Dockerfile is a file format used to build Docker images.

Docker is a computer program that performs operating-system-level virtualization, also known as “containerization”

This page describe how to add basic Dockerfile syntax highlighting on Geany.

Add the following lines to ~/.config/geany/filetype_extensions.conf under the respective sections [Extensions] and [Groups]

[Extensions]
Dockerfile=Dockerfile;dockerfile;*.dockerfile;*.Dockerfile;
[Groups]
Script=Dockerfile;

Save the configuration file below in your Geany filetype definition files config directory, e.g. ~/.config/geany/filedefs/filetypes.Dockerfile.conf

NB: Note that this filetype definition file is in version 0.1, meaning it can be used but needs improvement.

filetypes.Dockerfile.conf

# For complete documentation of this file, please see Geany's main documentation
 
# Geany Color Syntax support for Dockerfiles
# version 0.1
 
[styling=C]
 
[keywords]
primary=ADD ARG CMD COPY ENTRYPOINT ENV EXPOSE FROM HEALTHCHECK LABEL ONBUILD RUN SHELL STOPSIGNAL USER VOLUME WORKDIR
 
[lexer_properties=C]
 
[settings]
lexer_filetype=C
tag_parser=C
extension=c
# single comments, like # in this file
comment_single=#
# set to false if a comment character/string should start at column 0 of a line, true uses any
# indentation of the line, e.g. setting to true causes the following on pressing CTRL+d
	#command_example();
# setting to false would generate this
#	command_example();
# This setting works only for single line comments
comment_use_indent=true
# context action command (please see Geany's main documentation for details)
context_action_cmd=xdg-open "https://docs.docker.com/engine/reference/builder/"

Finally, add the following line to the data Makefile ~/data/Makefile.am

Makefile.am

filedefs/filetypes.Dockerfile.conf