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client_test.go
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package client
import (
"archive/tar"
"bytes"
"context"
"crypto/rand"
"crypto/rsa"
"crypto/x509"
"encoding/base64"
"encoding/json"
"encoding/pem"
"fmt"
"io"
"net"
"net/http"
"os"
"path/filepath"
"runtime"
"strconv"
"strings"
"syscall"
"testing"
"time"
"github.com/containerd/containerd"
"github.com/containerd/containerd/content"
ctderrdefs "github.com/containerd/containerd/errdefs"
"github.com/containerd/containerd/images"
"github.com/containerd/containerd/namespaces"
"github.com/containerd/containerd/platforms"
"github.com/containerd/containerd/remotes/docker"
"github.com/containerd/containerd/snapshots"
"github.com/containerd/continuity/fs/fstest"
"github.com/moby/buildkit/client/llb"
"github.com/moby/buildkit/exporter/containerimage/exptypes"
gateway "github.com/moby/buildkit/frontend/gateway/client"
"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"
binfotypes "github.com/moby/buildkit/util/buildinfo/types"
"github.com/moby/buildkit/util/contentutil"
"github.com/moby/buildkit/util/entitlements"
"github.com/moby/buildkit/util/testutil"
"github.com/moby/buildkit/util/testutil/echoserver"
"github.com/moby/buildkit/util/testutil/httpserver"
"github.com/moby/buildkit/util/testutil/integration"
ocispecs "github.com/opencontainers/image-spec/specs-go/v1"
"github.com/pkg/errors"
"github.com/stretchr/testify/require"
"golang.org/x/crypto/ssh/agent"
"golang.org/x/sync/errgroup"
)
func init() {
if integration.IsTestDockerd() {
integration.InitDockerdWorker()
} else {
integration.InitOCIWorker()
integration.InitContainerdWorker()
}
}
type nopWriteCloser struct {
io.Writer
}
func (nopWriteCloser) Close() error { return nil }
func TestIntegration(t *testing.T) {
mirroredImages := integration.OfficialImages("busybox:latest", "alpine:latest")
mirroredImages["tonistiigi/test:nolayers"] = "docker.io/tonistiigi/test:nolayers"
mirroredImages["cpuguy83/buildkit-foreign:latest"] = "docker.io/cpuguy83/buildkit-foreign:latest"
mirrors := integration.WithMirroredImages(mirroredImages)
tests := integration.TestFuncs(
testCacheExportCacheKeyLoop,
testRelativeWorkDir,
testFileOpMkdirMkfile,
testFileOpCopyRm,
testFileOpCopyIncludeExclude,
testFileOpRmWildcard,
testCallDiskUsage,
testBuildMultiMount,
testBuildHTTPSource,
testBuildPushAndValidate,
testBuildExportWithUncompressed,
testResolveAndHosts,
testUser,
testOCIExporter,
testWhiteoutParentDir,
testFrontendImageNaming,
testDuplicateWhiteouts,
testSchema1Image,
testMountWithNoSource,
testInvalidExporter,
testReadonlyRootFS,
testBasicRegistryCacheImportExport,
testBasicLocalCacheImportExport,
testCachedMounts,
testCopyFromEmptyImage,
testProxyEnv,
testLocalSymlinkEscape,
testTmpfsMounts,
testSharedCacheMounts,
testSharedCacheMountsNoScratch,
testLockedCacheMounts,
testDuplicateCacheMount,
testRunCacheWithMounts,
testParallelLocalBuilds,
testSecretEnv,
testSecretMounts,
testExtraHosts,
testShmSize,
testUlimit,
testCgroupParent,
testNetworkMode,
testFrontendMetadataReturn,
testFrontendUseSolveResults,
testSSHMount,
testStdinClosed,
testHostnameLookup,
testHostnameSpecifying,
testPushByDigest,
testBasicInlineCacheImportExport,
testExportBusyboxLocal,
testBridgeNetworking,
testCacheMountNoCache,
testExporterTargetExists,
testTarExporterWithSocket,
testTarExporterWithSocketCopy,
testTarExporterSymlink,
testMultipleRegistryCacheImportExport,
testSourceMap,
testSourceMapFromRef,
testLazyImagePush,
testStargzLazyPull,
testStargzLazyInlineCacheImportExport,
testFileOpInputSwap,
testRelativeMountpoint,
testLocalSourceDiffer,
testBuildExportZstd,
testPullZstdImage,
testMergeOp,
testMergeOpCacheInline,
testMergeOpCacheMin,
testMergeOpCacheMax,
testRmSymlink,
testMoveParentDir,
testBuildExportWithForeignLayer,
testBuildInfoExporter,
testBuildInfoInline,
testBuildInfoNoExport,
testZstdLocalCacheExport,
testZstdRegistryCacheImportExport,
testZstdLocalCacheImportExport,
testUncompressedLocalCacheImportExport,
testUncompressedRegistryCacheImportExport,
testStargzLazyRegistryCacheImportExport,
testCallInfo,
)
tests = append(tests, diffOpTestCases()...)
