buildkit/frontend/dockerfile/dockerfile_test.go

1021 lines
25 KiB
Go

package dockerfile
import (
"archive/tar"
"bytes"
"compress/gzip"
"context"
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"net/http/httptest"
"os"
"os/exec"
"path/filepath"
"sort"
"strings"
"testing"
"time"
"github.com/containerd/containerd"
"github.com/containerd/containerd/content"
"github.com/containerd/containerd/fs/fstest"
"github.com/containerd/containerd/namespaces"
"github.com/containerd/containerd/platforms"
"github.com/moby/buildkit/client"
"github.com/moby/buildkit/frontend/dockerfile/builder"
"github.com/moby/buildkit/identity"
"github.com/moby/buildkit/util/testutil/httpserver"
"github.com/moby/buildkit/util/testutil/integration"
ocispec "github.com/opencontainers/image-spec/specs-go/v1"
"github.com/pkg/errors"
"github.com/stretchr/testify/require"
)
func TestIntegration(t *testing.T) {
integration.Run(t, []integration.Test{
testDockerfileDirs,
testDockerfileInvalidCommand,
testDockerfileADDFromURL,
testDockerfileAddArchive,
testDockerfileScratchConfig,
testExportedHistory,
testExposeExpansion,
testUser,
testDockerignore,
testDockerfileFromGit,
testCopyChown,
testCopyWildcards,
})
}
func testDockerfileDirs(t *testing.T, sb integration.Sandbox) {
t.Parallel()
dockerfile := []byte(`
FROM busybox
COPY foo /foo2
COPY foo /
RUN echo -n bar > foo3
RUN test -f foo
RUN cmp -s foo foo2
RUN cmp -s foo foo3
`)
dir, err := tmpdir(
fstest.CreateFile("Dockerfile", dockerfile, 0600),
fstest.CreateFile("foo", []byte("bar"), 0600),
)
require.NoError(t, err)
defer os.RemoveAll(dir)
args, trace := dfCmdArgs(dir, dir)
defer os.RemoveAll(trace)
cmd := sb.Cmd(args)
require.NoError(t, cmd.Run())
_, err = os.Stat(trace)
require.NoError(t, err)
// relative urls
args, trace = dfCmdArgs(".", ".")
defer os.RemoveAll(trace)
cmd = sb.Cmd(args)
cmd.Dir = dir
require.NoError(t, cmd.Run())
_, err = os.Stat(trace)
require.NoError(t, err)
// different context and dockerfile directories
dir1, err := tmpdir(
fstest.CreateFile("Dockerfile", dockerfile, 0600),
)
require.NoError(t, err)
defer os.RemoveAll(dir1)
dir2, err := tmpdir(
fstest.CreateFile("foo", []byte("bar"), 0600),
)
require.NoError(t, err)
defer os.RemoveAll(dir2)
args, trace = dfCmdArgs(dir2, dir1)
defer os.RemoveAll(trace)
cmd = sb.Cmd(args)
cmd.Dir = dir
require.NoError(t, cmd.Run())
_, err = os.Stat(trace)
require.NoError(t, err)
// TODO: test trace file output, cache hits, logs etc.
