@dotenvx/dotenvx

a better dotenv–from the creator of dotenv.

• run anywhere (cross-platform)
• multi-environment
• encrypted envs

 

Quickstart

brew install dotenvx/brew/dotenvx

• other ways to install

 

Run Anywhere

$ echo "HELLO=World" > .env && echo "console.log('Hello ' + process.env.HELLO)" > index.js

$ node index.js
Hello undefined

$ dotenvx run -- node index.js
Hello World
> :-D

More examples

• Python 🐍

  
  

  $ echo "HELLO=World" > .env && echo 'import os;print("Hello " + os.getenv("HELLO", ""))' > index.py
  
  $ dotenvx run -- python3 index.py
  Hello World
  

• PHP 🐘

  
  

  $ echo "HELLO=World" > .env && echo '<?php echo "Hello {$_SERVER["HELLO"]}\n";' > index.php
  
  $ dotenvx run -- php index.php
  Hello World
  

• Ruby 💎

  
  

  $ echo "HELLO=World" > .env && echo 'puts "Hello #{ENV["HELLO"]}"' > index.rb
  
  $ dotenvx run -- ruby index.rb
  Hello World
  

• Rust 🦀

  
  

  $ echo "HELLO=World" > .env && echo 'fn main() {let hello = std::env::var("HELLO").unwrap_or("".to_string());println!("Hello {hello}");}' > src/main.rs
  
  $ dotenvx run -- cargo run
  Hello World
  

• Java ☕️

  
  

  $ echo "HELLO=World" > .env && echo 'public class Index { public static void main(String[] args) { System.out.println("Hello " + System.getenv("HELLO")); } }' > index.java
  
  $ dotenvx run -- java index.java
  Hello World
  

• .NET 🔵

  
  

  $ dotnet new console -n HelloWorld -o HelloWorld
  $ cd HelloWorld
  $ echo "HELLO=World" > .env && echo 'Console.WriteLine($"Hello {Environment.GetEnvironmentVariable("HELLO")}");' > Program.cs && echo "HELLO=World" > .env
  
  $ dotenvx run -- dotnet run
  Hello World
  

• Frameworks ▲

  
  

  $ dotenvx run -- next dev
  $ dotenvx run -- npm start
  $ dotenvx run -- bin/rails s
  $ dotenvx run -- php artisan serve
  

• Docker 🐳

  
  

  $ docker run -it --rm -v $(pwd):/app dotenv/dotenvx run -- node index.js
  

  Or in any image:

  FROM node:latest
  RUN echo "HELLO=World" > .env && echo "console.log('Hello ' + process.env.HELLO)" > index.js
  RUN curl -fsS https://dotenvx.sh/ | sh
  CMD ["dotenvx", "run", "--", "echo", "Hello $HELLO"]
  

• CI/CDs 🐙

  
  

  examples coming soon
  

• Platforms

  
  

  examples coming soon
  

• npx

  
  

  # alternatively use npx
  $ npx @dotenvx/dotenvx run -- node index.js
  $ npx @dotenvx/dotenvx run -- next dev
  $ npx @dotenvx/dotenvx run -- npm start
  

• npm

  
  

  $ npm install @dotenvx/dotenvx --save
  

  {
    "scripts": {
      "start": "./node_modules/.bin/dotenvx run -- node index.js"
    },
    "dependencies": {
      "@dotenvx/dotenvx": "^0.5.0"
    }
  }
  

  $ npm run start
  
  > start
  > ./node_modules/.bin/dotenvx run -- node index.js
  
  [dotenvx][INFO] injecting 1 environment variable from .env
  Hello World
  

• Git

  
  

  # use as a git submodule
  $ git dotenvx run -- node index.js
  $ git dotenvx run -- next dev
  $ git dotenvx run -- npm start
  

 

Multiple Environments

Create a .env.production file and use --env-file to load it. It's straightforward, yet flexible.

$ echo "HELLO=production" > .env.production && echo "console.log('Hello ' + process.env.HELLO)" > index.js

$ dotenvx run --env-file=.env.production -- node index.js
Hello production
> ^^

More examples

• multiple `.env` files

  
  

  $ echo "HELLO=local" > .env.local
  
  $ echo "HELLO=World" > .env
  
  $ dotenvx run --env-file=.env.local --env-file=.env -- node index.js
  Hello local
  

• `--overload` flag

  
  

  $ echo "HELLO=local" > .env.local
  
  $ echo "HELLO=World" > .env
  
  $ dotenvx run --env-file=.env.local --env-file=.env --overload -- node index.js
  Hello World
  

• `--verbose` flag

  
  

