CentOS 7下处理docker镜像拉取报错missing signature key并重新安装docker解决【测试成功】

艺帆风顺 发布于 2025-04-03 20 次阅读

一、需求背景

    docker容器拉取镜像时提示missing signature key.

    [root@XSW data]# docker run --name redis --restart=always -p 16379:6379 -d redisUnable to find image 'redis:latest' locallyTrying to pull repository docker.io/library/redis ... /usr/bin/docker-current: missing signature key.See '/usr/bin/docker-current run --help'.

        且存在运行中的容器重启后丢失。

        初步判断可能是由于docker版本过低导致，遂安装最新版本。

    二、重新安装docker

      1、处理依赖并添加镜像源

    # yum install -y yum-utils device-mapper-persistent-data lvm2

    # yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

       

        2、查看可按照的版本并执行安装

        yum list docker-ce --showduplicates | sort -r

        yum -y install docker-ce-26.1.2-1.el7

        3、查看版本号并配置国内镜像仓库

      [root@XSW yum.repos.d]# docker -vDocker version 26.1.2, build 211e74b[root@XSW bin]# cat /etc/docker/daemon.json{"registry-mirrors": ["https://docker.mirrors.ustc.edu.cn/","https://hub-mirror.c.163.com","https://registry.docker-cn.com"],"insecure-registries": ["10.0.0.12:5000"]}[root@XSW yum.repos.d]# systemctl start docker[root@XSW yum.repos.d]# systemctl enable dockerCreated symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service.

          4、处理拉取容器报错：unknown or invalid runtime name: docker-runc

        [root@XSW yum.repos.d]# docker start 1c695a7763e0Error response from daemon: unknown or invalid runtime name: docker-runc

        解决方案：

            # grep -rl 'docker-runc' /var/lib/docker/containers/ | xargs sed -i 's/docker-runc/runc/g'

            # systemctl restart docker

            5、再次拉取，可以发现恢复正常

          [root@XSW yum.repos.d]# docker pull nginxUsing default tag: latestlatest: Pulling from library/nginxb0a0cf830b12: Already exists 4d84de5fb9b2: Pull complete 2818b7b6a9db: Pull complete 1e5314d67f16: Pull complete 8066e07ce4f2: Pull complete 05f7109fea9e: Pull complete e58cbd904f7f: Pull complete Digest: sha256:32e76d4f34f80e479964a0fbd4c5b4f6967b5322c8d004e9cf0cb81c93510766Status: Downloaded newer image for nginx:latestdocker.io/library/nginx:latest