Source, filepath.Join(kataGuestSharedDir(), shmDir))
assert.Equal(g.Mounts[0].Options, []string{"rbind"})
sandbox.shmSize = 0
k.handleShm(g, sandbox)
assert.Len(g.Mounts, 1)
assert.NotEmpty(g.Mounts[0].Destination)
assert.Equal(g.Mounts[0].Destination, "/dev/shm")
assert.Equal(g.Mounts[0].Type, "tmpfs")
assert.Equal(g.Mounts[0].Source, "shm")
sizeOption := fmt.Sprintf("size=%d", DefaultShmSize)
assert.Equal(g.Mounts[0].Options, []string{"noexec", "nosuid", "nodev", "mode=1777", sizeOption})
}
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: specs.NetworkNamespace,
Path: "/abc/123",
},
{
Type: 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: 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 TestAgentPathAPI(t *testing.T) {
assert := assert.New(t)
k1 := &kataAgent{}
k2 := &kataAgent{}
id := "foobar"
// getVMPath
path1 := k1.getVMPath(id)
path2 := k2.getVMPath(id)
assert.Equal(path1, path2)
// getSharePath
path1 = k1.getSharePath(id)
path2 = k2.getSharePath(id)
assert.Equal(path1, path2)
}
func TestAgentConfigure(t *testing.T) {
assert := assert.New(t)
dir, err := ioutil.TempDir("", "kata-agent-test")
assert.Nil(err)
defer os.RemoveAll(dir)
k := &kataAgent{}
h := &mockHypervisor{}
c := KataAgentConfig{}
id := "foobar"
err = k.configure(h, id, dir, true, c)
assert.Nil(err)
err = k.configure(h, id, dir, true, c)
assert.Nil(err)
assert.Empty(k.state.URL)
err = k.configure(h, id, dir, false, 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{},
}
newStore, err := persist.GetDriver("fs")
assert.NoError(err)
assert.NotNil(newStore)
sandbox.newStore = newStore
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{},
},
}
impl := &gRPCProxy{}
proxy := mock.ProxyGRPCMock{
GRPCImplementer: impl,
GRPCRegister: gRPCRegister,
}
sockDir, err := testGenerateKataProxySockDir()
assert.Nil(err)
defer os.RemoveAll(sockDir)
testKataProxyURL := fmt.Sprintf(testKataProxyURLTempl, sockDir)
err = proxy.Start(testKataProxyURL)
assert.Nil(err)
defer proxy.Stop()
k := &kataAgent{
ctx: context.Background(),
state: KataAgentState{
URL: testKataProxyURL,
},
}
dir, err := ioutil.TempDir("", "kata-agent-test")
assert.Nil(err)
defer os.RemoveAll(dir)
err = k.configure(&mockHypervisor{}, sandbox.id, dir, true, KataAgentConfig{})
assert.Nil(err)
// We'll fail on container metadata file creation, but it helps increasing coverage...
_, err = k.createContainer(sandbox, container)
assert.Error(err)
}
func TestAgentNetworkOperation(t *testing.T) {
assert := assert.New(t)
impl := &gRPCProxy{}
proxy := mock.ProxyGRPCMock{
GRPCImplementer: impl,
GRPCRegister: gRPCRegister,
}
sockDir, err := testGenerateKataProxySockDir()
assert.NoError(err)
defer os.RemoveAll(sockDir)
testKataProxyURL := fmt.Sprintf(testKataProxyURLTempl, sockDir)
assert.NoError(proxy.Start(testKataProxyURL))
defer proxy.Stop()
k := &kataAgent{
ctx: context.Background(),
state: KataAgentState{
URL: testKataProxyURL,
},
}
_, err = k.updateInterface(nil)
assert.Nil(err)
_, err = k.listInterfaces()
assert.Nil(err)
_, err = k.updateRoutes([]*vcTypes.Route{})
assert.Nil(err)
_, err = k.listRoutes()
assert.Nil(err)
}
func TestKataAgentSetProxy(t *testing.T) {
assert := assert.New(t)
k := &kataAgent{ctx: context.Background()}
p := &kataBuiltInProxy{}
s := &Sandbox{
ctx: context.Background(),
id: "foobar",
}
err := k.setProxy(s, p, 0, "")
assert.Error(err)
}
func TestKataGetAgentUrl(t *testing.T) {
assert := assert.New(t)
var err error
k := &kataAgent{vmSocket: types.Socket{HostPath: "/abc"}}
assert.NoError(err)
url, err := k.getAgentURL()
assert.Nil(err)
assert.NotEmpty(url)
k.vmSocket = types.VSock{}
assert.NoError(err)
url, err = k.getAgentURL()
assert.Nil(err)
assert.NotEmpty(url)
}
func TestKataCopyFile(t *testing.T) {
assert := assert.New(t)
impl := &gRPCProxy{}
proxy := mock.ProxyGRPCMock{
GRPCImplementer: impl,
GRPCRegister: gRPCRegister,
}
sockDir, err := testGenerateKataProxySockDir()
