How to build a Docker image with specific architecture

Situation

It is necessary to build a Docker image from the Dockerfile, but the built image always has the same architecture as the current PC from which the build was started. However, in some cases, it could be necessary to build the image of another architecture.

Question

How to build the Docker image from Dockerfile with architecture that differs from the current machine?

Answer

The --platform key could be added to the Dockerfile run configuration. To do it, perform the following steps:

• open the Run | Edit Configurations... window;
• select or create a new Dockerfile configuration;
• add the Build options field to the configuration as shown in the screenshot below:

• add the --platform option to the Build options field and specify the necessary platform as described in the official documentation.