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buildkit
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buildkit/client/build_test.go

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package client
import (
"bytes"
"context"
"fmt"
"io"
"io/ioutil"
"os"
"path/filepath"
"strconv"
"strings"
"testing"
"time"
"github.com/moby/buildkit/client/llb"
"github.com/moby/buildkit/frontend/gateway/client"
gatewayapi "github.com/moby/buildkit/frontend/gateway/pb"
"github.com/moby/buildkit/identity"
"github.com/moby/buildkit/session"
"github.com/moby/buildkit/session/secrets/secretsprovider"
"github.com/moby/buildkit/session/sshforward/sshprovider"
"github.com/moby/buildkit/solver/errdefs"
"github.com/moby/buildkit/solver/pb"
"github.com/moby/buildkit/util/entitlements"
utilsystem "github.com/moby/buildkit/util/system"
"github.com/moby/buildkit/util/testutil/echoserver"
"github.com/moby/buildkit/util/testutil/integration"
digest "github.com/opencontainers/go-digest"
"github.com/pkg/errors"
"github.com/stretchr/testify/require"
"golang.org/x/crypto/ssh/agent"
)
func TestClientGatewayIntegration(t *testing.T) {
integration.Run(t, []integration.Test{
testClientGatewaySolve,
testClientGatewayFailedSolve,
testClientGatewayEmptySolve,
testNoBuildID,
testUnknownBuildID,
testClientGatewayContainerExecPipe,
testClientGatewayContainerCancelOnRelease,
testClientGatewayContainerPID1Fail,
testClientGatewayContainerPID1Exit,
testClientGatewayContainerMounts,
testClientGatewayContainerPID1Tty,
testClientGatewayContainerExecTty,
testClientSlowCacheRootfsRef,
testClientGatewayContainerPlatformPATH,
testClientGatewayExecError,
testClientGatewaySlowCacheExecError,
testClientGatewayExecFileActionError,
testClientGatewayContainerExtraHosts,
testWarnings,
}, integration.WithMirroredImages(integration.OfficialImages("busybox:latest")))
integration.Run(t, []integration.Test{
testClientGatewayContainerSecurityMode,
}, integration.WithMirroredImages(integration.OfficialImages("busybox:latest")),
integration.WithMatrix("secmode", map[string]interface{}{
"sandbox": securitySandbox,
"insecure": securityInsecure,
}),
)
integration.Run(t, []integration.Test{
testClientGatewayContainerHostNetworking,
},
integration.WithMirroredImages(integration.OfficialImages("busybox:latest")),
integration.WithMatrix("netmode", map[string]interface{}{
"default": defaultNetwork,
"host": hostNetwork,
}),
)
}
func testClientGatewaySolve(t *testing.T, sb integration.Sandbox) {
requiresLinux(t)
ctx := sb.Context()
c, err := New(ctx, sb.Address())
require.NoError(t, err)
defer c.Close()
product := "buildkit_test"
optKey := "test-string"
b := func(ctx context.Context, c client.Client) (*client.Result, error) {
if c.BuildOpts().Product != product {
return nil, errors.Errorf("expected product %q, got %q", product, c.BuildOpts().Product)
}
opts := c.BuildOpts().Opts
testStr, ok := opts[optKey]
if !ok {
return nil, errors.Errorf(`build option %q missing`, optKey)
}
run := llb.Image("busybox:latest").Run(
llb.ReadonlyRootFS(),
llb.Args([]string{"/bin/sh", "-ec", `echo -n '` + testStr + `' > /out/foo`}),
)
st := run.AddMount("/out", llb.Scratch())
def, err := st.Marshal(ctx)
if err != nil {
return nil, errors.Wrap(err, "failed to marshal state")
}
r, err := c.Solve(ctx, client.SolveRequest{
Definition: def.ToPB(),
})
if err != nil {
return nil, errors.Wrap(err, "failed to solve")
}
read, err := r.Ref.ReadFile(ctx, client.ReadRequest{
Filename: "/foo",
})
if err != nil {
return nil, errors.Wrap(err, "failed to read result")
}
if testStr != string(read) {
return nil, errors.Errorf("read back %q, expected %q", string(read), testStr)
}
return r, nil
}
tmpdir, err := ioutil.TempDir("", "buildkit")
require.NoError(t, err)
defer os.RemoveAll(tmpdir)
testStr := "This is a test"
_, err = c.Build(ctx, SolveOpt{
Exports: []ExportEntry{
{
Type: ExporterLocal,
OutputDir: tmpdir,
},
},
FrontendAttrs: map[string]string{
optKey: testStr,
},
}, product, b, nil)
require.NoError(t, err)
read, err := ioutil.ReadFile(filepath.Join(tmpdir, "foo"))
require.NoError(t, err)
require.Equal(t, testStr, string(read))
checkAllReleasable(t, c, sb, true)
}
func testWarnings(t *testing.T, sb integration.Sandbox) {
requiresLinux(t)
ctx := sb.Context()
c, err := New(ctx, sb.Address())
require.NoError(t, err)
defer c.Close()
product := "buildkit_test"
b := func(ctx context.Context, c client.Client) (*client.Result, error) {
st := llb.Scratch().File(llb.Mkfile("/dummy", 0600, []byte("foo")))
def, err := st.Marshal(ctx)
if err != nil {
return nil, errors.Wrap(err, "failed to marshal state")
}
dgst, _, _, _, err := st.Output().Vertex(ctx, def.Constraints).Marshal(ctx, def.Constraints)
if err != nil {
return nil, err
}
r, err := c.Solve(ctx, client.SolveRequest{
Definition: def.ToPB(),
})
if err != nil {
return nil, errors.Wrap(err, "failed to solve")
}
require.NoError(t, c.Warn(ctx, dgst, "this is warning"))
return r, nil
}
status := make(chan *SolveStatus)
statusDone := make(chan struct{})
done := make(chan struct{})
var warnings []*VertexWarning
vertexes := map[digest.Digest]struct{}{}
go func() {
defer close(statusDone)
for {
select {
case st, ok := <-status:
if !ok {
return
}
for _, s := range st.Vertexes {
vertexes[s.Digest] = struct{}{}
}
warnings = append(warnings, st.Warnings...)