// TODO: output metadata about original dockerfile command in trace
}
func testDockerfileInvalidCommand(t *testing.T, sb integration.Sandbox) {
t.Parallel()
dockerfile := []byte(`
FROM busybox
RUN invalidcmd
`)
dir, err := tmpdir(
fstest.CreateFile("Dockerfile", dockerfile, 0600),
)
require.NoError(t, err)
defer os.RemoveAll(dir)
args, trace := dfCmdArgs(dir, dir)
defer os.RemoveAll(trace)
cmd := sb.Cmd(args)
stdout := new(bytes.Buffer)
cmd.Stderr = stdout
err = cmd.Run()
require.Error(t, err)
require.Contains(t, stdout.String(), "/bin/sh -c invalidcmd")
require.Contains(t, stdout.String(), "executor failed running")
}
func testDockerfileADDFromURL(t *testing.T, sb integration.Sandbox) {
t.Parallel()
modTime := time.Now().Add(-24 * time.Hour) // avoid falso positive with current time
resp := httpserver.Response{
Etag: identity.NewID(),
Content: []byte("content1"),
}
resp2 := httpserver.Response{
Etag: identity.NewID(),
LastModified: &modTime,
Content: []byte("content2"),
}
server := httpserver.NewTestServer(map[string]httpserver.Response{
"/foo": resp,
"/": resp2,
})
defer server.Close()
dockerfile := []byte(fmt.Sprintf(`
FROM scratch
ADD %s /dest/
`, server.URL+"/foo"))
dir, err := tmpdir(
fstest.CreateFile("Dockerfile", dockerfile, 0600),
)
require.NoError(t, err)
defer os.RemoveAll(dir)
args, trace := dfCmdArgs(dir, dir)
defer os.RemoveAll(trace)
destDir, err := tmpdir()
require.NoError(t, err)
defer os.RemoveAll(destDir)
cmd := sb.Cmd(args + fmt.Sprintf(" --exporter=local --exporter-opt output=%s", destDir))
err = cmd.Run()
require.NoError(t, err)
dt, err := ioutil.ReadFile(filepath.Join(destDir, "dest/foo"))
require.NoError(t, err)
require.Equal(t, []byte("content1"), dt)
// test the default properties
dockerfile = []byte(fmt.Sprintf(`
FROM scratch
ADD %s /dest/
`, server.URL+"/"))
dir, err = tmpdir(
fstest.CreateFile("Dockerfile", dockerfile, 0600),
)
require.NoError(t, err)
defer os.RemoveAll(dir)
args, trace = dfCmdArgs(dir, dir)
defer os.RemoveAll(trace)
destDir, err = tmpdir()
require.NoError(t, err)
defer os.RemoveAll(destDir)
cmd = sb.Cmd(args + fmt.Sprintf(" --exporter=local --exporter-opt output=%s", destDir))
err = cmd.Run()
require.NoError(t, err)
destFile := filepath.Join(destDir, "dest/__unnamed__")
dt, err = ioutil.ReadFile(destFile)
require.NoError(t, err)
require.Equal(t, []byte("content2"), dt)
fi, err := os.Stat(destFile)
require.NoError(t, err)
require.Equal(t, fi.ModTime().Format(http.TimeFormat), modTime.Format(http.TimeFormat))
}
func testDockerfileAddArchive(t *testing.T, sb integration.Sandbox) {
t.Parallel()
buf := bytes.NewBuffer(nil)
tw := tar.NewWriter(buf)
expectedContent := []byte("content0")
err := tw.WriteHeader(&tar.Header{
Name: "foo",
Typeflag: tar.TypeReg,
Size: int64(len(expectedContent)),
Mode: 0644,
})
require.NoError(t, err)
_, err = tw.Write(expectedContent)
require.NoError(t, err)
err = tw.Close()
require.NoError(t, err)
dockerfile := []byte(`
FROM scratch
ADD t.tar /
`)
dir, err := tmpdir(
fstest.CreateFile("Dockerfile", dockerfile, 0600),