integration.Run(t, tests, mirrors)
integration.Run(t, integration.TestFuncs(
testSecurityMode,
testSecurityModeSysfs,
testSecurityModeErrors,
),
mirrors,
integration.WithMatrix("secmode", map[string]interface{}{
"sandbox": securitySandbox,
"insecure": securityInsecure,
}),
)
integration.Run(t, integration.TestFuncs(
testHostNetworking,
),
mirrors,
integration.WithMatrix("netmode", map[string]interface{}{
"default": defaultNetwork,
"host": hostNetwork,
}),
)
}
func newContainerd(cdAddress string) (*containerd.Client, error) {
return containerd.New(cdAddress, containerd.WithTimeout(60*time.Second))
}
// moby/buildkit#1336
func testCacheExportCacheKeyLoop(t *testing.T, sb integration.Sandbox) {
integration.SkipIfDockerd(t, sb, "remote cache export")
c, err := New(sb.Context(), sb.Address())
require.NoError(t, err)
defer c.Close()
tmpdir, err := os.MkdirTemp("", "buildkit-buildctl")
require.NoError(t, err)
defer os.RemoveAll(tmpdir)
err = os.WriteFile(filepath.Join(tmpdir, "foo"), []byte("foodata"), 0600)
require.NoError(t, err)
for _, mode := range []bool{false, true} {
func(mode bool) {
t.Run(fmt.Sprintf("mode=%v", mode), func(t *testing.T) {
buildbase := llb.Image("alpine:latest").File(llb.Copy(llb.Local("mylocal"), "foo", "foo"))
if mode { // same cache keys with a separating node go to different code-path
buildbase = buildbase.Run(llb.Shlex("true")).Root()
}
intermed := llb.Image("alpine:latest").File(llb.Copy(buildbase, "foo", "foo"))
final := llb.Scratch().File(llb.Copy(intermed, "foo", "foooooo"))
def, err := final.Marshal(sb.Context())
require.NoError(t, err)
_, err = c.Solve(sb.Context(), def, SolveOpt{
CacheExports: []CacheOptionsEntry{
{
Type: "local",
Attrs: map[string]string{
"dest": filepath.Join(tmpdir, "cache"),
},
},
},
LocalDirs: map[string]string{
"mylocal": tmpdir,
},
}, nil)
require.NoError(t, err)
})
}(mode)
}
}
func testBridgeNetworking(t *testing.T, sb integration.Sandbox) {
if os.Getenv("BUILDKIT_RUN_NETWORK_INTEGRATION_TESTS") == "" {
t.SkipNow()
}
if sb.Rootless() {
t.SkipNow()
}
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(), ":")
def, err := llb.Image("busybox").Run(llb.Shlexf("sh -c 'nc 127.0.0.1 %s | grep foo'", addrParts[len(addrParts)-1])).Marshal(sb.Context())
