mirror of https://github.com/knative/client.git
116 lines
3.4 KiB
Go
116 lines
3.4 KiB
Go
// Copyright © 2019 The Knative Authors
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package trigger
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import (
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"errors"
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"fmt"
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"github.com/spf13/cobra"
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duckv1 "knative.dev/pkg/apis/duck/v1"
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client_v1alpha1 "knative.dev/client/pkg/eventing/v1alpha1"
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"knative.dev/client/pkg/kn/commands"
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"knative.dev/client/pkg/kn/commands/flags"
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)
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// NewTriggerCreateCommand to create trigger create command
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func NewTriggerCreateCommand(p *commands.KnParams) *cobra.Command {
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var triggerUpdateFlags TriggerUpdateFlags
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var sinkFlags flags.SinkFlags
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cmd := &cobra.Command{
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Use: "create NAME --broker BROKER --sink SINK",
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Short: "Create a trigger",
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Example: `
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# Create a trigger 'mytrigger' to declare a subscription to events from default broker. The subscriber is service 'mysvc'
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kn trigger create mytrigger --broker default --sink svc:mysvc
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# Create a trigger to filter events with attribute 'type=dev.knative.foo'
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kn trigger create mytrigger --broker default --filter type=dev.knative.foo --sink svc:mysvc`,
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RunE: func(cmd *cobra.Command, args []string) (err error) {
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if len(args) != 1 {
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return errors.New("'trigger create' requires the name of the trigger")
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}
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name := args[0]
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namespace, err := p.GetNamespace(cmd)
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if err != nil {
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return err
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}
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dynamicClient, err := p.NewDynamicClient(namespace)
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if err != nil {
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return err
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}
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eventingClient, err := p.NewEventingClient(namespace)
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if err != nil {
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return err
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}
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objectRef, err := sinkFlags.ResolveSink(dynamicClient, namespace)
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if err != nil {
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return fmt.Errorf(
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"cannot create trigger '%s' in namespace '%s' "+
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"because: %s", name, namespace, err)
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}
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filters, err := triggerUpdateFlags.GetFilters()
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if err != nil {
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return fmt.Errorf(
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"cannot create trigger '%s' "+
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"because %s", name, err)
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}
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triggerBuilder := client_v1alpha1.
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NewTriggerBuilder(name).
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Namespace(namespace).
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Broker(triggerUpdateFlags.Broker).
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Filters(filters).
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Subscriber(&duckv1.Destination{
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Ref: objectRef.Ref,
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URI: objectRef.URI,
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})
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// add inject annotation only if flag broker name is `default`
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if triggerUpdateFlags.InjectBroker {
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if triggerUpdateFlags.Broker == "default" {
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triggerBuilder.InjectBroker(true)
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} else {
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return fmt.Errorf("cannot create trigger '%s' in namespace '%s' "+
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"because broker name must be 'default' if '--inject-broker' flag is used", name, namespace)
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}
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}
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err = eventingClient.CreateTrigger(triggerBuilder.Build())
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if err != nil {
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return fmt.Errorf(
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"cannot create trigger '%s' in namespace '%s' "+
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"because: %s", name, namespace, err)
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}
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fmt.Fprintf(cmd.OutOrStdout(), "Trigger '%s' successfully created in namespace '%s'.\n", args[0], namespace)
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return nil
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},
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}
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commands.AddNamespaceFlags(cmd.Flags(), false)
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triggerUpdateFlags.Add(cmd)
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sinkFlags.Add(cmd)
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cmd.MarkFlagRequired("sink")
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return cmd
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}
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