最近在使用window上的docker toolbox
这个docker是基于virtual box虚拟机的+power shell架设的，自带图形管理Kitematic (Alpha)
但是众所周知，docker的官方HUB在国外，慢得1逼，国内的建议使用DAO Cloud的加速服务器对映像服务进行加速,但是因为多了一层VM，使操作docker的时候显得格外繁琐。现分享一点过程与思路：
虚拟机入口：
实际上执行的命令：
实际上运行的命令是：
"C:\Program Files\Git\bin\bash.exe" --login -i "C:\Program Files\Docker Toolbox\start.sh"
看上去像是用了power shell 执行Docker Toolbox的脚本了，那么前者没有价值，现在需要看看start.sh的内容：
#!/bin/bash
trap '[ "$?" -eq 0 ] || read -p "Looks like something went wrong in step ´$STEP´... Press any key to continue..."' EXIT
# TODO: I'm sure this is not very robust. But, it is needed for now to ensure
# that binaries provided by Docker Toolbox over-ride binaries provided by
# Docker for Windows when launching using the Quickstart.
export PATH="/c/Program Files/Docker Toolbox:$PATH"
VM=${DOCKER_MACHINE_NAME-default}
DOCKER_MACHINE=./docker-machine.exe
STEP="Looking for vboxmanage.exe"
if [ ! -z "$VBOX_MSI_INSTALL_PATH" ]; then
VBOXMANAGE="${VBOX_MSI_INSTALL_PATH}VBoxManage.exe"
else
VBOXMANAGE="${VBOX_INSTALL_PATH}VBoxManage.exe"
fi
BLUE='\033[1;34m'
GREEN='\033[0;32m'
NC='\033[0m'
#clear all_proxy if not socks address
if [[ $ALL_PROXY != socks* ]]; then
unset ALL_PROXY
fi
if [[ $all_proxy != socks* ]]; then
unset all_proxy
fi
if [ ! -f "${DOCKER_MACHINE}" ]; then
echo "Docker Machine is not installed. Please re-run the Toolbox Installer and try again."
exit 1
fi
if [ ! -f "${VBOXMANAGE}" ]; then
echo "VirtualBox is not installed. Please re-run the Toolbox Installer and try again."
exit 1
fi
"${VBOXMANAGE}" list vms | grep \""${VM}"\" &> /dev/null
VM_EXISTS_CODE=$?
set -e
STEP="Checking if machine $VM exists"
if [ $VM_EXISTS_CODE -eq 1 ]; then
"${DOCKER_MACHINE}" rm -f "${VM}" &> /dev/null || :
rm -rf ~/.docker/machine/machines/"${VM}"
#set proxy variables if they exists
if [ "${HTTP_PROXY}" ]; then
PROXY_ENV="$PROXY_ENV --engine-env HTTP_PROXY=$HTTP_PROXY"
fi
if [ "${HTTPS_PROXY}" ]; then
PROXY_ENV="$PROXY_ENV --engine-env HTTPS_PROXY=$HTTPS_PROXY"
fi
if [ "${NO_PROXY}" ]; then
PROXY_ENV="$PROXY_ENV --engine-env NO_PROXY=$NO_PROXY"
fi
"${DOCKER_MACHINE}" create -d virtualbox $PROXY_ENV --engine-registry-mirror http://*******.m.daocloud.io "${VM}"
fi
STEP="Checking status on $VM"
VM_STATUS="$(${DOCKER_MACHINE} status ${VM} 2>&1)"
if [ "${VM_STATUS}" != "Running" ]; then
"${DOCKER_MACHINE}" start "${VM}"
yes | "${DOCKER_MACHINE}" regenerate-certs "${VM}"
fi
STEP="Setting env"
eval "$(${DOCKER_MACHINE} env --shell=bash --no-proxy ${VM})"
STEP="Finalize"
clear
cat << EOF
## .
## ## ## ==
## ## ## ## ## ===
/"""""""""""""""""\___/ ===
~~~ {~~ ~~~~ ~~~ ~~~~ ~~~ ~ / ===- ~~~
\______ o __/
\ \ __/
\____\_______/
EOF
echo -e "${BLUE}docker${NC} is configured to use the ${GREEN}${VM}${NC} machine with IP ${GREEN}$(${DOCKER_MACHINE} ip ${VM})${NC}"
echo "For help getting started, check out the docs at https://docs.docker.com"
echo
cd
docker () {
MSYS_NO_PATHCONV=1 docker.exe "$@"
}
export -f docker
if [ $# -eq 0 ]; then
echo "Start interactive shell"
exec "$BASH" --login -i
else
echo "Start shell with command"
exec "$BASH" -c "$*"
fi
如上所述，这个脚本的功能就是：
先检查一下同名的叫做default的虚拟机是否已经在virtualbox里面存在
如果不存在就调用virtualbox的create api 新建一个，同时带上docker运行时候的参数，包含我们要设置的registry mirror
关于这个国内加速的registry mirror URL可以在https://www.daocloud.io/申请，详情不在叙述，再次感谢daocloud为国内docker社区推广和贡献
如上，把你的URL加到上面的create 语句中，docker设施就能生效
值得注意的是，因为这个只在create过程中设置，所以如果同名虚拟机已经存在，就不会再create，新的升值也不会生效。