require.NoError(t, err)
_, err = c.Solve(sb.Context(), def, SolveOpt{}, nil)
require.Error(t, err)
}
func testHostNetworking(t *testing.T, sb integration.Sandbox) {
if os.Getenv("BUILDKIT_RUN_NETWORK_INTEGRATION_TESTS") == "" {
t.SkipNow()
}
netMode := sb.Value("netmode")
var allowedEntitlements []entitlements.Entitlement
if netMode == hostNetwork {
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(), ":")
def, err := llb.Image("busybox").Run(llb.Shlexf("sh -c 'nc 127.0.0.1 %s | grep foo'", addrParts[len(addrParts)-1]), llb.Network(llb.NetModeHost)).Marshal(sb.Context())
require.NoError(t, err)
_, err = c.Solve(sb.Context(), def, SolveOpt{
AllowedEntitlements: allowedEntitlements,
}, nil)
if netMode == hostNetwork {
require.NoError(t, err)
} else {
require.Error(t, err)
}
}
// #877
func testExportBusyboxLocal(t *testing.T, sb integration.Sandbox) {
c, err := New(sb.Context(), sb.Address())
require.NoError(t, err)
defer c.Close()
def, err := llb.Image("busybox").Marshal(sb.Context())
require.NoError(t, err)
destDir, err := os.MkdirTemp("", "buildkit")
require.NoError(t, err)
defer os.RemoveAll(destDir)
_, err = c.Solve(sb.Context(), def, SolveOpt{
Exports: []ExportEntry{
{
Type: ExporterLocal,
OutputDir: destDir,
},
},
}, nil)
require.NoError(t, err)
fi, err := os.Stat(filepath.Join(destDir, "bin/busybox"))
require.NoError(t, err)
fi2, err := os.Stat(filepath.Join(destDir, "bin/vi"))
require.NoError(t, err)
require.True(t, os.SameFile(fi, fi2))
}
func testHostnameLookup(t *testing.T, sb integration.Sandbox) {
if sb.Rootless() {
t.SkipNow()
}
c, err := New(sb.Context(), sb.Address())
require.NoError(t, err)
defer c.Close()
st := llb.Image("busybox:latest").Run(llb.Shlex(`sh -c "ping -c 1 $(hostname)"`))
def, err := st.Marshal(sb.Context())
require.NoError(t, err)
_, err = c.Solve(sb.Context(), def, SolveOpt{}, nil)
require.NoError(t, err)
}
// moby/buildkit#1301
func testHostnameSpecifying(t *testing.T, sb integration.Sandbox) {
if sb.Rootless() {
t.SkipNow()
}
c, err := New(sb.Context(), sb.Address())
require.NoError(t, err)
defer c.Close()
hostname := "testtest"
st := llb.Image("busybox:latest").With(llb.Hostname(hostname)).
Run(llb.Shlexf("sh -c 'echo $HOSTNAME | grep %s'", hostname)).
