5dac3c2dc0
Update the 'last seen at' timestamp of workers when they: - sign on - sign off - get a task assigned - send a task update - check whether they can keep running their task Note that this commit is necessary to not have the workers time out immediately ;-)
116 lines
3.4 KiB
Go
116 lines
3.4 KiB
Go
package persistence
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// SPDX-License-Identifier: GPL-3.0-or-later
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import (
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"context"
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"fmt"
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"strings"
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"time"
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"gorm.io/gorm"
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"git.blender.org/flamenco/pkg/api"
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)
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type Worker struct {
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gorm.Model
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UUID string `gorm:"type:char(36);default:'';unique;index;default:''"`
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Secret string `gorm:"type:varchar(255);default:''"`
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Name string `gorm:"type:varchar(64);default:''"`
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Address string `gorm:"type:varchar(39);default:'';index"` // 39 = max length of IPv6 address.
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Platform string `gorm:"type:varchar(16);default:''"`
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Software string `gorm:"type:varchar(32);default:''"`
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Status api.WorkerStatus `gorm:"type:varchar(16);default:''"`
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LastSeenAt time.Time `gorm:"index"` // Should contain UTC timestamps.
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StatusRequested api.WorkerStatus `gorm:"type:varchar(16);default:''"`
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LazyStatusRequest bool `gorm:"type:smallint;default:0"`
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SupportedTaskTypes string `gorm:"type:varchar(255);default:''"` // comma-separated list of task types.
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}
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func (w *Worker) Identifier() string {
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return fmt.Sprintf("%s (%s)", w.Name, w.UUID)
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}
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// TaskTypes returns the worker's supported task types as list of strings.
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func (w *Worker) TaskTypes() []string {
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return strings.Split(w.SupportedTaskTypes, ",")
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}
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// StatusChangeRequest stores a requested status change on the Worker.
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// This just updates the Worker instance, but doesn't store the change in the
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// database.
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func (w *Worker) StatusChangeRequest(status api.WorkerStatus, isLazyRequest bool) {
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w.StatusRequested = status
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w.LazyStatusRequest = isLazyRequest
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}
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// StatusChangeClear clears the requested status change of the Worker.
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// This just updates the Worker instance, but doesn't store the change in the
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// database.
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func (w *Worker) StatusChangeClear() {
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w.StatusRequested = ""
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w.LazyStatusRequest = false
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}
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func (db *DB) CreateWorker(ctx context.Context, w *Worker) error {
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if err := db.gormDB.WithContext(ctx).Create(w).Error; err != nil {
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return fmt.Errorf("creating new worker: %w", err)
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}
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return nil
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}
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func (db *DB) FetchWorker(ctx context.Context, uuid string) (*Worker, error) {
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w := Worker{}
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tx := db.gormDB.WithContext(ctx).
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First(&w, "uuid = ?", uuid)
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if tx.Error != nil {
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return nil, workerError(tx.Error, "fetching worker")
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}
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return &w, nil
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}
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func (db *DB) FetchWorkers(ctx context.Context) ([]*Worker, error) {
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workers := make([]*Worker, 0)
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tx := db.gormDB.WithContext(ctx).Model(&Worker{}).Scan(&workers)
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if tx.Error != nil {
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return nil, workerError(tx.Error, "fetching all workers")
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}
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return workers, nil
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}
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func (db *DB) SaveWorkerStatus(ctx context.Context, w *Worker) error {
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err := db.gormDB.WithContext(ctx).
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Model(w).
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Select("status", "status_requested").
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Updates(Worker{
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Status: w.Status,
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StatusRequested: w.StatusRequested,
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}).Error
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if err != nil {
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return fmt.Errorf("saving worker: %w", err)
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}
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return nil
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}
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func (db *DB) SaveWorker(ctx context.Context, w *Worker) error {
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if err := db.gormDB.WithContext(ctx).Save(w).Error; err != nil {
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return fmt.Errorf("saving worker: %w", err)
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}
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return nil
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}
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// WorkerSeen marks the worker as 'seen' by this Manager. This is used for timeout detection.
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func (db *DB) WorkerSeen(ctx context.Context, w *Worker) error {
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tx := db.gormDB.WithContext(ctx).
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Model(w).
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Updates(Worker{LastSeenAt: db.gormDB.NowFunc()})
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if err := tx.Error; err != nil {
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return workerError(err, "saving worker 'last seen at'")
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}
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return nil
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}
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