temgo

Environment variable based template engine like Jinja2 for your container config files. Lightweight, fast, go cli

Note: wip

Usage

Define variables with the format {{ VAR_IABLE }} inside your template files and set them in your environment before tg execution.

Currently with stdin/stdout and inline support.

# redirection
TESTVAR=foo  tg < /opt/templates/file1.ext > /dest/config/file1.ext
# or inline
TESTVAR=foo tg -i /dest/config/file1.ext

However, using the inline option on your templates will overwrite them. It is recommended to use this option on resettable files.

Placeholders which have no corresponding environment variable gets not replaced. echo 'foo {{ NOT_SET }} bar' | ./tg results in foo {{ NOT_SET }} bar In case of a required variable you can use the strict mode: echo 'foo {{ NOT_SET }} bar' | ./tg -s results in an error.

TODO

• flags for file in/out
• prefix flag for env var e.g. SERVICE_XXX

License

MIT