备份还原 本地所有的Docker 镜像并且在另一台机器上还原
备份命令 并且显示进度 backup_docker_images.sh
sudo yum install jqchmod +x backup_docker_images.sh
sudo ./backup_docker_images.sh
#!/bin/bash# 指定备份目录
backup_dir="/app/dockerImageBackup/Images"# 创建备份目录，如果不存在的话
mkdir -p $backup_dir# 获取所有镜像的 ID
image_ids=$(docker images -q)# 计算镜像的总数
total_images=$(echo $image_ids | wc -w)# 初始化进度计数器
current_image=1# 遍历每个镜像
for image_id in $image_ids
do# 获取镜像的所有信息image_info=$(docker inspect $image_id)# 获取镜像的名字和标签image_names=$(echo $image_info | jq -r '.[0].RepoTags | join(",")')# 如果镜像没有名字或标签，尝试从 RepoDigests 获取if [ "$image_names" == "null" ]; thenimage_names=$(echo $image_info | jq -r '.[0].RepoDigests[0]' | cut -d '@' -f1)fi# 使用 ID 作为文件名image_file="$image_id.tar"# 打印开始保存的信息echo "Saving image $current_image of $total_images: $image_file"# 保存镜像到文件docker save $image_id -o "$backup_dir/$image_file"# 保存镜像信息到文件echo $image_info > "$backup_dir/$image_id.json"# 打印完成保存的信息echo "Saved image $current_image of $total_images: $image_file"# 更新进度计数器current_image=$((current_image + 1))
done
还原所有的镜像
tar -czf /path/to/app.tar.gz /app
tar -xzf app.tar.gz -C /app -p
chmod +x load_docker_images.shsudo ./load_docker_images.sh
#!/bin/bash# 指定备份目录
backup_dir="/app/dockerImageBackup/Images"# 遍历备份目录下的所有 .tar 文件
for tar_file in $backup_dir/*.tar
do# 获取镜像的 IDimage_id=$(basename $tar_file .tar)# 打印开始加载的信息echo "Loading image: $image_id"# 加载镜像docker load -i $tar_file# 打印完成加载的信息echo "Loaded image: $image_id"# 获取镜像的详细信息image_info=$(cat "$backup_dir/$image_id.json")# 获取镜像的名字和标签image_names=$(echo $image_info | jq -r '.[0].RepoTags | join(",")')# 如果镜像没有名字或标签，尝试从 RepoDigests 获取if [ -z "$image_names" ]; thenecho "Image names is null, trying to get from RepoDigests..."image_names=$(echo $image_info | jq -r '.[0].RepoDigests[0]' | cut -d '@' -f1)echo "Image names from RepoDigests: $image_names"fi# 使用 docker tag 为镜像添加名字和标签for image_name in $(echo $image_names | tr "," "\n")dodocker tag $image_id $image_nameecho "Tagged image: $image_id as $image_name"done
done
sudo curl -L "https://github.com/docker/compose/releases/download/1.29.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose
docker-compose --version