Ubuntu20.04开启Docker Remote API 访问

##(1)编辑自启动的配置文件
sudo vim /usr/lib/systemd/system/docker.service

原有配置：
[Service]
ExecStart=/usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock

新配置：
[Service]
ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:2375 -H unix://var/run/docker.sock

:wq!保存退出

##(2)重新加载
sudo systemctl daemon-reload
sudo systemctl restart docker


##(3)测试

curl -X GET http://127.0.0.1:2375/images/json

##返回结果，代表成功
[{"Containers":-1,"Created":1683221823,"Id":"sha256:9c7a54a9a43cca047013b82af109fe963fde787f63f9e016fdc3384500c2823d","Labels":null,"ParentId":"","RepoDigests":["hello-world@sha256:fc6cf906cbfa013e80938cdf0bb199fbdbb86d6e3e013783e5a766f50f5dbaa0"],"RepoTags":["hello-world:latest"],"SharedSize":-1,"Size":13256,"VirtualSize":13256}]