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registry.go
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registry.go
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package testhelpers
import (
"context"
"encoding/base64"
"fmt"
"io"
"io/ioutil"
"os"
"path/filepath"
"testing"
"time"
"gopkg.in/src-d/go-git.v4"
"gopkg.in/src-d/go-git.v4/plumbing/object"
dockertypes "github.com/docker/docker/api/types"
dockercontainer "github.com/docker/docker/api/types/container"
"github.com/docker/go-connections/nat"
"golang.org/x/crypto/bcrypt"
"github.com/buildpacks/pack/internal/archive"
)
var registryContainerNames = map[string]string{
"linux": "library/registry:2",
"windows": "stefanscherer/registry-windows:2.6.2",
}
type TestRegistryConfig struct {
runRegistryName string
RunRegistryPort string
DockerConfigDir string
username string
password string
}
func CreateRegistryFixture(t *testing.T, tmpDir, fixturePath string) string {
// copy fixture to temp dir
registryFixtureCopy := filepath.Join(tmpDir, "registryCopy")
RecursiveCopyNow(t, fixturePath, registryFixtureCopy)
// git init that dir
repository, err := git.PlainInit(registryFixtureCopy, false)
AssertNil(t, err)
// git add . that dir
worktree, err := repository.Worktree()
AssertNil(t, err)
_, err = worktree.Add(".")
AssertNil(t, err)
// git commit that dir
commit, err := worktree.Commit("first", &git.CommitOptions{
Author: &object.Signature{
Name: "John Doe",
Email: "john@doe.org",
When: time.Now(),
},
})
AssertNil(t, err)
_, err = repository.CommitObject(commit)
AssertNil(t, err)
return registryFixtureCopy
}
func RunRegistry(t *testing.T) *TestRegistryConfig {
t.Log("run registry")
t.Helper()
runRegistryName := "test-registry-" + RandString(10)
username := RandString(10)
password := RandString(10)
runRegistryPort := startRegistry(t, runRegistryName, username, password)
dockerConfigDir := setupDockerConfigWithAuth(t, username, password, runRegistryPort)
registryConfig := &TestRegistryConfig{
runRegistryName: runRegistryName,
RunRegistryPort: runRegistryPort,
DockerConfigDir: dockerConfigDir,
username: username,
password: password,
}
waitForRegistryToBeAvailable(t, registryConfig)
return registryConfig
}
func waitForRegistryToBeAvailable(t *testing.T, registryConfig *TestRegistryConfig) {
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
for {
_, err := registryConfig.RegistryCatalog()
if err == nil {
break
}
ctxErr := ctx.Err()
if ctxErr != nil {
t.Fatal("registry not ready:", ctxErr.Error(), ":", err.Error())
}
time.Sleep(500 * time.Microsecond)
}
}
func (rc *TestRegistryConfig) AuthConfig() dockertypes.AuthConfig {
return dockertypes.AuthConfig{
Username: rc.username,
Password: rc.password,
ServerAddress: fmt.Sprintf("localhost:%s", rc.RunRegistryPort)}
}
func (rc *TestRegistryConfig) Login(t *testing.T, username string, password string) {
Eventually(t, func() bool {
_, err := dockerCli(t).RegistryLogin(context.Background(), dockertypes.AuthConfig{
Username: username,
Password: password,
ServerAddress: fmt.Sprintf("localhost:%s", rc.RunRegistryPort)})
return err == nil
}, 100*time.Millisecond, 10*time.Second)
}
func startRegistry(t *testing.T, runRegistryName, username, password string) string {
ctx := context.Background()
daemonInfo, err := dockerCli(t).Info(ctx)
AssertNil(t, err)
registryContainerName := registryContainerNames[daemonInfo.OSType]
AssertNil(t, PullImageWithAuth(dockerCli(t), registryContainerName, ""))
htpasswdTar := generateHtpasswd(t, username, password)
defer htpasswdTar.Close()
ctr, err := dockerCli(t).ContainerCreate(ctx, &dockercontainer.Config{
Image: registryContainerName,
Labels: map[string]string{"author": "pack"},
Env: []string{
"REGISTRY_AUTH=htpasswd",
"REGISTRY_AUTH_HTPASSWD_REALM=Registry Realm",
"REGISTRY_AUTH_HTPASSWD_PATH=/registry_test_htpasswd",
},
}, &dockercontainer.HostConfig{
AutoRemove: true,
PortBindings: nat.PortMap{
"5000/tcp": []nat.PortBinding{{}},
},
}, nil, runRegistryName)
AssertNil(t, err)
err = dockerCli(t).CopyToContainer(ctx, ctr.ID, "/", htpasswdTar, dockertypes.CopyToContainerOptions{})
AssertNil(t, err)
err = dockerCli(t).ContainerStart(ctx, ctr.ID, dockertypes.ContainerStartOptions{})
AssertNil(t, err)
inspect, err := dockerCli(t).ContainerInspect(context.TODO(), ctr.ID)
AssertNil(t, err)
runRegistryPort := inspect.NetworkSettings.Ports["5000/tcp"][0].HostPort
if os.Getenv("DOCKER_HOST") != "" {
err := proxyDockerHostPort(runRegistryPort)
AssertNil(t, err)
}
return runRegistryPort
}
func generateHtpasswd(t *testing.T, username string, password string) io.ReadCloser {
// https://docs.docker.com/registry/deploying/#restricting-access
// HTPASSWD format: https://github.com/foomo/htpasswd/blob/e3a90e78da9cff06a83a78861847aa9092cbebdd/hashing.go#L23
passwordBytes, _ := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
reader := archive.CreateSingleFileTarReader("/registry_test_htpasswd", username+":"+string(passwordBytes))
return reader
}
func setupDockerConfigWithAuth(t *testing.T, username string, password string, runRegistryPort string) string {
dockerConfigDir, err := ioutil.TempDir("", "pack.test.docker.config.dir")
AssertNil(t, err)
AssertNil(t, ioutil.WriteFile(filepath.Join(dockerConfigDir, "config.json"), []byte(fmt.Sprintf(`{
"auths": {
"localhost:%s": {
"auth": "%s"
}
}
}
`, runRegistryPort, encodedUserPass(username, password))), 0666))
return dockerConfigDir
}
func encodedUserPass(username string, password string) string {
return base64.StdEncoding.EncodeToString([]byte(fmt.Sprintf("%s:%s", username, password)))
}
func (rc *TestRegistryConfig) StopRegistry(t *testing.T) {
t.Log("stop registry")
t.Helper()
err := dockerCli(t).ContainerKill(context.Background(), rc.runRegistryName, "SIGKILL")
AssertNil(t, err)
err = os.RemoveAll(rc.DockerConfigDir)
AssertNil(t, err)
}
func (rc *TestRegistryConfig) RepoName(name string) string {
return "localhost:" + rc.RunRegistryPort + "/" + name
}
func (rc *TestRegistryConfig) RegistryAuth() string {
return base64.StdEncoding.EncodeToString([]byte(fmt.Sprintf(`{"username":"%s","password":"%s"}`, rc.username, rc.password)))
}
func (rc *TestRegistryConfig) RegistryCatalog() (string, error) {
return HTTPGetE(fmt.Sprintf("http://localhost:%s/v2/_catalog", rc.RunRegistryPort), map[string]string{
"Authorization": "Basic " + encodedUserPass(rc.username, rc.password),
})
}