Docker - Revision history

Hdridder at 09:48, 25 July 2025

2025-07-25T09:48:19Z

← Older revision		Revision as of 09:48, 25 July 2025
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	[[Category:Linux/Unix]]		[[Category:Linux/Unix]]
			I started with docker as that is the name I knew at that time. Moved to [[Podman]] as that should be more secure and light-weight. Most information is in the [[Podman]] page.

	Docker is used to create containers. In a container system resources are separated from each other e.g. to create a development environment where the developer can experiment freely without the risk of jeopardizing the host system.		Docker is used to create containers. In a container system resources are separated from each other e.g. to create a development environment where the developer can experiment freely without the risk of jeopardizing the host system.

Line 34:		Line 36:
	;docker system prune		;docker system prune
	:Delete unused images and build caches		:Delete unused images and build caches
	;docker prune -a		;docker system prune -a
	:Delete unused images and all build cache		:Delete unused images and all build cache

Hdridder at 13:55, 24 July 2025

2025-07-24T13:55:39Z

← Older revision		Revision as of 13:55, 24 July 2025
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	</syntaxhighlight>		</syntaxhighlight>

	;docker build -t <name>:<tag> /etc/docker		;<nowiki>docker build -t <name>:<tag> /etc/docker</nowiki>
	:This builds the image with a name and a tag		:This builds the image with a name and a tag
	;docker image ls		;docker image ls

Hdridder at 20:33, 21 July 2025

2025-07-21T20:33:48Z

← Older revision		Revision as of 20:33, 21 July 2025
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	apt install docker-buildx		apt install docker-buildx

	;This creates a working container		;This creates a working container with a python virtual environment
	:Dockerfile in /etc/docker		:Dockerfile in /etc/docker
	<syntaxhighlight lang=text>		<syntaxhighlight lang=text>
	FROM ~~ubuntu~~		FROM debian
	LABEL name="Hans de Ridder"		LABEL name="Hans de Ridder"
	RUN apt-get update		RUN apt-get update
	CMD ["~~bash~~", "-i"]		RUN apt-get -y install python3-full
			RUN python3 -m venv /home/ubuntu/venv
			ENV PATH="/home/ubuntu/venv/bin:$PATH"
			RUN pip install pandas
			CMD ["echo", "I'm alive"]
	</syntaxhighlight>		</syntaxhighlight>

	;docker build /etc/docker		;docker build -t <name>:<tag> /etc/docker
	:This ~~build~~ the image		:This builds the image with a name and a tag
	;docker image ls		;docker image ls
	:List all existing images		:List all existing images
	;docker run -it <image ID>		;<nowiki>docker run -v <hostdir>:<containerdir> -it <image ID> bash</nowiki>
	:Create the container and open a bash prompt in it. When leaving the shell the container is closed		:Create the container and open a bash prompt in it. When leaving the shell the container is closed
			:This way you can run any command in a container that only exists while the command is running.
			:<hostdir> is mounted on <containerdir> which will be created automatically
			;docker ps -a
			:List all containers

			;docker system prune
			:Delete unused images and build caches
			;docker prune -a
			:Delete unused images and all build cache

Hdridder: Created page with "Category:Linux/Unix Docker is used to create containers. In a container system resources are separated from each other e.g. to create a development environment where the developer can experiment freely without the risk of jeopardizing the host system. A dockerfile defines what will be in the docker image, running the image will create a container. ;Installation: apt install docker.io apt install docker-buildx ;This creates a working container :Dockerfile in /etc..."

2025-07-20T20:15:18Z

Created page with "Category:Linux/Unix Docker is used to create containers. In a container system resources are separated from each other e.g. to create a development environment where the developer can experiment freely without the risk of jeopardizing the host system. A dockerfile defines what will be in the docker image, running the image will create a container. ;Installation: apt install docker.io apt install docker-buildx ;This creates a working container :Dockerfile in /etc..."

New page

[[Category:Linux/Unix]]
Docker is used to create containers. In a container system resources are separated from each other e.g. to create a development environment where the developer can experiment freely without the risk of jeopardizing the host system.

A dockerfile defines what will be in the docker image, running the image will create a container.

;Installation:
apt install docker.io
apt install docker-buildx

;This creates a working container
:Dockerfile in /etc/docker
<syntaxhighlight lang=text>
FROM ubuntu
LABEL name="Hans de Ridder"
RUN apt-get update
CMD ["bash", "-i"]
</syntaxhighlight>

;docker build /etc/docker
:This build the image
;docker image ls
:List all existing images
;docker run -it <image ID>
:Create the container and open a bash prompt in it. When leaving the shell the container is closed