docker pull的时候会超时：

Error response from daemon: Get "https://registry-1.docker.io/v2/": net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)

这时可以找一些代理网站，比如 

https://docker.zhai.cm
https://a.ussh.net
https://docker.m.daocloud.io

然后把代理网站名加到镜像前面，就可能可以了，例如：

docker pull docker.zhai.cm/semitechnologies/weaviate:latest

注意，这时运行的命令也要加上代理网站名： 

docker run -d -p 8080:8080 --name weaviate   -e AUTHENTICATION_ANONYMOUS_ACCESS_ENABLED=true   -e PERSISTENCE_DATA_PATH="./data"   docker.zhai.cm/semitechnologies/weaviate:latest