Build an image with Dockerfile

Dockerfile

# USAGE:
#
#       # Build tetris image
#       docker build -t tetris .
#
#       docker run -it tetris
#

# Base docker image
FROM alpine:latest
LABEL maintainer "Rabia Yilmaz github/rabiayilmazz"

# Install emacs:
# Note: Emacs is only in community repo -> https://pkgs.alpinelinux.org/packages?package=emacs&repo=all&arch=x86_64
RUN apk --no-cache add \
        --repository http://dl-cdn.alpinelinux.org/alpine/edge/community/ \
        emacs

# Autorun tetris
CMD ["/usr/bin/emacs", "-f", "tetris"]