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PDX Ruby Brigade Credentials

We're using Mozilla's sops to encrypt the credentials.

Prerequisites

If you do not already have a GPG key, install gpg2 and create a 4096 RSA key.

Optionally, you can upload the PUBLIC key to a keyserver; for example MIT's key server. (It does not matter what keyserver, as long as the keyserver is in the keyserver pool). Then at the next PDX Ruby Meetup, bring a valid ID and several paper copies of your PUBLIC GPG key fingerprint to exchange; so that other GPG key holders can later digitally sign your key and you theirs.

Note, there are some file storage changes between versions 1 and 2 of gpg; recent versions of sops fixed compatibility issues (August 2017, version 2.0.10). However, there are still GitHub Issues and links on the web citing problems and some common error messages can be a little confusing referencing files that gpg2 does not create.

NB: be sure to update your environmental vars (in for example a .bashrc, .bash_profile, or .zshrc) with

GPG_TTY=$(tty)
export GPG_TTY

otherwise sops will not be able to find your secret key for decryption/encryption.

sops itself can be installed via homebrew on macOSX; rpms, debs, and exes are available on the sops repo.

Getting Access

Issue a pull request and add your name, github ID, and PUBLIC GPG key fingerprint to the fingerprints.txt . You can find your public fingerprint by running

> gpg --list-keys

/Users/jesse/.gnupg/pubring.kbx
-------------------------------
pub   rsa4096 2014-10-27 [SC]
      820A5BE1B38C55E51C2CA163FA065807F03AB48B
uid           [ unknown] Jesse Cooke <[email protected]>
uid           [ unknown] keybase.io/jc00ke <[email protected]>
sub   rsa4096 2014-10-27 [E]

In this example, the fingerprint is 820A5BE1B38C55E51C2CA163FA065807F03AB48B, so you would append Jesse Cooke - @jc00ke: 820A5BE1B38C55E51C2CA163FA065807F03AB48B to fingerprints.txt.

If you only need access to certain credentials, please state so in the PR.

Decrypting files

SEE NOTE ABOUT ENVIRONMENTAL VARIABLES

Once your pull request has been accepted and the repo updated, simply

sops -d twitter.yaml

NB: always remember to tweet responsibly :)

Adding and removing keys

For more info, see sops#adding-and-removing-keys but the commands are:

This would add Jesse's key only for the twitter.yaml file.

sops -r -i --add-pgp 820A5BE1B38C55E51C2CA163FA065807F03AB48B twitter.yaml

Note: If the public key being added is on a keyserver, it'll get pulled in automatically. If not, it needs to be in the local keyring.

This would remove Jesse's key only for the twitter.yaml file.

sops -r -i --rm-pgp 820A5BE1B38C55E51C2CA163FA065807F03AB48B twitter.yaml

Key rotation

Make sure to add the -r flag so the data key will be rotated, especially when removing a key. This will prevent owners of the removed key from having add access in the past.

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PDX Ruby Brigade credentials via sops

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