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vault-tpl - Templating vault secrets

vault-tpl is a CLI application that replaces some tokens with secrets from Vault. You can use it to store secrets inside your repository and have them decrypted for development, for deployment or for any other reasons.

Example

Input (secrets.yaml)

MYSQL_PASSWORD: (( vault "production/mysql:MYSQL_PASSWORD@1" ))
GCLOUD_CREDENTIALS: (( vault "production/google:*@1" ))

Command

vault-tpl secrets.yaml --write --output secrets-output.yaml

Output (secrets-output.yaml)

MYSQL_PASSWORD: hunter2
GCLOUD_CREDENTIALS: |-
  {
    "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
    "auth_uri": "https://accounts.google.com/o/oauth2/auth",
    "client_email": "",
    "client_id": "",
    "client_x509_cert_url": "",
    "private_key": "",
    "private_key_id": "",
    "project_id": "",
    "token_uri": "https://accounts.google.com/o/oauth2/token",
    "type": "service_account"
  }

Requirements

  • A reachable Vault installation, stored as VAULT_ADDR in your environment
  • A valid Vault token, stored as VAULT_TOKEN
  • Node 10+

Getting Started

yarn global add vault-tpl
vault-tpl --help

Why?

  • Authentication is handled by Vault so you don't have to mess with GPG keys
  • Supports Vault versioning, so secrets are immutable. If a secret has changed, it has to be modified in git also, to track accountability
  • Supports outputting specific keys in a secret, or the whole object. Useful for GCloud Credentials and other JSON keys

Thanks to