  $ echo "HELLO=production" > .env.production
  
  $ dotenvx run --env-file=.env.production --verbose -- node index.js
  [dotenvx][VERBOSE] injecting env from /path/to/.env.production
  [dotenvx][VERBOSE] HELLO set
  [dotenvx][INFO] injecting 1 environment variable from .env.production
  Hello production
  

• `--debug` flag

  
  

  $ echo "HELLO=production" > .env.production
  
  $ dotenvx run --env-file=.env.production --debug -- node index.js
  [dotenvx][DEBUG] configuring options
  [dotenvx][DEBUG] {"envFile":[".env.production"]}
  [dotenvx][VERBOSE] injecting env from /path/to/.env.production
  [dotenvx][DEBUG] reading env from /path/to/.env.production
  [dotenvx][DEBUG] parsing env from /path/to/.env.production
  [dotenvx][DEBUG] {"HELLO":"production"}
  [dotenvx][DEBUG] writing env from /path/to/.env.production
  [dotenvx][VERBOSE] HELLO set
  [dotenvx][DEBUG] HELLO set to production
  [dotenvx][INFO] injecting 1 environment variable from .env.production
  Hello production
  

 

Encryption

Encrypt your secrets to a .env.vault file.

$ echo "HELLO=World" > .env && echo "console.log('Hello ' + process.env.HELLO)" > index.js

$ echo "HELLO=production" > .env.production

$ dotenvx encrypt
[dotenvx][INFO] encrypted .env,.env.production to .env.vault
[dotenvx][INFO]
[dotenvx][INFO] try it out:
[dotenvx][INFO]
[dotenvx][INFO]     DOTENV_KEY='<DOTENV_KEY_ENVIRONMENT>' dotenvx run -- node index.js
[dotenvx][INFO]
[dotenvx][INFO] next:
[dotenvx][INFO]
[dotenvx][INFO]     1. commit .env.vault safely to code
[dotenvx][INFO]     2. set DOTENV_KEY on server (or ci)
[dotenvx][INFO]     3. push your code
[dotenvx][INFO]
[dotenvx][INFO] tips:
[dotenvx][INFO]
[dotenvx][INFO]     * .env.keys file holds your decryption DOTENV_KEYs
[dotenvx][INFO]     * DO NOT commit .env.keys to code
[dotenvx][INFO]     * share .env.keys file over secure channels only
> :-]

 

Then load env from encrypted .env.vault file

$ DOTENV_KEY='dotenv://:[e-mail]/vault/.env.vault?environment=production' dotenvx run -- node index.js
[dotenvx][INFO] injecting 1 environment variable from encrypted .env.vault
Hello production

> :-]

More examples

• AWS Lambda

  
  

  coming soon
  

• Digital Ocean

  
  

  coming soon
  

• Docker

  
  

  coming soon
  

• Fly.io

  
  

  coming soon
  

• Heroku

  
  

  coming soon
  

• Laravel Forge

  
  

  coming soon
  

• Netlify

  
  

  coming soon
  

• Railway

  
  

  coming soon
  

• Render

  
  

  coming soon
  

• Vercel

  
  

  coming soon
  

• CircleCI

  
  

  coming soon
  

• GitHub Actions

  
  

  coming soon
  

 

---

Usage

Guide

Begin by creating a simple 'hello world' program.

// index.js
console.log(`Hello ${process.env.HELLO}`)

Run it.

$ node index.js
Hello undefined

Run it with dotenvx.

$ dotenvx run -- node index.js
[dotenvx][WARN] ENOENT: no such file or directory, open '/../../.env'
Hello undefined

It warns you when there is no .env file (pass the --quiet flag to suppress these warnings).

Create the .env file.

# env
JELLO="World"

Run it again.

$ dotenvx run -- node index.js
[dotenvx][INFO] injecting 0 environment variables from .env
Hello undefined

Hrm, still undefined. Pass the --debug flag to debug the issue. I'll give you a hint: 🍮

$ dotenvx run --debug -- node index.js
[dotenvx][VERBOSE] Loading env from /../../.env
[dotenvx][DEBUG] Reading env from /../../.env
[dotenvx][DEBUG] Parsing env from /../../.env
[dotenvx][DEBUG] {"JELLO":"World"}

# Oops, HELLO not JELLO ^^

Fix your .env file.

# .env
HELLO="World"

One last time. Le tired.

$ dotenvx run -- node index.js
[dotenvx][INFO] injecting 1 environment variable from .env
Hello World

🎉 It worked!

 

Contributing

You can fork this repo and create pull requests or if you have questions or feedback:

• github.com/dotenvx/dotenvx - bugs and discussions
• @dotenvx 𝕏 (DMs are open)

Changelog

0.6.4

Added

added tagged images to hub.docker.com/u/dotenv