fstest.CreateFile("t.tar", buf.Bytes(), 0600),
)
require.NoError(t, err)
defer os.RemoveAll(dir)
args, trace := dfCmdArgs(dir, dir)
defer os.RemoveAll(trace)
destDir, err := tmpdir()
require.NoError(t, err)
defer os.RemoveAll(destDir)
cmd := sb.Cmd(args + fmt.Sprintf(" --exporter=local --exporter-opt output=%s", destDir))
require.NoError(t, cmd.Run())
dt, err := ioutil.ReadFile(filepath.Join(destDir, "foo"))
require.NoError(t, err)
require.Equal(t, expectedContent, dt)
// add gzip tar
buf2 := bytes.NewBuffer(nil)
gz := gzip.NewWriter(buf2)
_, err = gz.Write(buf.Bytes())
require.NoError(t, err)
err = gz.Close()
require.NoError(t, err)
dockerfile = []byte(`
FROM scratch
ADD t.tar.gz /
`)
dir, err = tmpdir(
fstest.CreateFile("Dockerfile", dockerfile, 0600),
fstest.CreateFile("t.tar.gz", buf2.Bytes(), 0600),
)
require.NoError(t, err)
defer os.RemoveAll(dir)
args, trace = dfCmdArgs(dir, dir)
defer os.RemoveAll(trace)
destDir, err = tmpdir()
require.NoError(t, err)
defer os.RemoveAll(destDir)
cmd = sb.Cmd(args + fmt.Sprintf(" --exporter=local --exporter-opt output=%s", destDir))
require.NoError(t, cmd.Run())
dt, err = ioutil.ReadFile(filepath.Join(destDir, "foo"))
require.NoError(t, err)
require.Equal(t, expectedContent, dt)
// COPY doesn't extract
dockerfile = []byte(`
FROM scratch
COPY t.tar.gz /
`)
dir, err = tmpdir(
fstest.CreateFile("Dockerfile", dockerfile, 0600),
fstest.CreateFile("t.tar.gz", buf2.Bytes(), 0600),
)
require.NoError(t, err)
defer os.RemoveAll(dir)
args, trace = dfCmdArgs(dir, dir)
defer os.RemoveAll(trace)
destDir, err = tmpdir()
require.NoError(t, err)
defer os.RemoveAll(destDir)
cmd = sb.Cmd(args + fmt.Sprintf(" --exporter=local --exporter-opt output=%s", destDir))
require.NoError(t, cmd.Run())
dt, err = ioutil.ReadFile(filepath.Join(destDir, "t.tar.gz"))
require.NoError(t, err)
require.Equal(t, buf2.Bytes(), dt)
// ADD from URL doesn't extract
resp := httpserver.Response{
Etag: identity.NewID(),
Content: buf2.Bytes(),
}
server := httpserver.NewTestServer(map[string]httpserver.Response{
"/t.tar.gz": resp,
})
defer server.Close()
dockerfile = []byte(fmt.Sprintf(`
FROM scratch
ADD %s /
`, server.URL+"/t.tar.gz"))
dir, err = tmpdir(
fstest.CreateFile("Dockerfile", dockerfile, 0600),
)
require.NoError(t, err)
defer os.RemoveAll(dir)
args, trace = dfCmdArgs(dir, dir)
defer os.RemoveAll(trace)
destDir, err = tmpdir()
require.NoError(t, err)
defer os.RemoveAll(destDir)
cmd = sb.Cmd(args + fmt.Sprintf(" --exporter=local --exporter-opt output=%s", destDir))
require.NoError(t, cmd.Run())
dt, err = ioutil.ReadFile(filepath.Join(destDir, "t.tar.gz"))
require.NoError(t, err)
require.Equal(t, buf2.Bytes(), dt)
}
func testDockerfileScratchConfig(t *testing.T, sb integration.Sandbox) {
var cdAddress string
if cd, ok := sb.(interface {
ContainerdAddress() string
}); !ok {
t.Skip("only for containerd worker")
} else {
cdAddress = cd.ContainerdAddress()
}
t.Parallel()
dockerfile := []byte(`
FROM scratch
ENV foo=bar
`)
dir, err := tmpdir(
fstest.CreateFile("Dockerfile", dockerfile, 0600),
)
require.NoError(t, err)
defer os.RemoveAll(dir)