case <-done:
return
}
}
}()
_, err = c.Build(ctx, SolveOpt{}, product, b, status)
require.NoError(t, err)
select {
case <-statusDone:
case <-time.After(10 * time.Second):
close(done)
}
<-statusDone
require.Equal(t, 1, len(vertexes))
require.Equal(t, 1, len(warnings))
w := warnings[0]
require.Equal(t, "this is warning", string(w.Message))
require.Equal(t, 1, w.Level)
_, ok := vertexes[w.Vertex]
require.True(t, ok)
checkAllReleasable(t, c, sb, true)
}
func testClientGatewayFailedSolve(t *testing.T, sb integration.Sandbox) {
requiresLinux(t)
ctx := sb.Context()
c, err := New(ctx, sb.Address())
require.NoError(t, err)
defer c.Close()
b := func(ctx context.Context, c client.Client) (*client.Result, error) {
return nil, errors.New("expected to fail")
}
_, err = c.Build(ctx, SolveOpt{}, "", b, nil)
require.Error(t, err)
require.Contains(t, err.Error(), "expected to fail")
}
func testClientGatewayEmptySolve(t *testing.T, sb integration.Sandbox) {
requiresLinux(t)
ctx := sb.Context()
c, err := New(ctx, sb.Address())
require.NoError(t, err)
defer c.Close()
b := func(ctx context.Context, c client.Client) (*client.Result, error) {
r, err := c.Solve(ctx, client.SolveRequest{})
if err != nil {
return nil, errors.Wrap(err, "failed to solve")
}
if r.Ref != nil || r.Refs != nil || r.Metadata != nil {
return nil, errors.Errorf("got unexpected non-empty result %+v", r)
}
return r, nil
}
_, err = c.Build(ctx, SolveOpt{}, "", b, nil)
require.NoError(t, err)
}
func testNoBuildID(t *testing.T, sb integration.Sandbox) {
requiresLinux(t)
ctx := sb.Context()
c, err := New(ctx, sb.Address())
require.NoError(t, err)
defer c.Close()
g := gatewayapi.NewLLBBridgeClient(c.conn)
_, err = g.Ping(ctx, &gatewayapi.PingRequest{})
require.Error(t, err)
require.Contains(t, err.Error(), "no buildid found in context")
}
func testUnknownBuildID(t *testing.T, sb integration.Sandbox) {
requiresLinux(t)
ctx := sb.Context()
c, err := New(ctx, sb.Address())
require.NoError(t, err)
defer c.Close()
g := c.gatewayClientForBuild(t.Name() + identity.NewID())
_, err = g.Ping(ctx, &gatewayapi.PingRequest{})
require.Error(t, err)
require.Contains(t, err.Error(), "no such job")
}
// testClientGatewayContainerCancelOnRelease is testing that all running
// processes are terminated when the container is released.
func testClientGatewayContainerCancelOnRelease(t *testing.T, sb integration.Sandbox) {
requiresLinux(t)
ctx := sb.Context()
c, err := New(ctx, sb.Address())
require.NoError(t, err)
defer c.Close()
product := "buildkit_test"
b := func(ctx context.Context, c client.Client) (*client.Result, error) {
st := llb.Image("busybox:latest")
def, err := st.Marshal(ctx)
if err != nil {
return nil, errors.Wrap(err, "failed to marshal state")
}
r, err := c.Solve(ctx, client.SolveRequest{
Definition: def.ToPB(),
})
if err != nil {
return nil, errors.Wrap(err, "failed to solve")
}
ctr, err := c.NewContainer(ctx, client.NewContainerRequest{
Mounts: []client.Mount{{
Dest: "/",
MountType: pb.MountType_BIND,
Ref: r.Ref,
}},
})
if err != nil {
return nil, err
}
start := time.Now()
defer func() {
// ensure pid1 and pid2 exit from cancel before the 10s sleep
// exits naturally
require.WithinDuration(t, start, time.Now(), 10*time.Second)
}()
// background pid1 process that starts container
pid1, err := ctr.Start(ctx, client.StartRequest{
Args: []string{"sleep", "10"},
})
require.NoError(t, err)
pid2, err := ctr.Start(ctx, client.StartRequest{
Args: []string{"sleep", "10"},
})
require.NoError(t, err)
ctr.Release(ctx)
err = pid1.Wait()
require.Contains(t, err.Error(), context.Canceled.Error())
err = pid2.Wait()
require.Contains(t, err.Error(), context.Canceled.Error())
return &client.Result{}, nil
}
_, err = c.Build(ctx, SolveOpt{}, product, b, nil)
require.NoError(t, err)
checkAllReleasable(t, c, sb, true)
}
// testClientGatewayContainerExecPipe is testing the ability to pipe multiple
// process together all started via `Exec` into the same container.
// We are mimicing: `echo testing | cat | cat > /tmp/foo && cat /tmp/foo`
func testClientGatewayContainerExecPipe(t *testing.T, sb integration.Sandbox) {
requiresLinux(t)
ctx := sb.Context()
c, err := New(ctx, sb.Address())
require.NoError(t, err)
defer c.Close()
product := "buildkit_test"
output := bytes.NewBuffer(nil)
b := func(ctx context.Context, c client.Client) (*client.Result, error) {
st := llb.Image("busybox:latest")
def, err := st.Marshal(ctx)
if err != nil {
return nil, errors.Wrap(err, "failed to marshal state")
}
r, err := c.Solve(ctx, client.SolveRequest{
Definition: def.ToPB(),
})
if err != nil {
return nil, errors.Wrap(err, "failed to solve")
}
ctr, err := c.NewContainer(ctx, client.NewContainerRequest{
Mounts: []client.Mount{{
Dest: "/",
MountType: pb.MountType_BIND,
Ref: r.Ref,
}},
})
if err != nil {
return nil, err
}
// background pid1 process that starts container
pid1, err := ctr.Start(ctx, client.StartRequest{
Args: []string{"sleep", "10"},
})
if err != nil {
ctr.Release(ctx)
return nil, err
}
defer func() {
// cancel pid1
ctr.Release(ctx)
pid1.Wait()
}()
// first part is `echo testing | cat`
stdin2 := bytes.NewBuffer([]byte("testing"))
stdin3, stdout2 := io.Pipe()
pid2, err := ctr.Start(ctx, client.StartRequest{
Args: []string{"cat"},
Cwd: "/",
Tty: false,
Stdin: ioutil.NopCloser(stdin2),
Stdout: stdout2,
})
if err != nil {
return nil, err
}
// next part is: `| cat > /tmp/test`
pid3, err := ctr.Start(ctx, client.StartRequest{
Args: []string{"sh", "-c", "cat > /tmp/test"},
Stdin: stdin3,
