fix - MSTeamsV2 config

Signed-off-by: Hélia Barroso <helia_barroso@hotmail.com>

pkg/alertmanager/amcfg_test.go

@@ -2843,6 +2843,22 @@ func TestSanitizeConfig(t *testing.T) {
 			},
 			expectErr: true,
 		},
+		{
+			name:           "msteamsv2_config with webhook url file set",
+			againstVersion: versionMSteamsV2Allowed,
+			in: &alertmanagerConfig{
+				Receivers: []*receiver{
+					{
+						MSTeamsV2Configs: []*msTeamsV2Config{
+							{
+								WebhookURLFile: "/var/secrets/webhook-url-file",
+							},
+						},
+					},
+				},
+			},
+			golden: "msteamsv2_config_with_webhook_config_file_set.golden",
+		},
 		{
 			name:           "webex_config returns error for missing mandatory field",
 			againstVersion: versionWebexAllowed,

pkg/alertmanager/testdata/msteamsv2_config_for_supported_versions.golden

@@ -2,5 +2,4 @@ receivers:
 - name: ""
   msteamsv2_configs:
   - webhook_url: http://example.com
-    webhook_url_file: ""
 templates: []

pkg/alertmanager/testdata/msteamsv2_config_with_webhook_config_file_set.golden

@@ -0,0 +1,5 @@
+receivers:
+- name: ""
+  msteamsv2_configs:
+  - webhook_url_file: /var/secrets/webhook-url-file
+templates: []

pkg/alertmanager/types.go

@@ -431,8 +431,8 @@ type msTeamsConfig struct {
 
 type msTeamsV2Config struct {
 	SendResolved   *bool             `yaml:"send_resolved,omitempty"`
-	WebhookURL     string            `yaml:"webhook_url"`
-	WebhookURLFile string            `yaml:"webhook_url_file"`
+	WebhookURL     string            `yaml:"webhook_url,omitempty"`
+	WebhookURLFile string            `yaml:"webhook_url_file,omitempty"`
 	Title          string            `yaml:"title,omitempty"`
 	Text           string            `yaml:"text,omitempty"`
 	HTTPConfig     *httpClientConfig `yaml:"http_config,omitempty"`