Containers have become the standard way for deploying applications on servers and the web and sometimes even on the desktop.
In this episode we dive into what containers are, how they work, how to build them and what you can do with them.
Whether you are using containers in your development environment, deploying on servers in your data center or as a cloud service, containers save time, handle dependencies, increase security and just make things easier and better in so many ways.
We discuss several commands to build and run containers and we've included examples here:
Dockerfile example:
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FROM ubuntu
RUN apt update && apt install -y apache2
ENTRYPOINT [ "/usr/sbin/apachectl", "-D", "FOREGROUND", "-k", "start" ]
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Build the image using the above Dockerfile:
docker buildx build --tag my_container ./
Run the container:
docker run -p 8080:80 -d my_container
Now, point your web browser at http://localhost:8080 (assuming you did this on your desktop)
Display a list of running containers:
docker compose ls
Attach to a running container and get a shell:
docker exec -it [container name] /bin/bash
Stop a container:
docker container stop [container name]
Start it running again:
docker container start [container name]
Remove a container (after stopping it)
docker container rm [container name]
Hosts:
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Theme music:
Dawn by nuer self, from the album Digital Sky
