automatoes 0.9.4

Let's Encrypt/ACME V2 client replacement for Manuale. Manual or automated your choice.

Candango Automat-o-es

Automatoes is a Let's Encrypt/ACME client for advanced users and developers. It is intended to be used by anyone because we don't care if you're a robot, a processes or a person.

We will keep the manuale command to provide manual workflow designed by the original project and to be a direct replacement from ManuaLE.

Why?

Bacause Let's Encrypt's point is to be automatic and seamless and ManuaLE was designed to be manual.

Automatoes will add automatic workflows and new features to evolve ManuaLe's legacy. The project also will keep performing maintenance tasks as bug fixes and refactory.

Automatoes is an ACME V2 replacement to ManuaLE.

Features

• Simple interface with no hoops to jump through. Keys and certificate signing requests are automatically generated: no more cryptic OpenSSL one-liners. (However, you do need to know what to do with generated certificates and keys yourself!)

• Support for DNS & HTTP validation. No need to figure out how to serve challenge files from a live domain.

• Obviously, runs without root access. Use it from any machine you want, it doesn't care. Internet connection recommended.

• Awful, undiscoverable name.

• And finally, if the openssl binary is your spirit animal after all, you can still bring your own keys and/or CSR's. Everybody wins.

Installation

Python 3.5 or above is required.

Using your package manager

• TO DO

• Package maintainers wanted: your package here?

Using pip

You can install the package from PyPI using the pip tool. To do so, run pip3 install automatoes.

If you're not using Windows or OS X pip may need to compile some of the dependencies. In this case, you need a compiler and development headers for Python, OpenSSL and libffi installed.

On Debian-based distributions, these will typically be gcc python3-dev libssl-dev libffi-dev, and on RPM-based distributions gcc python3-devel openssl-devel libffi-devel.

From the git repository

git clone https://github.com/candango/automatoes ~/.automatoes
cd ~/.automatoes
python3 -m venv env
env/bin/python setup.py install
ln -s env/bin/manuale ~/.bin/

(Assuming you have a ~/.bin/ directory in your $PATH).

Quick start

Register an account (once):

$ manuale register [e-mail]

Authorize one or more domains:

$ manuale authorize example.com
DNS verification required. Make sure these records are in place:
  _acme-challenge.example.com. IN TXT "(some random gibberish)"
Press Enter to continue.
...
1 domain(s) authorized. Let's Encrypt!

Get your certificate:

$ manuale issue --output certs/ example.com
...
Certificate issued.

Expires: 2016-06-01
 SHA256: (more random gibberish)

Wrote key to certs/example.com.pem
Wrote certificate to certs/example.com.crt
Wrote certificate with intermediate to certs/example.com.chain.crt
Wrote intermediate certificate to certs/example.com.intermediate.crt

Set yourself a reminder for renewal!

Usage

You need to create an account once. To do so, call manuale register [email]. This will create a new account key for you. Follow the registration instructions.

Once that's done, you'll have your account saved in account.json in the current directory. You'll need this to do anything useful. Oh, and it contains your private key, so keep it safe and secure.

manuale expects the account file to be in your working directory by default, so you'll probably want to make a specific directory to do all your certificate stuff in. Likewise, created certificates get saved in the current path by default.

Next up, verify the domains you want a certificate for with manuale authorize [domain]. This will show you the DNS records you need to create and wait for you to do it. For example, you might do it for example.com and www.example.com.

Once that's done, you can finally get down to business. Run manuale issue example.com www.example.com to get your certificate. It'll save the key, certificate and certificate with intermediate to the working directory.

There's plenty of documentation inside each command. Run manuale -h for a list of commands and manuale [command] -h for details.

Something different from ManuaLE?

Yes and no. Mostly yes, in the background.

Automatoes provides a manuale command replacement and a new automatoes command that will be added in the future.

The manuale command will interface ACME V2 only as V1 is reaching End Of Life.

The account file structure from ManuaLE is maintained, no change here.

For Let's Encrypt servers it is necessary to change the uri from V1 api to V2. With #30 we'll warn you about your uri being Let's Encrypt ACME V1 and run with a correct ACME V2 without fixing the account.json file.

