Ejemplo n.º 1
0
// CmdDelete implements 'delete' command
func CmdDelete(c *cli.Context) {
	log.Debugf("deleting : %s", os.Getenv("KDEPLOY_KUBEWARE"))

	var kubewareName string
	var kubewareVersion string
	var labelSelector string
	var err error

	namespace := os.Getenv("KDEPLOY_NAMESPACE")
	kubeware := os.Getenv("KDEPLOY_KUBEWARE")
	localKubePath, err := fetchers.Fetch(kubeware)
	if err != nil {
		log.Fatal(fmt.Errorf("Could not fetch kubeware: '%s' (%v)", kubeware, err))
	}

	if localKubePath != "" {
		labelSelector, kubewareName, kubewareVersion = labelSelectorFromKubeware(localKubePath)
	} else {
		// could not be fetched so we will interpret it as a name
		kubewareName, err = utils.NormalizeName(kubeware)
		utils.CheckError(err)
		labelSelector = labelSelectorFromName(kubewareName)
	}

	kubernetes, err := webservice.NewKubeClient()
	utils.CheckError(err)

	// get services which are currently deployed as part of the kube
	serviceList, err := kubernetes.GetServicesForNamespace(namespace, labelSelector)
	utils.CheckError(err)
	log.Debugf("Services: %v", serviceList)

	// get controllers which are currently deployed as part of the kube
	controllerList, err := kubernetes.GetControllersForNamespace(namespace, labelSelector)
	utils.CheckError(err)
	log.Debugf("Controllers: %v", controllerList)

	// If no resources found that means it's not deployed
	if len(*serviceList) == 0 || len(*controllerList) == 0 {
		var version string
		if kubewareVersion != "" {
			version = fmt.Sprintf(" (%s)", kubewareVersion)
		}
		log.Warnf("Could not delete kubeware '%s'%s since it is not currently deployed", kubewareName, version)
		return
	}

	// delete them
	ds := deletionStrategies.WaitZeroReplicasDeletionStrategy(kubernetes)
	err = ds.Delete(namespace, svcNames(serviceList), rcNames(controllerList))
	utils.CheckError(err)

	log.Infof("Kubeware '%s.%s' has been deleted", namespace, kubewareName)
}
Ejemplo n.º 2
0
// CmdDeploy implements the 'deploy' command
func CmdDeploy(c *cli.Context) {
	utils.CheckRequiredFlags(c, []string{"kubeware"})

	var kubeware string
	var localKubePath string
	var err error

	kubeware = os.Getenv("KDEPLOY_KUBEWARE")
	localKubePath, err = fetchers.Fetch(kubeware)
	if err != nil {
		log.Fatal(fmt.Errorf("Could not fetch kubeware: '%s' (%v)", kubeware, err))
	}

	log.Debugf("Going to parse kubeware in %s", localKubePath)

	metadata := template.ParseMetadata(localKubePath)
	defaults, err := metadata.AttributeDefaults()
	utils.CheckError(err)
	// build attributes merging "role list" to defaults
	log.Debugf("Building attributes")
	attributes := template.BuildAttributes(c.String("attribute"), defaults)
	// get list of services and parse each one
	log.Debugf("Parsing services")
	servicesSpecs, err := metadata.ParseServices(attributes)
	utils.CheckError(err)
	// get list of replica controllers and parse each one
	log.Debugf("Parsing controllers")
	controllersSpecs, err := metadata.ParseControllers(attributes)
	utils.CheckError(err)
	// creates Kubernetes client
	kubernetes, err := webservice.NewKubeClient()
	utils.CheckError(err)
	// check if kubeware already exists
	log.Debugf("Checking if already deployed")
	deployedVersion, err := kubernetes.FindDeployedKubewareVersion(os.Getenv("KDEPLOY_NAMESPACE"), metadata.Name)
	utils.CheckError(err)
	if deployedVersion != "" {
		log.Errorf("Can not deploy '%s' since version '%s' is already deployed", metadata.Name, deployedVersion)
		return
	}
	// create each of the services
	log.Debugf("Creating services")
	err = kubernetes.CreateServices(utils.Values(servicesSpecs))
	utils.CheckError(err)
	// create each of the controllers
	log.Debugf("Creating controllers")
	err = kubernetes.CreateReplicaControllers(utils.Values(controllersSpecs))
	utils.CheckError(err)

	log.Infof("Kubeware %s from %s has been deployed", metadata.Name, os.Getenv("KDEPLOY_KUBEWARE"))
}
Ejemplo n.º 3
0
// CmdUpgrade implements 'upgrade' command
func CmdUpgrade(c *cli.Context) {
	var kubeware string
	var localKubePath string
	var err error

	kubeware = os.Getenv("KDEPLOY_KUBEWARE")
	localKubePath, err = fetchers.Fetch(kubeware)
	if err != nil {
		log.Fatal(fmt.Errorf("Could not fetch kubeware: '%s' (%v)", kubeware, err))
	}

	log.Debugf("Going to parse kubeware in %s", localKubePath)

	md := template.ParseMetadata(localKubePath)
	utils.CheckError(err)

	kubernetes, err := webservice.NewKubeClient()
	utils.CheckError(err)

	namespace := os.Getenv("KDEPLOY_NAMESPACE")
	// labelSelector := fmt.Sprintf("kubeware=%s,kubeware-version=%s", md.Name, md.Version)

