arugal commented on issue #6230:
URL: https://github.com/apache/skywalking/issues/6230#issuecomment-762792484
```yaml
version: '3.8'
services:
oap:
image: apache/skywalking-oap-server:8.3.0-es7
container_name: oap
restart: always
ports:
- 12800:12800
healthcheck:
test: ["CMD-SHELL", "/skywalking/bin/swctl ch"]
interval: 30s
timeout: 10s
retries: 3
start_period: 40s
environment:
SW_STORAGE: h2
SW_HEALTH_CHECKER: default
SW_TELEMETRY: prometheus
SW_PROMETHEUS_FETCHER: default
ui:
image: apache/skywalking-ui:8.3.0
container_name: ui
depends_on:
- oap
links:
- oap
restart: always
ports:
- 8080:8080
environment:
SW_OAP_ADDRESS: oap:12800
```

@ZhouZiHe Did you set the`prometheus-fetcher?
https://github.com/apache/skywalking/blob/master/docs/en/setup/backend/backend-telemetry.md#self-observability
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