How to properly format an included docker-compose.yml file

Question

How do I properly format and highlight a docker-compose.yml file when including a code snippet into a latex document.

I want to do something like:

\documentclass{article}
\usepackage{listings}
\lstset{language=YAML}

\begin{document}

\lstinputlisting{docker-compose.yml}

\end{document}

to import the following docker-compose.yml.

version: "3.7"

services:
  foo:
    image: hello-world

How do I add syntax highlighting for *.yaml/*.yml files?

I am aware of this answer to format a yaml snippet. I want to know how to do the same with an imported yaml file.

Answer 1

You can use the same approach as in the answer you linked to (don't forget to also load the xcolor package):

\documentclass{article}
\usepackage{xcolor}
\usepackage{listings}

\lstdefinestyle{yaml}{
     basicstyle=\color{blue}\footnotesize,
     rulecolor=\color{black},
     string=[s]{'}{'},
     stringstyle=\color{blue},
     comment=[l]{:},
     commentstyle=\color{black},
     morecomment=[l]{-}
 }


\begin{document}

\lstinputlisting[style=yaml]{docker-compose.yml}

\end{document}