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|
package flagparser
import (
"errors"
"time"
"github.com/docker/swarmkit/api"
"github.com/spf13/pflag"
)
func parseUpdate(flags *pflag.FlagSet, spec *api.ServiceSpec) error {
if flags.Changed("update-parallelism") {
parallelism, err := flags.GetUint64("update-parallelism")
if err != nil {
return err
}
if spec.Update == nil {
spec.Update = &api.UpdateConfig{}
}
spec.Update.Parallelism = parallelism
}
if flags.Changed("update-delay") {
delay, err := flags.GetString("update-delay")
if err != nil {
return err
}
delayDuration, err := time.ParseDuration(delay)
if err != nil {
return err
}
if spec.Update == nil {
spec.Update = &api.UpdateConfig{}
}
spec.Update.Delay = delayDuration
}
if flags.Changed("update-on-failure") {
if spec.Update == nil {
spec.Update = &api.UpdateConfig{}
}
action, err := flags.GetString("update-on-failure")
if err != nil {
return err
}
switch action {
case "pause":
spec.Update.FailureAction = api.UpdateConfig_PAUSE
case "continue":
spec.Update.FailureAction = api.UpdateConfig_CONTINUE
case "rollback":
spec.Update.FailureAction = api.UpdateConfig_ROLLBACK
default:
return errors.New("--update-on-failure value must be pause or continue")
}
}
if flags.Changed("update-order") {
if spec.Update == nil {
spec.Update = &api.UpdateConfig{}
}
order, err := flags.GetString("update-order")
if err != nil {
return err
}
switch order {
case "stop-first":
spec.Update.Order = api.UpdateConfig_STOP_FIRST
case "start-first":
spec.Update.Order = api.UpdateConfig_START_FIRST
default:
return errors.New("--update-order value must be stop-first or start-first")
}
}
if flags.Changed("rollback-parallelism") {
parallelism, err := flags.GetUint64("rollback-parallelism")
if err != nil {
return err
}
if spec.Rollback == nil {
spec.Rollback = &api.UpdateConfig{}
}
spec.Rollback.Parallelism = parallelism
}
if flags.Changed("rollback-delay") {
delay, err := flags.GetString("rollback-delay")
if err != nil {
return err
}
delayDuration, err := time.ParseDuration(delay)
if err != nil {
return err
}
if spec.Rollback == nil {
spec.Rollback = &api.UpdateConfig{}
}
spec.Rollback.Delay = delayDuration
}
if flags.Changed("rollback-on-failure") {
if spec.Rollback == nil {
spec.Rollback = &api.UpdateConfig{}
}
action, err := flags.GetString("rollback-on-failure")
if err != nil {
return err
}
switch action {
case "pause":
spec.Rollback.FailureAction = api.UpdateConfig_PAUSE
case "continue":
spec.Rollback.FailureAction = api.UpdateConfig_CONTINUE
default:
return errors.New("--rollback-on-failure value must be pause or continue")
}
}
if flags.Changed("rollback-order") {
if spec.Rollback == nil {
spec.Rollback = &api.UpdateConfig{}
}
order, err := flags.GetString("rollback-order")
if err != nil {
return err
}
switch order {
case "stop-first":
spec.Rollback.Order = api.UpdateConfig_STOP_FIRST
case "start-first":
spec.Rollback.Order = api.UpdateConfig_START_FIRST
default:
return errors.New("--rollback-order value must be stop-first or start-first")
}
}
return nil
}
|
