|
| 1 | +package main |
| 2 | + |
| 3 | +import ( |
| 4 | + "encoding/json" |
| 5 | + "fmt" |
| 6 | + "net/http" |
| 7 | + "os" |
| 8 | + "os/exec" |
| 9 | + "path/filepath" |
| 10 | + "time" |
| 11 | +) |
| 12 | + |
| 13 | +// convertModelHandler is the HTTP handler for the /model/convert endpoint. |
| 14 | +// This endpoint is valid only on OSX machines (srv.isOSX == true). |
| 15 | +func (srv *ILabServer) convertModelHandler(w http.ResponseWriter, r *http.Request) { |
| 16 | + srv.log.Info("POST /model/convert called") |
| 17 | + |
| 18 | + // If not OS X, return an error. |
| 19 | + if !srv.isOSX { |
| 20 | + srv.log.Warn("Attempt to use /model/convert on a non-OSX machine") |
| 21 | + http.Error(w, "Model conversion endpoint is available only on OSX", http.StatusForbidden) |
| 22 | + return |
| 23 | + } |
| 24 | + |
| 25 | + var reqBody struct { |
| 26 | + ModelDir string `json:"model_dir"` |
| 27 | + } |
| 28 | + if err := json.NewDecoder(r.Body).Decode(&reqBody); err != nil { |
| 29 | + srv.log.Errorf("Error parsing convert request body: %v", err) |
| 30 | + http.Error(w, "Invalid request body", http.StatusBadRequest) |
| 31 | + return |
| 32 | + } |
| 33 | + |
| 34 | + // Ensure we have a model directory path |
| 35 | + if reqBody.ModelDir == "" { |
| 36 | + srv.log.Info("Missing required parameter: model_dir") |
| 37 | + http.Error(w, "Missing required parameter: model_dir", http.StatusBadRequest) |
| 38 | + return |
| 39 | + } |
| 40 | + |
| 41 | + jobID, err := srv.startConvertJob(reqBody.ModelDir) |
| 42 | + if err != nil { |
| 43 | + srv.log.Errorf("Error starting convert job: %v", err) |
| 44 | + http.Error(w, fmt.Sprintf("Failed to start convert job: %v", err), http.StatusInternalServerError) |
| 45 | + return |
| 46 | + } |
| 47 | + |
| 48 | + w.Header().Set("Content-Type", "application/json") |
| 49 | + _ = json.NewEncoder(w).Encode(map[string]string{"job_id": jobID}) |
| 50 | + srv.log.Infof("POST /model/convert started successfully, job_id: %s", jobID) |
| 51 | +} |
| 52 | + |
| 53 | +// startConvertJob launches "ilab model convert --model-dir=..." |
| 54 | +func (srv *ILabServer) startConvertJob(modelDir string) (string, error) { |
| 55 | + ilabPath := srv.getIlabCommand() |
| 56 | + |
| 57 | + cmdArgs := []string{ |
| 58 | + "model", "convert", |
| 59 | + fmt.Sprintf("--model-dir=%s", modelDir), |
| 60 | + } |
| 61 | + |
| 62 | + // Unique job ID & log file |
| 63 | + jobID := fmt.Sprintf("c-%d", time.Now().UnixNano()) |
| 64 | + logFilePath := filepath.Join("logs", fmt.Sprintf("%s.log", jobID)) |
| 65 | + |
| 66 | + finalCmdString := fmt.Sprintf("[ILAB CONVERT COMMAND] %s %v", ilabPath, cmdArgs) |
| 67 | + srv.log.Info(finalCmdString) |
| 68 | + |
| 69 | + cmd := exec.Command(ilabPath, cmdArgs...) |
| 70 | + if !srv.rhelai { |
| 71 | + cmd.Dir = srv.baseDir |
| 72 | + } |
| 73 | + |
| 74 | + // Log the job |
| 75 | + logFile, err := os.Create(logFilePath) |
| 76 | + if err != nil { |
| 77 | + return "", fmt.Errorf("failed to create log file for convert job: %v", err) |
| 78 | + } |
| 79 | + fmt.Fprintln(logFile, finalCmdString) |
| 80 | + |
| 81 | + cmd.Stdout = logFile |
| 82 | + cmd.Stderr = logFile |
| 83 | + |
| 84 | + srv.log.Infof("Starting ilab convert process with job ID '%s'", jobID) |
| 85 | + if err := cmd.Start(); err != nil { |
| 86 | + logFile.Close() |
| 87 | + srv.log.Errorf("Error starting convert command: %v", err) |
| 88 | + return "", err |
| 89 | + } |
| 90 | + |
| 91 | + // Create DB record for the job |
| 92 | + newJob := &Job{ |
| 93 | + JobID: jobID, |
| 94 | + Cmd: ilabPath, |
| 95 | + Args: cmdArgs, |
| 96 | + Status: "running", |
| 97 | + PID: cmd.Process.Pid, |
| 98 | + LogFile: logFilePath, |
| 99 | + StartTime: time.Now(), |
| 100 | + } |
| 101 | + if err := srv.createJob(newJob); err != nil { |
| 102 | + srv.log.Errorf("Error creating convert job in DB: %v", err) |
| 103 | + } |
| 104 | + |
| 105 | + go func() { |
| 106 | + defer logFile.Close() |
| 107 | + err := cmd.Wait() |
| 108 | + |
| 109 | + newJob.Lock.Lock() |
| 110 | + defer newJob.Lock.Unlock() |
| 111 | + |
| 112 | + if err != nil { |
| 113 | + newJob.Status = "failed" |
| 114 | + srv.log.Infof("Convert job %s failed: %v", newJob.JobID, err) |
| 115 | + } else if cmd.ProcessState.Success() { |
| 116 | + newJob.Status = "finished" |
| 117 | + srv.log.Infof("Convert job %s finished successfully", newJob.JobID) |
| 118 | + } else { |
| 119 | + newJob.Status = "failed" |
| 120 | + srv.log.Infof("Convert job %s failed (unknown reason)", newJob.JobID) |
| 121 | + } |
| 122 | + now := time.Now() |
| 123 | + newJob.EndTime = &now |
| 124 | + _ = srv.updateJob(newJob) |
| 125 | + }() |
| 126 | + |
| 127 | + return jobID, nil |
| 128 | +} |
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