HCPCP-1619: allow unix socket path to the host

api/api.go

@@ -368,6 +368,9 @@ type Config struct {
 	// HttpAuth is the auth info to use for http access.
 	HttpAuth *HttpBasicAuth
 
+	// HostOverride is the override to host. Default is Address.
+	HostOverride string
+
 	// WaitTime limits how long a Watch will block. If not provided,
 	// the agent default values will be used.
 	WaitTime time.Duration
@@ -1029,6 +1032,9 @@ func (r *request) toHTTP() (*http.Request, error) {
 	req.URL.Host = r.url.Host
 	req.URL.Scheme = r.url.Scheme
 	req.Host = r.url.Host
+	if r.config.HostOverride != "" {
+		req.Host = r.config.HostOverride
+	}
 	req.Header = r.header
 
 	// Content-Type must always be set when a body is present

api/api_test.go

@@ -994,6 +994,22 @@ func TestAPI_RequestToHTTP(t *testing.T) {
 	}
 }
 
+func TestAPI_RequestToHTTP_HostOverride(t *testing.T) {
+	t.Parallel()
+	c, s := makeClient(t)
+	defer s.Stop()
+
+	r := c.newRequest("DELETE", "/v1/kv/foo")
+	q := &QueryOptions{
+		Datacenter: "foo",
+	}
+	r.setQueryOptions(q)
+	r.config.HostOverride = "https.consul.unix.socket"
+	req, err := r.toHTTP()
+	require.NoError(t, err)
+	require.Equal(t, "https.consul.unix.socket", req.Host)
+}
+
 func TestAPI_ParseQueryMeta(t *testing.T) {
 	t.Parallel()
 	resp := &http.Response{