使用 Prometheus 和 Grafana 来监测 django 应用

作者： Ju4t

django 应用配置

pip install django-prometheus

settings.py

INSTALLED_APPS = [
   ...
   'django_prometheus',
   ...
]

MIDDLEWARE = [
    'django_prometheus.middleware.PrometheusBeforeMiddleware',
    # All your other middlewares go here, including the default
    # middlewares like SessionMiddleware, CommonMiddleware,
    # CsrfViewmiddleware, SecurityMiddleware, etc.
    'django_prometheus.middleware.PrometheusAfterMiddleware',
]

urls.py

urlpatterns = [
    ...
    path('', include('django_prometheus.urls')),
]

models.py

from django_prometheus.models import ExportModelOperationsMixin

class Article(ExportModelOperationsMixin('article'), models.Model):
    """
    文章
    """
    ...

验证：http://localhost:8000/metrics

更多设置：缓存命中率，模型设置 参考

https://pypi.org/project/django-prometheus/

部署 Prometheus 和 Grafana

version: '2'
services:
    prometheus:
        image: prom/prometheus
        volumes:
           - ./prometheus.yml:/etc/prometheus/prometheus.yml
        command:
           - '--config.file=/etc/prometheus/prometheus.yml'
        ports:
           - 9090:9090
    grafana:
        image: grafana/grafana
        ports:
           - 3000:3000

prometheus.yml

global:
   scrape_interval: 15s
   evaluation_interval: 30s
rule_files:
scrape_configs:
- job_name: django
#  metrics_path: /metrics
  static_configs:
      - targets:
          - 192.168.8.3:8000
        labels:
          app: 'blog'

验证：
- http://localhost:9090/ 搜索 django... 验证是否有相关数据，没有的话检查设置，Docker部署时建议使用IP，而不是localhost
- http://localhost:3000/ 默认账号密码：admin

设置

• 在 Grafana 添加 DataSource，http://192.168.8.3:9090/
• 添加看板：从 https://grafana.com/grafana/dashboards/17658-django/ import 即可。

截图

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