Will a Docker image created for the x86-64 architecture successfully run on an ARM processor?

A Docker image created for the x86-64 architecture will not directly work on an ARM processor, as these are different hardware architectures with incompatible instruction sets.

To run the image on ARM, you need to:

• Use multi-architecture (multi-arch) images that contain versions for different architectures.
• Or rebuild the image specifically for ARM.

Docker supports multi-architecture images through the Docker Buildx platform, which allows creating images for multiple architectures and automatically selecting the appropriate one at runtime.

Attempting to run an x86-64 image on ARM without emulation will result in an error.

For emulation, you can use QEMU, but it reduces performance.