args, trace := dfCmdArgs(dir, dir)
defer os.RemoveAll(trace)
target := "example.com/moby/dockerfilescratch:test"
cmd := sb.Cmd(args + " --exporter=image --exporter-opt=name=" + target)
err = cmd.Run()
require.NoError(t, err)
client, err := containerd.New(cdAddress)
require.NoError(t, err)
defer client.Close()
ctx := namespaces.WithNamespace(context.Background(), "buildkit")
img, err := client.ImageService().Get(ctx, target)
require.NoError(t, err)
desc, err := img.Config(ctx, client.ContentStore(), platforms.Default())
require.NoError(t, err)
dt, err := content.ReadBlob(ctx, client.ContentStore(), desc.Digest)
require.NoError(t, err)
var ociimg ocispec.Image
err = json.Unmarshal(dt, &ociimg)
require.NoError(t, err)
require.NotEqual(t, "", ociimg.OS)
require.NotEqual(t, "", ociimg.Architecture)
require.NotEqual(t, "", ociimg.Config.WorkingDir)
require.Equal(t, "layers", ociimg.RootFS.Type)
require.Equal(t, 0, len(ociimg.RootFS.DiffIDs))
require.Equal(t, 1, len(ociimg.History))
require.Contains(t, ociimg.History[0].CreatedBy, "ENV foo=bar")
require.Equal(t, true, ociimg.History[0].EmptyLayer)
require.Contains(t, ociimg.Config.Env, "foo=bar")
require.Condition(t, func() bool {
for _, env := range ociimg.Config.Env {
if strings.HasPrefix(env, "PATH=") {
return true
}
}
return false
})
}
func testExposeExpansion(t *testing.T, sb integration.Sandbox) {
t.Parallel()
dockerfile := []byte(`
FROM scratch
ARG PORTS="3000 4000/udp"
EXPOSE $PORTS
EXPOSE 5000
`)
dir, err := tmpdir(
fstest.CreateFile("Dockerfile", dockerfile, 0600),
)
require.NoError(t, err)
defer os.RemoveAll(dir)
c, err := client.New(sb.Address())
require.NoError(t, err)
defer c.Close()
target := "example.com/moby/dockerfileexpansion:test"
err = c.Solve(context.TODO(), nil, client.SolveOpt{
Frontend: "dockerfile.v0",
Exporter: client.ExporterImage,
ExporterAttrs: map[string]string{
"name": target,
},
LocalDirs: map[string]string{
builder.LocalNameDockerfile: dir,
builder.LocalNameContext: dir,
},
}, nil)
require.NoError(t, err)
var cdAddress string
if cd, ok := sb.(interface {
ContainerdAddress() string
}); !ok {
return
} else {
cdAddress = cd.ContainerdAddress()
}
client, err := containerd.New(cdAddress)
require.NoError(t, err)
defer client.Close()
ctx := namespaces.WithNamespace(context.Background(), "buildkit")
img, err := client.ImageService().Get(ctx, target)
require.NoError(t, err)
desc, err := img.Config(ctx, client.ContentStore(), platforms.Default())
require.NoError(t, err)
dt, err := content.ReadBlob(ctx, client.ContentStore(), desc.Digest)
require.NoError(t, err)
var ociimg ocispec.Image
err = json.Unmarshal(dt, &ociimg)
require.NoError(t, err)
require.Equal(t, 3, len(ociimg.Config.ExposedPorts))
var ports []string
for p := range ociimg.Config.ExposedPorts {
ports = append(ports, p)
}
sort.Strings(ports)
require.Equal(t, "3000/tcp", ports[0])
require.Equal(t, "4000/udp", ports[1])
require.Equal(t, "5000/tcp", ports[2])
}
func testDockerignore(t *testing.T, sb integration.Sandbox) {
t.Parallel()
dockerfile := []byte(`
FROM scratch
COPY . .
