How to Send Commands to the Docker Daemon without Using Sudo? Yes, I Know IT! Ep 25
Links, time markers and a ton more in the description below. ▼
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HOW TO SEND COMMANDS TO THE DOCKER DAEMON WITHOUT USING SUDO
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If you’ve followed my previous Docker videos, you know you have to prefix each docker command by sudo--unless of course if you are directly running your shell as root. Pfff! It’s so boooring to type those five extra characters before each command…
Joke aside, let’s think about the problem: Docker is using a client-server architecture. No doubt dockerd, the Docker server, is a privileged process that must be run as root. But what about the docker command line client? Why does it require elevated privileges? Why can’t an ordinary unprivileged user send commands to the Docker server? Well, actually (s)he can, and that only requires a tiny change of the user account configuration:
▶ 🎬 Watch the video now: "How to Send Commands to the Docker Daemon without Using Sudo"( • How to Send Commands to the Docker Da... )
However, if we may do it, that does not necessarily mean we should do it. So, in that video, you will learn a little bit more about the Docker architecture. And most important, I will mention the potential security issues that may arise if you allow an untrusted user to interact directly with the Docker engine. That way, you will have all the keys in your hands to choose if you want to do that or not (hint: you probably do not want to do that in production).
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HOW IS IT RELATED TO OTHER VIDEOS?
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This video is related to my Docker series(https://yesik.it/tag/docker). If you are very new to containers, I may suggest watching the following two videos first:
▶ What is Virtualization(https://www.yesik.it/EP12), notably showing the difference between virtual machines and containers
▶ How to install Docker on Debian/Ubuntu/CentOS(https://www.yesik.it/EP15) for the basic setup of Docker on your system
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TIME LINKS
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If you don’t have the time to watch the video entirely, here are few links to jump directly to the section that interests you the most:
▶ The Docker engine client-server architecture( • How to Send Commands to the Docker Da... )
▶ Checking permissions on the Docker Unix domain socket( • How to Send Commands to the Docker Da... )
▶ Adding a user to the Docker group( • How to Send Commands to the Docker Da... )
▶ Changing the current real group ID using the newgrp utility( • How to Send Commands to the Docker Da... )
▶ The risks of privilege escalation when giving access to the Docker engine( • How to Send Commands to the Docker Da... )
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🎬 Watch the video: "How to Send Commands to the Docker Daemon without Using Sudo"( • How to Send Commands to the Docker Da... )
#Docker #Containers #Sudo #PrivilegeEscalation #YesIKnowIT
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