写在前面：
如果有一定部署能力可以直接去halo官网查看文档执行部署。
本教程我是用docker部署的。
官方docker部署文档

version: "3"

services:
  halo:
    image: halohub/halo:2
    container_name: halo
    restart: on-failure:3
    depends_on:
      halodb:
        condition: service_healthy
    networks:
      halo_network:
    volumes:
      - ./halo:/root/.halo2
    ports:
      - "8090:8090"
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:8090/actuator/health/readiness"]
      interval: 30s
      timeout: 5s
      retries: 5
      start_period: 30s
    command:
      - --spring.r2dbc.url=r2dbc:pool:mysql://halodb:3306/halo
      - --spring.r2dbc.username=root
      # MySQL 的密码，请保证与下方 MYSQL_ROOT_PASSWORD 的变量值一致。
      - --spring.r2dbc.password=xxxxxxxxxxxxxxxxxxx
      - --spring.sql.init.platform=mysql
      # 外部访问地址，请根据实际需要修改
      - --halo.external-url=xxxxxxxxxxxxxxxxxxxxxxxxxx

  halodb:
    image: mysql:8.0.35
    container_name: halodb
    restart: on-failure:3
    networks:
      halo_network:
    command: 
      - --default-authentication-plugin=caching_sha2_password
      - --character-set-server=utf8mb4
      - --collation-server=utf8mb4_general_ci
      - --explicit_defaults_for_timestamp=true
    volumes:
      - ./mysql:/var/lib/mysql
      - ./mysqlBackup:/data/mysqlBackup
    ports:
      - "3306:3306"
    healthcheck:
      test: ["CMD", "mysqladmin", "ping", "-h", "127.0.0.1", "--silent"]
      interval: 3s
      retries: 5
      start_period: 30s
    environment:
      # 请修改此密码，并对应修改上方 Halo 服务的 SPRING_R2DBC_PASSWORD 变量值
      - MYSQL_ROOT_PASSWORD=xxxxxxxxxxxxxxxxx
      - MYSQL_DATABASE=halo