`)
dockerignore := []byte(`
ba*
Dockerfile
!bay
.dockerignore
`)
dir, err := tmpdir(
fstest.CreateFile("Dockerfile", dockerfile, 0600),
fstest.CreateFile("foo", []byte(`foo-contents`), 0600),
fstest.CreateFile("bar", []byte(`bar-contents`), 0600),
fstest.CreateFile("baz", []byte(`baz-contents`), 0600),
fstest.CreateFile("bay", []byte(`bay-contents`), 0600),
fstest.CreateFile(".dockerignore", dockerignore, 0600),
)
require.NoError(t, err)
defer os.RemoveAll(dir)
c, err := client.New(sb.Address())
require.NoError(t, err)
defer c.Close()
destDir, err := ioutil.TempDir("", "buildkit")
require.NoError(t, err)
defer os.RemoveAll(destDir)
err = c.Solve(context.TODO(), nil, client.SolveOpt{
Frontend: "dockerfile.v0",
Exporter: client.ExporterLocal,
ExporterAttrs: map[string]string{
"output": destDir,
},
LocalDirs: map[string]string{
builder.LocalNameDockerfile: dir,
builder.LocalNameContext: dir,
},
}, nil)
require.NoError(t, err)
dt, err := ioutil.ReadFile(filepath.Join(destDir, "foo"))
require.NoError(t, err)
require.Equal(t, "foo-contents", string(dt))
_, err = os.Stat(filepath.Join(destDir, ".dockerignore"))
require.Error(t, err)
require.True(t, os.IsNotExist(err))
_, err = os.Stat(filepath.Join(destDir, "Dockerfile"))
require.Error(t, err)
require.True(t, os.IsNotExist(err))
_, err = os.Stat(filepath.Join(destDir, "bar"))
require.Error(t, err)
require.True(t, os.IsNotExist(err))
_, err = os.Stat(filepath.Join(destDir, "baz"))
require.Error(t, err)
require.True(t, os.IsNotExist(err))
dt, err = ioutil.ReadFile(filepath.Join(destDir, "bay"))
require.NoError(t, err)
require.Equal(t, "bay-contents", string(dt))
}
func testExportedHistory(t *testing.T, sb integration.Sandbox) {
t.Parallel()
// using multi-stage to test that history is scoped to one stage
dockerfile := []byte(`
FROM busybox AS base
ENV foo=bar
COPY foo /foo2
FROM busybox
COPY --from=base foo2 foo3
WORKDIR /
RUN echo bar > foo4
RUN ["ls"]
`)
dir, err := tmpdir(
fstest.CreateFile("Dockerfile", dockerfile, 0600),
fstest.CreateFile("foo", []byte("contents0"), 0600),
)
require.NoError(t, err)
defer os.RemoveAll(dir)
args, trace := dfCmdArgs(dir, dir)
defer os.RemoveAll(trace)
target := "example.com/moby/dockerfilescratch:test"
cmd := sb.Cmd(args + " --exporter=image --exporter-opt=name=" + target)
require.NoError(t, cmd.Run())
// TODO: expose this test to OCI worker
var cdAddress string
if cd, ok := sb.(interface {
ContainerdAddress() string
}); !ok {
t.Skip("only for containerd worker")
} else {
cdAddress = cd.ContainerdAddress()
}
client, err := containerd.New(cdAddress)
require.NoError(t, err)
defer client.Close()
ctx := namespaces.WithNamespace(context.Background(), "buildkit")
img, err := client.ImageService().Get(ctx, target)
require.NoError(t, err)
desc, err := img.Config(ctx, client.ContentStore(), platforms.Default())
require.NoError(t, err)
dt, err := content.ReadBlob(ctx, client.ContentStore(), desc.Digest)
require.NoError(t, err)
var ociimg ocispec.Image
err = json.Unmarshal(dt, &ociimg)
require.NoError(t, err)
require.Equal(t, "layers", ociimg.RootFS.Type)
// this depends on busybox. should be ok after freezing images
require.Equal(t, 3, len(ociimg.RootFS.DiffIDs))
require.Equal(t, 6, len(ociimg.History))
