Add header manipulation rules to Canary CRD

pkg/apis/flagger/v1alpha3/types.go

@@ -109,14 +109,14 @@ type CanaryStatus struct {
 // CanaryService is used to create ClusterIP services
 // and Istio Virtual Service
 type CanaryService struct {
-	Port          int32                            `json:"port"`
-	Gateways      []string                         `json:"gateways"`
-	Hosts         []string                         `json:"hosts"`
-	Match         []istiov1alpha3.HTTPMatchRequest `json:"match,omitempty"`
-	Rewrite       *istiov1alpha3.HTTPRewrite       `json:"rewrite,omitempty"`
-	Timeout       string                           `json:"timeout,omitempty"`
-	Retries       *istiov1alpha3.HTTPRetry         `json:"retries,omitempty"`
-	AppendHeaders map[string]string                `json:"appendHeaders,omitempty"`
+	Port     int32                            `json:"port"`
+	Gateways []string                         `json:"gateways"`
+	Hosts    []string                         `json:"hosts"`
+	Match    []istiov1alpha3.HTTPMatchRequest `json:"match,omitempty"`
+	Rewrite  *istiov1alpha3.HTTPRewrite       `json:"rewrite,omitempty"`
+	Timeout  string                           `json:"timeout,omitempty"`
+	Retries  *istiov1alpha3.HTTPRetry         `json:"retries,omitempty"`
+	Headers  *istiov1alpha3.Headers           `json:"headers,omitempty"`
 }
 
 // CanaryAnalysis is used to describe how the analysis should be done

pkg/apis/flagger/v1alpha3/zz_generated.deepcopy.go

@@ -161,12 +161,10 @@ func (in *CanaryService) DeepCopyInto(out *CanaryService) {
 		*out = new(istiov1alpha3.HTTPRetry)
 		**out = **in
 	}
-	if in.AppendHeaders != nil {
-		in, out := &in.AppendHeaders, &out.AppendHeaders
-		*out = make(map[string]string, len(*in))
-		for key, val := range *in {
-			(*out)[key] = val
-		}
+	if in.Headers != nil {
+		in, out := &in.Headers, &out.Headers
+		*out = new(istiov1alpha3.Headers)
+		(*in).DeepCopyInto(*out)
 	}
 	return
 }