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https://github.com/UpHabit/bull_exporter

Prometheus exporter for Bull metrics
https://github.com/UpHabit/bull_exporter

bull hacktoberfest metrics prometheus-exporter queue

Last synced: 11 days ago
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Prometheus exporter for Bull metrics

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# Bull Queue Exporter
**Prometheus exporter for Bull metrics.**















___

## UI
![Grafana Dashboard](./docs/img/grafana-1.png)

## Setup
#### Prometheus
**An existing prometheus server is required to use this project**

To learn more about how to setup promethues and grafana see: https://eksworkshop.com/monitoring/

#### Grafana
The dashboard pictured above is [available to download from grafana](https://grafana.com/grafana/dashboards/10128).
It will work aslong as EXPORTER_STAT_PREFIX is not changed.

## Queue Discovery
Queues are discovered at start up by running `KEYS bull:*:id`
this can also be triggered manually from the `/discover_queues` endpoint
`curl -XPOST localhost:9538/discover_queues`

## Metrics

| Metric | type | description |
|------------------------------|---------|-------------|
| bull_queue_completed | counter | Total number of completed jobs |
| bull_queue_complete_duration | summary | Processing time for completed jobs |
| bull_queue_active | counter | Total number of active jobs (currently being processed) |
| bull_queue_delayed | counter | Total number of jobs that will run in the future |
| bull_queue_failed | counter | Total number of failed jobs |
| bull_queue_waiting | counter | Total number of jobs waiting to be processed |

## Kubernetes Usage

### Environment variables for default docker image

| variable | default | description |
|-----------------------|--------------------------|-------------------------------------------------|
| EXPORTER_REDIS_URL | redis://localhost:6379/0 | Redis uri to connect |
| EXPORTER_PREFIX | bull | prefix for queues |
| EXPORTER_STAT_PREFIX | bull_queue_ | prefix for exported metrics |
| EXPORTER_QUEUES | - | a space separated list of queues to check |
| EXPORTER_AUTODISCOVER | - | set to '0' or 'false' to disable queue discovery|

### Example deployment

see: [k8s-sample.yaml](./docs/k8s-sample.yaml) for more options

```yaml
apiVersion: apps/v1

kind: Deployment
metadata:
name: bull-exporter
labels:
app: bull
role: exporter

spec:
selector:
matchLabels:
app: bull
role: exporter
replicas: 1
template:
metadata:
labels:
app: bull
role: exporter
spec:
containers:
- name: bull-exporter
image: uphabit/bull_exporter:latest
securityContext:
runAsGroup: 65534 # nobody
runAsUser: 65534 # nobody
runAsNonRoot: true
privileged: false
allowPrivilegeEscalation: false
readOnlyRootFilesystem: true
capabilities:
drop:
- all
resources:
requests:
cpu: 100m
memory: 128M
limits:
cpu: 200m
memory: 512M
env:
# space delimited list of queues
- name: EXPORTER_QUEUES
value: "mail job_one video audio"

# find the redis service in the cluster
- name: EXPORTER_REDIS_URL
value: redis://redis:6379/0
---
apiVersion: v1
kind: Service
metadata:
name: bull-exporter
labels:
app: bull
role: exporter
annotations:
prometheus.io/scrape: 'true'
prometheus.io/port: '9538'
spec:
type: ClusterIP
ports:
- name: http
port: 9538
targetPort: 9538
selector:
app: bull
role: exporter

```