require.Contains(t, ociimg.History[2].CreatedBy, "COPY foo2 foo3")
require.Equal(t, false, ociimg.History[2].EmptyLayer)
require.Contains(t, ociimg.History[3].CreatedBy, "WORKDIR /")
require.Equal(t, true, ociimg.History[3].EmptyLayer)
require.Contains(t, ociimg.History[4].CreatedBy, "echo bar > foo4")
require.Equal(t, false, ociimg.History[4].EmptyLayer)
require.Contains(t, ociimg.History[5].CreatedBy, "RUN ls")
require.Equal(t, true, ociimg.History[5].EmptyLayer)
}
func testUser(t *testing.T, sb integration.Sandbox) {
t.Parallel()
dockerfile := []byte(`
FROM busybox AS base
RUN mkdir -m 0777 /out
RUN id -un > /out/rootuser
USER daemon
RUN id -un > /out/daemonuser
FROM scratch
COPY --from=base /out /
USER nobody
`)
dir, err := tmpdir(
fstest.CreateFile("Dockerfile", dockerfile, 0600),
)
require.NoError(t, err)
defer os.RemoveAll(dir)
c, err := client.New(sb.Address())
require.NoError(t, err)
defer c.Close()
destDir, err := ioutil.TempDir("", "buildkit")
require.NoError(t, err)
defer os.RemoveAll(destDir)
err = c.Solve(context.TODO(), nil, client.SolveOpt{
Frontend: "dockerfile.v0",
Exporter: client.ExporterLocal,
ExporterAttrs: map[string]string{
"output": destDir,
},
LocalDirs: map[string]string{
builder.LocalNameDockerfile: dir,
builder.LocalNameContext: dir,
},
}, nil)
require.NoError(t, err)
dt, err := ioutil.ReadFile(filepath.Join(destDir, "rootuser"))
require.NoError(t, err)
require.Equal(t, string(dt), "root\n")
dt, err = ioutil.ReadFile(filepath.Join(destDir, "daemonuser"))
require.NoError(t, err)
require.Equal(t, string(dt), "daemon\n")
// test user in exported
target := "example.com/moby/dockerfileuser:test"
err = c.Solve(context.TODO(), nil, client.SolveOpt{
Frontend: "dockerfile.v0",
Exporter: client.ExporterImage,
ExporterAttrs: map[string]string{
"name": target,
},
LocalDirs: map[string]string{
builder.LocalNameDockerfile: dir,
builder.LocalNameContext: dir,
},
}, nil)
require.NoError(t, err)
var cdAddress string
if cd, ok := sb.(interface {
ContainerdAddress() string
}); !ok {
return
} else {
cdAddress = cd.ContainerdAddress()
}
client, err := containerd.New(cdAddress)
require.NoError(t, err)
defer client.Close()
ctx := namespaces.WithNamespace(context.Background(), "buildkit")
img, err := client.ImageService().Get(ctx, target)
require.NoError(t, err)
desc, err := img.Config(ctx, client.ContentStore(), platforms.Default())
require.NoError(t, err)
dt, err = content.ReadBlob(ctx, client.ContentStore(), desc.Digest)
require.NoError(t, err)
var ociimg ocispec.Image
err = json.Unmarshal(dt, &ociimg)
require.NoError(t, err)
require.Equal(t, "nobody", ociimg.Config.User)
}
func testCopyChown(t *testing.T, sb integration.Sandbox) {
t.Parallel()
dockerfile := []byte(`
FROM busybox AS base
RUN mkdir -m 0777 /out
COPY --chown=daemon foo /
COPY --chown=1000:nogroup bar /baz
RUN stat -c "%U %G" /foo > /out/fooowner
RUN stat -c "%u %G" /baz/sub > /out/subowner
FROM scratch
COPY --from=base /out /
`)
dir, err := tmpdir(
fstest.CreateFile("Dockerfile", dockerfile, 0600),
fstest.CreateFile("foo", []byte(`foo-contents`), 0600),
fstest.CreateDir("bar", 0700),
fstest.CreateFile("bar/sub", nil, 0600),
)
require.NoError(t, err)
defer os.RemoveAll(dir)
