144 lines
3.6 KiB
Go
144 lines
3.6 KiB
Go
/*
|
|
Copyright 2019 The Fission Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package timetrigger
|
|
|
|
import (
|
|
"fmt"
|
|
"time"
|
|
|
|
"github.com/pkg/errors"
|
|
"github.com/robfig/cron"
|
|
uuid "github.com/satori/go.uuid"
|
|
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
|
|
|
fv1 "github.com/fission/fission/pkg/apis/fission.io/v1"
|
|
"github.com/fission/fission/pkg/controller/client"
|
|
"github.com/fission/fission/pkg/fission-cli/cliwrapper/cli"
|
|
"github.com/fission/fission/pkg/fission-cli/cmd"
|
|
"github.com/fission/fission/pkg/fission-cli/cmd/spec"
|
|
)
|
|
|
|
type CreateSubCommand struct {
|
|
client *client.Client
|
|
trigger *fv1.TimeTrigger
|
|
}
|
|
|
|
func Create(flags cli.Input) error {
|
|
opts := CreateSubCommand{
|
|
client: cmd.GetServer(flags),
|
|
}
|
|
return opts.do(flags)
|
|
}
|
|
|
|
func (opts *CreateSubCommand) do(flags cli.Input) error {
|
|
err := opts.complete(flags)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return opts.run(flags)
|
|
}
|
|
|
|
func (opts *CreateSubCommand) complete(flags cli.Input) error {
|
|
name := flags.String("name")
|
|
if len(name) == 0 {
|
|
name = uuid.NewV4().String()
|
|
}
|
|
|
|
fnName := flags.String("function")
|
|
if len(fnName) == 0 {
|
|
return errors.New("Need a function name to create a trigger, use --function")
|
|
}
|
|
|
|
fnNamespace := flags.String("fnNamespace")
|
|
|
|
cronSpec := flags.String("cron")
|
|
if len(cronSpec) == 0 {
|
|
return errors.New("Need a cron spec like '0 30 * * * *', '@every 1h30m', or '@hourly'; use --cron")
|
|
}
|
|
|
|
opts.trigger = &fv1.TimeTrigger{
|
|
Metadata: metav1.ObjectMeta{
|
|
Name: name,
|
|
Namespace: fnNamespace,
|
|
},
|
|
Spec: fv1.TimeTriggerSpec{
|
|
Cron: cronSpec,
|
|
FunctionReference: fv1.FunctionReference{
|
|
Type: fv1.FunctionReferenceTypeFunctionName,
|
|
Name: fnName,
|
|
},
|
|
},
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (opts *CreateSubCommand) run(flags cli.Input) error {
|
|
// if we're writing a spec, don't call the API
|
|
if flags.Bool("spec") {
|
|
specFile := fmt.Sprintf("timetrigger-%v.yaml", opts.trigger.Metadata.Name)
|
|
err := spec.SpecSave(*opts.trigger, specFile)
|
|
if err != nil {
|
|
return errors.Wrap(err, "error creating time trigger spec")
|
|
}
|
|
return nil
|
|
}
|
|
|
|
_, err := opts.client.TimeTriggerCreate(opts.trigger)
|
|
if err != nil {
|
|
return errors.Wrap(err, "error creating Time trigger")
|
|
}
|
|
|
|
fmt.Printf("trigger '%v' created\n", opts.trigger.Metadata.Name)
|
|
|
|
t, err := getAPITimeInfo(opts.client)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
err = getCronNextNActivationTime(opts.trigger.Spec.Cron, t, 1)
|
|
if err != nil {
|
|
return errors.Wrap(err, "error passing cron spec examination")
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func getAPITimeInfo(client *client.Client) (time.Time, error) {
|
|
serverInfo, err := client.ServerInfo()
|
|
if err != nil {
|
|
return time.Time{}, errors.Errorf("Error syncing server time information: %v", err)
|
|
}
|
|
return serverInfo.ServerTime.CurrentTime, nil
|
|
}
|
|
|
|
func getCronNextNActivationTime(cronSpec string, serverTime time.Time, round int) error {
|
|
sched, err := cron.Parse(cronSpec)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
fmt.Printf("Current Server Time: \t%v\n", serverTime.Format(time.RFC3339))
|
|
|
|
for i := 0; i < round; i++ {
|
|
serverTime = sched.Next(serverTime)
|
|
fmt.Printf("Next %v invocation: \t%v\n", i+1, serverTime.Format(time.RFC3339))
|
|
}
|
|
|
|
return nil
|
|
}
|