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
}
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)
}
}
