add minio as storage type

pkg/server/storage/minio.go

@@ -0,0 +1,26 @@
+package storage
+
+import "strings"
+
+type Minio struct {
+	Storage
+}
+
+func (m *Minio) Type() string {
+	return string(MinioType)
+}
+
+func (m *Minio) PodEnvVars() map[string]string {
+	s3 := m.Storage.(*S3)
+	endpoint := strings.Split(strings.TrimPrefix(s3.Endpoint, "http://"), ":")
+	return map[string]string{
+		"S3_HOST":      endpoint[0],
+		"S3_PORT":      endpoint[1],
+		"MINIO_BUCKET": s3.Bucket,
+	}
+}
+
+func newMinio(conf *Config) Storage {
+	s3 := newS3(conf)
+	return &Minio{Storage: s3}
+}

pkg/server/storage/minio_test.go

@@ -0,0 +1,39 @@
+package storage
+
+import (
+	"fmt"
+	"testing"
+)
+
+func TestMinioType(t *testing.T) {
+	minio := newMinio(&Config{})
+	if tmp := minio.Type(); tmp != "minio" {
+		t.Errorf("expected minio, got %s", tmp)
+	}
+}
+
+func TestMinioPodEnvVars(t *testing.T) {
+	expectedHost := "url"
+	expectedPort := "9000"
+	expectedBucket := "test"
+	minio := newMinio(&Config{
+		AwsEndpoint: fmt.Sprintf("http://%s:%s", expectedHost, expectedPort),
+		AwsBucket:   expectedBucket,
+	})
+	ev := minio.PodEnvVars()
+
+	var testCases = []struct {
+		env      string
+		expected string
+	}{
+		{"S3_HOST", expectedHost},
+		{"S3_PORT", expectedPort},
+		{"MINIO_BUCKET", expectedBucket},
+	}
+
+	for _, tc := range testCases {
+		if tmp := ev[tc.env]; tmp != tc.expected {
+			t.Errorf("expected %s, got %s", tc.expected, tc.env)
+		}
+	}
+}

pkg/server/storage/storage.go

@@ -7,8 +7,9 @@ import (
 type storageType string
 
 const (
-	S3Type   storageType = "s3"
-	FakeType storageType = "fake"
+	S3Type    storageType = "s3"
+	MinioType storageType = "minio"
+	FakeType  storageType = "fake"
 )
 
 type Config struct {
@@ -31,8 +32,12 @@ type Storage interface {
 }
 
 func New(conf *Config) (Storage, error) {
-	if conf.Type != S3Type {
+	switch conf.Type {
+	case S3Type:
+		return newS3(conf), nil
+	case MinioType:
+		return newMinio(conf), nil
+	default:
 		return nil, ErrInvalidStorageType
 	}
-	return newS3(conf), nil
 }