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Monorepo for Tangled
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Go
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import ( "context" _ "embed" "encoding/json" "fmt" "log/slog" "net/http"
"github.com/go-chi/chi/v5" "tangled.org/core/api/tangled" "tangled.org/core/eventconsumer" "tangled.org/core/eventconsumer/cursor" "tangled.org/core/idresolver" "tangled.org/core/jetstream" "tangled.org/core/log" "tangled.org/core/notifier" "tangled.org/core/rbac" "tangled.org/core/spindle/config" "tangled.org/core/spindle/db" "tangled.org/core/spindle/engine" "tangled.org/core/spindle/engines/nixery" "tangled.org/core/spindle/models" "tangled.org/core/spindle/queue" "tangled.org/core/spindle/secrets" "tangled.org/core/spindle/xrpc" "tangled.org/core/xrpc/serviceauth")
//go:embed motdvar motd []byte
const ( rbacDomain = "thisserver")
type Spindle struct { jc *jetstream.JetstreamClient db *db.DB e *rbac.Enforcer l *slog.Logger n *notifier.Notifier engs map[string]models.Engine jq *queue.Queue cfg *config.Config ks *eventconsumer.Consumer res *idresolver.Resolver vault secrets.Manager}
func Run(ctx context.Context) error { logger := log.FromContext(ctx)
cfg, err := config.Load(ctx) if err != nil { return fmt.Errorf("failed to load config: %w", err) }
d, err := db.Make(cfg.Server.DBPath) if err != nil { return fmt.Errorf("failed to setup db: %w", err) }
e, err := rbac.NewEnforcer(cfg.Server.DBPath) if err != nil { return fmt.Errorf("failed to setup rbac enforcer: %w", err) } e.E.EnableAutoSave(true)
n := notifier.New()
var vault secrets.Manager switch cfg.Server.Secrets.Provider { case "openbao": if cfg.Server.Secrets.OpenBao.ProxyAddr == "" { return fmt.Errorf("openbao proxy address is required when using openbao secrets provider") } vault, err = secrets.NewOpenBaoManager( cfg.Server.Secrets.OpenBao.ProxyAddr, logger, secrets.WithMountPath(cfg.Server.Secrets.OpenBao.Mount), ) if err != nil { return fmt.Errorf("failed to setup openbao secrets provider: %w", err) } logger.Info("using openbao secrets provider", "proxy_address", cfg.Server.Secrets.OpenBao.ProxyAddr, "mount", cfg.Server.Secrets.OpenBao.Mount) case "sqlite", "": vault, err = secrets.NewSQLiteManager(cfg.Server.DBPath, secrets.WithTableName("secrets")) if err != nil { return fmt.Errorf("failed to setup sqlite secrets provider: %w", err) } logger.Info("using sqlite secrets provider", "path", cfg.Server.DBPath) default: return fmt.Errorf("unknown secrets provider: %s", cfg.Server.Secrets.Provider) }
nixeryEng, err := nixery.New(ctx, cfg) if err != nil { return err }
jq := queue.NewQueue(cfg.Server.QueueSize, cfg.Server.MaxJobCount) logger.Info("initialized queue", "queueSize", cfg.Server.QueueSize, "numWorkers", cfg.Server.MaxJobCount)
collections := []string{ tangled.SpindleMemberNSID, tangled.RepoNSID, tangled.RepoCollaboratorNSID, } jc, err := jetstream.NewJetstreamClient(cfg.Server.JetstreamEndpoint, "spindle", collections, nil, log.SubLogger(logger, "jetstream"), d, true, true) if err != nil { return fmt.Errorf("failed to setup jetstream client: %w", err) } jc.AddDid(cfg.Server.Owner)
// Check if the spindle knows about any Dids; dids, err := d.GetAllDids() if err != nil { return fmt.Errorf("failed to get all dids: %w", err) } for _, d := range dids { jc.AddDid(d) }
resolver := idresolver.DefaultResolver()
spindle := Spindle{ jc: jc, e: e, db: d, l: logger, n: &n, engs: map[string]models.Engine{"nixery": nixeryEng}, jq: jq, cfg: cfg, res: resolver, vault: vault, }
err = e.AddSpindle(rbacDomain) if err != nil { return fmt.Errorf("failed to set rbac domain: %w", err) } err = spindle.configureOwner() if err != nil { return err } logger.Info("owner set", "did", cfg.Server.Owner)
// starts a job queue runner in the background jq.Start() defer jq.Stop()
// Stop vault token renewal if it implements Stopper if stopper, ok := vault.(secrets.Stopper); ok { defer stopper.Stop() }
cursorStore, err := cursor.NewSQLiteStore(cfg.Server.DBPath) if err != nil { return fmt.Errorf("failed to setup sqlite3 cursor store: %w", err) }
err = jc.StartJetstream(ctx, spindle.ingest()) if err != nil { return fmt.Errorf("failed to start jetstream consumer: %w", err) }
