镜像的导入和导出

1、批量打包镜像

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1	docker save $(docker images | grep -v REPOSITORY | awk  'BEGIN{OFS=":";ORS="\n"}{print $1,$2}') -o k8s-master.tar

除了awk常用于拼接镜像名和版本号，更快地方法

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docker images --format  "{{.ID}}:{{.Repository}}"   docker inspect --format='{{index .RepoTags 0}}' d2d4688fcebe redis:alpine

2、导入镜像：

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1	docker load -i k8s-master.tar

3、批量修改images的原有库上传到新库

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------------------------------------------------------------------ #!/bin/bash   readonly old_repo=harbor.cetccloud.com/amd64 readonly new_repo=harbor.cetccloud.com/amd64   for image  in $(docker images --format  '{{.Repository}}:{{.Tag}}'); do     name=${image##*/}     new_img=${new_repo}/${name}     echo "Processing ${image} -> ${new_img}"     sudo docker tag ${image} ${new_img}     sudo docker push ${new_img}     sudo docker rmi ${new_img} done ----------------------------------------------------------------

4、批量save images镜像

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#!/bin/bash #Output the information of images to images.txt sudo docker image ls >images.txt #Get the number of images according to the total of content's rows N=$(awk 'END{print NR}' images.txt) echo The total of images is $N #Get names and tags of images for ((i=2; i<=$N; i++))   do     image=$(awk 'NR=="'"$i"'" {print $1}' images.txt)     version=$(awk 'NR=="'"$i"'" {print $2}' images.txt) #Modify the name of files which will be saved in local , otherwise you will be failed to save images.     shortname=`echo $image | sed 's/.*\///g'` #filename is name of the file that will be saved     filename="${shortname}-${version}.tar"     imagename="${image}:${version}"   #Output the value of variable     echo image=$image     echo version=$version     echo filename=$filename     echo imagename=$imagename     echo shortname=$shortname   #Save the image as a local tar file     sudo docker save -o $filename $imagename #Modify the permission of the file     sudo chmod 755 $filename #Output the result!     echo No.$i $shortname is saved successfully！   done #Delete file rm images.txt ---------------------------------------------

5、批量pull harbor库中的镜像

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#curl -X GET --header 'Accept: application/json' 'https://harbor.cetccloud.com/api/search?q=amd64' 目的是获取amd64的project_id=多少，替换到脚本里面 amd64可以换harbor里其他仓库名   #!/bin/bash URL="https://harbor.cetccloud.com" IP="harbor.cetccloud.com" USER="deploy" PASS="Wg7FPtHbAB" REPOS=$(curl -s -X GET --header 'Accept: application/json' "${URL}/api/repositories?project_id=9"|grep "name"|awk -F '"' '{print $4}') for rp in ${REPOS} do   TAGS=$(curl -s -X GET --header 'Accept: application/json' "${URL}/api/repositories/${rp}/tags"|grep \"name\"|awk -F '"' '{print $4}'|sort -r)   a=$(echo ${rp}|awk -F "/" '{print $2}')     for t in ${TAGS}     do         docker pull ${IP}"/"${rp}":"${t}         echo ${IP}"/"${rp}":"${t} >> /opt/docker.tag         docker save ${IP}"/"${rp}":"${t} > /opt/docker/${IP}-${a}-${t}.tar.gz     done     echo "====================" done -------------------------------------------------------------------

6、批量为镜像打tag


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#!/bin/bash   readonly old_repo=192.168.10.15:8012/amd64 readonly new_repo=harbor.cetccloud.com/amd64   for image in $(docker images --format '{{.Repository}}:{{.Tag}}'); do     name=${image##*/}     new_img=${new_repo}/${name}     echo "Processing ${image} -> ${new_img}"     sudo docker tag ${image} ${new_img}     sudo docker rmi ${image} done

7、备份kolla的镜像

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------------------------------------------------------------------- #!/bin/bash LIST=" "  #可在外面执行脚本的时候带上参数 TXT=/root/tmp.txt BAKDIR=/usr/local/bak LOGDIR=/usr/local/bak/log LOGFILE=$LOGDIR/`date +%Y%m%d`.log   [ ! -d $BAKDIR ] && mkdir -p $BAKDIR [ ! -d $LOGDIR ] && mkdir -p $LOGDIR   #此部分为用户自定义备份镜像（即部分备份） if [ ! -n "$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   #全备部分 else         RTI=`docker images |awk '{print $1,$2,$3}'|sed 1d > $TXT` #RTI表示仓库名、tag名、imagesID，sed 1d 表示删除第一行           RESLIST=`cat $TXT|awk '{print $1}'`   #RESLIST表示镜像的名字（包含仓库路径）         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'`                 docker save $RESTAG -o $BAKDIR/$BAKNAME.tar  >> $LOGFILE 2>&1         done         /usr/bin/rm -f $TXT fi

8、按条件删除镜像

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1 2	docker rmi `docker images -q | awk '/^<none>/ { print $3 }'` docker rmi --force `docker images | grep doss-api | awk '{print $3}'`    //其中doss-api为关键字

9、恢复备份镜像到registry

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#!/bin/bash   # Docker registry address DOCKER_REGISTRY=${curr_node_ip}:5000   # Backup file path BACKUP_DIR=/mnt/backup_data/${archive_node}/docker-image   # Sort the directory by name and take the latest directory for date_folder in $(ls -r $BACKUP_DIR | head -1) do     # Traverse the image folder under the date folder     for image_folder in $(ls -t $BACKUP_DIR/$date_folder)     do         # Traverse the tar package under the image folder         for file in $(ls -t $BACKUP_DIR/$date_folder/$image_folder/*.tgz)         do             # Load docker image and get ID             ima=$file             output=$(docker load -i $ima)             loaded_image_prefix="Loaded image: "               if [[ $output =~ $loaded_image_prefix ]]             then                 image_name_tag=${output#$loaded_image_prefix}                 IMAGE_ID=$(docker images --format '{{.ID}}' $image_name_tag)             else                 IMAGE_ID=$(echo $output | awk '{print $3}')             fi               if [ $IMAGE_ID != 'null' ]             then                 # Get tag of docker image                 IMAGE_TAG=$(docker inspect --format='{{index .RepoTags 0}}' $IMAGE_ID)                   # If the image has a tag, then tag and push it                 if [ ! -z "$IMAGE_TAG" ]                 then                     old_name=$IMAGE_TAG                     new_name=""                       # If old_name already contains DOCKER_REGISTRY, then DOCKER_REGISTRY is not added again                     if [[ $old_name == $DOCKER_REGISTRY* ]]; then                         new_name=$old_name                     elif [[ $old_name == $mysqlm_ip:* ]]; then                         new_name=$curr_node_ip:5000/$image_name_tag                     else                         new_name=$DOCKER_REGISTRY/$old_name                     fi                       docker tag $old_name $new_name                     docker push $new_name                     docker rmi $old_name                     docker rmi $new_name                 else                     echo "Image $IMAGE_ID has no tag, skipping."                 fi             else                 echo "Failed to load image from $file"             fi         done     done done   if [ ! -z "$(docker images -q -f dangling=true)" ] then     docker rmi $(docker images -q -f dangling=true) fi

　　

　　

 

 

 

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