// 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)
}
func onlyMetadata(svcJSON string) string {
var svc map[string]interface{}
err := json.Unmarshal([]byte(svcJSON), &svc)
utils.CheckError(err)
filtered := map[string]interface{}{
"apiVersion": svc["apiVersion"],
"kind": svc["kind"],
"metadata": svc["metadata"],
}
filteredJSON, err := json.Marshal(filtered)
utils.CheckError(err)
return string(filteredJSON)
}
// ParseMetadata parses the metadata file in the kube dir
func ParseMetadata(path string) Metadata {
absPath, err := filepath.Abs(path)
utils.CheckError(err)
metadataFile := fmt.Sprintf("%s/metadata.yaml", filepath.Clean(absPath))
utils.CheckError(err)
metadataContent, err := ioutil.ReadFile(metadataFile)
utils.CheckError(err)
var metadata Metadata
err = yaml.Unmarshal(metadataContent, &metadata)
utils.CheckError(err)
metadata.path = filepath.Dir(metadataFile)
return metadata
}
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
}
func jsonPatchSpecReplicas(nr uint) []byte {
var patch struct {
Spec struct {
Replicas uint `json:"replicas"`
} `json:"spec"`
}
patch.Spec.Replicas = nr
data, err := json.Marshal(patch)
utils.CheckError(err)
return data
}
// 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))
}
}
// 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"))
}
func BuildAttributes(filePath string, defaults map[string]interface{}) map[string]interface{} {
// just defaults if no attributes given
if filePath == "" {
return defaults
}
attJSON, err := ioutil.ReadFile(filePath)
if err != nil {
log.Fatalf("could not read file '%s' (%v)", filePath, err)
}
var attribs map[string]interface{}
err = json.Unmarshal(attJSON, &attribs)
utils.CheckError(err)
attributes := deeply.Merge(defaults, attribs)
return attributes
}
// 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)
}
// 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")
}
}