Infrastructure documents: =
In the Windows Server container objectives of Administering Windows Server Hybrid Core Infrastructure, image creation is performed from a Dockerfile by using the build workflow. The guide explains that a Dockerfile is a "text manifest of instructions that define how to assemble an image." To produce the actual image, you run docker build against a build context, optionally specifying the Dockerfile name and the image tag. The study text notes: "Use docker build to compile a container image from a Dockerfile; the command processes each instruction (FROM, COPY, RUN, EXPOSE, etc.) and writes the resulting layers to a new image." Other commands serve different purposes: docker exec runs a command inside an existing container; docker create prepares a container from an already-built image without starting it; docker images merely lists images. Therefore, to generate an image from df1, you would run a command such as docker build -f df1 -t contoso/app:1.0 ., which aligns with the exam guidance that image authoring always culminates with docker build.