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82 lines
2.6 KiB
82 lines
2.6 KiB
#!/bin/bash
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TAG_PREFIX=
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# 保存镜像的函数
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save() {
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# 如果images目录不存在，则创建它
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if [ ! -d "./images" ]; then
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mkdir images
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fi
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cd images
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# 获取带有指定前缀的镜像列表并保存到文件
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docker images --format "{{.ID}} {{.Repository}}:{{.Tag}} {{.Size}}" | grep "$TAG_PREFIX" > images_list.txt
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# 遍历每条镜像记录
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while read -r line; do
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image_id=$(echo $line | awk '{print $1}')
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# 更安全地处理Repository和Tag，特别是当Tag包含特殊字符时
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image_parts=($(echo $line | awk '{split($0,a," "); print a[2]}' | tr ":" "\n"))
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image_repository=${image_parts[0]}
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image_tag=${image_parts[1]:-${TAG_PREFIX}-latest} # 如果没有Tag，默认给一个值，避免空Tag问题
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image_size=$(echo $line | awk '{print $3}')
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if [[ ! -f "$image_id.tar" ]]; then
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# 确保Tag格式正确，特别处理无Tag情况
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if [ -z "$image_tag" ]; then
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image_load_cmd="$image_repository"
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else
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image_load_cmd="$image_repository:$image_tag"
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fi
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docker save -o "$image_id.tar" "$image_load_cmd" && \
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echo "镜像 ${image_load_cmd} 已保存，大小 $image_size"
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else
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echo "ID为$image_id的镜像已保存，跳过..."
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echo "$image_id $image_repository:$image_tag" >> existing_tags.txt
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fi
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done < images_list.txt
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}
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# 加载镜像的函数
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load() {
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cd images
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# 先加载所有镜像文件
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while read -r line; do
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image_id=$(echo $line | awk '{print $1}')
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if [[ -f "$image_id.tar" ]]; then
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docker load -i $image_id.tar && \
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echo "ID为$image_id的镜像已加载"
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fi
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done < images_list.txt
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# 根据记录恢复所有标签
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while read -r line; do
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image_id=$(echo $line | awk '{print $1}')
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image_repo_tag=$(echo $line | awk '{print $2}')
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if docker images | grep -q $image_id; then
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docker tag $image_id $image_repo_tag && \
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echo "为ID为$image_id的镜像恢复了标签 $image_repo_tag"
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else
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echo "未找到ID为$image_id的镜像进行标签恢复。"
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fi
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done < existing_tags.txt
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}
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# 脚本主逻辑
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if [ -z "$1" ]; then
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echo "用法: image_operation.sh [保存|加载]"
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else
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case $1 in
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保存)
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save
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;;
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加载)
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load
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;;
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*)
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echo "无效操作。请输入 '保存' 或 '加载'。"
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;;
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esac
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fi |