Run(llb.Shlexf("sh -c 'echo $(hostname) | grep %s'", hostname))
def, err := st.Marshal(sb.Context())
require.NoError(t, err)
_, err = c.Solve(sb.Context(), def, SolveOpt{
FrontendAttrs: map[string]string{"hostname": hostname},
}, nil)
require.NoError(t, err)
}
// moby/buildkit#614
func testStdinClosed(t *testing.T, sb integration.Sandbox) {
c, err := New(sb.Context(), sb.Address())
require.NoError(t, err)
defer c.Close()
st := llb.Image("busybox:latest").Run(llb.Shlex("cat"))
def, err := st.Marshal(sb.Context())
require.NoError(t, err)
_, err = c.Solve(sb.Context(), def, SolveOpt{}, nil)
require.NoError(t, err)
}
func testSSHMount(t *testing.T, sb integration.Sandbox) {
c, err := New(sb.Context(), sb.Address())
require.NoError(t, err)
defer c.Close()
a := agent.NewKeyring()
k, err := rsa.GenerateKey(rand.Reader, 2048)
require.NoError(t, err)
err = a.Add(agent.AddedKey{PrivateKey: k})
require.NoError(t, err)
sockPath, clean, err := makeSSHAgentSock(a)
require.NoError(t, err)
defer clean()
ssh, err := sshprovider.NewSSHAgentProvider([]sshprovider.AgentConfig{{
Paths: []string{sockPath},
}})
require.NoError(t, err)
// no ssh exposed
st := llb.Image("busybox:latest").Run(llb.Shlex(`nosuchcmd`), llb.AddSSHSocket())
def, err := st.Marshal(sb.Context())
require.NoError(t, err)
_, err = c.Solve(sb.Context(), def, SolveOpt{}, nil)
require.Error(t, err)
require.Contains(t, err.Error(), "no SSH key ")
// custom ID not exposed
st = llb.Image("busybox:latest").Run(llb.Shlex(`nosuchcmd`), llb.AddSSHSocket(llb.SSHID("customID")))
def, err = st.Marshal(sb.Context())
require.NoError(t, err)
_, err = c.Solve(sb.Context(), def, SolveOpt{
Session: []session.Attachable{ssh},
}, nil)
require.Error(t, err)
require.Contains(t, err.Error(), "unset ssh forward key customID")
// missing custom ID ignored on optional
st = llb.Image("busybox:latest").Run(llb.Shlex(`ls`), llb.AddSSHSocket(llb.SSHID("customID"), llb.SSHOptional))
def, err = st.Marshal(sb.Context())
require.NoError(t, err)
_, err = c.Solve(sb.Context(), def, SolveOpt{
Session: []session.Attachable{ssh},
}, nil)
require.NoError(t, err)
// valid socket
st = llb.Image("alpine:latest").
Run(llb.Shlex(`apk add --no-cache openssh`)).
Run(llb.Shlex(`sh -c 'echo -n $SSH_AUTH_SOCK > /out/sock && ssh-add -l > /out/out'`),
llb.AddSSHSocket())
out := st.AddMount("/out", llb.Scratch())
def, err = out.Marshal(sb.Context())
require.NoError(t, err)
destDir, err := os.MkdirTemp("", "buildkit")
require.NoError(t, err)
defer os.RemoveAll(destDir)
_, err = c.Solve(sb.Context(), def, SolveOpt{
Exports: []ExportEntry{
{
Type: ExporterLocal,
OutputDir: destDir,
},
},
Session: []session.Attachable{ssh},
}, nil)
require.NoError(t, err)
dt, err := os.ReadFile(filepath.Join(destDir, "sock"))
require.NoError(t, err)
require.Equal(t, "/run/buildkit/ssh_agent.0", string(dt))
dt, err = os.ReadFile(filepath.Join(destDir, "out"))
require.NoError(t, err)
require.Contains(t, string(dt), "2048")
require.Contains(t, string(dt), "(RSA)")
// forbidden command
st = llb.Image("alpine:latest").
Run(llb.Shlex(`apk add --no-cache openssh`)).
Run(llb.Shlex(`sh -c 'ssh-keygen -f /tmp/key -N "" && ssh-add -k /tmp/key 2> /out/out || true'`),
llb.AddSSHSocket())
out = st.AddMount("/out", llb.Scratch())
def, err = out.Marshal(sb.Context())
require.NoError(t, err)
require.NoError(t, err)
_, err = c.Solve(sb.Context(), def, SolveOpt{
Exports: []ExportEntry{
{
Type: ExporterLocal,
OutputDir: destDir,
},
},
Session: []session.Attachable{ssh},
}, nil)
require.NoError(t, err)
dt, err = os.ReadFile(filepath.Join(destDir, "out"))
require.NoError(t, err)
require.Contains(t, string(dt), "agent refused operation")
// valid socket from key on disk
st = llb.Image("alpine:latest").
Run(llb.Shlex(`apk add --no-cache openssh`)).
