Add --insecure-registry flag to daemon arguments

config/types.go

@@ -142,6 +142,7 @@ type EngineOpts struct {
 	Group            string            `yaml:"group,omitempty" opt:"group"`
 	Graph            string            `yaml:"graph,omitempty" opt:"graph"`
 	Host             []string          `yaml:"host,omitempty" opt:"host"`
+	InsecureRegistry []string          `yaml:"insecure_registry" opt:"insecure-registry"`
 	LiveRestore      *bool             `yaml:"live_restore,omitempty" opt:"live-restore"`
 	LogDriver        string            `yaml:"log_driver,omitempty" opt:"log-driver"`
 	LogOpts          map[string]string `yaml:"log_opts,omitempty" opt:"log-opt"`

docs/os/configuration/docker/index.md

@@ -40,7 +40,8 @@ Key | Value
 `exec_root` | String
 `group` | String
 `graph` | String
-`host` | String
+`host` | List
+`insecure_registry` | List
 `live_restore` | Boolean
 `log_driver` | String
 `log_opts` | Map where keys and values are strings