Do you have experience working with Docker? Have you written Dockerfiles yourself?

Yes, I have experience working with Docker and writing Dockerfiles. A Dockerfile is a script that describes how to build a container image: base image, copying files, installing dependencies, running the application.

Example of a simple Dockerfile for a Go application:

FROM golang:1.20-alpine
WORKDIR /app
COPY . .
RUN go build -o myapp
CMD ["./myapp"]

This file allows you to build an image with the application, which can be run in a container. When writing the Dockerfile, I consider layer optimization, security, and minimizing the image size.