func (s *HTTPSuite) TestMaintenanceMode(c *C) {
mainServer := s.backendServers[0]
errServer := s.backendServers[1]
svcCfg := client.ServiceConfig{
Name: "VHostTest1",
Addr: "127.0.0.1:9000",
VirtualHosts: []string{"vhost1.test"},
Backends: []client.BackendConfig{
{Addr: mainServer.addr},
},
MaintenanceMode: true,
}
if err := Registry.AddService(svcCfg); err != nil {
c.Fatal(err)
}
// No error page is registered, so we should just get a 503 error with no body
checkHTTP("https://vhost1.test:"+s.httpsPort+"/addr", "vhost1.test", "", 503, c)
// Use another backend to provide the error page
svcCfg.ErrorPages = map[string][]int{
"http://" + errServer.addr + "/error?code=503": []int{503},
}
if err := Registry.UpdateService(svcCfg); err != nil {
c.Fatal(err)
}
// Get a 503 error with the cached body
checkHTTP("https://vhost1.test:"+s.httpsPort+"/addr", "vhost1.test", errServer.addr, 503, c)
// Turn maintenance mode off
svcCfg.MaintenanceMode = false
if err := Registry.UpdateService(svcCfg); err != nil {
c.Fatal(err)
}
checkHTTP("https://vhost1.test:"+s.httpsPort+"/addr", "vhost1.test", mainServer.addr, 200, c)
// Turn it back on
svcCfg.MaintenanceMode = true
if err := Registry.UpdateService(svcCfg); err != nil {
c.Fatal(err)
}
checkHTTP("https://vhost1.test:"+s.httpsPort+"/addr", "vhost1.test", errServer.addr, 503, c)
}
func (s *HTTPSuite) TestErrorPage(c *C) {
svcCfg := client.ServiceConfig{
Name: "VHostTest",
Addr: "127.0.0.1:9000",
VirtualHosts: []string{"test-vhost"},
}
okServer := s.backendServers[0]
errServer := s.backendServers[1]
// Add one backend to service requests
cfg := client.BackendConfig{
Addr: okServer.addr,
Name: okServer.addr,
}
svcCfg.Backends = append(svcCfg.Backends, cfg)
// use another backend to provide the error page
svcCfg.ErrorPages = map[string][]int{
"http://" + errServer.addr + "/error": []int{400, 503},
}
err := Registry.AddService(svcCfg)
if err != nil {
c.Fatal(err)
}
// check that the normal response comes from srv1
checkHTTP("http://"+s.httpAddr+"/addr", "test-vhost", okServer.addr, 200, c)
// verify that an unregistered error doesn't give the cached page
checkHTTP("http://"+s.httpAddr+"/error?code=504", "test-vhost", okServer.addr, 504, c)
// now see if the registered error comes from srv2
checkHTTP("http://"+s.httpAddr+"/error?code=503", "test-vhost", errServer.addr, 503, c)
// now check that we got the header cached in the error page as well
req, err := http.NewRequest("GET", "http://"+s.httpAddr+"/error?code=503", nil)
if err != nil {
c.Fatal(err)
}
req.Host = "test-vhost"
resp, err := http.DefaultClient.Do(req)
if err != nil {
c.Fatal(err)
}
c.Assert(resp.StatusCode, Equals, 503)
c.Assert(resp.Header.Get("Last-Modified"), Equals, errServer.addr)
}