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Copy pathgobuild_test.go
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gobuild_test.go
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// Copyright 2018 ko Build Authors All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package build
import (
"archive/tar"
"context"
"errors"
"fmt"
"io"
"os"
"path"
"path/filepath"
"runtime"
"strconv"
"strings"
"testing"
"time"
"github.com/google/go-cmp/cmp"
"github.com/google/go-cmp/cmp/cmpopts"
"github.com/google/go-containerregistry/pkg/name"
v1 "github.com/google/go-containerregistry/pkg/v1"
"github.com/google/go-containerregistry/pkg/v1/empty"
"github.com/google/go-containerregistry/pkg/v1/mutate"
"github.com/google/go-containerregistry/pkg/v1/random"
"github.com/google/go-containerregistry/pkg/v1/types"
"github.com/google/ko/pkg/internal/gittesting"
specsv1 "github.com/opencontainers/image-spec/specs-go/v1"
"github.com/sigstore/cosign/v2/pkg/oci"
"github.com/stretchr/testify/require"
)
func repoRootDir() (string, error) {
_, filename, _, ok := runtime.Caller(0)
if !ok {
return "", fmt.Errorf("could not get current filename")
}
basepath := filepath.Dir(filename)
repoDir := filepath.Join(basepath, "..", "..")
return filepath.Rel(basepath, repoDir)
}
func TestGoBuildQualifyImport(t *testing.T) {
base, err := random.Image(1024, 1)
if err != nil {
t.Fatalf("random.Image() = %v", err)
}
repoDir, err := repoRootDir()
if err != nil {
t.Fatalf("could not get Git repository root directory")
}
tests := []struct {
description string
rawImportpath string
dir string
qualifiedImportpath string
expectError bool
}{
{
description: "strict qualified import path",
rawImportpath: "ko://github.com/google/ko",
dir: "",
qualifiedImportpath: "ko://github.com/google/ko",
expectError: false,
},
{
description: "strict qualified import path in subdirectory of go.mod",
rawImportpath: "ko://github.com/google/ko/test",
dir: "",
qualifiedImportpath: "ko://github.com/google/ko/test",
expectError: false,
},
{
description: "non-strict qualified import path",
rawImportpath: "github.com/google/ko",
dir: "",
qualifiedImportpath: "ko://github.com/google/ko",
expectError: false,
},
{
description: "non-strict local import path in repository root directory",
rawImportpath: "./test",
dir: repoDir,
qualifiedImportpath: "ko://github.com/google/ko/test",
expectError: false,
},
{
description: "non-strict local import path in subdirectory",
rawImportpath: ".",
dir: filepath.Join(repoDir, "test"),
qualifiedImportpath: "ko://github.com/google/ko/test",
expectError: false,
},
{
description: "non-existent non-strict local import path",
rawImportpath: "./does-not-exist",
dir: "/",
qualifiedImportpath: "should return error",
expectError: true,
},
}
for _, test := range tests {
t.Run(test.description, func(t *testing.T) {
ng, err := NewGo(context.Background(), test.dir, WithBaseImages(func(context.Context, string) (name.Reference, Result, error) { return nil, base, nil }))
if err != nil {
t.Fatalf("NewGo() = %v", err)
}
gotImportpath, err := ng.QualifyImport(test.rawImportpath)
if err != nil && test.expectError {
return
}
if err != nil && !test.expectError {
t.Errorf("QualifyImport(dir=%q)(%q) was error (%v), want nil error", test.dir, test.rawImportpath, err)
}
if err == nil && test.expectError {
t.Errorf("QualifyImport(dir=%q)(%q) was nil error, want non-nil error", test.dir, test.rawImportpath)
}
if gotImportpath != test.qualifiedImportpath {
t.Errorf("QualifyImport(dir=%q)(%q) = (%q, nil), want (%q, nil)", test.dir, test.rawImportpath, gotImportpath, test.qualifiedImportpath)
}
})
}
}
var baseRef = name.MustParseReference("all.your/base")
var scratchBaseRef = name.MustParseReference("scratch")
func TestGoBuildIsSupportedRef(t *testing.T) {
base, err := random.Image(1024, 3)
if err != nil {
t.Fatalf("random.Image() = %v", err)
}
ng, err := NewGo(context.Background(), "", WithBaseImages(func(context.Context, string) (name.Reference, Result, error) { return nil, base, nil }))
if err != nil {
t.Fatalf("NewGo() = %v", err)
}
// Supported import paths.
for _, importpath := range []string{
"ko://github.com/google/ko", // ko can build itself.
