package test import ( "dagger.io/dagger" "universe.dagger.io/docker" "universe.dagger.io/alpine" ) dagger.#Plan & { actions: { image: alpine.#Build run: docker.#Run & { "image": image.output script: #""" echo -n hello world >> /output.txt """# export: files: "/output.txt": _ & { contents: "hello world" } } } }