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task.go
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task.go
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/*
* Copyright 2024 The Dragonfly 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 util
import (
"errors"
"fmt"
"strings"
)
const (
clientContentDir = "/var/lib/dragonfly/content"
)
type TaskMetadata struct {
ID string
Sha256 string
}
func CalculateSha256ByTaskID(pods []*PodExec, taskID string) (string, error) {
var sha256sum string
for _, pod := range pods {
contentPath := fmt.Sprintf("%s/%s", clientContentDir, taskID)
if _, err := pod.Command("ls", contentPath).CombinedOutput(); err != nil {
// If the path does not exist, skip this client.
fmt.Printf("path %s does not exist: %s\n", contentPath, err.Error())
continue
}
// Calculate sha256sum of the task content.
out, err := pod.Command("sh", "-c", fmt.Sprintf("sha256sum %s", contentPath)).CombinedOutput()
if err != nil {
return "", fmt.Errorf("calculate sha256sum of %s failed: %s", contentPath, err.Error())
}
fmt.Println("sha256sum: " + string(out))
sha256sum = strings.Split(string(out), " ")[0]
break
}
if sha256sum == "" {
return "", errors.New("can not found sha256sum")
}
return sha256sum, nil
}
func CalculateSha256ByOutput(pods []*PodExec, output string) (string, error) {
var sha256sum string
for _, pod := range pods {
if _, err := pod.Command("ls", output).CombinedOutput(); err != nil {
// If the path does not exist, skip this client.
fmt.Printf("path %s does not exist: %s\n", output, err.Error())
continue
}
// Calculate sha256sum of the output content.
out, err := pod.Command("sh", "-c", fmt.Sprintf("sha256sum %s", output)).CombinedOutput()
if err != nil {
return "", fmt.Errorf("calculate sha256sum of %s failed: %s", output, err.Error())
}
fmt.Println("sha256sum: " + string(out))
sha256sum = strings.Split(string(out), " ")[0]
break
}
if sha256sum == "" {
return "", errors.New("can not found sha256sum")
}
return sha256sum, nil
}