While patterns like .env.go.local are convenient for local development, they are not suitable for managing secrets in production environments. For production, you should use the secret management tools provided by your hosting platform (such as AWS Secrets Manager, HashiCorp Vault, or Kubernetes Secrets) or inject environment variables directly through your CI/CD pipeline. The .env.go.local file should remain strictly a development‑only tool.
Which you plan to use for configuration management (e.g., godotenv , viper )?
To support our hierarchy, we should check for the existence of .env.go.local first. Here is a complete implementation:
For this example, we'll use the popular godotenv library because of its simplicity and widespread adoption.
Create a file named `.
While you might be familiar with standard .env or .env.local files from the Node.js ecosystem, Go developers often adopt specialized naming conventions like .env.go.local to distinguish Go-specific local configurations from other parts of a polyglot codebase. What is .env.go.local ?
(gitignored, created by each developer):
Initialize your Go module (if you haven't already) and fetch the package: go get ://github.com Use code with caution. 2. Writing the Configuration Loading Logic
A library like github.com/caarlos0/env can parse these tags directly, making the process even cleaner. .env.go.local
"go.buildTags": "local"
package config
Onboarding developers can simply run cp .env.go.local.template .env.go.local and populate their personal tokens safely. Implementing .env.go.local in Go
: This lightweight package is designed to look for files called env.json or .env in your project directory and apply them as environment variables, accessible via os.Getenv . It's based on a Node.js module, making it a good choice for teams with a polyglot background. While patterns like
: You should almost always add *.local or .env.go.local to your .gitignore file to ensure your private secrets never reach your shared repository.
.env .env.local .env.go.local
# .env.go.local DB_HOST=localhost DB_USER=admin DB_PASSWORD=supersecretpassword API_KEY=local_debug_key PORT=8080 Use code with caution. Step 2: Update .gitignore
Create a file named .env.go.local in the root of your project directory. Which you plan to use for configuration management (e
In a typical Go application, you might have multiple environment variables that need to be set, such as database connections, API keys, or feature flags. These variables might be set in a variety of ways, including: