Docker load命令进行镜像恢复与迁移的完整指南

docker load [OPTIONS]

#!/bin/bash
# 灾难恢复脚本
RESTORE_FILE="/backups/docker-prod-$(date +%Y%m%d).tar"
if [ -f "$RESTORE_FILE" ]; then
    docker load -i "$RESTORE_FILE" && \
    echo "成功恢复生产镜像" || \
    echo "恢复失败，检查日志"
fi

# 从压缩文件直接加载
zcat nginx.tar.gz | docker load

# 批量加载目录下所有备份
find /backups -name "*.tar" -exec docker load -i {} \;

# 先验证文件完整性再加载
sha256sum -c nginx.sha256 && docker load -i nginx.tar

# 加密镜像加载
openssl enc -d -aes256 -in nginx.enc | docker load

# 限制加载时的内存使用
docker load -i large.tar --memory 2g

# 加载前检查镜像历史
tar -xf nginx.tar manifest.json -O | jq '.[].RepoTags'

docker system prune -a

sudo systemctl stop docker
sudo rsync -a /var/lib/docker /new/location
sudo ln -s /new/location/docker /var/lib/docker
sudo systemctl start docker

# 对比原始和加载的镜像ID
docker inspect -f '{{.Id}}' original-image
docker inspect -f '{{.Id}}' loaded-image

docker image inspect --format='{{.Os}}/{{.Architecture}}' image-name

cosign verify --key cosign.pub nginx.tar

chmod 600 nginx.tar && sudo docker load -i nginx.tar

docker load -i nginx.tar --network none