Install Docker Client Only

2/12/2022by admin

It is a command line tool that lets you talk to the Docker daemon. When you install Docker, you get both the Docker daemon and the Docker CLI tools together. You could describe Docker as a client server application. The daemon is the server, and the CLI is 1 of many clients. There’s also a number of third party clients. To install the Luna Minimal Client software on a Linux 64-bit Docker instance: This example uses NTLS. The use of STC is optional. This example is based on CentOS 7; other operating systems might require adjustments to the commands and to the docker file.

  • 1Installation
  • 4'WARNING: No {swap,memory} limit support'

Installation

Install Docker Client Only

The Docker package is in the 'Community' repository. See Alpine_Linux_package_management how to add a repository.

Connecting to the Docker daemon through its socket requires you to add yourself to the `docker` group.

To start the Docker daemon at boot, see Alpine_Linux_Init_System.

Note: On older versions of Alpine Linux with older versions of docker you'll also need to disable some kernel security flags in order to build images:

For more information, have a look at the corresponding Github issue.

Only

This weakening of security is not necessary to do with Alpine 3.4.x and Docker 1.12 as of August 2016.

Docker Compose

'docker-compose' is in the 'Community' repository starting with Alpine Linux 3.10.

For older releases:

To install docker-compose, first install pip:

Isolate containers with a user namespace

add to /etc/docker/daemon.json

You may also consider these options : '

You'll find all possible configurations here[1].

Example: How to install docker from Arch

Docker install client only windows

'WARNING: No {swap,memory} limit support'

You might encounter this message when executing docker info.To correct this situation, we have to enable the cgroup_enable=memory swapaccount=1

Alpine 3.8

It may not have been the case before, but with Alpine 3.8, you must config cgroups properly

Warning: This seems not to work with Alpine 3.9 and Docker 18.06. Follow the instructions for grub or extlinux below instead.

Grub

If you use Grub, add the cgroup condition into /etc/default/grub, then upgrade your grub

Docker install client only windows

Extlinux

With Extlinux, you add the cgroup condition, but inside of /etc/update-extlinux.conf

then update the config and reboot

update-extlinux

How to use docker

The best documentation on using Docker and creating containers is at the main docker site. Adding anything to it here would be redundant.

If you create an account at docker.com, you can browse through user images and learn from the syntax in contributed dockerfiles.

Official Docker image files are denoted on the website by a blue ribbon.

See also

Retrieved from 'http://wiki.alpinelinux.org/w/index.php?title=Docker&oldid=20062'

Docker have recently announced changes to their pricing and subscriptions which require a paid subscription for users outside of personal, education and small business use.

It seems that this license change only applies to Docker Desktop which is the GUI client for Windows and Mac. The good news is that you can install the Docker Engine on Windows using Windows Subsystem for Linux 2! The bad news is that you won’t have easy access to the GUI to manage containers; you’ll have to use the CLI (although I prefer this anyway).

Install WSL2 (and Ubuntu)

The first step if you haven’t done it already is to get WSL2 install. I’d recommend setting up WSL2 by following the Microsoft guide to install WSL2 on Windows 10.

I installed the Ubuntu distribution since this is what I am most familiar with.

Docker Install Client Only Windows

After WSL2 is setup, you can install Ubuntu by running the following command.

Install Docker Engine on WSL2

Now that we have Ubuntu setup on WSL2 we can install the Docker Engine. Docker have a guide for installing Docker Engine on Ubuntu, I would recommend using the repository installation method since this will make installing updates much easier in the future.

After Docker Engine has been installed, I would also recommend following the post-installation steps for Linux. This will allow you to execute Docker commands without requiring to be a root user and ensure that Docker Engine starts on boot.

Steps I followed

For simplicity, I ran the following commands on Ubuntu 20.04 to setup Docker Engine on my machine.

Run Docker Commands

At this point you should have a fully operation Docker Engine installed running on Ubuntu under WSL2. You can check this by trying to run the hello-world image from Docker Hub.

After this has completed you should see a message from docker indicating it was successful. If you’re seeing that message, you are ready to go!

One drawback of this approach is that you will need to start the docker service yourself after rebooting or restarting WSL2. You can do this by running the following command.

Summary

Centos Install Docker Client Only

With the steps above you should have a working copy of Docker Engine running with WSL2! Enjoy!

Install Docker Client Only Upon

If your copy isn’t running you might want to check the following things.

Install Docker Client Only Rule

  • Ensure your WSL distribution is running on WSL2. You can check by running wsl –l –v.
  • Make sure the docker service is running. You can start the service by running sudo service docker start.
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