Prometheus endpoint

[trajano]

💡 The Idea
Provide a /metrics endpoint so we can see the usage in Grafana

🔨 Breaking Feature

[caronc]

Prometheus polls, does it not? should this be basically a /prometheus endpoint that should be added into the Apprise API instead?

[trajano]

Yup prom does polling normally. And your solution sounds good.

[instantdreams]

Recommended apprise-api configuration:

1. Add environment variable:

ENABLE_PROMETHEUS_METRICS=true

2. Restart apprise-api container:

cd [directory of apprise-api compose configuration]
docker compose pull;docker compose down;sleep 4;docker compose up --detach

3. Confirm that metrics are available

   http://[container-ip]:[container-port]/metrics
   

4. Add scraper to prometheus configuration:

  - job_name: 'apprise'
    static_configs:
    - targets: [ '[container-ip]:[container-port]' ]
      labels:
        host: '[hostname]'
        machine: '[machine-name]'

5. Restart prometheus container:

cd [directory of prometheus compose configuration]
docker compose pull;docker compose down;sleep 4;docker compose up --detach

6. Check target health:

   http://[container-ip]:[container-port]/targets
   

7. Develop a Grafana dashboard ;)

[caronc]

Closed as resolved in #188