// for each incoming sh.tangled.pipeline, we execute // spindle.processPipeline, which in turn enqueues the pipeline // job in the above registered queue. ccfg := eventconsumer.NewConsumerConfig() ccfg.Logger = log.SubLogger(logger, "eventconsumer") ccfg.Dev = cfg.Server.Dev ccfg.ProcessFunc = spindle.processPipeline ccfg.CursorStore = cursorStore knownKnots, err := d.Knots() if err != nil { return err } for _, knot := range knownKnots { logger.Info("adding source start", "knot", knot) ccfg.Sources[eventconsumer.NewKnotSource(knot)] = struct{}{} } spindle.ks = eventconsumer.NewConsumer(*ccfg)
go func() { logger.Info("starting knot event consumer") spindle.ks.Start(ctx) }()
logger.Info("starting spindle server", "address", cfg.Server.ListenAddr) logger.Error("server error", "error", http.ListenAndServe(cfg.Server.ListenAddr, spindle.Router()))
return nil}
func (s *Spindle) Router() http.Handler { mux := chi.NewRouter()
mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) { w.Write(motd) }) mux.HandleFunc("/events", s.Events) mux.HandleFunc("/logs/{knot}/{rkey}/{name}", s.Logs)
mux.Mount("/xrpc", s.XrpcRouter()) return mux}
func (s *Spindle) XrpcRouter() http.Handler { serviceAuth := serviceauth.NewServiceAuth(s.l, s.res, s.cfg.Server.Did().String())
l := log.SubLogger(s.l, "xrpc")
x := xrpc.Xrpc{ Logger: l, Db: s.db, Enforcer: s.e, Engines: s.engs, Config: s.cfg, Resolver: s.res, Vault: s.vault, ServiceAuth: serviceAuth, }
return x.Router()}
func (s *Spindle) processPipeline(ctx context.Context, src eventconsumer.Source, msg eventconsumer.Message) error { if msg.Nsid == tangled.PipelineNSID { tpl := tangled.Pipeline{} err := json.Unmarshal(msg.EventJson, &tpl) if err != nil { fmt.Println("error unmarshalling", err) return err }
if tpl.TriggerMetadata == nil { return fmt.Errorf("no trigger metadata found") }
if tpl.TriggerMetadata.Repo == nil { return fmt.Errorf("no repo data found") }
if src.Key() != tpl.TriggerMetadata.Repo.Knot { return fmt.Errorf("repo knot does not match event source: %s != %s", src.Key(), tpl.TriggerMetadata.Repo.Knot) }
// filter by repos _, err = s.db.GetRepo( tpl.TriggerMetadata.Repo.Knot, tpl.TriggerMetadata.Repo.Did, tpl.TriggerMetadata.Repo.Repo, ) if err != nil { return err }
pipelineId := models.PipelineId{ Knot: src.Key(), Rkey: msg.Rkey, }
workflows := make(map[models.Engine][]models.Workflow)
for _, w := range tpl.Workflows { if w != nil { if _, ok := s.engs[w.Engine]; !ok { err = s.db.StatusFailed(models.WorkflowId{ PipelineId: pipelineId, Name: w.Name, }, fmt.Sprintf("unknown engine %#v", w.Engine), -1, s.n) if err != nil { return err }
continue }
eng := s.engs[w.Engine]
if _, ok := workflows[eng]; !ok { workflows[eng] = []models.Workflow{} }
ewf, err := s.engs[w.Engine].InitWorkflow(*w, tpl) if err != nil { return err }
workflows[eng] = append(workflows[eng], *ewf)
err = s.db.StatusPending(models.WorkflowId{ PipelineId: pipelineId, Name: w.Name, }, s.n) if err != nil { return err } } }
ok := s.jq.Enqueue(queue.Job{ Run: func() error { engine.StartWorkflows(log.SubLogger(s.l, "engine"), s.vault, s.cfg, s.db, s.n, ctx, &models.Pipeline{ RepoOwner: tpl.TriggerMetadata.Repo.Did, RepoName: tpl.TriggerMetadata.Repo.Repo, Workflows: workflows, }, pipelineId) return nil }, OnFail: func(jobError error) { s.l.Error("pipeline run failed", "error", jobError) }, }) if ok { s.l.Info("pipeline enqueued successfully", "id", msg.Rkey) } else { s.l.Error("failed to enqueue pipeline: queue is full") } }
return nil}
func (s *Spindle) configureOwner() error { cfgOwner := s.cfg.Server.Owner
existing, err := s.e.GetSpindleUsersByRole("server:owner", rbacDomain) if err != nil { return err }
switch len(existing) { case 0: // no owner configured, continue case 1: // find existing owner existingOwner := existing[0]
// no ownership change, this is okay if existingOwner == s.cfg.Server.Owner { break }
// remove existing owner err = s.e.RemoveSpindleOwner(rbacDomain, existingOwner) if err != nil { return nil } default: return fmt.Errorf("more than one owner in DB, try deleting %q and starting over", s.cfg.Server.DBPath) }
return s.e.AddSpindleOwner(rbacDomain, cfgOwner)}