c, err := client.New(sb.Address())
require.NoError(t, err)
defer c.Close()
destDir, err := ioutil.TempDir("", "buildkit")
require.NoError(t, err)
defer os.RemoveAll(destDir)
err = c.Solve(context.TODO(), nil, client.SolveOpt{
Frontend: "dockerfile.v0",
Exporter: client.ExporterLocal,
ExporterAttrs: map[string]string{
"output": destDir,
},
LocalDirs: map[string]string{
builder.LocalNameDockerfile: dir,
builder.LocalNameContext: dir,
},
}, nil)
require.NoError(t, err)
dt, err := ioutil.ReadFile(filepath.Join(destDir, "fooowner"))
require.NoError(t, err)
require.Equal(t, string(dt), "daemon daemon\n")
dt, err = ioutil.ReadFile(filepath.Join(destDir, "subowner"))
require.NoError(t, err)
require.Equal(t, string(dt), "1000 nogroup\n")
}
func testCopyWildcards(t *testing.T, sb integration.Sandbox) {
t.Parallel()
dockerfile := []byte(`
FROM scratch AS base
COPY *.go /gofiles/
COPY f*.go foo2.go
COPY sub/* /subdest/
COPY sub/*/dir2/foo /subdest2/
COPY sub/*/dir2/foo /subdest3/bar
COPY . all/
COPY sub/dir1/ subdest4
COPY sub/dir1/. subdest5
COPY sub/dir1 subdest6
`)
dir, err := tmpdir(
fstest.CreateFile("Dockerfile", dockerfile, 0600),
fstest.CreateFile("foo.go", []byte(`foo-contents`), 0600),
fstest.CreateFile("bar.go", []byte(`bar-contents`), 0600),
fstest.CreateDir("sub", 0700),
fstest.CreateDir("sub/dir1", 0700),
fstest.CreateDir("sub/dir1/dir2", 0700),
fstest.CreateFile("sub/dir1/dir2/foo", []byte(`foo-contents`), 0600),
)
require.NoError(t, err)
defer os.RemoveAll(dir)
c, err := client.New(sb.Address())
require.NoError(t, err)
defer c.Close()
destDir, err := ioutil.TempDir("", "buildkit")
require.NoError(t, err)
defer os.RemoveAll(destDir)
err = c.Solve(context.TODO(), nil, client.SolveOpt{
Frontend: "dockerfile.v0",
Exporter: client.ExporterLocal,
ExporterAttrs: map[string]string{
"output": destDir,
},
LocalDirs: map[string]string{
builder.LocalNameDockerfile: dir,
builder.LocalNameContext: dir,
},
}, nil)
require.NoError(t, err)
dt, err := ioutil.ReadFile(filepath.Join(destDir, "gofiles/foo.go"))
require.NoError(t, err)
require.Equal(t, string(dt), "foo-contents")
dt, err = ioutil.ReadFile(filepath.Join(destDir, "gofiles/bar.go"))
require.NoError(t, err)
require.Equal(t, string(dt), "bar-contents")
dt, err = ioutil.ReadFile(filepath.Join(destDir, "foo2.go"))
require.NoError(t, err)
require.Equal(t, string(dt), "foo-contents")
dt, err = ioutil.ReadFile(filepath.Join(destDir, "subdest/dir1/dir2/foo"))
require.NoError(t, err)
require.Equal(t, string(dt), "foo-contents")
dt, err = ioutil.ReadFile(filepath.Join(destDir, "subdest2/foo"))
require.NoError(t, err)
require.Equal(t, string(dt), "foo-contents")
dt, err = ioutil.ReadFile(filepath.Join(destDir, "subdest3/bar"))
require.NoError(t, err)
require.Equal(t, string(dt), "foo-contents")
dt, err = ioutil.ReadFile(filepath.Join(destDir, "all/foo.go"))
require.NoError(t, err)
require.Equal(t, string(dt), "foo-contents")
dt, err = ioutil.ReadFile(filepath.Join(destDir, "subdest4/dir2/foo"))
require.NoError(t, err)
require.Equal(t, string(dt), "foo-contents")
dt, err = ioutil.ReadFile(filepath.Join(destDir, "subdest5/dir2/foo"))
require.NoError(t, err)
require.Equal(t, string(dt), "foo-contents")