Run(llb.Shlex(`sh -c 'ssh-add -l > /out/out'`),
llb.AddSSHSocket())
out = st.AddMount("/out", llb.Scratch())
def, err = out.Marshal(sb.Context())
require.NoError(t, err)
k, err = rsa.GenerateKey(rand.Reader, 1024)
require.NoError(t, err)
dt = pem.EncodeToMemory(
&pem.Block{
Type: "RSA PRIVATE KEY",
Bytes: x509.MarshalPKCS1PrivateKey(k),
},
)
tmpDir, err := os.MkdirTemp("", "buildkit")
require.NoError(t, err)
defer os.RemoveAll(tmpDir)
err = os.WriteFile(filepath.Join(tmpDir, "key"), dt, 0600)
require.NoError(t, err)
ssh, err = sshprovider.NewSSHAgentProvider([]sshprovider.AgentConfig{{
Paths: []string{filepath.Join(tmpDir, "key")},
}})
require.NoError(t, err)
destDir, err = os.MkdirTemp("", "buildkit")
require.NoError(t, err)
defer os.RemoveAll(destDir)
_, err = c.Solve(sb.Context(), def, SolveOpt{
Exports: []ExportEntry{
{
Type: ExporterLocal,
OutputDir: destDir,
},
},
Session: []session.Attachable{ssh},
}, nil)
require.NoError(t, err)
dt, err = os.ReadFile(filepath.Join(destDir, "out"))
require.NoError(t, err)
require.Contains(t, string(dt), "1024")
require.Contains(t, string(dt), "(RSA)")
}
func testExtraHosts(t *testing.T, sb integration.Sandbox) {
c, err := New(sb.Context(), sb.Address())
require.NoError(t, err)
defer c.Close()
st := llb.Image("busybox:latest").
Run(llb.Shlex(`sh -c 'cat /etc/hosts | grep myhost | grep 1.2.3.4'`), llb.AddExtraHost("myhost", net.ParseIP("1.2.3.4")))
def, err := st.Marshal(sb.Context())
require.NoError(t, err)
_, err = c.Solve(sb.Context(), def, SolveOpt{}, nil)
require.NoError(t, err)
}
func testShmSize(t *testing.T, sb integration.Sandbox) {
c, err := New(sb.Context(), sb.Address())
require.NoError(t, err)
defer c.Close()
st := llb.Image("busybox:latest").Run(
llb.AddMount("/dev/shm", llb.Scratch(), llb.Tmpfs(llb.TmpfsSize(128*1024*1024))),
llb.Shlex(`sh -c 'mount | grep /dev/shm > /out/out'`),
)
out := st.AddMount("/out", llb.Scratch())
def, err := out.Marshal(sb.Context())
require.NoError(t, err)
destDir, err := os.MkdirTemp("", "buildkit")
require.NoError(t, err)
defer os.RemoveAll(destDir)
_, err = c.Solve(sb.Context(), def, SolveOpt{
Exports: []ExportEntry{
{
Type: ExporterLocal,
OutputDir: destDir,
},
},
}, nil)
require.NoError(t, err)
dt, err := os.ReadFile(filepath.Join(destDir, "out"))
require.NoError(t, err)
require.Contains(t, string(dt), `size=131072k`)
}
func testUlimit(t *testing.T, sb integration.Sandbox) {
c, err := New(sb.Context(), sb.Address())
require.NoError(t, err)
defer c.Close()
busybox := llb.Image("busybox:latest")
st := llb.Scratch()
run := func(cmd string, ro ...llb.RunOption) {
st = busybox.Run(append(ro, llb.Shlex(cmd), llb.Dir("/wd"))...).AddMount("/wd", st)
}
run(`sh -c "ulimit -n > first"`, llb.AddUlimit(llb.UlimitNofile, 1062, 1062))
run(`sh -c "ulimit -n > second"`)
def, err := st.Marshal(sb.Context())
require.NoError(t, err)
destDir, err := os.MkdirTemp("", "buildkit")
require.NoError(t, err)
defer os.RemoveAll(destDir)
_, err = c.Solve(sb.Context(), def, SolveOpt{
Exports: []ExportEntry{
{
Type: ExporterLocal,
OutputDir: destDir,
},
},
}, nil)
require.NoError(t, err)
dt, err := os.ReadFile(filepath.Join(destDir, "first"))
require.NoError(t, err)
require.Equal(t, `1062`, strings.TrimSpace(string(dt)))
dt2, err := os.ReadFile(filepath.Join(destDir, "second"))
require.NoError(t, err)
require.NotEqual(t, `1062`, strings.TrimSpace(string(dt2)))
}
func testCgroupParent(t *testing.T, sb integration.Sandbox) {
