use follow command, to run a prometheus server by docker container

docker run --name prometheus  -p 9090:9090  -v /etc/prometheus/prometheus.yml:/etc/prometheus/prometheus.yml prom/prometheus

edit the config to find your nodeExporter

scrape_configs:
  - job_name: 'prometheus'
    static_configs:
      - targets: ['localhost:9090']
  # 采集node exporter监控数据
  - job_name: 'node'
    static_configs:
      - targets: ['host.docker.internal:9300']