Beispiel #1
0
func RunInit() error {
	var cfg config.CloudConfig

	os.Setenv("PATH", "/sbin:/usr/sbin:/usr/bin")
	// Magic setting to tell Docker to do switch_root and not pivot_root
	os.Setenv("DOCKER_RAMDISK", "true")

	initFuncs := []config.InitFunc{
		func(cfg *config.CloudConfig) error {
			return dockerlaunch.PrepareFs(&mountConfig)
		},
		func(cfg *config.CloudConfig) error {
			newCfg, err := config.LoadConfig()
			if err == nil {
				newCfg, err = config.LoadConfig()
			}
			if err == nil {
				*cfg = *newCfg
			}

			if cfg.Rancher.Debug {
				cfgString, err := config.Dump(false, true)
				if err != nil {
					log.WithFields(log.Fields{"err": err}).Error("Error serializing config")
				} else {
					log.Debugf("Config: %s", cfgString)
				}
			}

			return err
		},
		loadModules,
		tryMountAndBootstrap,
		func(cfg *config.CloudConfig) error {
			return cfg.Reload()
		},
		loadModules,
		sysInit,
	}

	if err := config.RunInitFuncs(&cfg, initFuncs); err != nil {
		return err
	}

	launchConfig, args := getLaunchConfig(&cfg, &cfg.Rancher.SystemDocker)

	log.Info("Launching System Docker")
	_, err := dockerlaunch.LaunchDocker(launchConfig, config.DOCKER_BIN, args...)
	return err
}
Beispiel #2
0
func newCoreServiceProject(cfg *config.CloudConfig) (*project.Project, error) {
	network := false
	projectEvents := make(chan project.ProjectEvent)
	enabled := make(map[string]string)

	p, err := newProject("os", cfg)
	if err != nil {
		return nil, err
	}

	p.AddListener(project.NewDefaultListener(p))
	p.AddListener(projectEvents)

	p.ReloadCallback = func() error {
		err := cfg.Reload()
		if err != nil {
			return err
		}

		addServices(p, cfg, enabled, cfg.Rancher.Services)

		for service, serviceEnabled := range cfg.Rancher.ServicesInclude {
			if enabled[service] != "" || !serviceEnabled {
				continue
			}

			bytes, err := LoadServiceResource(service, network, cfg)
			if err != nil {
				if err == util.ErrNoNetwork {
					log.Debugf("Can not load %s, networking not enabled", service)
				} else {
					log.Errorf("Failed to load %s : %v", service, err)
				}
				continue
			}

			err = p.Load(bytes)
			if err != nil {
				log.Errorf("Failed to load %s : %v", service, err)
				continue
			}

			enabled[service] = service
		}

		return nil
	}

	go func() {
		for event := range projectEvents {
			if event.Event == project.CONTAINER_STARTED && event.ServiceName == "network" {
				network = true
			}
		}
	}()

	err = p.ReloadCallback()
	if err != nil {
		log.Errorf("Failed to reload os: %v", err)
		return nil, err
	}

	return p, nil
}