To fix the account.json file permanently run manuale upgrade and after confirmation your account uri will be changed to the Let's Encrypt ACME V2 uri.

The upgrade action will only act against an account uri from production Let's Encrypt ACME V1 otherwise nothing will be executed.

ACME V2 works with an order workflow that must be fulfilled. Automatoes will mimic orders in a file structure locally for better control.

The manuale command will handle orders following the original project workflow with minimal changes.

The automatoes command will be order based, let's talk about that when released.

Here is what happens in the background(manuale replacement):

manuale authorize domain.com other.domain.com

1. /acme/new-order is called and order file is stored locally at working_directory/orders/<sha256sum(domain.com other.domain.com)>/order.json
2. /acme/authz/challenge1 and /acme/authz/challenge2 are called and stored at working_directory/orders/<sha256sum(domain.com other.domain.com)>
3. the file name for challenges will be _challenge.json
4. you fulfill all challenges either by dns or http, dns is default. Just saying... you know the drill right? Same as before.
5. manuale the Let's Encrypt! message and you can issue the certificate

• If any challenge fails we delete the order file as the order will be set as invalid in the server. Invalid orders are considered fulfilled and not pending, we can discard them.
• If you hit Ctrl+c, the order will start from the server state as we can continue to process from the local file stored. Even challenges will be maintained, in a case when one challenge is validated and 2 are pending, if a Ctrl+c was hit, were recognize that in the next attempt.
• If you call issue and there is an existent invalid order file than we delete the order and a new one is created.

manuale issue domain.com other.domain.com

1. /acme/order/<order_id>/finalize is called with the pem generated or the one provided by you
2. /acme/cert/<cert_id> is called and we place keys like we use to do before
3. we're done!

• If you try to issue certificates for a domain sequence and an oder is pending or invalid, automatoes will ask you to run authorize before.

After authorizing a domain sequence you need run issue with the same domain sequence because:

1. The order file is stored at working_directory/orders/<sha256sum(domain.com other.domain.com)> if we change the domain sequence a new order file will be created at working_directory/orders/<sha256sum(other.domain.com domain.com)>
2. The acme V2 order finalize call also requires something like this as described at rfc8555 section-7.4:

A request to finalize an order will result in an error if the CA is unwilling to issue a certificate corresponding to the submitted CSR. For example:

• If the CSR and order identifiers differ <--- TALKING ABOUT THIS

• If the account is not authorized for the identifiers indicated in the CSR

• If the CSR requests extensions that the CA is not willing to include

Trying to keeping thing as KISS as possible we can complicate things later. Now we need ACME V2.

To create a certificate for a domain sequence authorized by a previous order just:

1. call authorize again. Chances are that no challenge will be needed but it depends on the ACME V2 server implementation.
2. fulfill challenge(s) if needed
3. call issue with same domain sequence authorize
4. we're done!

In another words, a domain sequence defines the order identifier locally.

The sha256sum command from coreutils can be used if you have a bash script to monitor manuale execution:

> echo "domain.com other.domain.com" | sha256sum
83ccaf9441b1abea98837e2f4c2fc18122c0e9ee4e39dd1995387f4d5d495b69  -

> echo "other.domain.com domain.com" | sha256sum
d0bd2c4957537572ffb7150a7dc89e61f44f9ab603b75be481118e37ec5a6163  -

Storing meta files at working_directory/orders directory will let you automate things better. Don't delete those files let Automatoes handle them for you.

Here are more some features we can explore with this local file structure in the future:

• control and advise about limits, as Acme V2 enforce limits for opened orders per account
• list orders and status (for pending orders)
• create partial authorizations (that will be on automatoes command not in manuale)
• SDK?
• Can you imagine more? Create a feature request for us.

Also the manuale command can be called with a verbose parameter(-v) right now providing more output.

See also

• Best practices for server configuration
• Configuration generator for common servers
• Test your server
• Other clients

Support

For direct support join gitter chat at https://gitter.im/candango/automatoes.

Automatoes is one of Candango Open Source Group initiatives. Available under the Apache License, Version 2.0.

This web site and all documentation is licensed under Creative Commons 3.0.

Copyright © 2019-2020 Flavio Garcia

Copyright © 2016-2017 Veeti Paananen under MIT License