})
if err != nil {
return nil, err
}
err = pid2.Wait()
if err != nil {
stdout2.Close()
return nil, err
}
err = stdout2.Close()
if err != nil {
return nil, err
}
err = pid3.Wait()
if err != nil {
return nil, err
}
err = stdin3.Close()
if err != nil {
return nil, err
}
pid4, err := ctr.Start(ctx, client.StartRequest{
Args: []string{"cat", "/tmp/test"},
Stdout: &nopCloser{output},
})
if err != nil {
return nil, err
}
err = pid4.Wait()
if err != nil {
return nil, err
}
return &client.Result{}, nil
}
_, err = c.Build(ctx, SolveOpt{}, product, b, nil)
require.NoError(t, err)
require.Equal(t, "testing", output.String())
checkAllReleasable(t, c, sb, true)
}
// testClientGatewayContainerPID1Fail is testing clean shutdown and release
// of resources when the primary pid1 exits with non-zero exit status
func testClientGatewayContainerPID1Fail(t *testing.T, sb integration.Sandbox) {
requiresLinux(t)
ctx := sb.Context()
c, err := New(ctx, sb.Address())
require.NoError(t, err)
defer c.Close()
product := "buildkit_test"
b := func(ctx context.Context, c client.Client) (*client.Result, error) {
st := llb.Image("busybox:latest")
def, err := st.Marshal(ctx)
if err != nil {
return nil, errors.Wrap(err, "failed to marshal state")
}
r, err := c.Solve(ctx, client.SolveRequest{
Definition: def.ToPB(),
})
if err != nil {
return nil, errors.Wrap(err, "failed to solve")
}
ctr, err := c.NewContainer(ctx, client.NewContainerRequest{
Mounts: []client.Mount{{
Dest: "/",
MountType: pb.MountType_BIND,
Ref: r.Ref,
}},
})
if err != nil {
return nil, err
}
pid1, err := ctr.Start(ctx, client.StartRequest{
Args: []string{"sh", "-c", "exit 99"},
})
if err != nil {
ctr.Release(ctx)
return nil, err
}
defer ctr.Release(ctx)
err = pid1.Wait()
var exitError *gatewayapi.ExitError
require.ErrorAs(t, err, &exitError)
require.Equal(t, uint32(99), exitError.ExitCode)
return nil, err
}
_, err = c.Build(ctx, SolveOpt{}, product, b, nil)
require.Error(t, err)
checkAllReleasable(t, c, sb, true)
}
// testClientGatewayContainerPID1Exit is testing that all process started
// via `Exec` are shutdown when the primary pid1 process exits
func testClientGatewayContainerPID1Exit(t *testing.T, sb integration.Sandbox) {
requiresLinux(t)
ctx := sb.Context()
c, err := New(ctx, sb.Address())
require.NoError(t, err)
defer c.Close()
product := "buildkit_test"
b := func(ctx context.Context, c client.Client) (*client.Result, error) {
st := llb.Image("busybox:latest")
def, err := st.Marshal(ctx)
if err != nil {
return nil, errors.Wrap(err, "failed to marshal state")
}
r, err := c.Solve(ctx, client.SolveRequest{
Definition: def.ToPB(),
})
if err != nil {
return nil, errors.Wrap(err, "failed to solve")
}
ctr, err := c.NewContainer(ctx, client.NewContainerRequest{
Mounts: []client.Mount{{
Dest: "/",
MountType: pb.MountType_BIND,
Ref: r.Ref,
}},
})
if err != nil {
return nil, err
}
defer ctr.Release(ctx)
start := time.Now()
defer func() {
// ensure pid1 and pid2 exits from cancel before the 10s sleep
// exits naturally
require.WithinDuration(t, start, time.Now(), 10*time.Second)
// assert this test ran for at least one second for pid1
lapse := time.Since(start)
require.Greater(t, lapse.Seconds(), float64(1))
}()
pid1, err := ctr.Start(ctx, client.StartRequest{
Args: []string{"sleep", "1"},
})
require.NoError(t, err)
defer pid1.Wait()
pid2, err := ctr.Start(ctx, client.StartRequest{
Args: []string{"sleep", "10"},
})
require.NoError(t, err)
return &client.Result{}, pid2.Wait()
}
_, err = c.Build(ctx, SolveOpt{}, product, b, nil)
require.Error(t, err)
var exitError *gatewayapi.ExitError
require.ErrorAs(t, err, &exitError)
require.Equal(t, uint32(137), exitError.ExitCode)
// `exit code: 137` (ie sigkill)
require.Regexp(t, "exit code: 137", err.Error())
checkAllReleasable(t, c, sb, true)
}
// testClientGatewayContainerMounts is testing mounts derived from various
// llb.States
func testClientGatewayContainerMounts(t *testing.T, sb integration.Sandbox) {
requiresLinux(t)
ctx := sb.Context()
c, err := New(ctx, sb.Address())
require.NoError(t, err)
defer c.Close()
tmpdir, err := ioutil.TempDir("", "buildkit-buildctl")
require.NoError(t, err)
defer os.RemoveAll(tmpdir)
err = ioutil.WriteFile(filepath.Join(tmpdir, "local-file"), []byte("local"), 0644)
require.NoError(t, err)
a := agent.NewKeyring()
sockPath, clean, err := makeSSHAgentSock(a)
require.NoError(t, err)
defer clean()
ssh, err := sshprovider.NewSSHAgentProvider([]sshprovider.AgentConfig{{
ID: t.Name(),
Paths: []string{sockPath},
}})
require.NoError(t, err)
product := "buildkit_test"
b := func(ctx context.Context, c client.Client) (*client.Result, error) {
mounts := map[string]llb.State{
"/": llb.Image("busybox:latest").Run(
llb.Shlex("touch /root-file /cached/cache-file"),
llb.AddMount("/cached", llb.Scratch(), llb.AsPersistentCacheDir(t.Name(), llb.CacheMountShared)),
).Root(),
"/foo": llb.Image("busybox:latest").Run(
llb.Shlex("touch foo-file"),
llb.Dir("/tmp"),
llb.AddMount("/tmp", llb.Scratch()),
).GetMount("/tmp"),
"/local": llb.Local("mylocal"),
// TODO How do we get a results.Ref for a cache mount, tmpfs mount
}
containerMounts := []client.Mount{{
Dest: "/cached",
MountType: pb.MountType_CACHE,
CacheOpt: &pb.CacheOpt{
ID: t.Name(),
Sharing: pb.CacheSharingOpt_SHARED,
},
}, {
Dest: "/tmpfs",
MountType: pb.MountType_TMPFS,
}, {
Dest: "/run/secrets/mysecret",
MountType: pb.MountType_SECRET,
SecretOpt: &pb.SecretOpt{
ID: "/run/secrets/mysecret",
},
}, {
Dest: sockPath,
MountType: pb.MountType_SSH,
