func labelSelectorFromKubeware(localKubePath string) (string, string, string) {
md := template.ParseMetadata(localKubePath)
normalizedName, err := utils.NormalizeName(md.Name)
utils.CheckError(err)
labelSelector := fmt.Sprintf("kubeware=%s,kubeware-version=%s", normalizedName, md.Version)
return labelSelector, md.Name, md.Version
}
// 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"))
}
// CmdShow implements the 'show' command
func CmdShow(c *cli.Context) {
utils.CheckRequiredFlags(c, []string{"kubeware"})
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)
log.Debugf("Building attributes")
attributes := template.BuildAttributes(os.Getenv("KDEPLOY_ATTRIBUTE"), defaults)
log.Debugf("Parsing services")
servicesSpecs, err := metadata.ParseServices(attributes)
utils.CheckError(err)
log.Debugf("Parsing controllers")
controllersSpecs, err := metadata.ParseControllers(attributes)
utils.CheckError(err)
// print resolved resources
for _, s := range servicesSpecs {
y, err := gyml.JSONToYAML([]byte(s))
utils.CheckError(err)
fmt.Println(string(y))
}
for _, c := range controllersSpecs {
y, err := gyml.JSONToYAML([]byte(c))
utils.CheckError(err)
fmt.Println(string(y))
}
}
// 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)
}