if sb.Rootless() {
t.SkipNow()
}
c, err := New(sb.Context(), sb.Address())
require.NoError(t, err)
defer c.Close()
img := llb.Image("alpine:latest")
st := llb.Scratch()
run := func(cmd string, ro ...llb.RunOption) {
st = img.Run(append(ro, llb.Shlex(cmd), llb.Dir("/wd"))...).AddMount("/wd", st)
}
run(`sh -c "cat /proc/self/cgroup > first"`, llb.WithCgroupParent("foocgroup"))
run(`sh -c "cat /proc/self/cgroup > second"`)
def, err := st.Marshal(sb.Context())
require.NoError(t, err)
destDir, err := os.MkdirTemp("", "buildkit")
require.NoError(t, err)
defer os.RemoveAll(destDir)
_, err = c.Solve(sb.Context(), def, SolveOpt{
Exports: []ExportEntry{
{
Type: ExporterLocal,
OutputDir: destDir,
},
},
}, nil)
require.NoError(t, err)
dt, err := os.ReadFile(filepath.Join(destDir, "first"))
require.NoError(t, err)
require.Contains(t, strings.TrimSpace(string(dt)), `/foocgroup/buildkit/`)
dt2, err := os.ReadFile(filepath.Join(destDir, "second"))
require.NoError(t, err)
require.NotContains(t, strings.TrimSpace(string(dt2)), `/foocgroup/buildkit/`)
}
func testNetworkMode(t *testing.T, sb integration.Sandbox) {
c, err := New(sb.Context(), sb.Address())
require.NoError(t, err)
defer c.Close()
st := llb.Image("busybox:latest").
Run(llb.Shlex(`sh -c 'wget https://example.com 2>&1 | grep "wget: bad address"'`), llb.Network(llb.NetModeNone))
def, err := st.Marshal(sb.Context())
require.NoError(t, err)
_, err = c.Solve(sb.Context(), def, SolveOpt{}, nil)
require.NoError(t, err)
st2 := llb.Image("busybox:latest").
Run(llb.Shlex(`ifconfig`), llb.Network(llb.NetModeHost))
def, err = st2.Marshal(sb.Context())
require.NoError(t, err)
_, err = c.Solve(sb.Context(), def, SolveOpt{
// Currently disabled globally by default
// AllowedEntitlements: []entitlements.Entitlement{entitlements.EntitlementNetworkHost},
}, nil)
require.Error(t, err)
require.Contains(t, err.Error(), "network.host is not allowed")
}
func testPushByDigest(t *testing.T, sb integration.Sandbox) {
integration.SkipIfDockerd(t, sb, "direct push")
requiresLinux(t)
c, err := New(sb.Context(), sb.Address())
require.NoError(t, err)
defer c.Close()
registry, err := sb.NewRegistry()
if errors.Is(err, integration.ErrRequirements) {
t.Skip(err.Error())
}
require.NoError(t, err)
st := llb.Scratch().File(llb.Mkfile("foo", 0600, []byte("data")))
def, err := st.Marshal(sb.Context())
require.NoError(t, err)
name := registry + "/foo/bar"
resp, err := c.Solve(sb.Context(), def, SolveOpt{
Exports: []ExportEntry{
{
Type: "image",
Attrs: map[string]string{
"name": name,
"push": "true",
"push-by-digest": "true",
},
},
},
}, nil)
require.NoError(t, err)
_, _, err = contentutil.ProviderFromRef(name + ":latest")
require.Error(t, err)
desc, _, err := contentutil.ProviderFromRef(name + "@" + resp.ExporterResponse[exptypes.ExporterImageDigestKey])
require.NoError(t, err)
require.Equal(t, resp.ExporterResponse[exptypes.ExporterImageDigestKey], desc.Digest.String())
require.Equal(t, images.MediaTypeDockerSchema2Manifest, desc.MediaType)
require.True(t, desc.Size > 0)
}
func testSecurityMode(t *testing.T, sb integration.Sandbox) {
command := `sh -c 'cat /proc/self/status | grep CapEff | cut -f 2 > /out'`
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 {
integration.SkipIfDockerd(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}
}
c, err := New(sb.Context(), sb.Address())
require.NoError(t, err)
defer c.Close()
st := llb.Image("busybox:latest").
