forked from containers/image
/
lookaside_test.go
314 lines (288 loc) · 11.7 KB
/
lookaside_test.go
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package docker
import (
"fmt"
"io/ioutil"
"net/url"
"os"
"path/filepath"
"testing"
"github.com/containers/image/v5/types"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func dockerRefFromString(t *testing.T, s string) dockerReference {
ref, err := ParseReference(s)
require.NoError(t, err, s)
dockerRef, ok := ref.(dockerReference)
require.True(t, ok, s)
return dockerRef
}
func TestSignatureStorageBaseURL(t *testing.T) {
// Error reading configuration directory (/dev/null is not a directory)
_, err := SignatureStorageBaseURL(&types.SystemContext{RegistriesDirPath: "/dev/null"},
dockerRefFromString(t, "//busybox"), false)
assert.Error(t, err)
// No match found
// expect default user storage base
emptyDir, err := ioutil.TempDir("", "empty-dir")
require.NoError(t, err)
defer os.RemoveAll(emptyDir)
base, err := SignatureStorageBaseURL(&types.SystemContext{RegistriesDirPath: emptyDir},
dockerRefFromString(t, "//this/is/not/in/the:configuration"), false)
assert.NoError(t, err)
assert.NotNil(t, base)
assert.Equal(t, "file://"+filepath.Join(os.Getenv("HOME"), defaultUserDockerDir, "//this/is/not/in/the"), base.String())
// Invalid URL
_, err = SignatureStorageBaseURL(&types.SystemContext{RegistriesDirPath: "fixtures/registries.d"},
dockerRefFromString(t, "//localhost/invalid/url/test"), false)
assert.Error(t, err)
// Success
base, err = SignatureStorageBaseURL(&types.SystemContext{RegistriesDirPath: "fixtures/registries.d"},
dockerRefFromString(t, "//example.com/my/project"), false)
assert.NoError(t, err)
require.NotNil(t, base)
assert.Equal(t, "https://sigstore.example.com/my/project", base.String())
}
func TestRegistriesDirPath(t *testing.T) {
const nondefaultPath = "/this/is/not/the/default/registries.d"
const variableReference = "$HOME"
const rootPrefix = "/root/prefix"
tempHome, err := ioutil.TempDir("", "tempHome")
require.NoError(t, err)
defer os.RemoveAll(tempHome)
var userRegistriesDir = filepath.FromSlash(".config/containers/registries.d")
userRegistriesDirPath := filepath.Join(tempHome, userRegistriesDir)
for _, c := range []struct {
sys *types.SystemContext
userFilePresent bool
expected string
}{
// The common case
{nil, false, systemRegistriesDirPath},
// There is a context, but it does not override the path.
{&types.SystemContext{}, false, systemRegistriesDirPath},
// Path overridden
{&types.SystemContext{RegistriesDirPath: nondefaultPath}, false, nondefaultPath},
// Root overridden
{
&types.SystemContext{RootForImplicitAbsolutePaths: rootPrefix},
false,
filepath.Join(rootPrefix, systemRegistriesDirPath),
},
// Root and path overrides present simultaneously,
{
&types.SystemContext{
RootForImplicitAbsolutePaths: rootPrefix,
RegistriesDirPath: nondefaultPath,
},
false,
nondefaultPath,
},
// User registries.d present, not overridden
{&types.SystemContext{}, true, userRegistriesDirPath},
// Context and user User registries.d preset simultaneously
{&types.SystemContext{RegistriesDirPath: nondefaultPath}, true, nondefaultPath},
// Root and user registries.d overrides present simultaneously,
{
&types.SystemContext{
RootForImplicitAbsolutePaths: rootPrefix,
RegistriesDirPath: nondefaultPath,
},
true,
nondefaultPath,
},
// No environment expansion happens in the overridden paths
{&types.SystemContext{RegistriesDirPath: variableReference}, false, variableReference},
} {
if c.userFilePresent {
err := os.MkdirAll(userRegistriesDirPath, 0700)
require.NoError(t, err)
} else {
err := os.RemoveAll(userRegistriesDirPath)
require.NoError(t, err)
}
path := registriesDirPathWithHomeDir(c.sys, tempHome)
assert.Equal(t, c.expected, path)
}
}
func TestLoadAndMergeConfig(t *testing.T) {
tmpDir, err := ioutil.TempDir("", "merge-config")
