Add additional config keys for swift (#4901)

* Add additional config keys for swift

* Add additional swift config keys in the doc page

physical/swift/swift.go

@@ -85,6 +85,27 @@ func NewSwiftBackend(conf map[string]string, logger log.Logger) (physical.Backen
 		projectDomain = conf["project-domain"]
 	}
 
+	region := os.Getenv("OS_REGION_NAME")
+	if region == "" {
+		region = conf["region"]
+	}
+	tenantID := os.Getenv("OS_TENANT_ID")
+	if tenantID == "" {
+		tenantID = conf["tenant_id"]
+	}
+	trustID := os.Getenv("OS_TRUST_ID")
+	if trustID == "" {
+		trustID = conf["trust_id"]
+	}
+	storageUrl := os.Getenv("OS_STORAGE_URL")
+	if storageUrl == "" {
+		storageUrl = conf["storage_url"]
+	}
+	authToken := os.Getenv("OS_AUTH_TOKEN")
+	if authToken == "" {
+		authToken = conf["auth_token"]
+	}
+
 	c := swift.Connection{
 		Domain:       domain,
 		UserName:     username,
@@ -92,6 +113,11 @@ func NewSwiftBackend(conf map[string]string, logger log.Logger) (physical.Backen
 		AuthUrl:      authUrl,
 		Tenant:       project,
 		TenantDomain: projectDomain,
+		Region:       region,
+		TenantId:     tenantID,
+		TrustId:      trustID,
+		StorageUrl:   storageUrl,
+		AuthToken:    authToken,
 		Transport:    cleanhttp.DefaultPooledTransport(),
 	}
 

physical/swift/swift_test.go

@@ -25,6 +25,8 @@ func TestSwiftBackend(t *testing.T) {
 	project := os.Getenv("OS_PROJECT_NAME")
 	domain := os.Getenv("OS_USER_DOMAIN_NAME")
 	projectDomain := os.Getenv("OS_PROJECT_DOMAIN_NAME")
+	region := os.Getenv("OS_REGION_NAME")
+	tenantID := os.Getenv("OS_TENANT_ID")
 
 	ts := time.Now().UnixNano()
 	container := fmt.Sprintf("vault-test-%d", ts)
@@ -36,6 +38,8 @@ func TestSwiftBackend(t *testing.T) {
 		AuthUrl:      authUrl,
 		Tenant:       project,
 		TenantDomain: projectDomain,
+		Region:       region,
+		TenantId:     tenantID,
 		Transport:    cleanhttp.DefaultPooledTransport(),
 	}
 
@@ -75,6 +79,8 @@ func TestSwiftBackend(t *testing.T) {
 		"project":        project,
 		"domain":         domain,
 		"project-domain": projectDomain,
+		"tenant_id":      tenantID,
+		"region":         region,
 	}, logger)
 	if err != nil {
 		t.Fatalf("err: %s", err)