} {
t.Run(importpath, func(t *testing.T) {
if err := ng.IsSupportedReference(importpath); err != nil {
t.Errorf("IsSupportedReference(%q) = (%v), want nil", importpath, err)
}
})
}
// Unsupported import paths.
for _, importpath := range []string{
"ko://github.com/google/ko/pkg/build", // not a command.
"ko://github.com/google/ko/pkg/nonexistent", // does not exist.
} {
t.Run(importpath, func(t *testing.T) {
if err := ng.IsSupportedReference(importpath); err == nil {
t.Errorf("IsSupportedReference(%v) = nil, want error", importpath)
}
})
}
}
func TestGoBuildIsSupportedRefWithModules(t *testing.T) {
base, err := random.Image(1024, 3)
if err != nil {
t.Fatalf("random.Image() = %v", err)
}
opts := []Option{
WithBaseImages(func(context.Context, string) (name.Reference, Result, error) { return baseRef, base, nil }),
}
ng, err := NewGo(context.Background(), "", opts...)
if err != nil {
t.Fatalf("NewGo() = %v", err)
}
// Supported import paths.
for _, importpath := range []string{
"ko://github.com/google/ko/test", // ko can build the test package.
"ko://github.com/go-training/helloworld", // ko can build commands in dependent modules
} {
t.Run(importpath, func(t *testing.T) {
if err := ng.IsSupportedReference(importpath); err != nil {
t.Errorf("IsSupportedReference(%q) = (%v), want nil", err, importpath)
}
})
}
// Unsupported import paths.
for _, importpath := range []string{
"ko://github.com/google/ko/pkg/build", // not a command.
"ko://github.com/google/ko/pkg/nonexistent", // does not exist.
"ko://github.com/google/go-github", // not in this module.
} {
t.Run(importpath, func(t *testing.T) {
if err := ng.IsSupportedReference(importpath); err == nil {
t.Errorf("IsSupportedReference(%v) = nil, want error", importpath)
}
})
}
}
func TestBuildEnv(t *testing.T) {
tests := []struct {
description string
platform v1.Platform
osEnv []string
buildEnv []string
expectedEnvs map[string]string
}{{
description: "defaults",
platform: v1.Platform{
OS: "linux",
Architecture: "amd64",
},
expectedEnvs: map[string]string{
"GOOS": "linux",
"GOARCH": "amd64",
"CGO_ENABLED": "0",
},
}, {
description: "build override a system value",
osEnv: []string{"CGO_ENABLED=0"},
buildEnv: []string{"CGO_ENABLED=1"},
expectedEnvs: map[string]string{
"CGO_ENABLED": "1",
},
}, {
description: "override an envvar and add an envvar",
osEnv: []string{"CGO_ENABLED=0"},
buildEnv: []string{"CGO_ENABLED=1", "GOPRIVATE=git.internal.example.com,source.developers.google.com"},
expectedEnvs: map[string]string{
"CGO_ENABLED": "1",
"GOPRIVATE": "git.internal.example.com,source.developers.google.com",
},
}, {
description: "arm variant",
platform: v1.Platform{
Architecture: "arm",
Variant: "v7",
},
expectedEnvs: map[string]string{
"GOARCH": "arm",
"GOARM": "7",
},
}, {
// GOARM is ignored for arm64.
description: "arm64 variant",
platform: v1.Platform{
Architecture: "arm64",
Variant: "v8",
},
expectedEnvs: map[string]string{
"GOARCH": "arm64",
"GOARM": "",
},
}, {
description: "amd64 variant",
platform: v1.Platform{
Architecture: "amd64",
Variant: "v3",
},
expectedEnvs: map[string]string{
"GOARCH": "amd64",
"GOAMD64": "v3",
},
}}
for _, test := range tests {
t.Run(test.description, func(t *testing.T) {
env, err := buildEnv(test.platform, test.osEnv, test.buildEnv)
if err != nil {
t.Fatalf("unexpected error running buildEnv(): %v", err)
}
envs := map[string]string{}
for _, e := range env {
split := strings.SplitN(e, "=", 2)
envs[split[0]] = split[1]
}
for key, val := range test.expectedEnvs {
if envs[key] != val {
t.Errorf("buildEnv(): expected %s=%s, got %s=%s", key, val, key, envs[key])
}
}
})
}
}
func TestGoEnv(t *testing.T) {
goVars, err := goenv(context.TODO())
require.NoError(t, err)
// Just check some basic values.