dt, err = ioutil.ReadFile(filepath.Join(destDir, "subdest6/dir2/foo"))
require.NoError(t, err)
require.Equal(t, string(dt), "foo-contents")
}
func testDockerfileFromGit(t *testing.T, sb integration.Sandbox) {
t.Parallel()
gitDir, err := ioutil.TempDir("", "buildkit")
require.NoError(t, err)
defer os.RemoveAll(gitDir)
dockerfile := `
FROM busybox AS build
RUN echo -n fromgit > foo
FROM scratch
COPY --from=build foo bar
`
err = ioutil.WriteFile(filepath.Join(gitDir, "Dockerfile"), []byte(dockerfile), 0600)
require.NoError(t, err)
err = runShell(gitDir,
"git init",
"git config --local user.email test",
"git config --local user.name test",
"git add Dockerfile",
"git commit -m initial",
"git branch first",
)
require.NoError(t, err)
dockerfile += `
COPY --from=build foo bar2
`
err = ioutil.WriteFile(filepath.Join(gitDir, "Dockerfile"), []byte(dockerfile), 0600)
require.NoError(t, err)
err = runShell(gitDir,
"git add Dockerfile",
"git commit -m second",
"git update-server-info",
)
require.NoError(t, err)
server := httptest.NewServer(http.FileServer(http.Dir(filepath.Join(gitDir, ".git"))))
defer server.Close()
destDir, err := ioutil.TempDir("", "buildkit")
require.NoError(t, err)
defer os.RemoveAll(destDir)
c, err := client.New(sb.Address())
require.NoError(t, err)
defer c.Close()
err = c.Solve(context.TODO(), nil, client.SolveOpt{
Frontend: "dockerfile.v0",
FrontendAttrs: map[string]string{
"context": "git://" + server.URL + "/#first",
},
Exporter: client.ExporterLocal,
ExporterAttrs: map[string]string{
"output": destDir,
},
}, nil)
require.NoError(t, err)
dt, err := ioutil.ReadFile(filepath.Join(destDir, "bar"))
require.NoError(t, err)
require.Equal(t, "fromgit", string(dt))
_, err = os.Stat(filepath.Join(destDir, "bar2"))
require.Error(t, err)
require.True(t, os.IsNotExist(err))
// second request from master branch contains both files
destDir, err = ioutil.TempDir("", "buildkit")
require.NoError(t, err)
defer os.RemoveAll(destDir)
err = c.Solve(context.TODO(), nil, client.SolveOpt{
Frontend: "dockerfile.v0",
FrontendAttrs: map[string]string{
"context": "git://" + server.URL + "/",
},
Exporter: client.ExporterLocal,
ExporterAttrs: map[string]string{
"output": destDir,
},
}, nil)
require.NoError(t, err)
dt, err = ioutil.ReadFile(filepath.Join(destDir, "bar"))
require.NoError(t, err)
require.Equal(t, "fromgit", string(dt))
dt, err = ioutil.ReadFile(filepath.Join(destDir, "bar2"))
require.NoError(t, err)
require.Equal(t, "fromgit", string(dt))
}
func tmpdir(appliers ...fstest.Applier) (string, error) {
tmpdir, err := ioutil.TempDir("", "buildkit-dockerfile")
if err != nil {
return "", err
}
if err := fstest.Apply(appliers...).Apply(tmpdir); err != nil {
return "", err
}
return tmpdir, nil
}
func dfCmdArgs(ctx, dockerfile string) (string, string) {
traceFile := filepath.Join(os.TempDir(), "trace"+identity.NewID())
return fmt.Sprintf("build --no-progress --frontend dockerfile.v0 --local context=%s --local dockerfile=%s --trace=%s", ctx, dockerfile, traceFile), traceFile
}
func runShell(dir string, cmds ...string) error {
for _, args := range cmds {
cmd := exec.Command("sh", "-c", args)
cmd.Dir = dir
if err := cmd.Run(); err != nil {
return errors.Wrapf(err, "error running %v", args)
}
}
return nil
}