| // Copyright 2022 Google LLC |
| // |
| // 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 updateengine |
| |
| import ( |
| "bytes" |
| "fmt" |
| "github.com/golang/glog" |
| "os/exec" |
| ) |
| |
| // UpdateEngineStatus is used to get the status of update engine if auto updates |
| // are enabled in the instance. |
| func UpdateEngineStatus(updateEngineCmd string) ([]byte, error) { |
| cmd := exec.Command(updateEngineCmd, "--status") |
| var stdout, stderr bytes.Buffer |
| cmd.Stdout = &stdout |
| cmd.Stderr = &stderr |
| |
| if err := cmd.Run(); err != nil { |
| return nil, fmt.Errorf("unable to get update-engine status: %s", err) |
| } |
| |
| if stderr.String() != "" { |
| glog.Errorf("error from update_engine_client: %v", stderr.String()) |
| } |
| |
| return stdout.Bytes(), nil |
| } |