require.Equal(t, runtime.GOOS, goVars["GOOS"])
require.Equal(t, runtime.GOARCH, goVars["GOARCH"])
}
func TestCreateTemplateData(t *testing.T) {
t.Run("empty creation time", func(t *testing.T) {
params, err := createTemplateData(context.TODO(), buildContext{dir: t.TempDir()})
require.NoError(t, err)
// Make sure the date was set to time.Now().
actualDateStr := params["Date"].(string)
actualDate, err := time.Parse(time.RFC3339, actualDateStr)
require.NoError(t, err)
if time.Since(actualDate) > time.Minute {
t.Fatalf("expected date to be now, but was %v", actualDate)
}
// Check the timestamp.
actualTimestampSec := params["Timestamp"].(int64)
actualTimestamp := time.Unix(actualTimestampSec, 0).UTC()
expectedTimestamp := actualDate.Truncate(time.Second).UTC()
require.Equal(t, expectedTimestamp, actualTimestamp)
})
t.Run("creation time", func(t *testing.T) {
// Create a reference time for use as a creation time.
expectedTime, err := time.Parse(time.RFC3339, "2012-11-01T22:08:00Z")
require.NoError(t, err)
params, err := createTemplateData(context.TODO(), buildContext{
creationTime: v1.Time{Time: expectedTime},
dir: t.TempDir(),
})
require.NoError(t, err)
// Check the date.
actualDateStr := params["Date"].(string)
actualDate, err := time.Parse(time.RFC3339, actualDateStr)
require.NoError(t, err)
require.Equal(t, expectedTime, actualDate)
// Check the timestamp.
actualTimestampSec := params["Timestamp"].(int64)
actualTimestamp := time.Unix(actualTimestampSec, 0).UTC()
require.Equal(t, expectedTime, actualTimestamp)
})
t.Run("no git available", func(t *testing.T) {
dir := t.TempDir()
params, err := createTemplateData(context.TODO(), buildContext{dir: dir})
require.NoError(t, err)
gitParams := params["Git"].(map[string]interface{})
require.Equal(t, "", gitParams["Branch"])
require.Equal(t, "", gitParams["Tag"])
require.Equal(t, "", gitParams["ShortCommit"])
require.Equal(t, "", gitParams["FullCommit"])
require.Equal(t, "clean", gitParams["TreeState"])
})
t.Run("git", func(t *testing.T) {
// Create a fake git structure under the test temp dir.
const fakeGitURL = "[email protected]:foo/bar.git"
dir := t.TempDir()
gittesting.GitInit(t, dir)
gittesting.GitRemoteAdd(t, dir, fakeGitURL)
gittesting.GitCommit(t, dir, "commit1")
gittesting.GitTag(t, dir, "v0.0.1")
params, err := createTemplateData(context.TODO(), buildContext{dir: dir})
require.NoError(t, err)
gitParams := params["Git"].(map[string]interface{})
require.Equal(t, "main", gitParams["Branch"])
require.Equal(t, "v0.0.1", gitParams["Tag"])
require.Equal(t, "clean", gitParams["TreeState"])
})
t.Run("env", func(t *testing.T) {
params, err := createTemplateData(context.TODO(), buildContext{
dir: t.TempDir(),
env: []string{"FOO=bar"},
})
require.NoError(t, err)
vars := params["Env"].(map[string]string)
require.Equal(t, "bar", vars["FOO"])
})
t.Run("bad env", func(t *testing.T) {
_, err := createTemplateData(context.TODO(), buildContext{
dir: t.TempDir(),
env: []string{"bad var"},
})
require.Error(t, err)
})
t.Run("default go env", func(t *testing.T) {
params, err := createTemplateData(context.TODO(), buildContext{dir: t.TempDir()})
require.NoError(t, err)
vars := params["GoEnv"].(map[string]string)
require.Equal(t, runtime.GOOS, vars["GOOS"])
require.Equal(t, runtime.GOARCH, vars["GOARCH"])
})
t.Run("env overrides go env", func(t *testing.T) {
params, err := createTemplateData(context.TODO(), buildContext{
dir: t.TempDir(),
env: []string{
"GOOS=testgoos",
"GOARCH=testgoarch",
},
})
require.NoError(t, err)
vars := params["GoEnv"].(map[string]string)
require.Equal(t, "testgoos", vars["GOOS"])
