milvus向量数据库安装按照官方教程比较顺利，但他的可视化管理界面attu安装成功却一直连接不上，找了半天发现时版本匹配的问题，现把踩坑记录分享给大家。

环境前提：docker-compse已经安装

1.按照官网下载docker-compose文件

mkdir milvus
cd milvus
wget https://github.com/milvus-io/milvus/releases/download/v2.0.2/milvus-standalone-docker-compose.yml -O docker-compose.yml

2.修改docker-compose文件，添加attu部分

坑1:让attu和milvus在一个docker的network中，否则连接会报，因为他们不在一个docker网络中（docker-compse知识范畴）：

Error: Failed to connect to Milvus: Error: 14 UNAVAILABLE: No
connection establised

修改后的docker-compse.yml如下

version: '3.5'

services:
  etcd:
    container_name: milvus-etcd
    image: quay.io/coreos/etcd:v3.5.0
    environment:
      - ETCD_AUTO_COMPACTION_MODE=revision
      - ETCD_AUTO_COMPACTION_RETENTION=1000
      - ETCD_QUOTA_BACKEND_BYTES=4294967296
    volumes:
      - ${DOCKER_VOLUME_DIRECTORY:-.}/volumes/etcd:/etcd
    command: etcd -advertise-client-urls=http://127.0.0.1:2379 -listen-client-urls http://0.0.0.0:2379 --data-dir /etcd

  minio:
    container_name: milvus-minio
    image: minio/minio:RELEASE.2020-12-03T00-03-10Z
    environment:
      MINIO_ACCESS_KEY: minioadmin
      MINIO_SECRET_KEY: minioadmin
    volumes:
      - ${DOCKER_VOLUME_DIRECTORY:-.}/volumes/minio:/minio_data
    command: minio server /minio_data
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:9000/minio/health/live"]
      interval: 30s
      timeout: 20s
      retries: 3

  standalone:
    container_name: milvus-standalone
    image: milvusdb/milvus:v2.0.2
    command: ["milvus", "run", "standalone"]
    environment:
      ETCD_ENDPOINTS: etcd:2379
      MINIO_ADDRESS: minio:9000
    volumes:
      - ${DOCKER_VOLUME_DIRECTORY:-.}/volumes/milvus:/var/lib/milvus
    ports:
      - "19530:19530"
    depends_on:
      - "etcd"
      - "minio"
  # 增加attu容器，注意版本必须是v2.2.2
  attu:
    container_name: attu
    image: zilliz/attu:v2.2.2
    environment:
      MILVUS_URL: standalone:19530
    ports:
      - "3000:3000"
    depends_on:
      - "standalone"
networks:
  default:
    name: milvus

坑2：我之前用的latest版本的attu镜像，浏览器界面http://localhost:3000点击connect会报如下错误，就是因为attu版本过高导致。

Milvus is not ready yet.

3.在文件夹milvus中执行docker-compose命令

windows环境，linux环境需要加sudo

docker-compse up -d

安装成功后如下图，我用的docker-desktop，否则需要用docker ps 命令查看。

3.http://localhost:3000/ 进入attu登录界面

直接点击connet按钮，成功进入！

完毕，祝大家避坑！！！