How does we change memory dedicated to Docker in Linux?

As part of Docker certification projects, I’m trying to run the confluent cp-demo docker image. I’m using Ubuntu 20-04 and in order to start the container, I need to increase the docker max memory setting from the default 2GB to 8GB.

This can be done easily on Windows and Mac by the Docker Desktop app but that isn’t available on Ubuntu and I haven’t found a way to modify it using the cli. (I can only modify the memory of a container after I started it with the cli,but in order to start cp-demo it says I need to change the memory setting first).

Does anyone know how can I do this?

Submit an answer

This textbox defaults to using Markdown to format your answer.

You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!

Sign In or Sign Up to Answer

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

Want to learn more? Join the DigitalOcean Community!

Join our DigitalOcean community of over a million developers for free! Get help and share knowledge in Q&A, subscribe to topics of interest, and get courses and tools that will help you grow as a developer and scale your project or business.

Hi there,

You can specify the memory for the container with the docker run command as follows:

docker run -d --name your-container-name --memory 300M ubuntu

Hope that this helps. Regards, Bobby