Run(llb.Shlex(command),
llb.Security(mode))
def, err := st.Marshal(sb.Context())
require.NoError(t, err)
destDir, err := os.MkdirTemp("", "buildkit")
require.NoError(t, err)
defer os.RemoveAll(destDir)
_, err = c.Solve(sb.Context(), def, SolveOpt{
Exports: []ExportEntry{
{
Type: ExporterLocal,
OutputDir: destDir,
},
},
AllowedEntitlements: allowedEntitlements,
}, nil)
require.NoError(t, err)
contents, err := os.ReadFile(filepath.Join(destDir, "out"))
require.NoError(t, err)
caps, err := strconv.ParseUint(strings.TrimSpace(string(contents)), 16, 64)
require.NoError(t, err)
t.Logf("Caps: %x", caps)
assertCaps(caps)
}
func testSecurityModeSysfs(t *testing.T, sb integration.Sandbox) {
if sb.Rootless() {
t.SkipNow()
}
mode := llb.SecurityModeSandbox
var allowedEntitlements []entitlements.Entitlement
secMode := sb.Value("secmode")
if secMode == securitySandbox {
allowedEntitlements = []entitlements.Entitlement{}
} else {
integration.SkipIfDockerd(t, sb)
mode = llb.SecurityModeInsecure
allowedEntitlements = []entitlements.Entitlement{entitlements.EntitlementSecurityInsecure}
}
c, err := New(sb.Context(), sb.Address())
require.NoError(t, err)
defer c.Close()
command := `mkdir /sys/fs/cgroup/cpuset/securitytest`
st := llb.Image("busybox:latest").
Run(llb.Shlex(command),
llb.Security(mode))
def, err := st.Marshal(sb.Context())
require.NoError(t, err)
_, err = c.Solve(sb.Context(), def, SolveOpt{
AllowedEntitlements: allowedEntitlements,
}, nil)
if secMode == securitySandbox {
require.Error(t, err)
require.Contains(t, err.Error(), "did not complete successfully")
require.Contains(t, err.Error(), "mkdir /sys/fs/cgroup/cpuset/securitytest")
} else {
require.NoError(t, err)
}
}
func testSecurityModeErrors(t *testing.T, sb integration.Sandbox) {
c, err := New(sb.Context(), sb.Address())
require.NoError(t, err)
defer c.Close()
secMode := sb.Value("secmode")
if secMode == securitySandbox {
st := llb.Image("busybox:latest").
Run(llb.Shlex(`sh -c 'echo sandbox'`))
def, err := st.Marshal(sb.Context())
require.NoError(t, err)
_, err = c.Solve(sb.Context(), def, SolveOpt{
AllowedEntitlements: []entitlements.Entitlement{entitlements.EntitlementSecurityInsecure},
}, nil)
require.Error(t, err)
require.Contains(t, err.Error(), "security.insecure is not allowed")
}
if secMode == securityInsecure {
st := llb.Image("busybox:latest").