SSHOpt: &pb.SSHOpt{
ID: t.Name(),
},
}}
for mountpoint, st := range mounts {
def, err := st.Marshal(ctx)
if err != nil {
return nil, errors.Wrap(err, "failed to marshal state")
}
r, err := c.Solve(ctx, client.SolveRequest{
Definition: def.ToPB(),
})
if err != nil {
return nil, errors.Wrap(err, "failed to solve")
}
containerMounts = append(containerMounts, client.Mount{
Dest: mountpoint,
MountType: pb.MountType_BIND,
Ref: r.Ref,
})
}
ctr, err := c.NewContainer(ctx, client.NewContainerRequest{Mounts: containerMounts})
if err != nil {
return nil, err
}
pid1, err := ctr.Start(ctx, client.StartRequest{
Args: []string{"sleep", "10"},
Stderr: os.Stderr,
})
require.NoError(t, err)
defer pid1.Wait()
pid, err := ctr.Start(ctx, client.StartRequest{
Args: []string{"test", "-f", "/root-file"},
})
require.NoError(t, err)
err = pid.Wait()
require.NoError(t, err)
pid, err = ctr.Start(ctx, client.StartRequest{
Args: []string{"test", "-f", "/foo/foo-file"},
})
require.NoError(t, err)
err = pid.Wait()
require.NoError(t, err)
pid, err = ctr.Start(ctx, client.StartRequest{
Args: []string{"test", "-f", "/local/local-file"},
})
require.NoError(t, err)
err = pid.Wait()
require.NoError(t, err)
pid, err = ctr.Start(ctx, client.StartRequest{
Args: []string{"test", "-f", "/cached/cache-file"},
})
require.NoError(t, err)
err = pid.Wait()
require.NoError(t, err)
pid, err = ctr.Start(ctx, client.StartRequest{
Args: []string{"test", "-w", "/tmpfs"},
})
require.NoError(t, err)
err = pid.Wait()
require.NoError(t, err)
secretOutput := bytes.NewBuffer(nil)
pid, err = ctr.Start(ctx, client.StartRequest{
Args: []string{"cat", "/run/secrets/mysecret"},
Stdout: &nopCloser{secretOutput},
})
require.NoError(t, err)
err = pid.Wait()
require.NoError(t, err)
require.Equal(t, "foo-secret", secretOutput.String())
pid, err = ctr.Start(ctx, client.StartRequest{
Args: []string{"test", "-S", sockPath},
})
require.NoError(t, err)
err = pid.Wait()
require.NoError(t, err)
return &client.Result{}, ctr.Release(ctx)
}
_, err = c.Build(ctx, SolveOpt{
LocalDirs: map[string]string{
"mylocal": tmpdir,
},
Session: []session.Attachable{
ssh,
secretsprovider.FromMap(map[string][]byte{
"/run/secrets/mysecret": []byte("foo-secret"),
}),
},
}, product, b, nil)
require.Error(t, err)
require.Contains(t, err.Error(), context.Canceled.Error())
checkAllReleasable(t, c, sb, true)
}
// testClientGatewayContainerPID1Tty is testing that we can get a tty via
// a container pid1, executor.Run
func testClientGatewayContainerPID1Tty(t *testing.T, sb integration.Sandbox) {
requiresLinux(t)
ctx := sb.Context()
c, err := New(ctx, sb.Address())
require.NoError(t, err)
defer c.Close()
product := "buildkit_test"
inputR, inputW := io.Pipe()
output := bytes.NewBuffer(nil)
b := func(ctx context.Context, c client.Client) (*client.Result, error) {
ctx, timeout := context.WithTimeout(ctx, 10*time.Second)
defer timeout()
st := llb.Image("busybox:latest")
def, err := st.Marshal(ctx)
if err != nil {
return nil, errors.Wrap(err, "failed to marshal state")
}
r, err := c.Solve(ctx, client.SolveRequest{
Definition: def.ToPB(),
})
if err != nil {
return nil, errors.Wrap(err, "failed to solve")
}
ctr, err := c.NewContainer(ctx, client.NewContainerRequest{
Mounts: []client.Mount{{
Dest: "/",
MountType: pb.MountType_BIND,
Ref: r.Ref,
}},
})
require.NoError(t, err)
defer ctr.Release(ctx)
prompt := newTestPrompt(ctx, t, inputW, output)
pid1, err := ctr.Start(ctx, client.StartRequest{
Args: []string{"sh"},
Tty: true,
Stdin: inputR,
Stdout: &nopCloser{output},
Stderr: &nopCloser{output},
Env: []string{fmt.Sprintf("PS1=%s", prompt.String())},
})
require.NoError(t, err)
err = pid1.Resize(ctx, client.WinSize{Rows: 40, Cols: 80})
require.NoError(t, err)
prompt.SendExpect("ttysize", "80 40")
prompt.Send("cd /tmp")
prompt.SendExpect("pwd", "/tmp")
prompt.Send("echo foobar > newfile")
prompt.SendExpect("cat /tmp/newfile", "foobar")
err = pid1.Resize(ctx, client.WinSize{Rows: 60, Cols: 100})
require.NoError(t, err)
prompt.SendExpect("ttysize", "100 60")
prompt.SendExit(99)
err = pid1.Wait()
var exitError *gatewayapi.ExitError
require.ErrorAs(t, err, &exitError)
require.Equal(t, uint32(99), exitError.ExitCode)
return &client.Result{}, err
}
_, err = c.Build(ctx, SolveOpt{}, product, b, nil)
require.Error(t, err)
inputW.Close()
inputR.Close()
checkAllReleasable(t, c, sb, true)
}
type testPrompt struct {
ctx context.Context
t *testing.T
output *bytes.Buffer
input io.Writer
prompt string
pos int
}
func newTestPrompt(ctx context.Context, t *testing.T, input io.Writer, output *bytes.Buffer) *testPrompt {
return &testPrompt{
ctx: ctx,
t: t,
input: input,
output: output,
prompt: "% ",
}
}
func (p *testPrompt) String() string { return p.prompt }
func (p *testPrompt) SendExit(status int) {
p.input.Write([]byte(fmt.Sprintf("exit %d\n", status)))
}
func (p *testPrompt) Send(cmd string) {
p.input.Write([]byte(cmd + "\n"))
p.wait(p.prompt)
}
func (p *testPrompt) SendExpect(cmd, expected string) {
for {
p.input.Write([]byte(cmd + "\n"))
response := p.wait(p.prompt)
if strings.Contains(response, expected) {
return
}
}
}
func (p *testPrompt) wait(msg string) string {
for {
newOutput := p.output.String()[p.pos:]
if strings.Contains(newOutput, msg) {
p.pos += len(newOutput)
return newOutput
}
select {
case <-p.ctx.Done():
p.t.Logf("Output at timeout: %s", p.output.String())
p.t.Fatalf("Timeout waiting for %q", msg)
case <-time.After(100 * time.Millisecond):
}
}
}
// testClientGatewayContainerExecTty is testing that we can get a tty via
