122 lines
3.2 KiB
Go
122 lines
3.2 KiB
Go
// Copyright (C) 2018 Storj Labs, Inc.
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// See LICENSE for copying information.
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package audit
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import (
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"context"
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"time"
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"go.uber.org/zap"
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"storj.io/storj/pkg/overlay"
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"storj.io/storj/pkg/pointerdb"
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"storj.io/storj/pkg/provider"
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"storj.io/storj/pkg/transport"
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)
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// Service helps coordinate Cursor and Verifier to run the audit process continuously
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type Service struct {
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log *zap.Logger
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Cursor *Cursor
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Verifier *Verifier
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Reporter reporter
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ticker *time.Ticker
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}
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// Config contains configurable values for audit service
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type Config struct {
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APIKey string `help:"APIKey to access the statdb" default:""`
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SatelliteAddr string `help:"address to contact services on the satellite"`
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MaxRetriesStatDB int `help:"max number of times to attempt updating a statdb batch" default:"3"`
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Interval time.Duration `help:"how frequently segments are audited" default:"30s"`
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}
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// Run runs the repairer with the configured values
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func (c Config) Run(ctx context.Context, server *provider.Provider) (err error) {
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identity := server.Identity()
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pointers := pointerdb.LoadFromContext(ctx)
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if pointers == nil {
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return Error.New("programmer error: pointerdb responsibility unstarted")
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}
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overlay, err := overlay.NewClient(identity, c.SatelliteAddr)
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if err != nil {
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return err
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}
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transport := transport.NewClient(identity)
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log := zap.L()
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service, err := NewService(ctx, log, c.SatelliteAddr, c.Interval, c.MaxRetriesStatDB, pointers, transport, overlay, *identity, c.APIKey)
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if err != nil {
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return err
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}
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go func() {
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err := service.Run(ctx)
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service.log.Error("audit service failed to run:", zap.Error(err))
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}()
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return server.Run(ctx)
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}
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// NewService instantiates a Service with access to a Cursor and Verifier
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func NewService(ctx context.Context, log *zap.Logger, statDBPort string, interval time.Duration, maxRetries int, pointers *pointerdb.Server, transport transport.Client, overlay overlay.Client,
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identity provider.FullIdentity, apiKey string) (service *Service, err error) {
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cursor := NewCursor(pointers)
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verifier := NewVerifier(transport, overlay, identity)
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reporter, err := NewReporter(ctx, statDBPort, maxRetries, apiKey)
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if err != nil {
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return nil, err
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}
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return &Service{
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log: log,
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Cursor: cursor,
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Verifier: verifier,
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Reporter: reporter,
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ticker: time.NewTicker(interval),
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}, nil
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}
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// Run runs auditing service
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func (service *Service) Run(ctx context.Context) (err error) {
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defer mon.Task()(&ctx)(&err)
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service.log.Info("Audit cron is starting up")
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for {
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err := service.process(ctx)
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if err != nil {
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service.log.Error("process", zap.Error(err))
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}
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select {
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case <-service.ticker.C:
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case <-ctx.Done():
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return ctx.Err()
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}
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}
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}
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// process picks a random stripe and verifies correctness
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func (service *Service) process(ctx context.Context) error {
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stripe, err := service.Cursor.NextStripe(ctx)
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if err != nil {
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return err
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}
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if stripe == nil {
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return nil
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}
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verifiedNodes, err := service.Verifier.verify(ctx, stripe)
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if err != nil {
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return err
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}
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// TODO(moby) we need to decide if we want to do something with nodes that the reporter failed to update
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_, err = service.Reporter.RecordAudits(ctx, verifiedNodes)
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if err != nil {
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return err
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}
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return nil
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}
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