linux镜像源修改为国内阿里云_linux set registry to aliyi

Ubuntu

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://mirrors.aliyun.com/ubuntu bionic main restricted
# deb-src http://mirrors.aliyun.com/ubuntu bionic main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb http://mirrors.aliyun.com/ubuntu bionic-updates main restricted
# deb-src http://mirrors.aliyun.com/ubuntu bionic-updates main restricted

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates fr
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