To run oasdiff from docker just replace the oasdiff command by docker run --rm -t oasdiff/oasdiff (or the image you prefer).
Here are a few examples:
docker run --rm -t tufin/oasdiff breaking https://raw.githubusercontent.com/oasdiff/oasdiff/main/data/openapi-test1.yaml https://raw.githubusercontent.com/oasdiff/oasdiff/main/data/openapi-test3.yamldocker run --rm -t -v $(pwd):/specs:ro -w /specs tufin/oasdiff changelog openapi-test1.yaml openapi-test3.yamlReplace $(pwd) by the path that contains your specs.