Ubuntu docker使用

[大法师]

root@ubuntu:~# snap install docker

root@ubuntu:~# snap start docker
Started.
root@ubuntu:~# snap services
Service Startup Current Notes
docker.dockerd enabled active -
lxd.activate enabled inactive -
lxd.daemon enabled inactive socket-activated
root@ubuntu:~#
root@ubuntu:~# docker info
Client:
Context: default
Debug Mode: false

Server:
Containers: 0
Running: 0
Paused: 0
Stopped: 0
Images: 0
Server Version: 20.10.14
Storage Driver: overlay2
Backing Filesystem: extfs
Supports d_type: true
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 logentries splunk syslog
Swarm: inactive
Runtimes: io.containerd.runc.v2 io.containerd.runtime.v1.linux runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 3df54a852345ae127d1fa3092b95168e4a88e2f8
runc version:
init version: de40ad0
Security Options:
seccomp
Profile: default
Kernel Version: 5.10.66
Operating System: Ubuntu Core 18
OSType: linux
Architecture: aarch64
CPUs: 8
Total Memory: 3.634GiB
Name: ubuntu
ID: PV2I:N6WA:XSSO:CEVD:NA3X:GJ3Q:NNAC:ZM3Y:3WI7:3O3E:LV3L:RHPE
Docker Root Dir: /var/snap/docker/common/var-lib-docker
Debug Mode: false
Registry: https://index.docker.io/v1/
Labels:
Experimental: false
Insecure Registries:
127.0.0.0/8
Live Restore Enabled: false

root@ubuntu:~#
root@ubuntu:~# docker pull hello-world
Using default tag: latest
latest: Pulling from library/hello-world
7050e35b49f5: Pull complete
Digest: sha256:7d246653d0511db2a6b2e0436cfd0e52ac8c066000264b3ce63331ac66dca625
Status: Downloaded newer image for hello-world:latest
docker.io/library/hello-world:latest
root@ubuntu:~#
root@ubuntu:~# docker run hello-world

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.
   (arm64v8)
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/

root@ubuntu:~#