Add addon to rancherctl

cmd/control/reload.go

@@ -0,0 +1,53 @@
+package control
+
+import (
+	log "github.com/Sirupsen/logrus"
+
+	"github.com/codegangsta/cli"
+	"github.com/rancherio/os/config"
+	"github.com/rancherio/os/docker"
+)
+
+func parseContainers(cfg *config.Config) map[string]*docker.Container {
+	result := map[string]*docker.Container{}
+
+	for _, containerConfig := range cfg.SystemContainers {
+		container := docker.NewContainer(config.DOCKER_SYSTEM_HOST, &containerConfig)
+		if containerConfig.Id != "" {
+			result[containerConfig.Id] = container
+		}
+	}
+
+	return result
+}
+
+func reload(c *cli.Context) {
+	cfg, err := config.LoadConfig()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	containers := parseContainers(cfg)
+	toStart := make([]*docker.Container, 0, len(c.Args()))
+
+	for _, id := range c.Args() {
+		if container, ok := containers[id]; ok {
+			toStart = append(toStart, container.Stage())
+		}
+	}
+
+	var firstErr error
+	for _, c := range toStart {
+		err := c.Start().Err
+		if err != nil {
+			log.Errorf("Failed to start %s : %v", c.ContainerCfg.Id, err)
+			if firstErr != nil {
+				firstErr = err
+			}
+		}
+	}
+
+	if firstErr != nil {
+		log.Fatal(firstErr)
+	}
+}