dagger-env

A type-safe, reusable environment configuration abstraction for Dagger modules with full Zod v4 validation and 1Password integration.

Features

- 🔒 Type-safe: Full TypeScript support with Zod v4 validation
- 🔄 Reusable: Create multiple environment configurations for different projects
- 🎯 Consistent: Standardized API across all Dagger modules
- 🛡️ Validated: Runtime validation of arguments, environment variables, and secrets
- 📦 Modular: Secret presets and derived environment variables
- 🔐 1Password Integration: Built-in command runner with op run support
- 🚀 Easy to use: Simple configuration-based setup

Installation

``bash
npm install dagger-env zod
`

Note: The command runner functionality (dagger-env/run) requires the 1Password CLI (op) to be installed.

Quick Start

`typescript
import { createDaggerEnv } from 'dagger-env'
import { z } from 'zod/v4'

// Define your environment configuration
const myDaggerEnv = createDaggerEnv({
args: z.object({
push: z.string().optional(),
environment: z.enum(['dev', 'staging', 'prod']).optional()
}),
env: z.object({
CI: z.string().optional(),
NODE_ENV: z.string().optional()
}),
secrets: z.object({
API_TOKEN: z.string(),
DATABASE_URL: z.string(),
REDIS_URL: z.string()
}),
secretPresets: {
api: ['API_TOKEN', 'DATABASE_URL'],
cache: ['REDIS_URL']
},
derivedEnvVars: {
API_TOKEN: {
API_BASE_URL: 'https://api.example.com',
API_VERSION: 'v1'
},
DATABASE_URL: {
DB_POOL_SIZE: '10'
}
}
})
`

`typescript
// Use in your Dagger module
import { Container, dag, func, object, Secret } from '@dagger.io/dagger'

@object()
export class MyModule {
@func()
async build(options: Secret): Promise {
const opts = await myDaggerEnv.parseDaggerOptions(options)
const { withEnv } = await myDaggerEnv.getWithEnv(options, ['api'], ['REDIS_URL'])

return withEnv(dag.container().from('node:18')).withExec(['npm', 'run', 'build']).sync()
}
}
`

Command Runner (1Password Integration)

For projects using 1Password for secret management, dagger-env provides a convenient command runner that integrates with op run:

`typescript
import { createDaggerEnv } from 'dagger-env'
import { createDaggerCommandRunner } from 'dagger-env/run'
import { z } from 'zod/v4'

// Create your DaggerEnv configuration
const myDaggerEnv = createDaggerEnv({
args: z.object({
environment: z.enum(['dev', 'staging', 'prod']).optional()
}),
env: z.object({
CI: z.string().optional(),
NODE_ENV: z.string().optional()
}),
secrets: z.object({
API_TOKEN: z.string()
}),
secretPresets: {
api: ['API_TOKEN']
},
derivedEnvVars: {}
})

// Create a command runner - simply pass your DaggerEnv instance
const runDaggerCommand = createDaggerCommandRunner({
opVault: 'your-vault-id',
opItem: 'your-item-id',
opSections: [
{
id: 'your-section-id',
label: 'Shared'
}
],
dockerCommands: ['build', 'deploy', 'test'],
daggerEnv: myDaggerEnv
})

// Run a Dagger command
await runDaggerCommand('test', {
args: { environment: 'dev' },
env: { NODE_ENV: 'development' }
})
`

$3

`typescript
// Advanced configuration with multiple sections and pre-command setup
const runDaggerCommand = createDaggerCommandRunner({
opVault: 'your-vault-id',
opItem: 'your-item-id',
opSections: [
{ id: 'shared-section-id', label: 'Shared' },
{ id: 'project-section-id', label: 'Project Specific' }
],
dockerCommands: ['build', 'deploy', 'test'],
beforeCommand: async () => {
// Setup vendor files, modules, etc.
console.log('Setting up environment...')
// await setupDaggerVendorFiles()
},
daggerEnv: myDaggerEnv
})
`

API Reference

$3

#### createDaggerEnv(config)

Creates a new DaggerEnv instance with the provided configuration.

