Beispiel #1
0
func UpdateAnsibleRC(inventoryFile string, hosts string, c *client.Client, ns string, rcFile string) (*api.ReplicationController, error) {
	rcConfig, err := k8s.ReadReplicationControllerFromFile(rcFile)
	if err != nil {
		return nil, err
	}

	gitUrl, err := findGitUrl()
	if err != nil {
		return nil, err
	}
	if len(gitUrl) == 0 {
		return nil, fmt.Errorf("Could not find git URL in git configu file %s", gitConfig)
	}

	podSpec := k8s.GetOrCreatePodSpec(rcConfig)
	container := k8s.GetFirstContainerOrCreate(rcConfig)
	if len(container.Image) == 0 {
		container.Image = "fabric8/gosupervise"
	}
	if len(container.Name) == 0 {
		container.Name = "gosupervise"
	}
	if len(container.ImagePullPolicy) == 0 {
		container.ImagePullPolicy = "IfNotPresent"
	}
	k8s.EnsureContainerHasEnvVar(container, EnvHosts, hosts)
	command := k8s.GetContainerEnvVar(container, EnvCommand)
	if len(command) == 0 {
		return nil, fmt.Errorf("No environemnt variable value defined for %s in ReplicationController YAML file %s", EnvCommand, rcFile)
	}
	volumeName := "playbook-volume"
	k8s.EnsurePodSpecHasGitVolume(podSpec, volumeName, gitUrl, "master")
	k8s.EnsureContainerHasGitVolumeMount(container, volumeName, PlaybookVolumeMount)

	hostEntries, err := LoadHostEntries(inventoryFile, hosts)
	if err != nil {
		return nil, err
	}
	log.Info("Found %d host entries in the Ansible inventory for %s", len(hostEntries), hosts)
	log.Info("Using git URL %s", gitUrl)

	rcName := rcConfig.ObjectMeta.Name
	isUpdate := true
	rc, err := c.ReplicationControllers(ns).Get(rcName)
	if err != nil {
		isUpdate = false
		rc = &api.ReplicationController{
			ObjectMeta: api.ObjectMeta{
				Namespace: ns,
				Name:      rcName,
			},
		}
	}
	pods, err := c.Pods(ns).List(nil, nil)
	if err != nil {
		return nil, err
	}

	// merge the RC configuration to allow configuration
	rc.Spec = rcConfig.Spec

	metadata := rc.ObjectMeta
	resourceVersion := metadata.ResourceVersion
	annotations := metadata.Annotations
	rcSpec := &rc.Spec
	rcSpec.Replicas = len(hostEntries)

	log.Info("found RC with name %s and version %s and replicas %d", rcName, resourceVersion, rcSpec.Replicas)

	deletePodsForOldHosts(c, ns, annotations, pods, hostEntries)

	replicationController := c.ReplicationControllers(ns)
	if isUpdate {
		_, err = replicationController.Update(rc)
	} else {
		_, err = replicationController.Create(rc)
	}
	if err != nil {
		log.Info("Failed to update the RC, could be concurrent update failure: %s", err)
		return nil, err
	}
	return rc, nil
}
Beispiel #2
0
func runAnsiblePod(c *cli.Context) {
	args := c.Args()
	if len(args) < 2 {
		log.Die("Expected at least 2 arguments!")
	}
	hosts := args[0]
	command := strings.Join(args[1:], " ")

	log.Info("running command on a host from %s and command `%s`", hosts, command)

	f := cmdutil.NewFactory(nil)
	if f == nil {
		log.Die("Failed to create Kuberentes client factory!")
	}
	kubeclient, _ := f.Client()
	if kubeclient == nil {
		log.Die("Failed to create Kuberentes client!")
	}
	ns, _, _ := f.DefaultNamespace()
	if len(ns) == 0 {
		ns = "default"
	}

	rcFile, err := osExpandAndVerify(c, "rc")
	if err != nil {
		fail(err)
	}

	port, err := osExpandAndVerifyGlobal(c, "port")
	if err != nil {
		fail(err)
	}
	inventory, err := osExpandAndVerify(c, "inventory")
	if err != nil {
		fail(err)
	}
	rc, err := k8s.ReadReplicationControllerFromFile(rcFile)
	if err != nil {
		fail(err)
	}
	rcName := rc.ObjectMeta.Name
	if len(rcName) == 0 {
		log.Die("No ReplicationController name in the yaml file %s", rcFile)
	}
	hostEntry, err := ansible.ChooseHostAndPrivateKey(inventory, hosts, kubeclient, ns, rcName)
	if err != nil {
		fail(err)
	}
	host := hostEntry.Host
	user := hostEntry.User

	useWinRM := c.Bool("winrm") || hostEntry.UseWinRM
	if useWinRM {
		log.Info("Using WinRM to connect to the hosts %s", hosts)
		password, err := osExpandAndVerify(c, "password")
		if err != nil {
			fail(err)
		}
		err = winrm.RemoteWinRmCommand(user, password, host, port, command)
	} else {
		privatekey := hostEntry.PrivateKey
		hostPort := host + ":" + port
		err = ssh.RemoteSshCommand(user, privatekey, hostPort, command)
	}
	if err != nil {
		log.Err("Failed: %v", err)
	}
}