mirror of https://github.com/knative/client.git
117 lines
3.3 KiB
Go
117 lines
3.3 KiB
Go
/*
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Copyright 2020 The Knative 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 subscription
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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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"knative.dev/client/pkg/commands"
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"knative.dev/client/pkg/commands/flags"
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knerrors "knative.dev/client/pkg/errors"
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knflags "knative.dev/client/pkg/flags"
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knmessagingv1 "knative.dev/client/pkg/messaging/v1"
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)
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// NewSubscriptionCreateCommand to create event subscriptions
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func NewSubscriptionCreateCommand(p *commands.KnParams) *cobra.Command {
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var (
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crefFlag knflags.ChannelRef
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subscriberFlag, replyFlag, dlsFlag flags.SinkFlags
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)
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cmd := &cobra.Command{
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Use: "create NAME",
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Short: "Create a subscription",
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Example: `
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# Create a subscription 'sub0' from InMemoryChannel 'pipe0' to a subscriber ksvc 'receiver'
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kn subscription create sub0 --channel imcv1beta1:pipe0 --sink ksvc:receiver
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# Create a subscription 'sub1' from KafkaChannel 'k1' to ksvc 'mirror', reply to a broker 'nest' and DeadLetterSink to a ksvc 'bucket'
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kn subscription create sub1 --channel messaging.knative.dev:v1beta1:KafkaChannel:k1 --sink mirror --sink-reply broker:nest --sink-dead-letter bucket`,
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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("'kn subscription create' requires the subscription name given as single argument")
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}
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name := args[0]
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if crefFlag.Cref == "" {
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return errors.New("'kn subscription create' requires the channel reference provided with --channel flag")
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}
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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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client, err := newSubscriptionClient(p, cmd)
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if err != nil {
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return err
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}
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sb := knmessagingv1.NewSubscriptionBuilder(name)
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cref, err := crefFlag.Parse()
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if err != nil {
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return err
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}
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sb.Channel(cref)
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sub, err := subscriberFlag.ResolveSink(cmd.Context(), dynamicClient, namespace)
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if err != nil {
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return err
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}
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sb.Subscriber(sub)
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rep, err := replyFlag.ResolveSink(cmd.Context(), dynamicClient, namespace)
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if err != nil {
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return err
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}
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sb.Reply(rep)
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ds, err := dlsFlag.ResolveSink(cmd.Context(), dynamicClient, namespace)
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if err != nil {
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return err
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}
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sb.DeadLetterSink(ds)
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err = client.CreateSubscription(cmd.Context(), sb.Build())
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if err != nil {
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return knerrors.GetError(err)
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}
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fmt.Fprintf(cmd.OutOrStdout(), "Subscription '%s' created in namespace '%s'.\n", name, 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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crefFlag.Add(cmd.Flags())
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// add subscriber flag as `--sink`
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subscriberFlag.Add(cmd)
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replyFlag.AddWithFlagName(cmd, "sink-reply", "")
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dlsFlag.AddWithFlagName(cmd, "sink-dead-letter", "")
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return cmd
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}
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