	// Check if kubeware already installed, error if it's not
	v, err := kubernetes.FindDeployedKubewareVersion(namespace, md.Name)
	utils.CheckError(err)
	if v == "" {
		log.Fatalf("Kubeware '%s.%s' is not deployed and thus it can't be upgraded", namespace, md.Name)
	}
	log.Infof("Found version %s of %s.%s", v, namespace, md.Name)

	// Check if equal or newer version already exists, error if so
	deployedVersion, err := version.NewVersion(v)
	utils.CheckError(err)
	upgradeVersion, err := version.NewVersion(md.Version)
	utils.CheckError(err)
	if upgradeVersion.LessThan(deployedVersion) {
		log.Fatalf("Can not upgrade to version '%s' since version '%s' is already deployed", md.Version, v)
	}

	// build attributes merging "role list" to defaults
	log.Debugf("Building attributes")
	defaults, err := md.AttributeDefaults()
	utils.CheckError(err)
	attributes := template.BuildAttributes(c.String("attribute"), defaults)

	// get services and parse each one
	log.Debugf("Parsing services")
	servicesSpecs, err := md.ParseServices(attributes)
	utils.CheckError(err)

	// get replica controllers and parse each one
	log.Debugf("Parsing controllers")
	controllersSpecs, err := md.ParseControllers(attributes)
	utils.CheckError(err)

	// upgStrategy := upgradeStrategies.RecreateAllStrategy(kubernetes)
	// upgStrategy := upgradeStrategies.RollRcPatchSvcStrategy(kubernetes, 1)
	upgStrategy := upgradeStrategies.BuildUpgradeStrategy(os.Getenv("KDEPLOY_UPGRADE_STRATEGY"), kubernetes)
	upgStrategy.Upgrade(namespace, servicesSpecs, controllersSpecs)

	log.Infof("Kubeware '%s.%s' has been upgraded from version '%s' to '%s'", namespace, md.Name, v, md.Version)
}
Ejemplo n.º 4
0
// CmdList implements 'list' command
func CmdList(c *cli.Context) {
	var fqdns []string
	up := 0
	kubernetes, err := webservice.NewKubeClient()
	utils.CheckError(err)
	// Get all services to extract their kubeware labels
	log.Debug("Get all services to extract their kubeware labels ...")
	serviceList, err := kubernetes.GetServices()
	utils.CheckError(err)
	// Get all controllers to extract their kubeware labels
	log.Debug("Get all controllers to extract their kubeware labels ...")
	controllersList, err := kubernetes.GetControllers()
	utils.CheckError(err)
	// build the list to be printed
	kubeList := models.BuildKubeList(serviceList, controllersList)

	if len(kubeList) > 0 {
		w := tabwriter.NewWriter(os.Stdout, 10, 1, 5, ' ', 0)

		if c.Bool("all") || (!c.Bool("services") && !c.Bool("controllers")) {
			fmt.Fprintln(w, "KUBEWARE\tNAMESPACE\tVERSION\tSVC\tRC\tUP\tFQDN\r")
			for _, kubeware := range kubeList {
				for _, service := range kubeware.Services {
					if service.GetFQDN() != "" {
						fqdns = append(fqdns, service.GetFQDN())
					}
				}
				for _, controller := range kubeware.ReplicaControllers {
					up = up + controller.GetUpStats()
				}
				if len(kubeware.Services) > 0 {
					up = up / len(kubeware.Services)
				}

				if len(fqdns) > 0 {
					fmt.Fprintf(w, "%s\t%s\t%s\t%d\t%d\t%d%%\t%s\n", kubeware.GetKube(), kubeware.GetNamespace(), kubeware.GetVersion(), len(kubeware.Services), len(kubeware.ReplicaControllers), up, strings.Join(fqdns, ","))
				} else {
					fmt.Fprintf(w, "%s\t%s\t%s\t%d\t%d%%\t%d\n", kubeware.GetKube(), kubeware.GetNamespace(), kubeware.GetVersion(), len(kubeware.Services), up, len(kubeware.ReplicaControllers))
				}
				up = 0
				fqdns = []string{}
			}
		}
		if c.Bool("all") {
			fmt.Fprintf(w, "\n")
		}
		if c.Bool("all") || c.Bool("services") {
			fmt.Fprintln(w, "KUBEWARE\tNAMESPACE\tSVC\tINTERNAL IP\tFQDN\r")
			for _, kubeware := range kubeList {
				for _, service := range kubeware.Services {
					if service.GetFQDN() != "" {
						fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s\n", kubeware.GetKube(), service.GetNamespace(), service.GetName(), service.GetInternalIp(), service.GetFQDN())
					} else {
						fmt.Fprintf(w, "%s\t%s\t%s\t%s\n", kubeware.GetKube(), service.GetNamespace(), service.GetName(), service.GetInternalIp())
					}
				}
			}
		}
		if c.Bool("all") {
			fmt.Fprintf(w, "\n")
		}
		if c.Bool("all") || c.Bool("controllers") {
			fmt.Fprintln(w, "KUBEWARE\tNAMESPACE\tRC\tREPLICAS\tUP\r")
			for _, kubeware := range kubeList {
				for _, replicaController := range kubeware.ReplicaControllers {
					fmt.Fprintf(w, "%s\t%s\t%s\t%d\t%d%%\n", kubeware.GetKube(), kubeware.GetNamespace(), replicaController.GetName(), replicaController.GetReplicas(), replicaController.GetUpStats())
				}
			}
		}
		w.Flush()
	} else {
		log.Infof("No Kubeware deployed")
	}
}