As an alternative to vRA Cloud Secrets
Well its been a while since I posted anything. To be honest, this site and posts were used to support my vExpert applications, but apparently blog content doesn’t count anymore. So…. now that I’m free from that obligation, I can just post because I want to.
This article details my efforts to understand how CyberArk and Ansible work together. My particular use case is to replace vRA Cloud secrets with variables stored in CyberArk. More specifically the issue with vRA secrets is they are limited to a single Project. This doesn’t work to well for a company with more than one project. Basically have one secret (mysecret) per project. Or if you have 10 projects, 10 secrets named mysecret (one for each project).
Now down to business. The first thing is to setup CyberArk following the instructions from their Quick Start tutorial. The basic setup is done by step 6, no real need to go past that unless you want to. A couple of notes here. First the Master Key (Step 2) and Admin api_key (Step 5) are saved to a text file on your docker host. And secondly, by default the SSL generated by the installer uses localhost, proxy, and 127.0.0.1 as the SAN. You can change this in conjur-quickstart/conf/tls/tls.conf. I’ll be using the default proxy as the hostname, along with some entries in /etc/hosts on my Mac and Ansible host.
Next I installed Cyberark CLI on my Mac. The instructions are available here. Note is is only supported on Windows, RHEL and Mac.
The setup file on my Mac for ~.conjurcli looks like this.
cert_file: /Users/me/conjur-server.pem
conjur_account: myConjurAccount
conjur_url: https://proxy:8443Now to define some CyberArk Conjur (conjur) policy files. The first was to define a new clean branch for my ansible policies. I called it mybranch (Hey it was Friday and I already used my weekly good braincell quota). I even used a creative name, ‘create-ansible-branch.yaml’.
- !policy
id: mybranchAnd to apply it (assuming you’ve already logged in as Admin).
mymac>conjur policy replace -b root -f create-ansible-branch.yaml
mymac>conjur list
[
"myConjurAccount:policy:mybranch",
"myConjurAccount:policy:root"
]Now on to defining the ansible host (ansible2)
- !layer
- !host ansible2
- !grant
role: !layer
member: !host ansible2
mymac>conjur policy load -b mybranch -f ansible2-host-policy.yamlThe result will contain an api_key for the new host. You’ll probably want to copy this into your scratch pad.
{
"created_roles": {
"myConjurAccount:host:mybranch/ansiblehost": {
"id": "myConjurAccount:host:mybranch/ansiblehost",
"api_key": "1xgpkp02d8etyz2zb........" # <--- api_key
}
},
"version": 2
}Now to create a new group, variable, and grant ansible2 permissions.
# Declare the secrets which are used to access the database
- &variables
- !variable password2
# Define a group which will be able to fetch the secrets
- !group secrets-users
- !permit
resource: *variables
# "read" privilege allows the client to read metadata.
# "execute" privilege allows the client to read the secret data.
# These are normally granted together, but they are distinct
# just like read and execute bits on a filesystem.
privileges: [ read, execute ]
roles: !group secrets-users
# Entitlements
- !grant
role: !group secrets-users
member: !layer /mybranch
mymac>conjur policy load -b mybranch -f ansible2-access-policy.yaml
### Set the password variable value
mymac>conjur variable set -i mybranch/password2 -v "HelloWorld"Our work with CyberArk is done for the time being. Now on to your ansible host. Here the assumption is our ansible host is setup properly. First install the Cyberark.conjur collection.
ubunutu@ansible2$ansible-galaxy collection install cyberark.conjurNow to define some files on your ansible host. The file names and content are shown below. You can figure out how to get the contents of conjur.pem.
/etc/conjur.conf
account: myConjurAccount
appliance_url: https://proxy:8443
cert_file: /etc/conjur.pem
netrc_path: /etc/conjur.identity
plugins: []
/etc/conjur.identity
machine https://proxy:8443/authn
login host/mybranch/ansible2
password gybp2n1wssmh1fr8n5k27.........
/etc/conjur.pem
-----BEGIN CERTIFICATE-----
.......
-----END CERTIFICATE-----Almost there, now to define and run a basic ansible playbook. And by basic, I mean basic.
# get_conjur_var.yaml
---
- hosts: localhost
tasks:
- name: Lookup variable in Conjur
debug:
msg: "{{ lookup('cyberark.conjur.conjur_variable', 'mybranch/password2') }}"
ubunutu@ansible2$ansible-playbook get_conjur_var.yaml
....
ok: [localhost] => {
"msg": "HelloWorld"
}
....The next article will demonstrate how to use this with vRA cloud to replace all those repetitive secrets (Per project, Yuk!)
{!aCoder} 