// executor.Exec (secondary process)
func testClientGatewayContainerExecTty(t *testing.T, sb integration.Sandbox) {
requiresLinux(t)
ctx := sb.Context()
c, err := New(ctx, sb.Address())
require.NoError(t, err)
defer c.Close()
product := "buildkit_test"
inputR, inputW := io.Pipe()
output := bytes.NewBuffer(nil)
b := func(ctx context.Context, c client.Client) (*client.Result, error) {
ctx, timeout := context.WithTimeout(ctx, 10*time.Second)
defer timeout()
st := llb.Image("busybox:latest")
def, err := st.Marshal(ctx)
if err != nil {
return nil, errors.Wrap(err, "failed to marshal state")
}
r, err := c.Solve(ctx, client.SolveRequest{
Definition: def.ToPB(),
})
if err != nil {
return nil, errors.Wrap(err, "failed to solve")
}
ctr, err := c.NewContainer(ctx, client.NewContainerRequest{
Mounts: []client.Mount{{
Dest: "/",
MountType: pb.MountType_BIND,
Ref: r.Ref,
}},
})
require.NoError(t, err)
pid1, err := ctr.Start(ctx, client.StartRequest{
Args: []string{"sleep", "10"},
})
require.NoError(t, err)
defer pid1.Wait()
defer ctr.Release(ctx)
prompt := newTestPrompt(ctx, t, inputW, output)
pid2, err := ctr.Start(ctx, client.StartRequest{
Args: []string{"sh"},
Tty: true,
Stdin: inputR,
Stdout: &nopCloser{output},
Stderr: &nopCloser{output},
Env: []string{fmt.Sprintf("PS1=%s", prompt.String())},
})
require.NoError(t, err)
err = pid2.Resize(ctx, client.WinSize{Rows: 40, Cols: 80})
require.NoError(t, err)
prompt.SendExpect("ttysize", "80 40")
prompt.Send("cd /tmp")
prompt.SendExpect("pwd", "/tmp")
prompt.Send("echo foobar > newfile")
prompt.SendExpect("cat /tmp/newfile", "foobar")
err = pid2.Resize(ctx, client.WinSize{Rows: 60, Cols: 100})
require.NoError(t, err)
prompt.SendExpect("ttysize", "100 60")
prompt.SendExit(99)
err = pid2.Wait()
var exitError *gatewayapi.ExitError
require.ErrorAs(t, err, &exitError)
require.Equal(t, uint32(99), exitError.ExitCode)
return &client.Result{}, err
}
_, err = c.Build(ctx, SolveOpt{}, product, b, nil)
require.Error(t, err)
var exitError *gatewayapi.ExitError
require.ErrorAs(t, err, &exitError)
require.Equal(t, uint32(99), exitError.ExitCode)
require.Regexp(t, "exit code: 99", err.Error())
inputW.Close()
inputR.Close()
checkAllReleasable(t, c, sb, true)
}
func testClientSlowCacheRootfsRef(t *testing.T, sb integration.Sandbox) {
requiresLinux(t)
ctx := sb.Context()
c, err := New(ctx, sb.Address())
require.NoError(t, err)
defer c.Close()
b := func(ctx context.Context, c client.Client) (*client.Result, error) {
id := identity.NewID()
input := llb.Scratch().File(
llb.Mkdir("/found", 0700).
Mkfile("/found/data", 0600, []byte(id)),
)
st := llb.Image("busybox:latest").Run(
llb.Shlexf("echo hello"),
// Only readonly mounts trigger slow cache errors.
llb.AddMount("/src", input, llb.SourcePath("/notfound"), llb.Readonly),
).Root()
def1, err := st.Marshal(ctx)
require.NoError(t, err)
res1, err := c.Solve(ctx, client.SolveRequest{
Definition: def1.ToPB(),
})
require.NoError(t, err)
ref1, err := res1.SingleRef()
require.NoError(t, err)
// First stat should error because unlazy-ing the reference causes an error
// in CalcSlowCache.
_, err = ref1.StatFile(ctx, client.StatRequest{
Path: ".",
})
require.Error(t, err)
def2, err := llb.Image("busybox:latest").Marshal(ctx)
require.NoError(t, err)
res2, err := c.Solve(ctx, client.SolveRequest{
Definition: def2.ToPB(),
})
require.NoError(t, err)
ref2, err := res2.SingleRef()
require.NoError(t, err)
// Second stat should not error because the rootfs for `busybox` should not
// have been released.
_, err = ref2.StatFile(ctx, client.StatRequest{
Path: ".",
})
require.NoError(t, err)
return res2, nil
}
_, err = c.Build(ctx, SolveOpt{}, "buildkit_test", b, nil)
require.NoError(t, err)
checkAllReleasable(t, c, sb, true)
}
// testClientGatewayContainerPlatformPATH is testing the correct default PATH
// gets set for the requested platform
func testClientGatewayContainerPlatformPATH(t *testing.T, sb integration.Sandbox) {
requiresLinux(t)
ctx := sb.Context()
c, err := New(ctx, sb.Address())
require.NoError(t, err)
defer c.Close()
product := "buildkit_test"
b := func(ctx context.Context, c client.Client) (*client.Result, error) {
st := llb.Image("busybox:latest")
def, err := st.Marshal(ctx)
require.NoError(t, err)
r, err := c.Solve(ctx, client.SolveRequest{
Definition: def.ToPB(),
})
require.NoError(t, err)
tests := []struct {
Name string
Platform *pb.Platform
Expected string
}{{
"default path",
nil,
utilsystem.DefaultPathEnvUnix,
}, {
"linux path",
&pb.Platform{OS: "linux"},
utilsystem.DefaultPathEnvUnix,
}, {
"windows path",
&pb.Platform{OS: "windows"},
utilsystem.DefaultPathEnvWindows,
}}
for _, tt := range tests {
t.Run(tt.Name, func(t *testing.T) {
ctr, err := c.NewContainer(ctx, client.NewContainerRequest{
Mounts: []client.Mount{{
Dest: "/",
MountType: pb.MountType_BIND,
Ref: r.Ref,
}},
Platform: tt.Platform,
})
require.NoError(t, err)
output := bytes.NewBuffer(nil)
pid1, err := ctr.Start(ctx, client.StartRequest{
Args: []string{"/bin/sh", "-c", "echo -n $PATH"},
Stdout: &nopCloser{output},
})
require.NoError(t, err)
err = pid1.Wait()
require.NoError(t, err)
require.Equal(t, tt.Expected, output.String())
err = ctr.Release(ctx)
require.NoError(t, err)
})
}
return &client.Result{}, err
}
_, err = c.Build(ctx, SolveOpt{}, product, b, nil)
require.NoError(t, err)
checkAllReleasable(t, c, sb, true)
}
// testClientGatewayExecError is testing gateway exec to recreate the container
// process for a failed execop.
