We're going to install Docker on our Ubuntu server by pulling the appropriate bits from Docker's repository. Run the following commands to install the pre-reqs:
sudo apt-get install apt-transport-https ca-certificates curl software-properties-common
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"Next, run the following to install the docker engine:
sudo apt-get update
sudo apt-get install docker-ceNow for post-installation steps:
sudo usermod -aG docker $USERDocker is now installed! Before we can use it, we need to log out and log in:
exit
[disconnect]
Now ssh back into the server.
Let's test it:
docker infoThis command will show you info about your docker configuration. A sample:
adminuser@jumpbox:~$ docker info
Containers: 1
Running: 0
Paused: 0
Stopped: 1
Images: 1
Server Version: 17.12.1-ce
Storage Driver: aufs
Root Dir: /var/lib/docker/aufs
Backing Filesystem: extfs
Dirs: 3
Dirperm1 Supported: true
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
Volume: local
Network: bridge host macvlan null overlay
Swarm: inactive
Runtimes: runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 9048e5e50717ea4497b757314bad98ea3763c145
runc version: 9c2d8d184e5da67c95d601382adf14862e4f2228
init version: 949e6fa
Security Options:
apparmor
seccomp
Profile: default
Kernel Version: 4.4.0-71-generic
Operating System: Ubuntu 16.04.2 LTS
OSType: linux
Architecture: x86_64
CPUs: 1
Total Memory: 3.359GiB
Name: jumpbox
ID: IAP3:USVC:ZLBW:UZEL:RN5H:53K7:3KNZ:5O5B:I4IQ:D4SQ:KQB4:FWMH
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): false
Registry: https://index.docker.io/v1/
Experimental: false
Insecure Registries:
127.0.0.0/8
Live Restore Enabled: false