docker-compose.yml

version: '3'
services:
  prometheus:
    network_mode: "host"
    image: prom/prometheus
    container_name: prometheus
    restart: always
    ports:
      - "9090:9090"
    volumes:
      - ./prometheus:/etc/prometheus
    command:
      - '--config.file=/etc/prometheus/prometheus.yml'
  grafana:
    network_mode: "host"
    user: 1000:1000
    image: grafana/grafana
    container_name: grafana
    restart: always
    ports:
      - "3000:3000"
    volumes:
      - ./grafana:/var/lib/grafana
  openstack-exporter:
    network_mode: "host"
    # docker run -v "$HOME/.config/openstack/clouds.yml":/etc/openstack/clouds.yaml -it -p 9180:9180 ghcr.io/openstack-exporter/openstack-exporter:latest microstack
    image: ghcr.io/openstack-exporter/openstack-exporter:latest
    container_name: openstack-exporter
    command: microstack
    volumes:
      - /home/ubuntu/.config/openstack/clouds.yaml:/etc/openstack/clouds.yaml
    restart: always
    ports:
      - "9180:9180"
  libvirt-exporter:
    network_mode: "host"
    image: libvirt-exporter-local
    container_name: libvirt-exporter
    volumes:
      - /var/snap/microstack/common/run/libvirt:/var/run/libvirt
    restart: always
    ports:
      - "9177:9177"

prometheus.yml

global:
  scrape_interval:     15s
  evaluation_interval: 15s

rule_files:
  # - "first.rules"
  # - "second.rules"

scrape_configs:
  - job_name: prometheus
    static_configs:
      - targets: ['localhost:9177', 'localhost:9180']

vm-monitoring.service

[Unit]
Description=Monitoring for libvirt and openstack

[Service]

WorkingDirectory=/home/ubuntu/monitor

RemainAfterExit=true
ExecStart=/usr/bin/docker-compose up -d --remove-orphans
ExecStop=/usr/bin/docker-compose down
Type=oneshot

[Install]
WantedBy=multi-user.target

network_mode: host is just a hack here, I think it may not be necessary.