Docker運行hello-world鏡像失敗或超時的問題
docker run hello-world時超時告警
? 跟著官方文檔進行docker安裝時,測試docker是否運行成功執(zhí)行docker run hello-world
時,結果和別人的不一樣
正常情況:
我們的:
Unable to find image 'hello-world:latest' locally latest: Pulling from library/hello-world c1ec31eb5944: Retrying in 10 seconds docker: error pulling image configuration: download failed after attempts=6: dial tcp 128.242.245.93:443: connect: connection refused. See 'docker run --help'.
原因:就是我們的鏡像源不行,需要更換鏡像源
但是我們就算知道原因,去找度娘會發(fā)現(xiàn)大部分都是說更換阿里的鏡像源,但是我們嘗試之后并沒有作用
常規(guī)方案沒作用
#針對Docker客戶端版本大于 1.10.0 的用戶 #您可以通過修改daemon配置文件/etc/docker/daemon.json來使用加速器 sudo mkdir -p /etc/docker sudo tee /etc/docker/daemon.json <<-'EOF' { "registry-mirrors": ["https://5nkcn10r.mirror.aliyuncs.com"] } EOF sudo systemctl daemon-reload sudo systemctl restart docker
2.1、解決方案
配置加速地址:設置registry mirror
sudo mkdir -p /etc/docker sudo tee /etc/docker/daemon.json <<-'EOF' { "registry-mirrors": [ "https://do.nark.eu.org", "https://dc.j8.work", "https://docker.m.daocloud.io", "https://dockerproxy.com", "https://docker.mirrors.ustc.edu.cn", "https://docker.nju.edu.cn" ] } EOF sudo systemctl daemon-reload sudo systemctl restart docker systemctl status docker
重啟完docker之后檢查registry mirror剛剛配置的加速地址是否成功
[root@wzy1303 docker]# docker info Client: Docker Engine - Community Version: 26.1.4 Context: default Debug Mode: false Plugins: buildx: Docker Buildx (Docker Inc.) Version: v0.14.1 Path: /usr/libexec/docker/cli-plugins/docker-buildx compose: Docker Compose (Docker Inc.) Version: v2.27.1 Path: /usr/libexec/docker/cli-plugins/docker-compose Server: Containers: 1 Running: 0 Paused: 0 Stopped: 1 Images: 1 Server Version: 26.1.4 Storage Driver: overlay2 Backing Filesystem: xfs Supports d_type: true Using metacopy: false Native Overlay Diff: true userxattr: false Logging Driver: json-file Cgroup Driver: cgroupfs Cgroup Version: 1 Plugins: Volume: local Network: bridge host ipvlan macvlan null overlay Log: awslogs fluentd gcplogs gelf journald json-file local splunk syslog Swarm: inactive Runtimes: io.containerd.runc.v2 runc Default Runtime: runc Init Binary: docker-init containerd version: d2d58213f83a351ca8f528a95fbd145f5654e957 runc version: v1.1.12-0-g51d5e94 init version: de40ad0 Security Options: seccomp Profile: builtin Kernel Version: 3.10.0-1160.119.1.el7.x86_64 Operating System: CentOS Linux 7 (Core) OSType: linux Architecture: x86_64 CPUs: 8 Total Memory: 2.761GiB Name: wzy1303 ID: 74efae68-ef43-45a9-b547-ffa2c3805423 Docker Root Dir: /var/lib/docker Debug Mode: false Username: inkling1303 Experimental: false Insecure Registries: 127.0.0.0/8 Registry Mirrors: https://do.nark.eu.org/ https://dc.j8.work/ https://docker.m.daocloud.io/ https://dockerproxy.com/ https://docker.mirrors.ustc.edu.cn/ https://docker.nju.edu.cn/ Live Restore Enabled: false
可以看到我們已經(jīng)配置成功:
運行docker run hello-world,成功運行
[root@wzy1303 docker]# docker run hello-world Unable to find image 'hello-world:latest' locally latest: Pulling from library/hello-world c1ec31eb5944: Pull complete Digest: sha256:53cc4d415d839c98be39331c948609b659ed725170ad2ca8eb36951288f81b75 Status: Downloaded newer image for hello-world:latest Hello from Docker! This message shows that your installation appears to be working correctly. To generate this message, Docker took the following steps: 1. The Docker client contacted the Docker daemon. 2. The Docker daemon pulled the "hello-world" image from the Docker Hub. (amd64) 3. The Docker daemon created a new container from that image which runs the executable that produces the output you are currently reading. 4. The Docker daemon streamed that output to the Docker client, which sent it to your terminal. To try something more ambitious, you can run an Ubuntu container with: $ docker run -it ubuntu bash Share images, automate workflows, and more with a free Docker ID: https://hub.docker.com/ For more examples and ideas, visit: https://docs.docker.com/get-started/ #查看是否成功拉取hello-world鏡像 [root@wzy1303 docker]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE hello-world latest d2c94e258dcb 15 months ago 13.3kB [root@wzy1303 docker]# docker images -a REPOSITORY TAG IMAGE ID CREATED SIZE hello-world latest d2c94e258dcb 15 months ago 13.3kB [root@wzy1303 docker]# docker images -aq d2c94e258dcb
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