Pre-authentication keys (“auth keys” for short) let you authenticate the Encore CLI without needing to sign in via a web browser. This is most useful when setting up CI/CD pipelines.
Reusable Keys for authenticating more than one machine.
Ephemeral Keys - Machines authenticated by this key will be automatically logged out after one our.
Be very careful with reusable keys! These can be very dangerous if stolen. They're best kept in a key vault product (eg. 1Password, LastPass) specifically designed for the purpose.
Auth keys authenticate a machine as the Encore app for which the key was generated. If Ada generates an auth key, and uses it to set up her CI/CD pipeline, then that machine is authenticated as Ada's Encore app.
As an Encore user, visit the auth key page by going to Your apps > (Select your app) > App Settings > Auth Keys.
A key can be both reusable and ephemeral at the same time (you can decide the combination based on your particular use case).
Don't forget to store your key! Once generated, you will need to copy and store your key in a vault product (eg. 1Password, LastPass). We do not display the full contents of a key in our dashboard for security reasons.
This page also gives you the ability to revoke existing keys.
Using the Encore CLI, you can authenticate with your newly generated key:
$ encore auth login --auth-key=ena_nEQIkfeM43t7oxpleMsIULbhbtLAbYnnLf1D
You can revoke a key simply by pressing the Delete button next to it. This will prevent any machines currently using it to authenticate to the Encore platform (regardless of the key type).