Docker 镜像批量导入导出脚本

#导出全部的镜像；
sh export-img.sh
#导出部分镜像
LIST=“ d235b 201c7a  201c7a”
sh export-img.sh
注意：LIST赋值Docker Images ID ,多个镜像ID通过空格隔离；执行脚本是只会导出定义ID的镜像

LIST=""
TXT=/root/tmp.txt
BAKDIR=/usr/local/bak
LOGDIR=/usr/local/bak/log
LOGFILE=$LOGDIR/bak.`date +%Y%m%d`.log

[ ! -d $BAKDIR ] && mkdir -p $BAKDIR
[ ! -d $LOGDIR ] && mkdir -p $LOGDIR

if [ -n "$LIST" ]
then
        for list in $LIST
        do
                RESLIST=`docker images |grep $list | awk '{print $1}'`
                for reslist in $RESLIST
                do
                RESTAG=`docker images |grep "$reslist" |awk '{a=$1":"$2;print a }'`
                BAKNAME=`docker images |grep "$reslist" |awk '{a=$1":"$2;print a }'|sed 's///_/g'`
                /usr/bin/docker save $RESTAG -o $BAKDIR/$BAKNAME.tar  >> $LOGFILE 2>&1
                done
        done
else
        REC=`docker images |awk '{print $1,$2,$3}'|sed 1d >> $TXT`
        RESLIST=`cat $TXT|awk '{print $1}'`
        for reslist in $RESLIST
        do
                RESTAG=`docker images |grep "$reslist" |awk '{a=$1":"$2;print a }'`
                BAKNAME=`docker images |grep "$reslist" |awk '{a=$1":"$2;print a }'|sed 's///_/g'`
                /usr/bin/docker save $RESTAG -o $BAKDIR/$BAKNAME.tar  >> $LOGFILE 2>&1
        done
        /usr/bin/rm -f $TXT
fi

if [ -s $LOGFILE ]
then
        echo -e "33[31mERROR:Images Backup Failed!33[0m"
        echo -e "33[31mPlease View The Log Lile : $LOGFILE33[0m"
else
        /usr/bin/rm -f $LOGFILE
fi

1. 支持传参数导入

# 注意：多个tar文件使用空格分隔;
sh import.sh "nacos.tar redis.tar"

2. 支持脚本定义导入镜像名称

 vi import.sh
 STATE="ImgName1 ImgName2 ImgName3 ...."
 sh import.sh

3. 支持指定目录导入镜像

vi import.sh
TARDIR="/usr/local/bak"
sh import.sh

4. 支持镜像导入前备份当前镜像

# 注意：需要备份时输入字母Y，不区分大小写，不需要备份没有严格的指定，
# 只要不是字母Y都可以作为否定备份；
# 如果同时在脚本中指定导入镜像，又在指定脚本时指定导入镜像名称，
# 默认使用以脚本定义导入镜像名称;
sh import.sh
Whether to backup the current images[y/n]:[y/Y]

#!/bin/sh

STATE=""
RECEIVE=$1
TARDIR="/root"
SUFFIX="*.tar"
LIST=`ls $TARDIR/$SUFFIX`
LOGFILE=$TARDIR/import.error.`date +%Y%m%d`.log
BAKLOGFILE=$TARDIR/bak.`date +%Y%m%d`.log

STATEimport() {
for i in $STATE
do
/usr/bin/docker load -i $i >/dev/null 2>>$LOGFILE
done
}

RECEIVEimport() {
for i in $RECEIVE
do
/usr/bin/docker load -i $i >/dev/null 2>>$LOGFILE
done
}

LISTimport() {
for i in $LIST
do
/usr/bin/docker load -i $i >/dev/null 2>>$LOGFILE
done
}

IMAGESBAK(){
IMGINFO=`docker images |awk '{print $1,$2,$3}'|sed 1d >> $TARDIR/tmp.txt`
RESLIST=`/usr/bin/cat $TARDIR/tmp.txt |awk '{print $1}' `
for i in $RESLIST
do
    RESTAG=`docker images |grep "$i" |awk '{a=$1":"$2;print a }'`
    BAKNAME=`docker images |grep "$i" |awk '{a=$1":"$2;print a }'|sed 's///_/g'`
    /usr/bin/docker save $RESTAG -o $TARDIR/$BAKNAME_`date +%Y%m%d`.tar >/dev/null 2>>$BAKLOGFILE
done
if [ -s $BAKLOGFILE ]
then
    echo -e "33[31mERROR:Images Backup Failed!33[0m"
    echo -e "33[31mPlease View The Log Lile : $BAKLOGFILE33[0m"
else
    /usr/bin/rm -f $BAKLOGFILE
fi
/usr/bin/rm -f $TARDIR/tmp.txt
}

/usr/bin/rm -f $TARDIR/*.log
read -p "Whether to backup the current images[y/n]:" INPUT
if [[ $INPUT = "y" ]] || [[ $INPUT = "Y" ]]
then
    IMAGESBAK
else
    if [[ -n "$RECEIVE" ]] || [[ -n "$STATE" ]]
    then
        if [ -n "$RECEIVE" ]
        then
                RECEIVEimport
        else
                STATEimport
        fi
    else
        LISTimport
    fi
fi

##ERROR Output
if [ -s $LOGFILE ]
then
    echo -e "33[31mERROR:Images import Failed!33[0m"
    echo -e "33[31mPlease View The Log Lile : $LOGFILE33[0m"
else
    /usr/bin/rm -f $LOGFILE
fi