require.Equal(t, "testgoarch", vars["GOARCH"])
})
}
func TestBuildConfig(t *testing.T) {
tests := []struct {
description string
options []Option
importpath string
expectConfig Config
}{
{
description: "minimal options",
options: []Option{
WithBaseImages(nilGetBase),
},
},
{
description: "trimpath flag",
options: []Option{
WithBaseImages(nilGetBase),
WithTrimpath(true),
},
expectConfig: Config{
Flags: FlagArray{"-trimpath"},
},
},
{
description: "no trimpath flag",
options: []Option{
WithBaseImages(nilGetBase),
WithTrimpath(false),
},
},
{
description: "build config and trimpath",
options: []Option{
WithBaseImages(nilGetBase),
WithConfig(map[string]Config{
"example.com/foo": {
Flags: FlagArray{"-v"},
},
}),
WithTrimpath(true),
},
importpath: "example.com/foo",
expectConfig: Config{
Flags: FlagArray{"-v", "-trimpath"},
},
},
{
description: "no trimpath overridden by build config flag",
options: []Option{
WithBaseImages(nilGetBase),
WithConfig(map[string]Config{
"example.com/bar": {
Flags: FlagArray{"-trimpath"},
},
}),
WithTrimpath(false),
},
importpath: "example.com/bar",
expectConfig: Config{
Flags: FlagArray{"-trimpath"},
},
},
{
description: "disable optimizations",
options: []Option{
WithBaseImages(nilGetBase),
WithDisabledOptimizations(),
},
expectConfig: Config{
Flags: FlagArray{"-gcflags", "all=-N -l"},
},
},
}
for _, test := range tests {
t.Run(test.description, func(t *testing.T) {
i, err := NewGo(context.Background(), "", test.options...)
if err != nil {
t.Fatalf("NewGo(): unexpected error: %+v", err)
}
gb, ok := i.(*gobuild)
if !ok {
t.Fatal("NewGo() did not return *gobuild{} as expected")
}
config := gb.configForImportPath(test.importpath)
if diff := cmp.Diff(test.expectConfig, config, cmpopts.EquateEmpty(),
cmpopts.SortSlices(func(x, y string) bool { return x < y })); diff != "" {
t.Errorf("%T differ (-got, +want): %s", test.expectConfig, diff)
}
})
}
}
func nilGetBase(context.Context, string) (name.Reference, Result, error) {
return nil, nil, nil
}
const wantSBOM = "This is our fake SBOM"
// A helper method we use to substitute for the default "build" method.
func fauxSBOM(context.Context, string, string, string, oci.SignedEntity, string) ([]byte, types.MediaType, error) {
return []byte(wantSBOM), "application/vnd.garbage", nil
}
// A helper method we use to substitute for the default "build" method.
func writeTempFile(_ context.Context, buildCtx buildContext) (string, error) {
tmpDir, err := os.MkdirTemp("", "ko")
if err != nil {
return "", err
}
file, err := os.CreateTemp(tmpDir, "out")
if err != nil {
return "", err
}
defer file.Close()
if _, err := file.WriteString(filepath.ToSlash(buildCtx.ip)); err != nil {
return "", err
}
return file.Name(), nil
}
func TestGoBuildNoKoData(t *testing.T) {
baseLayers := int64(3)
base, err := random.Image(1024, baseLayers)
if err != nil {
t.Fatalf("random.Image() = %v", err)
}
importpath := "github.com/google/ko"
creationTime := v1.Time{Time: time.Unix(5000, 0)}
ng, err := NewGo(
context.Background(),
"",
WithCreationTime(creationTime),
WithBaseImages(func(context.Context, string) (name.Reference, Result, error) { return baseRef, base, nil }),
withBuilder(writeTempFile),
withSBOMber(fauxSBOM),
WithPlatforms("all"),
)
if err != nil {
t.Fatalf("NewGo() = %v", err)
}
result, err := ng.Build(context.Background(), StrictScheme+importpath)
if err != nil {
t.Fatalf("Build() = %v", err)
}
img, ok := result.(v1.Image)
if !ok {
t.Fatalf("Build() not an Image: %T", result)
}
ls, err := img.Layers()
if err != nil {
t.Fatalf("Layers() = %v", err)
}
// Check that we have the expected number of layers.