require.NoError(t, err)
defer os.RemoveAll(tmpDir)
// No registries.d exists
config, err := loadAndMergeConfig(filepath.Join(tmpDir, "thisdoesnotexist"))
require.NoError(t, err)
assert.Equal(t, ®istryConfiguration{Docker: map[string]registryNamespace{}}, config)
// Empty registries.d directory
emptyDir := filepath.Join(tmpDir, "empty")
err = os.Mkdir(emptyDir, 0755)
require.NoError(t, err)
config, err = loadAndMergeConfig(emptyDir)
require.NoError(t, err)
assert.Equal(t, ®istryConfiguration{Docker: map[string]registryNamespace{}}, config)
// Unreadable registries.d directory
unreadableDir := filepath.Join(tmpDir, "unreadable")
err = os.Mkdir(unreadableDir, 0000)
require.NoError(t, err)
_, err = loadAndMergeConfig(unreadableDir)
assert.Error(t, err)
// An unreadable file in a registries.d directory
unreadableFileDir := filepath.Join(tmpDir, "unreadableFile")
err = os.Mkdir(unreadableFileDir, 0755)
require.NoError(t, err)
err = ioutil.WriteFile(filepath.Join(unreadableFileDir, "0.yaml"), []byte("{}"), 0644)
require.NoError(t, err)
err = ioutil.WriteFile(filepath.Join(unreadableFileDir, "1.yaml"), nil, 0000)
require.NoError(t, err)
_, err = loadAndMergeConfig(unreadableFileDir)
assert.Error(t, err)
// Invalid YAML
invalidYAMLDir := filepath.Join(tmpDir, "invalidYAML")
err = os.Mkdir(invalidYAMLDir, 0755)
require.NoError(t, err)
err = ioutil.WriteFile(filepath.Join(invalidYAMLDir, "0.yaml"), []byte("}"), 0644)
require.NoError(t, err)
_, err = loadAndMergeConfig(invalidYAMLDir)
assert.Error(t, err)
// Duplicate DefaultDocker
duplicateDefault := filepath.Join(tmpDir, "duplicateDefault")
err = os.Mkdir(duplicateDefault, 0755)
require.NoError(t, err)
err = ioutil.WriteFile(filepath.Join(duplicateDefault, "0.yaml"),
[]byte("default-docker:\n sigstore: file:////tmp/something"), 0644)
require.NoError(t, err)
err = ioutil.WriteFile(filepath.Join(duplicateDefault, "1.yaml"),
[]byte("default-docker:\n sigstore: file:////tmp/different"), 0644)
require.NoError(t, err)
_, err = loadAndMergeConfig(duplicateDefault)
assert.ErrorContains(t, err, "0.yaml")
assert.ErrorContains(t, err, "1.yaml")
// Duplicate DefaultDocker
duplicateNS := filepath.Join(tmpDir, "duplicateNS")
err = os.Mkdir(duplicateNS, 0755)
require.NoError(t, err)
err = ioutil.WriteFile(filepath.Join(duplicateNS, "0.yaml"),
[]byte("docker:\n example.com:\n sigstore: file:////tmp/something"), 0644)
require.NoError(t, err)
err = ioutil.WriteFile(filepath.Join(duplicateNS, "1.yaml"),
[]byte("docker:\n example.com:\n sigstore: file:////tmp/different"), 0644)
require.NoError(t, err)
_, err = loadAndMergeConfig(duplicateNS)
assert.ErrorContains(t, err, "0.yaml")
assert.ErrorContains(t, err, "1.yaml")
// A fully worked example, including an empty-dictionary file and a non-.yaml file
config, err = loadAndMergeConfig("fixtures/registries.d")
require.NoError(t, err)
assert.Equal(t, ®istryConfiguration{
DefaultDocker: ®istryNamespace{SigStore: "file:///mnt/companywide/signatures/for/other/repositories"},
Docker: map[string]registryNamespace{
"example.com": {SigStore: "https://sigstore.example.com"},
"registry.test.example.com": {SigStore: "http://registry.test.example.com/sigstore"},
"registry.test.example.com:8888": {SigStore: "http://registry.test.example.com:8889/sigstore", SigStoreStaging: "https://registry.test.example.com:8889/sigstore/specialAPIserverWhichDoesNotExist"},
"localhost": {SigStore: "file:///home/mitr/mydevelopment1"},
"localhost:8080": {SigStore: "file:///home/mitr/mydevelopment2"},
"localhost/invalid/url/test": {SigStore: ":emptyscheme"},
"docker.io/contoso": {SigStore: "https://sigstore.contoso.com/fordocker"},
"docker.io/centos": {SigStore: "https://sigstore.centos.org/"},
"docker.io/centos/mybetaproduct": {
SigStore: "http://localhost:9999/mybetaWIP/sigstore",
