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update_service.go
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update_service.go
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package service
import (
"errors"
"fmt"
"strings"
"code.cloudfoundry.org/cli/cf"
"code.cloudfoundry.org/cli/cf/actors/planbuilder"
"code.cloudfoundry.org/cli/cf/api"
"code.cloudfoundry.org/cli/cf/commandregistry"
"code.cloudfoundry.org/cli/cf/configuration/coreconfig"
"code.cloudfoundry.org/cli/cf/flags"
. "code.cloudfoundry.org/cli/cf/i18n"
"code.cloudfoundry.org/cli/cf/models"
"code.cloudfoundry.org/cli/cf/requirements"
"code.cloudfoundry.org/cli/cf/terminal"
"code.cloudfoundry.org/cli/cf/uihelpers"
"code.cloudfoundry.org/cli/util/json"
)
type UpdateService struct {
ui terminal.UI
config coreconfig.Reader
serviceRepo api.ServiceRepository
planBuilder planbuilder.PlanBuilder
}
func init() {
commandregistry.Register(&UpdateService{})
}
func (cmd *UpdateService) MetaData() commandregistry.CommandMetadata {
baseUsage := T("CF_NAME update-service SERVICE_INSTANCE [-p NEW_PLAN] [-c PARAMETERS_AS_JSON] [-t TAGS]")
paramsUsage := T(` Optionally provide service-specific configuration parameters in a valid JSON object in-line.
CF_NAME update-service -c '{"name":"value","name":"value"}'
Optionally provide a file containing service-specific configuration parameters in a valid JSON object.
The path to the parameters file can be an absolute or relative path to a file.
CF_NAME update-service -c PATH_TO_FILE
Example of valid JSON object:
{
"cluster_nodes": {
"count": 5,
"memory_mb": 1024
}
}`)
tagsUsage := T(` Optionally provide a list of comma-delimited tags that will be written to the VCAP_SERVICES environment variable for any bound applications.`)
fs := make(map[string]flags.FlagSet)
fs["p"] = &flags.StringFlag{ShortName: "p", Usage: T("Change service plan for a service instance")}
fs["c"] = &flags.StringFlag{ShortName: "c", Usage: T("Valid JSON object containing service-specific configuration parameters, provided either in-line or in a file. For a list of supported configuration parameters, see documentation for the particular service offering.")}
fs["t"] = &flags.StringFlag{ShortName: "t", Usage: T("User provided tags")}
return commandregistry.CommandMetadata{
Name: "update-service",
Description: T("Update a service instance"),
Usage: []string{
baseUsage,
"\n\n",
paramsUsage,
"\n\n",
tagsUsage,
},
Examples: []string{
`CF_NAME update-service mydb -p gold`,
`CF_NAME update-service mydb -c '{"ram_gb":4}'`,
`CF_NAME update-service mydb -c ~/workspace/tmp/instance_config.json`,
`CF_NAME update-service mydb -t "list,of, tags"`,
},
Flags: fs,
}
}
func (cmd *UpdateService) Requirements(requirementsFactory requirements.Factory, fc flags.FlagContext) ([]requirements.Requirement, error) {
if len(fc.Args()) != 1 {
cmd.ui.Failed(T("Incorrect Usage. Requires an argument\n\n") + commandregistry.Commands.CommandUsage("update-service"))
return nil, fmt.Errorf("Incorrect usage: %d arguments of %d required", len(fc.Args()), 1)
}
reqs := []requirements.Requirement{
requirementsFactory.NewLoginRequirement(),
requirementsFactory.NewTargetedSpaceRequirement(),
}
if fc.String("p") != "" {
reqs = append(reqs, requirementsFactory.NewMinAPIVersionRequirement("Updating a plan", cf.UpdateServicePlanMinimumAPIVersion))
}
return reqs, nil
}
func (cmd *UpdateService) SetDependency(deps commandregistry.Dependency, pluginCall bool) commandregistry.Command {
cmd.ui = deps.UI
cmd.config = deps.Config
cmd.serviceRepo = deps.RepoLocator.GetServiceRepository()
cmd.planBuilder = deps.PlanBuilder
return cmd
}
func (cmd *UpdateService) Execute(c flags.FlagContext) error {
planName := c.String("p")
params := c.String("c")
tagsSet := c.IsSet("t")
tagsList := c.String("t")
if planName == "" && params == "" && tagsSet == false {
cmd.ui.Ok()
cmd.ui.Say(T("No changes were made"))
return nil
}
serviceInstanceName := c.Args()[0]
serviceInstance, err := cmd.serviceRepo.FindInstanceByName(serviceInstanceName)
if err != nil {
return err
}
paramsMap, err := json.ParseJSONFromFileOrString(params)
if err != nil {
return errors.New(T("Invalid configuration provided for -c flag. Please provide a valid JSON object or path to a file containing a valid JSON object."))
}
tags := uihelpers.ParseTags(tagsList)
var plan models.ServicePlanFields
if planName != "" {
plan, err = cmd.findPlan(serviceInstance, planName)
if err != nil {
return err
}
}
cmd.printUpdatingServiceInstanceMessage(serviceInstanceName)
err = cmd.serviceRepo.UpdateServiceInstance(serviceInstance.GUID, plan.GUID, paramsMap, tags)
if err != nil {
return err
}
err = printSuccessMessageForServiceInstance(serviceInstanceName, cmd.serviceRepo, cmd.ui)
if err != nil {
return err
}
return nil
}
func (cmd *UpdateService) findPlan(serviceInstance models.ServiceInstance, planName string) (plan models.ServicePlanFields, err error) {
plans, err := cmd.planBuilder.GetPlansForServiceForOrg(serviceInstance.ServiceOffering.GUID, cmd.config.OrganizationFields().Name)
if err != nil {
return
}
for _, p := range plans {
if p.Name == planName {
plan = p
return
}
}
err = errors.New(T("Plan does not exist for the {{.ServiceName}} service",
map[string]interface{}{"ServiceName": serviceInstance.ServiceOffering.Label}))
return
}
func (cmd *UpdateService) printUpdatingServiceInstanceMessage(serviceInstanceName string) {
cmd.ui.Say(T("Updating service instance {{.ServiceName}} as {{.UserName}}...",
map[string]interface{}{
"ServiceName": terminal.EntityNameColor(serviceInstanceName),
"UserName": terminal.EntityNameColor(cmd.config.Username()),
}))
}
func printSuccessMessageForServiceInstance(serviceInstanceName string, serviceRepo api.ServiceRepository, ui terminal.UI) error {
instance, apiErr := serviceRepo.FindInstanceByName(serviceInstanceName)
if apiErr != nil {
return apiErr
}
if instance.ServiceInstanceFields.LastOperation.State == "in progress" {
ui.Ok()
ui.Say("")
ui.Say(T("{{.State}} in progress. Use '{{.ServicesCommand}}' or '{{.ServiceCommand}}' to check operation status.",
map[string]interface{}{
"State": strings.Title(instance.ServiceInstanceFields.LastOperation.Type),
"ServicesCommand": terminal.CommandColor("cf services"),
"ServiceCommand": terminal.CommandColor(fmt.Sprintf("cf service %s", serviceInstanceName)),
}))
} else {
ui.Ok()
}
return nil
}