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#!/bin/env bash
#
# lework
# Docker Hub mirror site speed test.
######################################################################################################
# environment configuration
######################################################################################################
# Colors
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[0;33m'
BLUE='\033[0;36m'
PLAIN='\033[0m'
image_name="library/centos"
image_tag="latest"
declare -A mirrors
mirrors=(
[azure]="http://dockerhub.azk8s.cn"
[tencent]="https://mirror.ccs.tencentyun.com"
[daocloud]="http://f1361db2.m.daocloud.io"
[netease]="http://hub-mirror.c.163.com"
[ustc]="https://docker.mirrors.ustc.edu.cn"
[aliyun]="https://2h3po24q.mirror.aliyuncs.com"
[qiniu]="https://reg-mirror.qiniu.com"
)
######################################################################################################
# function
######################################################################################################
function shutdown() {
tput cnorm # reset cursor
}
function error() {
ps -ef | grep "$0" | awk '{print $2}' | xargs kill -9 '{}' >/dev/null 2>&1
}
trap shutdown EXIT
trap error ERR 2 3
function spinner() {
# make sure we use non-unicode character type locale
# (that way it works for any locale as long as the font supports the characters)
local LC_CTYPE=C
speed_test "$@" &
sleep 1
local pid=$(ps -ef | grep -E '[w]get.*-4O /dev/null -T300' | awk '{print $2}') # Process Id of the previous running command
local spin='-\|/'
local charwidth=1
local i=0
tput civis # cursor invisible
while kill -0 $pid 2>/dev/null; do
local i=$(((i + $charwidth) % ${#spin}))
printf "%s" "${spin:$i:$charwidth}"
echo -en "\033[1D"
sleep .1
done
tput cnorm
wait
}
speed_test() {
local output=$(LANG=C wget ${3:+"--header="}"$3" -4O /dev/null -T300 "$1" 2>&1)
local speed=$(printf '%s' "$output" | awk '/\/dev\/null/ {speed=$3 $4} END {gsub(/\(|\)/,"",speed); print speed}')
local ipaddress=$(printf '%s' "$output" | awk -F'|' '/Connecting to .*\|([^\|]+)\|/ {print $2}'| tail -1)
local time=$(printf '%s' "$output" | awk -F= '/100% / {print $2}')
local size=$(printf '%s' "$output" | awk '/Length:/ {s=$3} END {gsub(/\(|\)/,"",s); print s}')
printf "${YELLOW}%-14s${GREEN}%-20s${BLUE}%-14s${PLAIN}%-20s${RED}%-14s${PLAIN}\n" "$2" "${ipaddress}" "${size}" "${time}" "${speed}"
}
######################################################################################################
# main
######################################################################################################
if [ ! -e '/usr/bin/wget' ]; then
echo "Error: wget command not found. You must be install wget command at first."
exit 1
fi
if [ ! -e '/usr/bin/curl' ]; then
echo "Error: curl command not found. You must be install curl command at first."
exit 1
fi
clear
echo -e "\n\nDocker Hub mirror site speed test"
echo -e "\n[Mirror Site]"
for mirror in ${!mirrors[*]}; do
printf "${PLAIN}%-14s${GREEN}%-20s${PLAIN}\n" ${mirror} ": ${mirrors[$mirror]}"
done
printf "${PLAIN}%-14s${GREEN}%-20s${PLAIN}\n" "docker" ": https://registry-1.docker.io"
echo -e "\n[Test]"
echo -e "Test Image : ${YELLOW}${image_name}:${image_tag}${PLAIN}"
docker_token=$(curl -fsSL "https://auth.docker.io/token?service=registry.docker.io&scope=repository:${image_name}:pull" | awk '-F"' '{print $4}')
image_manifests=$(curl -fsSL -H "Authorization: Bearer ${docker_token}" "https://registry-1.docker.io/v2/${image_name}/manifests/${image_tag}" | awk -F'"' '/"blobSum":/ {print $4}')
image_layer=$(echo $image_manifests | tr ' ' '\n' | sort -u| head -1)
echo -e "Download layer : ${YELLOW}${image_layer}${PLAIN}\n"
printf "%-14s%-20s%-14s%-20s%-14s\n" "Site Name" "IPv4 address" "File Size" "Download Time" "Download Speed"
for mirror in ${!mirrors[*]}; do
if [ "${#image_layer}" == "0" ]; then
image_manifests=$(curl -s "${mirror}/v2/library/${image_name}/manifests/${image_tag}" | awk -F'"' '/"blobSum":/ {print $4}')
image_layer=$( echo $resp | tr ' ' '\n' | sort -u | head -1)
fi
spinner "${mirrors[$mirror]}/v2/${image_name}/blobs/${image_layer}" ${mirror}
done
spinner "https://registry-1.docker.io/v2/${image_name}/blobs/${image_layer}" "docker" "Authorization: Bearer $docker_token"
echo