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Merge pull request #1332 from RichardScothern/gcs-params

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Change the parameters to the GCS drivers to allow CircleCI testing.
This commit is contained in:
Richard Scothern 2016-01-14 15:50:09 -08:00
commit 05dc6404fd
2 changed files with 75 additions and 57 deletions
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77
docs/storage/driver/gcs/gcs.go
View file

@ -32,7 +32,7 @@ import (
"golang.org/x/net/context"
"golang.org/x/oauth2"
"golang.org/x/oauth2/google"
"golang.org/x/oauth2/jwt"
"google.golang.org/api/googleapi"
storageapi "google.golang.org/api/storage/v1"
"google.golang.org/cloud"
@ -47,10 +47,13 @@ import (
const driverName = "gcs"
const dummyProjectID = "<unknown>"
//DriverParameters A struct that encapsulates all of the driver parameters after all values have been set
// driverParameters is a struct that encapsulates all of the driver parameters after all values have been set
type driverParameters struct {
bucket string
keyfile string
config *jwt.Config
email string
privateKey []byte
client *http.Client
rootDirectory string
}
@ -80,25 +83,43 @@ type driver struct {
// Required parameters:
// - bucket
func FromParameters(parameters map[string]interface{}) (storagedriver.StorageDriver, error) {
bucket, ok := parameters["bucket"]
if !ok || fmt.Sprint(bucket) == "" {
return nil, fmt.Errorf("No bucket parameter provided")
}
keyfile, ok := parameters["keyfile"]
if !ok {
keyfile = ""
}
rootDirectory, ok := parameters["rootdirectory"]
if !ok {
rootDirectory = ""
}
var ts oauth2.TokenSource
jwtConf := new(jwt.Config)
if keyfile, ok := parameters["keyfile"]; ok {
jsonKey, err := ioutil.ReadFile(fmt.Sprint(keyfile))
if err != nil {
return nil, err
}
jwtConf, err = google.JWTConfigFromJSON(jsonKey, storage.ScopeFullControl)
if err != nil {
return nil, err
}
ts = jwtConf.TokenSource(context.Background())
} else {
var err error
ts, err = google.DefaultTokenSource(context.Background(), storage.ScopeFullControl)
if err != nil {
return nil, err
}
}
params := driverParameters{
fmt.Sprint(bucket),
fmt.Sprint(keyfile),
fmt.Sprint(rootDirectory),
bucket: fmt.Sprint(bucket),
rootDirectory: fmt.Sprint(rootDirectory),
email: jwtConf.Email,
privateKey: jwtConf.PrivateKey,
client: oauth2.NewClient(context.Background(), ts),
}
return New(params)
@ -106,8 +127,6 @@ func FromParameters(parameters map[string]interface{}) (storagedriver.StorageDri
// New constructs a new driver
func New(params driverParameters) (storagedriver.StorageDriver, error) {
var ts oauth2.TokenSource
var err error
rootDirectory := strings.Trim(params.rootDirectory, "/")
if rootDirectory != "" {
rootDirectory += "/"
@ -115,33 +134,11 @@ func New(params driverParameters) (storagedriver.StorageDriver, error) {
d := &driver{
bucket: params.bucket,
rootDirectory: rootDirectory,
email: params.email,
privateKey: params.privateKey,
client: params.client,
}
if params.keyfile == "" {
ts, err = google.DefaultTokenSource(context.Background(), storage.ScopeFullControl)
if err != nil {
return nil, err
}
} else {
jsonKey, err := ioutil.ReadFile(params.keyfile)
if err != nil {
return nil, err
}
conf, err := google.JWTConfigFromJSON(
jsonKey,
storage.ScopeFullControl,
)
if err != nil {
return nil, err
}
ts = conf.TokenSource(context.Background())
d.email = conf.Email
d.privateKey = conf.PrivateKey
}
client := oauth2.NewClient(context.Background(), ts)
d.client = client
if err != nil {
return nil, err
}
return &base.Base{
StorageDriver: d,
}, nil

55
docs/storage/driver/gcs/gcs_test.go
View file

@ -3,17 +3,18 @@
package gcs
import (
"fmt"
"io/ioutil"
"os"
"testing"
"google.golang.org/api/googleapi"
"fmt"
ctx "github.com/docker/distribution/context"
storagedriver "github.com/docker/distribution/registry/storage/driver"
"github.com/docker/distribution/registry/storage/driver/testsuites"
"golang.org/x/oauth2"
"golang.org/x/oauth2/google"
"google.golang.org/api/googleapi"
"google.golang.org/cloud/storage"
"gopkg.in/check.v1"
)
@ -25,34 +26,54 @@ var skipGCS func() string
func init() {
bucket := os.Getenv("REGISTRY_STORAGE_GCS_BUCKET")
keyfile := os.Getenv("REGISTRY_STORAGE_GCS_KEYFILE")
credentials := os.Getenv("GOOGLE_APPLICATION_CREDENTIALS")
// Skip GCS storage driver tests if environment variable parameters are not provided
skipGCS = func() string {
if bucket == "" || credentials == "" {
return "The following environment variables must be set to enable these tests: REGISTRY_STORAGE_GCS_BUCKET, REGISTRY_STORAGE_GCS_CREDS"
}
return ""
}
if skipGCS() != "" {
return
}
root, err := ioutil.TempDir("", "driver-")
if err != nil {
panic(err)
}
defer os.Remove(root)
gcsDriverConstructor = func(rootDirectory string) (storagedriver.StorageDriver, error) {
_, err = os.Stat(credentials)
if err == nil {
jsonKey, err := ioutil.ReadFile(credentials)
if err != nil {
panic(fmt.Sprintf("Unable to read credentials from file : %s", err))
}
credentials = string(jsonKey)
}
// Assume that the file contents are within the environment variable since it exists
// but does not contain a valid file path
jwtConfig, err := google.JWTConfigFromJSON([]byte(credentials), storage.ScopeFullControl)
if err != nil {
panic(fmt.Sprintf("Error reading JWT config : %s", err))
}
gcsDriverConstructor = func(rootDirectory string) (storagedriver.StorageDriver, error) {
parameters := driverParameters{
bucket,
keyfile,
rootDirectory,
bucket: bucket,
rootDirectory: root,
email: jwtConfig.Email,
privateKey: []byte(jwtConfig.PrivateKey),
client: oauth2.NewClient(ctx.Background(), jwtConfig.TokenSource(ctx.Background())),
}
return New(parameters)
}
// Skip GCS storage driver tests if environment variable parameters are not provided
skipGCS = func() string {
if bucket == "" || (credentials == "" && keyfile == "") {
return "Must set REGISTRY_STORAGE_GCS_BUCKET and (GOOGLE_APPLICATION_CREDENTIALS or REGISTRY_STORAGE_GCS_KEYFILE) to run GCS tests"
}
return ""
}
testsuites.RegisterSuite(func() (storagedriver.StorageDriver, error) {
return gcsDriverConstructor(root)
}, skipGCS)