Run(llb.Shlex(`sh -c 'echo insecure'`), llb.Security(llb.SecurityModeInsecure))
def, err := st.Marshal(sb.Context())
require.NoError(t, err)
_, err = c.Solve(sb.Context(), def, SolveOpt{}, nil)
require.Error(t, err)
require.Contains(t, err.Error(), "security.insecure is not allowed")
}
}
func testFrontendImageNaming(t *testing.T, sb integration.Sandbox) {
integration.SkipIfDockerd(t, sb, "oci exporter", "direct push")
requiresLinux(t)
c, err := New(sb.Context(), sb.Address())
require.NoError(t, err)
defer c.Close()
registry, err := sb.NewRegistry()
if errors.Is(err, integration.ErrRequirements) {
t.Skip(err.Error())
}
require.NoError(t, err)
checkImageName := map[string]func(out, imageName string, exporterResponse map[string]string){
ExporterOCI: func(out, imageName string, exporterResponse map[string]string) {
// Nothing to check
return
},
ExporterDocker: func(out, imageName string, exporterResponse map[string]string) {
require.Contains(t, exporterResponse, "image.name")
require.Equal(t, exporterResponse["image.name"], "docker.io/library/"+imageName)
dt, err := os.ReadFile(out)
require.NoError(t, err)
m, err := testutil.ReadTarToMap(dt, false)
require.NoError(t, err)
_, ok := m["oci-layout"]
require.True(t, ok)
var index ocispecs.Index
err = json.Unmarshal(m["index.json"].Data, &index)
require.NoError(t, err)
require.Equal(t, 2, index.SchemaVersion)
require.Equal(t, 1, len(index.Manifests))
var dockerMfst []struct {
RepoTags []string
}
err = json.Unmarshal(m["manifest.json"].Data, &dockerMfst)
require.NoError(t, err)
require.Equal(t, 1, len(dockerMfst))
require.Equal(t, 1, len(dockerMfst[0].RepoTags))
require.Equal(t, imageName, dockerMfst[0].RepoTags[0])
},
ExporterImage: func(_, imageName string, exporterResponse map[string]string) {
require.Contains(t, exporterResponse, "image.name")
require.Equal(t, exporterResponse["image.name"], imageName)
// check if we can pull (requires containerd)
cdAddress := sb.ContainerdAddress()
if cdAddress == "" {
return
}
// TODO: make public pull helper function so this can be checked for standalone as well
client, err := containerd.New(cdAddress)
require.NoError(t, err)
defer client.Close()
ctx := namespaces.WithNamespace(sb.Context(), "buildkit")
// check image in containerd
_, err = client.ImageService().Get(ctx, imageName)
require.NoError(t, err)
// deleting image should release all content
err = client.ImageService().Delete(ctx, imageName, images.SynchronousDelete())
require.NoError(t, err)
checkAllReleasable(t, c, sb, true)
_, err = client.Pull(ctx, imageName)
require.NoError(t, err)
err = client.ImageService().Delete(ctx, imageName, images.SynchronousDelete())
require.NoError(t, err)
},
}
// A caller provided name takes precedence over one returned by the frontend. Iterate over both options.
for _, winner := range []string{"frontend", "caller"} {
winner := winner // capture loop variable.
// The double layer of `t.Run` here is required so
// that the inner-most tests (with the actual
// functionality) have definitely completed before the
// sandbox and registry cleanups (defered above) are run.
t.Run(winner, func(t *testing.T) {
for _, exp := range []string{ExporterOCI, ExporterDocker, ExporterImage} {
exp := exp // capture loop variable.
t.Run(exp, func(t *testing.T) {
destDir, err := os.MkdirTemp("", "buildkit")
require.NoError(t, err)
defer os.RemoveAll(destDir)
so := SolveOpt{
Exports: []ExportEntry{
{
Type: exp,