t.Run("check layer count", func(t *testing.T) {
// We get a layer for the go binary and a layer for the kodata/
if got, want := int64(len(ls)), baseLayers+2; got != want {
t.Fatalf("len(Layers()) = %v, want %v", got, want)
}
})
// Check that rebuilding the image again results in the same image digest.
t.Run("check determinism", func(t *testing.T) {
result2, err := ng.Build(context.Background(), StrictScheme+importpath)
if err != nil {
t.Fatalf("Build() = %v", err)
}
d1, err := result.Digest()
if err != nil {
t.Fatalf("Digest() = %v", err)
}
d2, err := result2.Digest()
if err != nil {
t.Fatalf("Digest() = %v", err)
}
if d1 != d2 {
t.Errorf("Digest mismatch: %s != %s", d1, d2)
}
})
// Check that the entrypoint of the image is configured to invoke our Go application
t.Run("check entrypoint", func(t *testing.T) {
cfg, err := img.ConfigFile()
if err != nil {
t.Errorf("ConfigFile() = %v", err)
}
entrypoint := cfg.Config.Entrypoint
if got, want := len(entrypoint), 1; got != want {
t.Errorf("len(entrypoint) = %v, want %v", got, want)
}
if got, want := entrypoint[0], "/ko-app/ko"; got != want {
t.Errorf("entrypoint = %v, want %v", got, want)
}
})
t.Run("check creation time", func(t *testing.T) {
cfg, err := img.ConfigFile()
if err != nil {
t.Errorf("ConfigFile() = %v", err)
}
actual := cfg.Created
if actual.Time != creationTime.Time {
t.Errorf("created = %v, want %v", actual, creationTime)
}
})
}
func validateImage(t *testing.T, img oci.SignedImage, baseLayers int64, base name.Reference, creationTime v1.Time, checkAnnotations bool, expectSBOM bool) {
t.Helper()
ls, err := img.Layers()
if err != nil {
t.Fatalf("Layers() = %v", err)
}
// Check that we have the expected number of layers.
t.Run("check layer count", func(t *testing.T) {
// We get a layer for the go binary and a layer for the kodata/
if got, want := int64(len(ls)), baseLayers+2; got != want {
t.Fatalf("len(Layers()) = %v, want %v", got, want)
}
})
t.Run("check app layer contents", func(t *testing.T) {
dataLayer := ls[baseLayers]
if _, err := dataLayer.Digest(); err != nil {
t.Errorf("Digest() = %v", err)
}
// We don't check the data layer here because it includes a symlink of refs and
// will produce a distinct hash each time we commit something.
r, err := dataLayer.Uncompressed()
if err != nil {
t.Errorf("Uncompressed() = %v", err)
}
defer r.Close()
tr := tar.NewReader(r)
if _, err := tr.Next(); errors.Is(err, io.EOF) {
t.Errorf("Layer contained no files")
}
})
// Check that the kodata layer contains the expected data (even though it was a symlink
// outside kodata).
t.Run("check kodata", func(t *testing.T) {
dataLayer := ls[baseLayers]
r, err := dataLayer.Uncompressed()
if err != nil {
t.Errorf("Uncompressed() = %v", err)
}
defer r.Close()
found := false
tr := tar.NewReader(r)
for {
header, err := tr.Next()
if errors.Is(err, io.EOF) {
break
} else if err != nil {
t.Errorf("Next() = %v", err)
continue
}
if header.Name != path.Join(kodataRoot, "kenobi") {
continue
}
found = true
body, err := io.ReadAll(tr)
if err != nil {
t.Errorf("ReadAll() = %v", err)
} else if want, got := "Hello there\n", string(body); got != want {
t.Errorf("ReadAll() = %v, wanted %v", got, want)
}
}
if !found {
t.Error("Didn't find expected file in tarball")
}
})
// Check that the entrypoint of the image is configured to invoke our Go application
t.Run("check entrypoint", func(t *testing.T) {
cfg, err := img.ConfigFile()
if err != nil {
t.Errorf("ConfigFile() = %v", err)
}
entrypoint := cfg.Config.Entrypoint
if got, want := len(entrypoint), 1; got != want {
t.Errorf("len(entrypoint) = %v, want %v", got, want)
}
if got, want := entrypoint[0], "/ko-app/test"; got != want {
t.Errorf("entrypoint = %v, want %v", got, want)
}
})
// Check that the environment contains the KO_DATA_PATH environment variable.