func testClientGatewayExecError(t *testing.T, sb integration.Sandbox) {
requiresLinux(t)
ctx := sb.Context()
c, err := New(ctx, sb.Address())
require.NoError(t, err)
defer c.Close()
b := func(ctx context.Context, c client.Client) (*client.Result, error) {
id := identity.NewID()
tests := []struct {
Name string
State llb.State
NumMounts int
Paths []string
}{{
"only rootfs",
llb.Image("busybox:latest").Run(
llb.Shlexf(`sh -c "echo %s > /data && fail"`, id),
).Root(),
1, []string{"/data"},
}, {
"rootfs and readwrite scratch mount",
llb.Image("busybox:latest").Run(
llb.Shlexf(`sh -c "echo %s > /data && echo %s > /rw/data && fail"`, id, id),
llb.AddMount("/rw", llb.Scratch()),
).Root(),
2, []string{"/data", "/rw/data"},
}, {
"rootfs and readwrite mount",
llb.Image("busybox:latest").Run(
llb.Shlexf(`sh -c "echo %s > /data && echo %s > /rw/data && fail"`, id, id),
llb.AddMount("/rw", llb.Scratch().File(llb.Mkfile("foo", 0700, []byte(id)))),
).Root(),
2, []string{"/data", "/rw/data", "/rw/foo"},
}, {
"rootfs and readonly scratch mount",
llb.Image("busybox:latest").Run(
llb.Shlexf(`sh -c "echo %s > /data && echo %s > /readonly/foo"`, id, id),
llb.AddMount("/readonly", llb.Scratch(), llb.Readonly),
).Root(),
2, []string{"/data"},
}, {
"rootfs and readwrite force no output mount",
llb.Image("busybox:latest").Run(
llb.Shlexf(`sh -c "echo %s > /data && echo %s > /rw/data && fail"`, id, id),
llb.AddMount(
"/rw",
llb.Scratch().File(llb.Mkfile("foo", 0700, []byte(id))),
llb.ForceNoOutput,
),
).Root(),
2, []string{"/data", "/rw/data", "/rw/foo"},
}}
for _, tt := range tests {
tt := tt
t.Run(tt.Name, func(t *testing.T) {
def, err := tt.State.Marshal(ctx)
require.NoError(t, err)
_, solveErr := c.Solve(ctx, client.SolveRequest{
Evaluate: true,
Definition: def.ToPB(),
})
require.Error(t, solveErr)
var se *errdefs.SolveError
require.ErrorAs(t, solveErr, &se)
require.Len(t, se.InputIDs, tt.NumMounts)
require.Len(t, se.MountIDs, tt.NumMounts)
op := se.Solve.Op
require.NotNil(t, op)
require.NotNil(t, op.Op)
opExec, ok := se.Solve.Op.Op.(*pb.Op_Exec)
require.True(t, ok)
exec := opExec.Exec
var mounts []client.Mount
for i, mnt := range exec.Mounts {
mounts = append(mounts, client.Mount{
Selector: mnt.Selector,
Dest: mnt.Dest,
ResultID: se.Solve.MountIDs[i],
Readonly: mnt.Readonly,
MountType: mnt.MountType,
CacheOpt: mnt.CacheOpt,
SecretOpt: mnt.SecretOpt,
SSHOpt: mnt.SSHOpt,
})
}
ctr, err := c.NewContainer(ctx, client.NewContainerRequest{
Mounts: mounts,
NetMode: exec.Network,
Platform: op.Platform,
Constraints: op.Constraints,
})
require.NoError(t, err)
defer ctr.Release(ctx)
inputR, inputW := io.Pipe()
defer inputW.Close()
defer inputR.Close()
pid1Output := bytes.NewBuffer(nil)
prompt := newTestPrompt(ctx, t, inputW, pid1Output)
pid1, err := ctr.Start(ctx, client.StartRequest{
Args: []string{"sh"},
Tty: true,
Stdin: inputR,
Stdout: &nopCloser{pid1Output},
Stderr: &nopCloser{pid1Output},
Env: []string{fmt.Sprintf("PS1=%s", prompt.String())},
})
require.NoError(t, err)
meta := exec.Meta
for _, p := range tt.Paths {
output := bytes.NewBuffer(nil)
proc, err := ctr.Start(ctx, client.StartRequest{
Args: []string{"cat", p},
Env: meta.Env,
User: meta.User,
Cwd: meta.Cwd,
Stdout: &nopCloser{output},
SecurityMode: exec.Security,
})
require.NoError(t, err)
err = proc.Wait()
require.NoError(t, err)
require.Equal(t, id, strings.TrimSpace(output.String()))
}
prompt.SendExit(0)
err = pid1.Wait()
require.NoError(t, err)
})
}
return client.NewResult(), nil
}
_, err = c.Build(ctx, SolveOpt{}, "buildkit_test", b, nil)
require.NoError(t, err)
checkAllReleasable(t, c, sb, true)
}
// testClientGatewaySlowCacheExecError is testing gateway exec into the ref
// that failed to mount during an execop.
func testClientGatewaySlowCacheExecError(t *testing.T, sb integration.Sandbox) {
requiresLinux(t)
ctx := sb.Context()
c, err := New(ctx, sb.Address())
require.NoError(t, err)
defer c.Close()
id := identity.NewID()
input := llb.Scratch().File(
llb.Mkdir("/found", 0700).
Mkfile("/found/data", 0600, []byte(id)),
)
st := llb.Image("busybox:latest").Run(
llb.Shlexf("echo hello"),
// Only readonly mounts trigger slow cache errors.
llb.AddMount("/src", input, llb.SourcePath("/notfound"), llb.Readonly),
).Root()
def, err := st.Marshal(ctx)
require.NoError(t, err)
b := func(ctx context.Context, c client.Client) (*client.Result, error) {
_, solveErr := c.Solve(ctx, client.SolveRequest{
Evaluate: true,
Definition: def.ToPB(),
})
require.Error(t, solveErr)
var se *errdefs.SolveError
require.ErrorAs(t, solveErr, &se)
_, ok := se.Solve.Op.Op.(*pb.Op_Exec)
require.True(t, ok)
_, ok = se.Solve.Subject.(*errdefs.Solve_Cache)
require.True(t, ok)
// Slow cache errors should only have exactly one input and no outputs.
require.Len(t, se.Solve.InputIDs, 1)
require.Len(t, se.Solve.MountIDs, 0)
st := llb.Image("busybox:latest")
def, err := st.Marshal(ctx)
require.NoError(t, err)
res, err := c.Solve(ctx, client.SolveRequest{
Definition: def.ToPB(),
})
require.NoError(t, err)
ref, err := res.SingleRef()
require.NoError(t, err)
ctr, err := c.NewContainer(ctx, client.NewContainerRequest{
Mounts: []client.Mount{{
Dest: "/",
MountType: pb.MountType_BIND,
Ref: ref,
}, {
Dest: "/problem",
MountType: pb.MountType_BIND,
ResultID: se.Solve.InputIDs[0],
}},
})
require.NoError(t, err)
defer ctr.Release(ctx)
output := bytes.NewBuffer(nil)
proc, err := ctr.Start(ctx, client.StartRequest{
Args: []string{"cat", "/problem/found/data"},
Stdout: &nopCloser{output},
})
require.NoError(t, err)
err = proc.Wait()
require.NoError(t, err)
require.Equal(t, id, strings.TrimSpace(output.String()))
return client.NewResult(), nil
}
_, err = c.Build(ctx, SolveOpt{}, "buildkit_test", b, nil)
require.NoError(t, err)
checkAllReleasable(t, c, sb, true)
}
// testClientGatewayExecFileActionError is testing gateway exec into the modified
// mount of a failed fileop during a solve.
