修改pip/golang/docker源

# pip
mkdir ~/.pip
cd ~/.pip
touch pip.conf

[root@new-op .pip]# cat  pip.conf
[global]
index-url = https://mirrors.aliyun.com/pypi/simple/

[install]
trusted-host=mirrors.aliyun.com

# go
export GO111MODULE=on
export GOPROXY=https://goproxy.io

# docker
cat > /etc/docker/daemon.json <<-'EOF'
{
    "registry-mirrors": ["https://4y5n34v7.mirror.aliyuncs.com"]
}
EOF