123 lines
3.2 KiB
Go
123 lines
3.2 KiB
Go
/*
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Copyright 2019 The Fission Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package kubewatch
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import (
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"fmt"
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"github.com/pkg/errors"
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uuid "github.com/satori/go.uuid"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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fv1 "github.com/fission/fission/pkg/apis/fission.io/v1"
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"github.com/fission/fission/pkg/controller/client"
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"github.com/fission/fission/pkg/fission-cli/cliwrapper/cli"
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"github.com/fission/fission/pkg/fission-cli/cmd"
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"github.com/fission/fission/pkg/fission-cli/cmd/spec"
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"github.com/fission/fission/pkg/fission-cli/log"
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)
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type CreateSubCommand struct {
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client *client.Client
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watcher *fv1.KubernetesWatchTrigger
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}
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func Create(flags cli.Input) error {
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opts := CreateSubCommand{
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client: cmd.GetServer(flags),
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}
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return opts.do(flags)
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}
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func (opts *CreateSubCommand) do(flags cli.Input) error {
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err := opts.complete(flags)
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if err != nil {
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return err
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}
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return opts.run(flags)
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}
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func (opts *CreateSubCommand) complete(flags cli.Input) error {
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fnName := flags.String("function")
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if len(fnName) == 0 {
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log.Fatal("Need a function name to create a watch, use --function")
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}
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fnNamespace := flags.String("fnNamespace")
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namespace := flags.String("ns")
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if len(namespace) == 0 {
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fmt.Println("Watch 'default' namespace. Use --ns <namespace> to override.")
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namespace = "default"
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}
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objType := flags.String("type")
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if len(objType) == 0 {
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fmt.Println("Object type unspecified, will watch pods. Use --type <type> to override.")
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objType = "pod"
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}
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labels := flags.String("labels")
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// empty 'labels' selects everything
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if len(labels) == 0 {
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fmt.Printf("Watching all objects of type '%v', use --labels to refine selection.\n", objType)
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} else {
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// TODO
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fmt.Printf("Label selector not implemented, watching all objects")
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}
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// automatically name watches
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watchName := uuid.NewV4().String()
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opts.watcher = &fv1.KubernetesWatchTrigger{
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Metadata: metav1.ObjectMeta{
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Name: watchName,
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Namespace: fnNamespace,
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},
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Spec: fv1.KubernetesWatchTriggerSpec{
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Namespace: namespace,
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Type: objType,
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//LabelSelector: labels,
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FunctionReference: fv1.FunctionReference{
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Name: fnName,
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Type: fv1.FunctionReferenceTypeFunctionName,
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},
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},
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}
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return nil
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}
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func (opts *CreateSubCommand) run(flags cli.Input) error {
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// if we're writing a spec, don't call the API
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if flags.Bool("spec") {
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specFile := fmt.Sprintf("kubewatch-%v.yaml", opts.watcher.Metadata.Name)
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err := spec.SpecSave(*opts.watcher, specFile)
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if err != nil {
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return errors.Wrap(err, "error creating kubewatch spec")
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}
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return nil
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}
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_, err := opts.client.WatchCreate(opts.watcher)
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if err != nil {
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return errors.Wrap(err, "error creating kubewatch")
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}
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fmt.Printf("kubewatch '%v' created\n", opts.watcher.Metadata.Name)
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return nil
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}
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