Automation tasks for building a certificate authority, creating and signing client/server certificates, and transforming certificates into different formats.

Scripts will be compiled and copied into the default Ansible module folder. The process assumes this folder is /usr/share/ansible. If this is not the location of your system's Ansible Module folder, please modify the script to point to the correct location. This script also assumes you have the correct permissions to write to the Ansible Module folder. If you don't use something like sudo, chmod, or chown to give yourself access.

INSTALL

sh build.sh && sh sync.sh

What they hell are you building?

In order to test the Python module outside of Ansible, you need to remove the module references. Unfortunately, you can import anything that's not already available in the host machine's Python environment. source/build.py simply replaces an import statement in the Ansible modules with the appropriate library (e.g. from certificate import Certificate gets replaced with the contents of source/certificate.py.

First you need to setup a CA in the specific format these scripts are expecting:

---

- name: Setup a CA
  ca: certdir="/etc/certs" subj="/DC=com/DC=example/CN=CA/"

Where, certdir is the root of the CA (you are responsible for making it) and subj is the valid OpenSSL subject of your CA.

To create a certificate, you simply need to reference the CA and provide the essential configuration:

---

- name: Create a Server Cert
  certificate: cadir="/etc/certs" hostname="server.example.com" subj="/DC=com/DC=example/CN=server/" p12password="{{some_env_var}}"

- name: Create a Client Cert
  certificate: cadir="/etc/certs" hostname="client.example.com" subj="/DC=com/DC=example/CN=client/" p12password="{{some_env_var}}" certtype="client"

Note: the default certtype is server, so you will need to specify client if you want a client certificate. The primary difference between server and client certs is that the certificate is generated with the -extensions server_ca_extensions or -extensions client_ca_extensions, respectively. The certificates will also be located in the appropriate directory (server or client) in the root of the CA directory. The following files are created during this process:

1. {{hostname}}.key.pem - the private key.
2. {{hostname}}.req.pem - the signing request.
3. {{hostname}}.cert.pem - the certificate signed by the CA.
4. {{hostname}}.keycert.pem - a file containing both the private key and certificate (we found this necessary for some applications using SSL).
5. {{hostname}}.keycert.p12 - the PKCS12 version of the key + cert pair.

It is your responsibility to move the certificates in and out of the CA directory. This script assume you will perform actions to protect the CA.

To remove a certificate you need to specify the state of the cert:

---

- name: Remove a Server Cert
  certificate: cadir="/etc/certs" hostname="server.example.com" subj="doesn't matter" p12password="blah!" state="absent"

This will not only delete the certificate, the private key, certificate request, PKCS12 file, and key-cert, but it will also revoke the certificate from the authority.

Deleting the CA functions similarly:

---

- name: Remove a CA
  ca: certdir="/etc/certs" subj="/CN=whatever/" state="absent"

This will cause the CA directory to be deleted (the script doesn't care that it didn't create the directory, so suck it up).

Finally, it's worth mentioning that there is another tool to generate a Java Truststore from an OpenSSL PEM.

Copyright (c) 2015 Richard Clayton

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