Docker

  1. docker rm `docker ps -a -q` 移除所有的容器(容器必须停止之后才能移除)

  2. move docker images from A machine to B machine

    * save image : docker save -o docker-images/nexus3.tar sonatype/nexus3:latest

    * load image : docker load < docker-images/nexus3.tar

configure registry-mirror

[Control and configure Docker with systemd](https://docs.docker.com/engine/admin/systemd/)

mkdir -p /etc/systemd/system/docker.service.d

vim /etc/systemd/system/docker.service.d/over.conf



[Service]
ExecStart=
ExecStart=/usr/bin/dockerd -D --registry-mirror=http://****.m.daocloud.io

:wq

docker starat

sudo docker daemon -D  #debug start dock

/usr/bin/dockerd -D --registry-mirror=http://****.m.daocloud.io --insecure-registry=172.20.10.152:5000 # 提供镜像源,注册地址

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