镜像的导入和导出
1、批量打包镜像
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
docker images --format "{{.ID}}:{{.Repository}}" docker inspect --format='{{index .RepoTags 0}}' d2d4688fcebe redis:alpine
2、导入镜像:
docker load -i k8s-master.tar
3、批量修改images的原有库上传到新库
------------------------------------------------------------------ #!/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 ${new_img} done ----------------------------------------------------------------
4、批量save images镜像
#!/bin/bash #Output the information of images to images.txt sudo docker image ls >images.txt #Get the number of images according to the total of content's rows N=$(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 $shortname is saved successfully! done #Delete file rm images.txt ---------------------------------------------
5、批量pull harbor库中的镜像
#curl -X GET --header 'Accept: application/json' 'https://harbor.cetccloud.com/api/search?q=amd64' 目的是获取amd64的project_id=多少,替换到脚本里面 amd64可以换harbor里其他仓库名 #!/bin/bash URL="https://harbor.cetccloud.com" IP="harbor.cetccloud.com" USER="deploy" PASS="Wg7FPtHbAB" REPOS=$(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
#!/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 ${image} done
7、备份kolla的镜像
------------------------------------------------------------------- #!/bin/bash LIST=" " #可在外面执行脚本的时候带上参数 TXT=/root/tmp.txt BAKDIR=/usr/local/bak LOGDIR=/usr/local/bak/log LOGFILE=$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
docker rmi `docker images -q | awk '/^<none>/ { print $3 }'` docker rmi --force `docker images | grep doss-api | awk '{print $3}'` //其中doss-api为关键字
9、恢复备份镜像到registry
#!/bin/bash # Docker registry address DOCKER_REGISTRY=${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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