SigStoreStaging: "file:///srv/mybetaWIP/sigstore",
},
"docker.io/centos/mybetaproduct:latest": {SigStore: "https://sigstore.centos.org/"},
},
}, config)
}
func TestRegistryConfigurationSignatureTopLevel(t *testing.T) {
config := registryConfiguration{
DefaultDocker: ®istryNamespace{SigStore: "=default", SigStoreStaging: "=default+w"},
Docker: map[string]registryNamespace{},
}
for _, ns := range []string{
"localhost",
"localhost:5000",
"example.com",
"example.com/ns1",
"example.com/ns1/ns2",
"example.com/ns1/ns2/repo",
"example.com/ns1/ns2/repo:notlatest",
} {
config.Docker[ns] = registryNamespace{SigStore: ns, SigStoreStaging: ns + "+w"}
}
for _, c := range []struct{ input, expected string }{
{"example.com/ns1/ns2/repo:notlatest", "example.com/ns1/ns2/repo:notlatest"},
{"example.com/ns1/ns2/repo:unmatched", "example.com/ns1/ns2/repo"},
{"example.com/ns1/ns2/notrepo:notlatest", "example.com/ns1/ns2"},
{"example.com/ns1/notns2/repo:notlatest", "example.com/ns1"},
{"example.com/notns1/ns2/repo:notlatest", "example.com"},
{"unknown.example.com/busybox", "=default"},
{"localhost:5000/busybox", "localhost:5000"},
{"localhost/busybox", "localhost"},
{"localhost:9999/busybox", "=default"},
} {
dr := dockerRefFromString(t, "//"+c.input)
res := config.signatureTopLevel(dr, false)
assert.Equal(t, c.expected, res, c.input)
res = config.signatureTopLevel(dr, true) // test that forWriting is correctly propagated
assert.Equal(t, c.expected+"+w", res, c.input)
}
config = registryConfiguration{
Docker: map[string]registryNamespace{
"unmatched": {SigStore: "a", SigStoreStaging: "b"},
},
}
dr := dockerRefFromString(t, "//thisisnotmatched")
res := config.signatureTopLevel(dr, false)
assert.Equal(t, "", res)
res = config.signatureTopLevel(dr, true)
assert.Equal(t, "", res)
}
func TestRegistryNamespaceSignatureTopLevel(t *testing.T) {
for _, c := range []struct {
ns registryNamespace
forWriting bool
expected string
}{
{registryNamespace{SigStoreStaging: "a", SigStore: "b"}, true, "a"},
{registryNamespace{SigStoreStaging: "a", SigStore: "b"}, false, "b"},
{registryNamespace{SigStore: "b"}, true, "b"},
{registryNamespace{SigStore: "b"}, false, "b"},
{registryNamespace{SigStoreStaging: "a"}, true, "a"},
{registryNamespace{SigStoreStaging: "a"}, false, ""},
{registryNamespace{}, true, ""},
{registryNamespace{}, false, ""},
} {
res := c.ns.signatureTopLevel(c.forWriting)
assert.Equal(t, c.expected, res, fmt.Sprintf("%#v %v", c.ns, c.forWriting))
}
}
func TestSignatureStorageBaseSignatureStorageURL(t *testing.T) {
const mdInput = "sha256:0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"
const mdMapped = "sha256=0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"
for _, c := range []struct {
base string
index int
expected string
}{
{"file:///tmp", 0, "file:///tmp@" + mdMapped + "/signature-1"},
{"file:///tmp", 1, "file:///tmp@" + mdMapped + "/signature-2"},
{"https://localhost:5555/root", 0, "https://localhost:5555/root@" + mdMapped + "/signature-1"},
{"https://localhost:5555/root", 1, "https://localhost:5555/root@" + mdMapped + "/signature-2"},
{"http://localhost:5555/root", 0, "http://localhost:5555/root@" + mdMapped + "/signature-1"},
{"http://localhost:5555/root", 1, "http://localhost:5555/root@" + mdMapped + "/signature-2"},
} {
url, err := url.Parse(c.base)
require.NoError(t, err)
expectedURL, err := url.Parse(c.expected)
require.NoError(t, err)
res := signatureStorageURL(url, mdInput, c.index)
assert.Equal(t, expectedURL, res, c.expected)
}
}
func TestBuiltinDefaultSignatureStorageDir(t *testing.T) {
base := builtinDefaultSignatureStorageDir(0)
assert.NotNil(t, base)
assert.Equal(t, "file://"+defaultDockerDir, base.String())
base = builtinDefaultSignatureStorageDir(1000)
assert.NotNil(t, base)
assert.Equal(t, "file://"+filepath.Join(os.Getenv("HOME"), defaultUserDockerDir), base.String())
}