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Building image locally with alternate Java base

The following shows how to change the base Java image used by the build:

docker build --build-arg -t IMG_PREFIX/minecraft-server:java11-graalvm .

Building a multi-architecture image

Ensure buildx/BuildKit support is enabled and run the following to build multi-architecture and push to the repository as named by the image:

docker buildx build --platform=linux/arm64 --platform=linux/arm/v7 --platform=linux/amd64 --tag IMG_PREFIX/minecraft-server --push .

To build for local images, multi-architecture is not supported, use the following with buildx to load the image into the local daemon:

docker buildx build --tag IMG_PREFIX/minecraft-server --load .

or just a plain build

docker build -t IMG_PREFIX/minecraft-server .