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probe.go
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probe.go
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// Copyright 2018 Istio 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 cmd
import (
"github.com/spf13/cobra"
"istio.io/istio/mixer/cmd/shared"
"istio.io/istio/pkg/log"
"istio.io/istio/pkg/probe"
)
func probeCmd(printf, fatalf shared.FormatFn) *cobra.Command {
logOptions := log.DefaultOptions()
probeOptions := &probe.Options{}
cmd := &cobra.Command{
Use: "probe",
Short: "Check the liveness or readiness of a locally-running server",
Run: func(cmd *cobra.Command, args []string) {
if !probeOptions.IsValid() {
fatalf("Some options are not valid")
}
if err := probe.NewFileClient(probeOptions).GetStatus(); err != nil {
fatalf("Fail on inspecting path %s: %v", probeOptions.Path, err)
}
printf("OK")
},
}
logOptions.AttachCobraFlags(cmd)
cmd.PersistentFlags().StringVar(&probeOptions.Path, "probe-path", "", "Path of the file for checking the availability.")
cmd.PersistentFlags().DurationVar(&probeOptions.UpdateInterval, "interval", 0, "Duration used for checking the target file's last modified time.")
return cmd
}