Monorepo for Tangled
spindle/queue: enqueue pipeline jobs
Signed-off-by: Anirudh Oppiliappan <anirudh@tangled.sh>
Anirudh Oppiliappan
(Jun 13, 2025, 11:53 AM +0300)
c3b287b1
7f7d89ac
+70
-13
+37
spindle/queue/queue.go
+37
spindle/queue/queue.go
···
1
+
package queue
2
+
3
+
type Job struct {
4
+
Run func() error
5
+
OnFail func(error)
6
+
}
7
+
8
+
type Queue struct {
9
+
jobs chan Job
10
+
}
11
+
12
+
func NewQueue(size int) *Queue {
13
+
return &Queue{
14
+
jobs: make(chan Job, size),
15
+
}
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+
}
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+
18
+
func (q *Queue) Enqueue(job Job) bool {
19
+
select {
20
+
case q.jobs <- job:
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+
return true
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+
default:
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+
return false
24
+
}
25
+
}
26
+
27
+
func (q *Queue) StartRunner() {
28
+
go func() {
29
+
for job := range q.jobs {
30
+
if err := job.Run(); err != nil {
31
+
if job.OnFail != nil {
32
+
job.OnFail(err)
33
+
}
34
+
}
35
+
}
36
+
}()
37
+
}
+33
-13
spindle/server.go
+33
-13
spindle/server.go
···
1
1
package spindle
2
2
3
3
import (
4
+
"context"
4
5
"encoding/json"
5
6
"fmt"
6
7
"log/slog"
7
8
"net/http"
8
9
9
10
"github.com/go-chi/chi/v5"
10
-
"golang.org/x/net/context"
11
11
"tangled.sh/tangled.sh/core/api/tangled"
12
12
"tangled.sh/tangled.sh/core/jetstream"
13
13
"tangled.sh/tangled.sh/core/knotclient"
···
17
17
"tangled.sh/tangled.sh/core/spindle/config"
18
18
"tangled.sh/tangled.sh/core/spindle/db"
19
19
"tangled.sh/tangled.sh/core/spindle/engine"
20
+
"tangled.sh/tangled.sh/core/spindle/queue"
20
21
)
21
22
22
23
type Spindle struct {
···
26
27
l *slog.Logger
27
28
n *notifier.Notifier
28
29
eng *engine.Engine
30
+
jq *queue.Queue
29
31
}
30
32
31
33
func Run(ctx context.Context) error {
···
58
60
return err
59
61
}
60
62
63
+
jq := queue.NewQueue(100)
64
+
65
+
// starts a job queue runner in the background
66
+
jq.StartRunner()
67
+
61
68
spindle := Spindle{
62
69
jc: jc,
63
70
e: e,
···
65
72
l: logger,
66
73
n: &n,
67
74
eng: eng,
75
+
jq: jq,
68
76
}
69
77
78
+
// for each incoming sh.tangled.pipeline, we execute
79
+
// spindle.processPipeline, which in turn enqueues the pipeline
80
+
// job in the above registered queue.
70
81
go func() {
71
82
logger.Info("starting event consumer")
72
83
knotEventSource := knotclient.NewEventSource("localhost:5555")
···
74
85
ccfg := knotclient.NewConsumerConfig()
75
86
ccfg.Logger = logger
76
87
ccfg.Dev = cfg.Server.Dev
77
-
ccfg.ProcessFunc = spindle.exec
88
+
ccfg.ProcessFunc = spindle.processPipeline
78
89
ccfg.AddEventSource(knotEventSource)
79
90
80
91
ec := knotclient.NewEventConsumer(*ccfg)
···
96
107
return mux
97
108
}
98
109
99
-
func (s *Spindle) exec(ctx context.Context, src knotclient.EventSource, msg knotclient.Message) error {
110
+
func (s *Spindle) processPipeline(ctx context.Context, src knotclient.EventSource, msg knotclient.Message) error {
100
111
if msg.Nsid == tangled.PipelineNSID {
101
112
pipeline := tangled.Pipeline{}
102
113
err := json.Unmarshal(msg.EventJson, &pipeline)
···
105
116
return err
106
117
}
107
118
108
-
// this is a "fake" at uri for now
109
-
pipelineAtUri := fmt.Sprintf("at://%s/did:web:%s/%s", tangled.PipelineNSID, pipeline.TriggerMetadata.Repo.Knot, msg.Rkey)
119
+
ok := s.jq.Enqueue(queue.Job{
120
+
Run: func() error {
121
+
// this is a "fake" at uri for now
122
+
pipelineAtUri := fmt.Sprintf("at://%s/did:web:%s/%s", tangled.PipelineNSID, pipeline.TriggerMetadata.Repo.Knot, msg.Rkey)
110
123
111
-
rkey := TID()
112
-
err = s.eng.SetupPipeline(ctx, &pipeline, pipelineAtUri, rkey)
113
-
if err != nil {
114
-
return err
115
-
}
116
-
err = s.eng.StartWorkflows(ctx, &pipeline, rkey)
117
-
if err != nil {
118
-
return err
124
+
rkey := TID()
125
+
err = s.eng.SetupPipeline(ctx, &pipeline, pipelineAtUri, rkey)
126
+
if err != nil {
127
+
return err
128
+
}
129
+
return s.eng.StartWorkflows(ctx, &pipeline, rkey)
130
+
},
131
+
OnFail: func(error) {
132
+
s.l.Error("pipeline setup failed", "error", err)
133
+
},
134
+
})
135
+
if ok {
136
+
s.l.Info("pipeline enqueued successfully", "id", msg.Rkey)
137
+
} else {
138
+
s.l.Error("failed to enqueue pipeline: queue is full")
119
139
}
120
140
}
121
141