flake-templates

Requirements

See wiki page.

Usage

Use a template

nix flake init -t github:eduvo/flake-templates#<template>

For example,

nix flake init -t github:eduvo/flake-templates#rails-mysql

By using a template, the files of the <template> are downloaded to current directory.

Enable direnv

direnv allow

The packages and services (such as databases) specified in the template will be installed automatically.

Run services

Services are managed by devenv, which is installed automatically.

devenv up

For example,

> devenv up
10:43:25 system            | memcached.1 started (pid=28338)
10:43:25 system            | redis.1 started (pid=28339)
10:43:25 system            | mysql-configure.1 started (pid=28340)
10:43:25 system            | mysql.1 started (pid=28341)

Procfile-based applications

If you're using foreman to manage your application processes, add devenv up to Procfile, so you can run a single command for development.

For example, given the Procfile:

web: rails server -p 3000
js: yarn build --watch
css: yarn build:css --watch
sidekiq: bundle exec sidekiq -C config/sidekiq.yml
ngrok: ngrok http --domain=fariapay.ngrok.dev 3000
devenv: devenv up

Run the dev command starts all processes:

> dev
10:28:35 web.1     | started with pid 63731
10:28:35 js.1      | started with pid 63732
10:28:35 css.1     | started with pid 63733
10:28:35 sidekiq.1 | started with pid 63734
10:28:35 ngrok.1   | started with pid 63735
10:28:35 devenv.1  | started with pid 63736

Notice no need to use bin/dev as bin is already added to the PATH environment variable.

References

• Why you should give Nix a try?
• Nix language basics
• Nix flakes