t.Run("check KO_DATA_PATH env var", func(t *testing.T) {
cfg, err := img.ConfigFile()
if err != nil {
t.Errorf("ConfigFile() = %v", err)
}
found := false
for _, entry := range cfg.Config.Env {
if entry == "KO_DATA_PATH="+kodataRoot {
found = true
}
}
if !found {
t.Error("Didn't find KO_DATA_PATH.")
}
})
// Check that PATH contains the directory of the produced binary.
t.Run("check PATH env var", func(t *testing.T) {
cfg, err := img.ConfigFile()
if err != nil {
t.Errorf("ConfigFile() = %v", err)
}
found := false
for _, envVar := range cfg.Config.Env {
if strings.HasPrefix(envVar, "PATH=") {
pathValue := strings.TrimPrefix(envVar, "PATH=")
pathEntries := strings.Split(pathValue, ":")
for _, pathEntry := range pathEntries {
if pathEntry == "/ko-app" {
found = true
}
}
}
}
if !found {
t.Error("Didn't find entrypoint in PATH.")
}
})
t.Run("check creation time", func(t *testing.T) {
cfg, err := img.ConfigFile()
if err != nil {
t.Errorf("ConfigFile() = %v", err)
}
actual := cfg.Created
if actual.Time != creationTime.Time {
t.Errorf("created = %v, want %v", actual, creationTime)
}
})
t.Run("check annotations", func(t *testing.T) {
if !checkAnnotations {
t.Skip("skipping annotations check")
}
mf, err := img.Manifest()
if err != nil {
t.Fatalf("Manifest() = %v", err)
}
t.Logf("Got annotations: %v", mf.Annotations)
if _, found := mf.Annotations[specsv1.AnnotationBaseImageDigest]; !found {
t.Errorf("image annotations did not contain base image digest")
}
want := base.Name()
if got := mf.Annotations[specsv1.AnnotationBaseImageName]; got != want {
t.Errorf("base image ref; got %q, want %q", got, want)
}
})
if expectSBOM {
t.Run("checking for SBOM", func(t *testing.T) {
f, err := img.Attachment("sbom")
if err != nil {
t.Fatalf("Attachment() = %v", err)
}
b, err := f.Payload()
if err != nil {
t.Fatalf("Payload() = %v", err)
}
t.Logf("Got SBOM: %v", string(b))
if string(b) != wantSBOM {
t.Errorf("got SBOM %s, wanted %s", string(b), wantSBOM)
}
})
} else {
t.Run("checking for no SBOM", func(t *testing.T) {
f, err := img.Attachment("sbom")
if err == nil {
b, err := f.Payload()
if err != nil {
t.Fatalf("Payload() = %v", err)
}
t.Fatalf("Attachment() = %v, wanted error", string(b))
}
})
}
}
func TestGoBuild(t *testing.T) {
baseLayers := int64(3)
base, err := random.Image(1024, baseLayers)
if err != nil {
t.Fatalf("random.Image() = %v", err)
}
importpath := "github.com/google/ko"
creationTime := v1.Time{Time: time.Unix(5000, 0)}
ng, err := NewGo(
context.Background(),
"",
WithCreationTime(creationTime),
WithBaseImages(func(context.Context, string) (name.Reference, Result, error) { return baseRef, base, nil }),
withBuilder(writeTempFile),
withSBOMber(fauxSBOM),
WithLabel("foo", "bar"),
WithLabel("hello", "world"),
WithAnnotation("fizz", "buzz"),
WithAnnotation("goodbye", "world"),
WithUser("1234:1234"),
WithPlatforms("all"),
)
if err != nil {
t.Fatalf("NewGo() = %v", err)
}
result, err := ng.Build(context.Background(), StrictScheme+filepath.Join(importpath, "test"))
if err != nil {
t.Fatalf("Build() = %v", err)
}
img, ok := result.(oci.SignedImage)
if !ok {
t.Fatalf("Build() not a SignedImage: %T", result)
}
validateImage(t, img, baseLayers, baseRef, creationTime, true, true)
// Check that rebuilding the image again results in the same image digest.
