Dockerfile with entrypoint exec for multiline string cat

Dockerfile

+FROM alpine
+
+COPY ./entrypoint.sh /
+
+RUN chmod +x /entrypoint.sh
+
+ENTRYPOINT [ "/entrypoint.sh" ]
\ No newline at end of file

entrypoint.sh

+#!/bin/sh
+cat <<EOF
+Hello from Docker!
+This message shows that your installation appears to be working correctly.
+
+⠀⠀⠀⠀⠀⠀⠀⠀⣀⣀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
+⠀⠀⠀⠀⠀⠀⣰⣿⣿⣿⣿⣦⣀⣀⣀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
+⠀⠀⠀⠀⠀⠀⢿⣿⠟⠋⠉⠀⠀⠀⠀⠉⠑⠢⣄⡀⠀⠀⠀⠀⠀
+⠀⠀⠀⠀⠀⢠⠞⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠙⢿⣿⣿⣦⡀
+⠀⣀⠀⠀⢀⡏⠀⢀⣴⣶⣶⡄⠀⠀⠀⠀⠀⠀⠀⠀⠀⢻⣿⣿⠇
+⣾⣿⣿⣦⣼⡀⠀⢺⣿⣿⡿⠃⠀⠀⠀⠀⣠⣤⣄⠀⠀⠈⡿⠋⠀
+⢿⣿⣿⣿⣿⣇⠀⠤⠌⠁⠀⡀⢲⡶⠄⢸⣏⣿⣿⠀⠀⠀⡇⠀⠀
+⠈⢿⣿⣿⣿⣿⣷⣄⡀⠀⠀⠈⠉⠓⠂⠀⠙⠛⠛⠠⠀⡸⠁⠀⠀
+⠀⠀⠻⣿⣿⣿⣿⣿⣿⣷⣦⣄⣀⠀⠀⠀⠀⠑⠀⣠⠞⠁⠀⠀⠀
+⠀⠀⠀⢸⡏⠉⠛⠛⠛⠿⠿⣿⣿⣿⣿⣿⣿⣿⣿⡄⠀⠀⠀⠀⠀
+⠀⠀⠀⠸⠀⠀⠀⠀⠀⠀⠀⠀⠈⠉⠛⢿⣿⣿⣿⣿⡄⠀⠀⠀⠀
+⠀⠀⠀⢷⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⢻⣿⣿⣿⣿⡀⠀⠀⠀
+⠀⠀⠀⢸⣆⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣿⣿⣿⣿⡇⠀⠀⠀
+⠀⠀⠀⢸⣿⣦⣀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣼⡟⠻⠿⠟⠀⠀⠀⠀
+⠀⠀⠀⠀⣿⣿⣿⣿⣶⠶⠤⠤⢤⣶⣾⣿⣿⡇⠀⠀⠀⠀⠀⠀⠀
+⠀⠀⠀⠀⠹⣿⣿⣿⠏⠀⠀⠀⠈⢿⣿⣿⡿⠁⠀⠀⠀⠀⠀⠀⠀
+⠀⠀⠀⠀⠀⠈⠉⠉⠀⠀⠀⠀⠀⠀⠉⠉⠀⠀⠀⠀⠀⠀⠀⠀⠀
+
+EOF
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