assert.NoError(err)
defer os.RemoveAll(sockDir)
testKataProxyURL := fmt.Sprintf(testKataProxyURLTempl, sockDir)
err = proxy.Start(testKataProxyURL)
assert.NoError(err)
defer proxy.Stop()
k := &kataAgent{
ctx: context.Background(),
state: KataAgentState{
URL: testKataProxyURL,
},
}
err = k.copyFile("/abc/xyz/123", "/tmp")
assert.Error(err)
src, err := ioutil.TempFile("", "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 := ioutil.TempFile("", "dst")
assert.NoError(err)
assert.NoError(dst.Close())
defer os.Remove(dst.Name())
orgGrpcMaxDataSize := grpcMaxDataSize
grpcMaxDataSize = 1
defer func() {
grpcMaxDataSize = orgGrpcMaxDataSize
}()
err = k.copyFile(src.Name(), dst.Name())
assert.NoError(err)
}
func TestKataCleanupSandbox(t *testing.T) {
assert := assert.New(t)
kataHostSharedDirSaved := kataHostSharedDir
kataHostSharedDir = func() string {
td, _ := ioutil.TempDir("", "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(&s)
_, err = os.Stat(dir)
assert.False(os.IsExist(err))
}
func TestKataAgentKernelParams(t *testing.T) {
assert := assert.New(t)
type testData struct {
debug bool
trace bool
traceMode string
traceType string
expectedParams []Param
}
debugParam := Param{Key: "agent.log", Value: "debug"}
traceIsolatedParam := Param{Key: "agent.trace", Value: "isolated"}
traceCollatedParam := Param{Key: "agent.trace", Value: "collated"}
traceFooParam := Param{Key: "agent.trace", Value: "foo"}
data := []testData{
{false, false, "", "", []Param{}},
{true, false, "", "", []Param{debugParam}},
{false, false, "foo", "", []Param{}},
{false, false, "foo", "", []Param{}},
{false, false, "", "foo", []Param{}},
{false, false, "", "foo", []Param{}},
{false, false, "foo", "foo", []Param{}},
{false, true, "foo", "foo", []Param{}},
{false, false, agentTraceModeDynamic, "", []Param{}},
{false, false, agentTraceModeStatic, "", []Param{}},
{false, false, "", agentTraceTypeIsolated, []Param{}},
{false, false, "", agentTraceTypeCollated, []Param{}},
{false, false, "foo", agentTraceTypeIsolated, []Param{}},
{false, false, "foo", agentTraceTypeCollated, []Param{}},
{false, false, agentTraceModeDynamic, agentTraceTypeIsolated, []Param{}},
{false, false, agentTraceModeDynamic, agentTraceTypeCollated, []Param{}},
{false, false, agentTraceModeStatic, agentTraceTypeCollated, []Param{}},
{false, false, agentTraceModeStatic, agentTraceTypeCollated, []Param{}},
{false, true, agentTraceModeDynamic, agentTraceTypeIsolated, []Param{}},
{false, true, agentTraceModeDynamic, agentTraceTypeCollated, []Param{}},
{true, true, agentTraceModeDynamic, agentTraceTypeCollated, []Param{debugParam}},
{false, true, "", agentTraceTypeIsolated, []Param{}},
{false, true, "", agentTraceTypeCollated, []Param{}},
{true, true, "", agentTraceTypeIsolated, []Param{debugParam}},
{true, true, "", agentTraceTypeCollated, []Param{debugParam}},
{false, true, "foo", agentTraceTypeIsolated, []Param{}},
{false, true, "foo", agentTraceTypeCollated, []Param{}},
{true, true, "foo", agentTraceTypeIsolated, []Param{debugParam}},
{true, true, "foo", agentTraceTypeCollated, []Param{debugParam}},
{false, true, agentTraceModeStatic, agentTraceTypeIsolated, []Param{traceIsolatedParam}},
{false, true, agentTraceModeStatic, agentTraceTypeCollated, []Param{traceCollatedParam}},
{true, true, agentTraceModeStatic, agentTraceTypeIsolated, []Param{traceIsolatedParam, debugParam}},
{true, true, agentTraceModeStatic, agentTraceTypeCollated, []Param{traceCollatedParam, debugParam}},
{false, true, agentTraceModeStatic, "foo", []Param{traceFooParam}},
{true, true, agentTraceModeStatic, "foo", []Param{debugParam, traceFooParam}},
}
for i, d := range data {
config := KataAgentConfig{
Debug: d.debug,
Trace: d.trace,
TraceMode: d.traceMode,
TraceType: d.traceType,
}
count := len(d.expectedParams)
params := KataAgentKernelParams(config)
if count == 0 {
assert.Emptyf(params, "test %d (%+v)", i, d)
continue