t.Run("check determinism", func(t *testing.T) {
result2, err := ng.Build(context.Background(), StrictScheme+filepath.Join(importpath, "test"))
if err != nil {
t.Fatalf("Build() = %v", err)
}
d1, err := result.Digest()
if err != nil {
t.Fatalf("Digest() = %v", err)
}
d2, err := result2.Digest()
if err != nil {
t.Fatalf("Digest() = %v", err)
}
if d1 != d2 {
t.Errorf("Digest mismatch: %s != %s", d1, d2)
}
})
t.Run("check labels", func(t *testing.T) {
cfg, err := img.ConfigFile()
if err != nil {
t.Fatalf("ConfigFile() = %v", err)
}
want := map[string]string{
"foo": "bar",
"hello": "world",
}
got := cfg.Config.Labels
if d := cmp.Diff(got, want); d != "" {
t.Fatalf("Labels diff (-got,+want): %s", d)
}
})
t.Run("check annotations", func(t *testing.T) {
baseDigest, err := base.Digest()
if err != nil {
t.Fatalf("base.Digest() = %v", err)
}
man, err := img.Manifest()
if err != nil {
t.Fatalf("Manifest() = %v", err)
}
want := map[string]string{
specsv1.AnnotationBaseImageName: baseRef.Name(),
specsv1.AnnotationBaseImageDigest: baseDigest.String(),
"fizz": "buzz",
"goodbye": "world",
}
got := man.Annotations
if d := cmp.Diff(got, want); d != "" {
t.Fatalf("Annotations diff (-got,+want): %s", d)
}
})
t.Run("check user", func(t *testing.T) {
cfg, err := img.ConfigFile()
if err != nil {
t.Fatalf("ConfigFile() = %v", err)
}
want := "1234:1234"
got := cfg.Config.User
if got != want {
t.Fatalf("User: %s != %s", want, got)
}
})
}
func TestGoBuild_Defaults(t *testing.T) {
baseLayers := int64(3)
base, err := random.Image(1024, baseLayers)
if err != nil {
t.Fatalf("random.Image() = %v", err)
}
importpath := "github.com/google/ko"
creationTime := v1.Time{Time: time.Unix(5000, 0)}
var buildCtx buildContext
ng, err := NewGo(
context.Background(),
"",
WithCreationTime(creationTime),
WithBaseImages(func(context.Context, string) (name.Reference, Result, error) { return baseRef, base, nil }),
withBuilder(func(_ context.Context, b buildContext) (string, error) {
buildCtx = b
return "", errors.New("fake build error")
}),
withSBOMber(fauxSBOM),
WithPlatforms("all"),
WithDefaultEnv([]string{"FOO=foo", "BAR=bar"}),
WithDefaultFlags([]string{"-v"}),
WithDefaultLdflags([]string{"-s"}),
WithConfig(map[string]Config{
"github.com/google/ko/test": {},
}),
)
require.NoError(t, err)
// Build and capture the buildContext.
_, err = ng.Build(context.Background(), StrictScheme+filepath.Join(importpath, "test"))
require.ErrorContains(t, err, "fake build error")
require.Equal(t, []string{"-v"}, buildCtx.flags)
require.Equal(t, []string{"-s"}, buildCtx.ldflags)
envVars := make(map[string]string)
for _, val := range buildCtx.env {
kv := strings.SplitN(val, "=", 2)
envVars[kv[0]] = kv[1]
}
require.Equal(t, "foo", envVars["FOO"])
require.Equal(t, "bar", envVars["BAR"])
}
func TestGoBuild_ConfigOverrideDefaults(t *testing.T) {
baseLayers := int64(3)
base, err := random.Image(1024, baseLayers)
if err != nil {
t.Fatalf("random.Image() = %v", err)
}
importpath := "github.com/google/ko"
creationTime := v1.Time{Time: time.Unix(5000, 0)}
var buildCtx buildContext
ng, err := NewGo(
context.Background(),
"",
WithCreationTime(creationTime),
WithBaseImages(func(context.Context, string) (name.Reference, Result, error) { return baseRef, base, nil }),