Secure a Docker Container with Distroless Images with a little assistance from our experts.

At Bobcares, we offer solutions for every query, big and small, as a part of our Server Management Service.

Let’s take a look at how our Support Team recently helped out a customer secure a Docker container with distroless images.

How to secure a Docker Container with Distroless Images

Do you want to increase security within your containers? You are in luck! Our Support Engineers have come up with a way to accomplish this with the help of distroless images. This involves installing fewer packages so that we have:

Furthermore, if an attacker gains access to a container in a scenario where the container is based on a Linux distribution, the attacker can use the shell to execute an attack.

Fortunately, we can get around this by relying on a base image that contains only the current application in its run time dependencies.

In other words, distroless images allow us to install only what we need for the application, which also adds an additional layer of security to the containers.

Our Support Team recommends using a multi-stage build to run the production containers with a distroless image.

The multi-stage builds in the Dockerfile allow as many stages as we want. Furthermore, we have to ensure the last stage is the production stage with the distroless image. This process involves the following steps:

• Providing a name for the build mage
• Pulling a distroless image
• Executing as a non-root user
• Using the CMD exec form

This allows the application to run in a container with only the bare requirements to allow the application to run.

[Seeking a solution to another query? We have your back.]

Conclusion

To conclude, the skilled Support Engineers at Bobcares demonstrated how to secure a Docker container with distroless images.