client/pkg/commands/service/wait.go

83 lines
2.4 KiB
Go

// Copyright © 2019 The Knative 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 service
import (
"errors"
"fmt"
"time"
"github.com/spf13/cobra"
"knative.dev/client/pkg/commands"
clientservingv1 "knative.dev/client/pkg/serving/v1"
)
var waitExample = `
# Waits on a service 'svc'
kn service wait svc
# Waits on a service 'svc' with a timeout
kn service wait svc --wait-timeout 10
# Waits on a service 'svc' with a timeout and wait window
kn service wait svc --wait-timeout 10 --wait-window 1`
// NewServiceWaitCommand represents 'kn service wait' command
func NewServiceWaitCommand(p *commands.KnParams) *cobra.Command {
var waitFlags commands.WaitFlags
command := &cobra.Command{
Use: "wait NAME",
Short: "Wait for a service to be ready",
Example: waitExample,
RunE: func(cmd *cobra.Command, args []string) (err error) {
if len(args) != 1 {
return errors.New("'service wait' requires the service name given as single argument")
}
namespace, err := p.GetNamespace(cmd)
if err != nil {
return err
}
client, err := newServingClient(p, namespace, "")
if err != nil {
return err
}
name := args[0]
out := cmd.OutOrStdout()
fmt.Fprintf(out, "Waiting for Service '%s' in namespace '%s':\n", args[0], namespace)
fmt.Fprintln(out, "")
wconfig := clientservingv1.WaitConfig{
Timeout: time.Duration(waitFlags.TimeoutInSeconds) * time.Second,
ErrorWindow: time.Duration(waitFlags.ErrorWindowInSeconds) * time.Second,
}
err = waitForService(cmd.Context(), client, name, out, wconfig)
if err != nil {
return err
}
fmt.Fprintln(out, "")
fmt.Fprintf(out, "Service '%s' in namespace '%s' is ready.\n", name, namespace)
return nil
},
}
commands.AddNamespaceFlags(command.Flags(), false)
waitFlags.AddConditionWaitFlags(command, commands.WaitDefaultTimeout, "wait", "service", "ready")
return command
}