Parameters:

- config.args: Zod schema for command-line arguments
- config.env: Zod schema for environment variables
- config.secrets: Zod schema for secrets
- config.secretPresets: Object mapping preset names to arrays of secret names
- config.derivedEnvVars: Object mapping secret names to derived environment variables

Returns: DaggerEnv instance

$3

Parses and validates dagger options from a Secret containing JSON.

Parameters:

- options: Dagger Secret containing JSON options

Returns: Promise> - Parsed and typed options object

$3

Creates a function that applies environment variables and secrets to a container.

Parameters:

- options: Secret or parsed options object
- secretPresets: Array of preset names to include (e.g., ['api', 'cache'])
- secretNames: Optional array of additional individual secret names

Returns: Promise<(con: Container) => Container> - Function that applies env vars and secrets

$3

Returns the Zod schema for the complete options object. Primarily used internally by the command runner, but available for advanced use cases.

Returns: ZodObject - The combined schema for args, env, and secrets

$3

Returns array of available secret preset names.

Returns: Array - Available preset names

$3

Returns array of secret names for a specific preset.

Parameters:

- preset: Name of the preset

Returns: readonly string[] - Secret names in the preset

$3

#### createDaggerCommandRunner(config)

Creates a function to run Dagger commands with 1Password integration.

Parameters:

- config.opVault: 1Password vault ID
- config.opItem: 1Password item ID
- config.opSections: Array of 1Password sections to include for secrets
- config.dockerCommands: Optional array of command names that should include Docker socket
- config.beforeCommand: Optional async function to run before executing the command
- config.daggerEnv: DaggerEnv instance for schema validation and type safety

Returns: (commandName: string, options?: RunDaggerCommandOptions) => Promise - Function to execute Dagger commands

#### RunDaggerCommandOptions

Options for individual command execution:

- args: Optional record of arguments to pass to the Dagger command
- env: Optional record of additional environment variables
- extraArgs: Optional array of additional command-line arguments

Configuration Examples

$3

`typescript
const apiServiceEnv = createDaggerEnv({
args: z.object({
push: z.string().optional()
}),
env: z.object({
CI: z.string().optional()
}),
secrets: z.object({
API_TOKEN: z.string(),
DATABASE_URL: z.string()
}),
secretPresets: {
api: ['API_TOKEN', 'DATABASE_URL']
} as const,
derivedEnvVars: {
API_TOKEN: {
API_BASE_URL: 'https://api.example.com'
}
} as const
})
`

$3

`typescript
const multiEnvDaggerEnv = createDaggerEnv({
args: z.object({
environment: z.enum(['dev', 'staging', 'prod']),
push: z.string().optional()
}),
env: z.object({
CI: z.string().optional()
}),
secrets: z.object({
DEV_API_KEY: z.string(),
STAGING_API_KEY: z.string(),
PROD_API_KEY: z.string()
}),
secretPresets: {
dev: ['DEV_API_KEY'],
staging: ['STAGING_API_KEY'],
prod: ['PROD_API_KEY']
} as const,
derivedEnvVars: {
DEV_API_KEY: { API_URL: 'https://dev-api.example.com' },
STAGING_API_KEY: { API_URL: 'https://staging-api.example.com' },
PROD_API_KEY: { API_URL: 'https://api.example.com' }
} as const
})
`

Type Extraction

For advanced use cases where you need to extract TypeScript types:

`typescript
import { z } from 'zod/v4'

import type { DaggerOptionsFromConfig } from 'dagger-env'

// Extract the options type from your DaggerEnv configuration
type MyDaggerEnvConfig = typeof myDaggerEnv extends DaggerEnv ? T : never
type MyOptions = DaggerOptionsFromConfig

// Access the schema if needed for validation or type extraction
const schema = myDaggerEnv.getOptionsSchema()
type SchemaOutput = z.output
`

Best Practices

1. Use as const for secretPresets and derivedEnvVars to ensure proper typing
2. Group related secrets into logical presets (e.g., api, database, cache)
3. Validate early by calling parseDaggerOptions()` at the start of functions
4. Reuse configurations across multiple Dagger modules in the same project
5. Document your schemas with JSDoc comments for better developer experience

Requirements

- Node.js 18+
- Dagger SDK
- Zod v4+

License

MIT

Contributing

Contributions are welcome! Please read our contributing guidelines and submit pull requests to our GitHub repository.