func testClientGatewayExecFileActionError(t *testing.T, sb integration.Sandbox) {
requiresLinux(t)
ctx := sb.Context()
c, err := New(ctx, sb.Address())
require.NoError(t, err)
defer c.Close()
b := func(ctx context.Context, c client.Client) (*client.Result, error) {
st := llb.Image("busybox:latest")
def, err := st.Marshal(ctx)
require.NoError(t, err)
res, err := c.Solve(ctx, client.SolveRequest{
Definition: def.ToPB(),
})
require.NoError(t, err)
debugfs, err := res.SingleRef()
require.NoError(t, err)
id := identity.NewID()
tests := []struct {
Name string
State llb.State
NumInputs int
NumOutputs int
Path string
}{{
"mkfile",
llb.Scratch().File(
llb.Mkdir("/found", 0700).
Mkfile("/found/foo", 0600, []byte(id)).
Mkfile("/notfound/foo", 0600, []byte(id)),
),
0, 3, "/input/found/foo",
}, {
"copy from input",
llb.Image("busybox").File(
llb.Copy(
llb.Scratch().File(
llb.Mkdir("/foo", 0600).Mkfile("/foo/bar", 0700, []byte(id)),
),
"/foo/bar",
"/notfound/baz",
),
),
2, 1, "/secondary/foo/bar",
}, {
"copy from action",
llb.Image("busybox").File(
llb.Copy(
llb.Mkdir("/foo", 0600).Mkfile("/foo/bar", 0700, []byte(id)).WithState(llb.Scratch()),
"/foo/bar",
"/notfound/baz",
),
),
1, 3, "/secondary/foo/bar",
}}
for _, tt := range tests {
tt := tt
t.Run(tt.Name, func(t *testing.T) {
def, err := tt.State.Marshal(ctx)
require.NoError(t, err)
_, err = c.Solve(ctx, client.SolveRequest{
Evaluate: true,
Definition: def.ToPB(),
})
require.Error(t, err)
var se *errdefs.SolveError
require.ErrorAs(t, err, &se)
require.Len(t, se.Solve.InputIDs, tt.NumInputs)
// There is one output for every action in the fileop that failed.
require.Len(t, se.Solve.MountIDs, tt.NumOutputs)
op, ok := se.Solve.Op.Op.(*pb.Op_File)
require.True(t, ok)
subject, ok := se.Solve.Subject.(*errdefs.Solve_File)
require.True(t, ok)
// Retrieve the action that failed from the sbuject.
idx := subject.File.Index
require.Less(t, int(idx), len(op.File.Actions))
action := op.File.Actions[idx]
// The output for a file action is mapped by its index.
inputID := se.MountIDs[idx]
var secondaryID string
if action.SecondaryInput != -1 {
// If the secondary input is a result from another exec, it will be one
// of the input IDs, otherwise it's a intermediary mutable from another
// action in the same fileop.
if int(action.SecondaryInput) < len(se.InputIDs) {
secondaryID = se.InputIDs[action.SecondaryInput]
} else {
secondaryID = se.MountIDs[int(action.SecondaryInput)-len(se.InputIDs)]
}
}
mounts := []client.Mount{{
Dest: "/",
MountType: pb.MountType_BIND,
Ref: debugfs,
}, {
Dest: "/input",
MountType: pb.MountType_BIND,
ResultID: inputID,
}}
if secondaryID != "" {
mounts = append(mounts, client.Mount{
Dest: "/secondary",
MountType: pb.MountType_BIND,
ResultID: secondaryID,
})
}
ctr, err := c.NewContainer(ctx, client.NewContainerRequest{Mounts: mounts})
require.NoError(t, err)
// Verify that the randomly generated data can be found in a mutable ref
// created by the actions that have succeeded.
output := bytes.NewBuffer(nil)
proc, err := ctr.Start(ctx, client.StartRequest{
Args: []string{"cat", tt.Path},
Stdout: &nopCloser{output},
})
require.NoError(t, err)
err = proc.Wait()
require.NoError(t, err)
require.Equal(t, id, strings.TrimSpace(output.String()))
err = ctr.Release(ctx)
require.NoError(t, err)
})
}
return client.NewResult(), nil
}
_, err = c.Build(ctx, SolveOpt{}, "buildkit_test", b, nil)
require.NoError(t, err)
checkAllReleasable(t, c, sb, true)
}
// testClientGatewayContainerSecurityMode ensures that the correct security mode
// is propagated to the gateway container
func testClientGatewayContainerSecurityMode(t *testing.T, sb integration.Sandbox) {
requiresLinux(t)
ctx := sb.Context()
c, err := New(ctx, sb.Address())
require.NoError(t, err)
defer c.Close()
product := "buildkit_test"
command := []string{"sh", "-c", `cat /proc/self/status | grep CapEff | cut -f 2`}
mode := llb.SecurityModeSandbox
var allowedEntitlements []entitlements.Entitlement
var assertCaps func(caps uint64)
secMode := sb.Value("secmode")
if secMode == securitySandbox {
assertCaps = func(caps uint64) {
/*
$ capsh --decode=00000000a80425fb
0x00000000a80425fb=cap_chown,cap_dac_override,cap_fowner,cap_fsetid,cap_kill,cap_setgid,cap_setuid,cap_setpcap,
cap_net_bind_service,cap_net_raw,cap_sys_chroot,cap_mknod,cap_audit_write,cap_setfcap
*/
require.EqualValues(t, 0xa80425fb, caps)
}
allowedEntitlements = []entitlements.Entitlement{}
} else {
skipDockerd(t, sb)
assertCaps = func(caps uint64) {
/*
$ capsh --decode=0000003fffffffff
0x0000003fffffffff=cap_chown,cap_dac_override,cap_dac_read_search,cap_fowner,cap_fsetid,cap_kill,cap_setgid,
cap_setuid,cap_setpcap,cap_linux_immutable,cap_net_bind_service,cap_net_broadcast,cap_net_admin,cap_net_raw,
cap_ipc_lock,cap_ipc_owner,cap_sys_module,cap_sys_rawio,cap_sys_chroot,cap_sys_ptrace,cap_sys_pacct,cap_sys_admin,
cap_sys_boot,cap_sys_nice,cap_sys_resource,cap_sys_time,cap_sys_tty_config,cap_mknod,cap_lease,cap_audit_write,
cap_audit_control,cap_setfcap,cap_mac_override,cap_mac_admin,cap_syslog,cap_wake_alarm,cap_block_suspend,cap_audit_read
*/
// require that _at least_ minimum capabilities are granted
require.EqualValues(t, 0x3fffffffff, caps&0x3fffffffff)
}
mode = llb.SecurityModeInsecure
allowedEntitlements = []entitlements.Entitlement{entitlements.EntitlementSecurityInsecure}
}
b := func(ctx context.Context, c client.Client) (*client.Result, error) {
st := llb.Image("busybox:latest")
def, err := st.Marshal(ctx)
if err != nil {
return nil, errors.Wrap(err, "failed to marshal state")
}
r, err := c.Solve(ctx, client.SolveRequest{
Definition: def.ToPB(),
})
if err != nil {
return nil, errors.Wrap(err, "failed to solve")
}
ctr, err := c.NewContainer(ctx, client.NewContainerRequest{
Mounts: []client.Mount{{
Dest: "/",
MountType: pb.MountType_BIND,
Ref: r.Ref,
}},
})
if err != nil {
return nil, err
}
stdout := bytes.NewBuffer(nil)
stderr := bytes.NewBuffer(nil)
pid, err := ctr.Start(ctx, client.StartRequest{
Args: command,
Stdout: &nopCloser{stdout},
Stderr: &nopCloser{stderr},
SecurityMode: mode,
})
if err != nil {
ctr.Release(ctx)
return nil, err
}
defer ctr.Release(ctx)
err = pid.Wait()
t.Logf("Stdout: %q", stdout.String())
t.Logf("Stderr: %q", stderr.String())
require.NoError(t, err)
capsValue, err := strconv.ParseUint(strings.TrimSpace(stdout.String()), 16, 64)
require.NoError(t, err)
assertCaps(capsValue)
return &client.Result{}, nil
}
solveOpts := SolveOpt{
AllowedEntitlements: allowedEntitlements,
}
_, err = c.Build(ctx, solveOpts, product, b, nil)
require.NoError(t, err)
checkAllReleasable(t, c, sb, true)
}
func testClientGatewayContainerExtraHosts(t *testing.T, sb integration.Sandbox) {
requiresLinux(t)
ctx := sb.Context()
product := "buildkit_test"
c, err := New(ctx, sb.Address())
require.NoError(t, err)
defer c.Close()
b := func(ctx context.Context, c client.Client) (*client.Result, error) {
st := llb.Image("busybox")
def, err := st.Marshal(ctx)
if err != nil {
return nil, errors.Wrap(err, "failed to marshal state")
}
r, err := c.Solve(ctx, client.SolveRequest{
Definition: def.ToPB(),
})
if err != nil {
return nil, errors.Wrap(err, "failed to solve")
}
ctr, err := c.NewContainer(ctx, client.NewContainerRequest{
Mounts: []client.Mount{{
Dest: "/",
MountType: pb.MountType_BIND,
Ref: r.Ref,
}},
ExtraHosts: []*pb.HostIP{{
Host: "some.host",
IP: "169.254.11.22",
}},
})
if err != nil {
return nil, err
}
stdout := bytes.NewBuffer(nil)
stderr := bytes.NewBuffer(nil)
pid, err := ctr.Start(ctx, client.StartRequest{
Args: []string{"grep", "169.254.11.22\tsome.host", "/etc/hosts"},
Stdout: &nopCloser{stdout},
Stderr: &nopCloser{stderr},
})
if err != nil {
ctr.Release(ctx)
return nil, err
}
defer ctr.Release(ctx)
err = pid.Wait()
t.Logf("Stdout: %q", stdout.String())
t.Logf("Stderr: %q", stderr.String())
require.NoError(t, err)
return &client.Result{}, nil
}
_, err = c.Build(ctx, SolveOpt{}, product, b, nil)
require.NoError(t, err)
checkAllReleasable(t, c, sb, true)
}
func testClientGatewayContainerHostNetworking(t *testing.T, sb integration.Sandbox) {
if os.Getenv("BUILDKIT_RUN_NETWORK_INTEGRATION_TESTS") == "" {
t.SkipNow()
}
if sb.Rootless() && sb.Value("netmode") == defaultNetwork {
// skip "default" network test for rootless, it always runs with "host" network
// https://github.com/moby/buildkit/blob/v0.9.0/docs/rootless.md#known-limitations
t.SkipNow()
}
requiresLinux(t)
ctx := sb.Context()
product := "buildkit_test"
var allowedEntitlements []entitlements.Entitlement
netMode := pb.NetMode_UNSET
if sb.Value("netmode") == hostNetwork {
netMode = pb.NetMode_HOST
allowedEntitlements = []entitlements.Entitlement{entitlements.EntitlementNetworkHost}
}
c, err := New(sb.Context(), sb.Address())
require.NoError(t, err)
defer c.Close()
s, err := echoserver.NewTestServer("foo")
require.NoError(t, err)
addrParts := strings.Split(s.Addr().String(), ":")
port := addrParts[len(addrParts)-1]
b := func(ctx context.Context, c client.Client) (*client.Result, error) {
st := llb.Image("busybox")
def, err := st.Marshal(ctx)
if err != nil {
return nil, errors.Wrap(err, "failed to marshal state")
}
r, err := c.Solve(ctx, client.SolveRequest{
Definition: def.ToPB(),
})
if err != nil {
return nil, errors.Wrap(err, "failed to solve")
}
ctr, err := c.NewContainer(ctx, client.NewContainerRequest{
Mounts: []client.Mount{{
Dest: "/",
MountType: pb.MountType_BIND,
Ref: r.Ref,
}},
NetMode: netMode,
})
if err != nil {
return nil, err
}
stdout := bytes.NewBuffer(nil)
stderr := bytes.NewBuffer(nil)
pid, err := ctr.Start(ctx, client.StartRequest{
Args: []string{"/bin/sh", "-c", fmt.Sprintf("nc 127.0.0.1 %s | grep foo", port)},
Stdout: &nopCloser{stdout},
Stderr: &nopCloser{stderr},
})
if err != nil {
ctr.Release(ctx)
return nil, err
}
defer ctr.Release(ctx)
err = pid.Wait()
t.Logf("Stdout: %q", stdout.String())
t.Logf("Stderr: %q", stderr.String())
if netMode == pb.NetMode_HOST {
require.NoError(t, err)
} else {
require.Error(t, err)
}
return &client.Result{}, nil
}
solveOpts := SolveOpt{
AllowedEntitlements: allowedEntitlements,
}
_, err = c.Build(ctx, solveOpts, product, b, nil)
require.NoError(t, err)
checkAllReleasable(t, c, sb, true)
}
type nopCloser struct {
io.Writer
}
func (n *nopCloser) Close() error {
return nil
}
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