首先我们拿到一个lxc镜像的链接,咱觉得bfsu的速度就很不错。
https://mirrors.bfsu.edu.cn/lxc-images/images
点进去,顺着目录就能找到rootfs.tar.xz,下载就完了。
本文完,就这么简单。
当然不是啊喂!我们要做到自动获取rootfs链接。
镜像列表:
LXC_MIRROR_MAIN="http://images.linuxcontainers.org"
LXC_MIRROR_BFSU="https://mirrors.bfsu.edu.cn/lxc-images"
LXC_MIRROR_TUNA="https://mirrors.tuna.tsinghua.edu.cn/lxc-images"
LXC_MIRROR_NJU="https://mirror.nju.edu.cn/lxc-images"
LXC_MIRROR_ISCAS="https://mirror.iscas.ac.cn/lxc-images"
function select_mirror() {
case ${MIRROR} in
"bfsu")
export LXC_MIRROR=${LXC_MIRROR_BFSU}
;;
"tuna")
export LXC_MIRROR=${LXC_MIRROR_TUNA}
;;
"nju")
export LXC_MIRROR=${LXC_MIRROR_NJU}
;;
"iscas")
export LXC_MIRROR=${LXC_MIRROR_ISCAS}
;;
"main" | "")
export LXC_MIRROR=${LXC_MIRROR_MAIN}
;;
*)
echo -e "\033[31mUnknow mirror!\033[0m"
exit 1
;;
esac
}
目前咱就搜集了这几个。
index文件:
在镜像的/meta/1.0/index-system位置我们可以找到当前的镜像索引,这个文件长这样:
almalinux;8;amd64;cloud;20240929_23:08;/images/almalinux/8/amd64/cloud/20240929_23:08/
almalinux;8;amd64;default;20240929_23:08;/images/almalinux/8/amd64/default/20240929_23:08/
almalinux;8;arm64;cloud;20240929_23:08;/images/almalinux/8/arm64/cloud/20240929_23:08/
almalinux;8;arm64;default;20240929_23:08;/images/almalinux/8/arm64/default/20240929_23:08/
almalinux;9;amd64;cloud;20240929_23:08;/images/almalinux/9/amd64/cloud/20240929_23:08/
almalinux;9;amd64;default;20240929_23:08;/images/almalinux/9/amd64/default/20240929_23:08/
almalinux;9;arm64;cloud;20240929_23:08;/images/almalinux/9/arm64/cloud/20240929_23:08/
almalinux;9;arm64;default;20240929_23:08;/images/almalinux/9/arm64/default/20240929_23:08/
alpine;3.17;amd64;cloud;20240929_13:00;/images/alpine/3.17/amd64/cloud/20240929_13:00/
alpine;3.17;amd64;default;20240929_13:00;/images/alpine/3.17/amd64/default/20240929_13:00/
alpine;3.17;arm64;cloud;20240929_13:00;/images/alpine/3.17/arm64/cloud/20240929_13:00/
alpine;3.17;arm64;default;20240929_13:00;/images/alpine/3.17/arm64/default/20240929_13:00/
alpine;3.17;armhf;cloud;20240929_13:00;/images/alpine/3.17/armhf/cloud/20240929_13:00/
alpine;3.17;armhf;default;20240929_13:00;/images/alpine/3.17/armhf/default/20240929_13:00/
alpine;3.18;amd64;cloud;20240929_13:00;/images/alpine/3.18/amd64/cloud/20240929_13:00/
可以看到格式非常清晰明了:
os;version;arch;type;time;dir
os;version;arch;type;time;dir
获取cpu架构:
直接从tmoe抄一段就行:
function get_cpu_arch() {
# It will create a global variable CPU_ARCH
# From tmoe
if [[ $(command -v dpkg) && $(command -v apt-get) ]]; then
DPKG_ARCH=$(dpkg --print-architecture)
case ${DPKG_ARCH} in
armel) ARCH_TYPE="armel" ;;
armv7* | armv8l | armhf | arm) ARCH_TYPE="armhf" ;;
aarch64 | arm64* | armv8* | arm*) ARCH_TYPE="arm64" ;;
i*86 | x86) ARCH_TYPE="i386" ;;
x86_64 | amd64) ARCH_TYPE="amd64" ;;
*) ARCH_TYPE=${DPKG_ARCH} ;;
esac
else
UNAME_ARCH=$(uname -m)
case ${UNAME_ARCH} in
armv7* | armv8l) ARCH_TYPE="armhf" ;;
armv[1-6]*) ARCH_TYPE="armel" ;;
aarch64 | armv8* | arm64 | arm*) ARCH_TYPE="arm64" ;;
x86_64 | amd64) ARCH_TYPE="amd64" ;;
i*86 | x86) ARCH_TYPE="i386" ;;
s390*) ARCH_TYPE="s390x" ;;
ppc*) ARCH_TYPE="ppc64el" ;;
mips64) ARCH_TYPE="mips64el" ;;
mips*) ARCH_TYPE="mipsel" ;;
risc*) ARCH_TYPE="riscv64" ;;
*) ARCH_TYPE=${UNAME_ARCH} ;;
esac
fi
export CPU_ARCH=${ARCH_TYPE}
}
获取镜像:
需要设置好LXC_MIRROR,DISTRO,VERSION,CPU_ARCH这三个变量,
PATH=$(curl -sL "${LXC_MIRROR}/meta/1.0/index-system" | grep ${DISTRO} | grep ${VERSION} | grep ${CPU_ARCH} | grep -v cloud | tail -n 1 | cut -d ";" -f 6)
echo ${LXC_MIRROR}${PATH}rootfs.tar.xz
这样就可以获取到rootfs的链接了,还是相当简单的。
搜索镜像:
列出所有镜像:
function list_distros() {
# It will print the distro name if any version of distro is available for current ${CPU_ARCH}
# $MIRROR and $CPU_ARCH are defined at main()
if [[ ${CPU_ARCH} == "" ]]; then
get_cpu_arch
fi
export MIRROR=${MIRROR}
select_mirror
for i in $(curl -sL ${LXC_MIRROR}/meta/1.0/index-system | grep ${CPU_ARCH} | grep -v cloud | cut -d ";" -f 1 | uniq); do
echo -e "[${CPU_ARCH}] $i"
done
}
搜索镜像版本号:
function list_distro_version() {
# If the version of the distro is available, print it
# $MIRROR, $DISTRO and $CPU_ARCH are defined at main()
if [[ ${DISTRO} == "" ]]; then
echo -e "\033[31mOS distro not set.\033[0m"
exit 1
fi
if [[ ${CPU_ARCH} == "" ]]; then
get_cpu_arch
fi
export MIRROR=${MIRROR}
select_mirror
if [[ $(curl -sL "${LXC_MIRROR}/meta/1.0/index-system" | grep ${DISTRO} | grep ${CPU_ARCH}) == "" ]]; then
echo -e "\033[31mCould not found image for current cpu architecture.\033[0m"
exit 1
fi
for i in $(curl -sL "${LXC_MIRROR}/meta/1.0/index-system" | grep ${DISTRO} | grep ${CPU_ARCH} | grep -v cloud | cut -d ";" -f 1,2); do
echo -e "[${CPU_ARCH}] $(echo $i | cut -d ";" -f 1) : $(echo $i | cut -d ";" -f 2)"
done
}
后记:
没有后记喵!散会!
标签:LXC,Lxc,cloud,MIRROR,images,镜像,ARCH,20240929,rootfs From: https://www.cnblogs.com/Moe-hacker/p/18520403