Make loading service retries configurable

config/schema.go

@@ -55,6 +55,7 @@ var schema = `{
 				"restart_services": {"type": "array"},
 				"hypervisor_service": {"type": "boolean"},
 				"shutdown_timeout": {"type": "integer"},
+				"http_load_retries": {"type": "integer"},
 				"preload_wait": {"type": "boolean"}
 			}
 		},

config/types.go

@@ -152,6 +152,7 @@ type RancherConfig struct {
 	RestartServices     []string                                  `yaml:"restart_services,omitempty"`
 	HypervisorService   bool                                      `yaml:"hypervisor_service,omitempty"`
 	ShutdownTimeout     int                                       `yaml:"shutdown_timeout,omitempty"`
+	HTTPLoadRetries     int                                       `yaml:"http_load_retries,omitempty"`
 	PreloadWait         bool                                      `yaml:"preload_wait,omitempty"`
 }
 

os-config.tpl.yml

@@ -1,5 +1,6 @@
 rancher:
   shutdown_timeout: 60
+  http_load_retries: 6
   environment:
     VERSION: {{.VERSION}}
     SUFFIX: {{.SUFFIX}}

pkg/util/network/network.go

@@ -108,8 +108,9 @@ func LoadFromNetwork(location string) ([]byte, error) {
 	}
 	SetProxyEnvironmentVariables()
 
+	cfg := config.LoadConfig()
 	client := httpRetry.NewHTTPClient()
-	client.MaxRetries = 3
+	client.MaxRetries = cfg.Rancher.HTTPLoadRetries
 	log.Debugf("start trying LoadFromNetwork(%s)", location)
 	bytes, err := client.GetRetry(location)
 	if err != nil {