Can you give examples of commands used in a Dockerfile to build a container?

The following commands are often used in a Dockerfile:

• FROM — sets the base image for building the container.
• RUN — executes commands during the build process, such as installing dependencies.
• COPY — copies files from the build context into the image.
• WORKDIR — sets the working directory inside the container.
• CMD — specifies the command to run when the container starts.

Example:

FROM python:3.9-slim
WORKDIR /app
COPY requirements.txt ./
RUN pip install -r requirements.txt
COPY . .
CMD ["python", "app.py"]