Ansible Modules for Hashicorp Vault
Project description
Ansible modules for Hashicorp Vault.
Install this Ansible module:
via pip:
pip install ansible-modules-hashivault
via ansible-galaxy (requires hvac>=0.7.2):
ansible-galaxy install 'git+https://github.com/TerryHowe/ansible-modules-hashivault.git'
Note: The hashicorp lookup plugin does not work with this last install method (ansible/ansible#28770). You can fallback to the build-in lookup plugin: hashi_vault
In most cases the Hashicorp Vault modules should be run on localhost.
Environmental Variables
The following variables need to be exported to the environment where you run ansible in order to authenticate to your HashiCorp Vault instance:
VAULT_ADDR: url for vault
VAULT_SKIP_VERIFY=true: if set, do not verify presented TLS certificate before communicating with Vault server. Setting this variable is not recommended except during testing
VAULT_AUTHTYPE: authentication type to use: token, userpass, github, ldap, approle
VAULT_LOGIN_MOUNT_POINT: mount point for login defaults to auth type
VAULT_TOKEN: token for vault
VAULT_ROLE_ID: (required by approle)
VAULT_SECRET_ID: (required by approle)
VAULT_USER: username to login to vault
VAULT_PASSWORD: password to login to vault
VAULT_CLIENT_KEY: path to an unencrypted PEM-encoded private key matching the client certificate
VAULT_CLIENT_CERT: path to a PEM-encoded client certificate for TLS authentication to the Vault server
VAULT_CACERT: path to a PEM-encoded CA cert file to use to verify the Vault server TLS certificate
VAULT_CAPATH: path to a directory of PEM-encoded CA cert files to verify the Vault server TLS certificate
VAULT_AWS_HEADER: X-Vault-AWS-IAM-Server-ID Header value to prevent replay attacks
VAULT_NAMESPACE: specify the Vault Namespace, if you have one
Documentation
There are a few simple examples in this document, but the full documentation can be found at:
https://terryhowe.github.io/ansible-modules-hashivault/modules/list_of_hashivault_modules.html
Reading and Writing
The following example writes the giant secret with two values and then reads the fie value. The hashivault_secret module is kv2 by default:
---
- hosts: localhost
tasks:
- hashivault_secret:
secret: giant
data:
foo: foe
fie: fum
- hashivault_read:
secret: giant
key: fie
version: 2
register: vault_read
The lookup plugin:
- set_fact:
looky: "{{lookup('hashivault', 'giant', 'foo', version=2)}}"
The hashivault_write, hashivault_read and the lookup plugin assume the /secret mount point. If you are accessing another mount point, use mount_point:
---
- hosts: localhost
tasks:
- hashivault_secret_engine:
name: stories
backend: generic
- hashivault_write:
mount_point: /stories
secret: stuart
data:
last: 'little'
- hashivault_read:
mount_point: /stories
secret: stuart
key: last
- set_fact:
book: "{{lookup('hashivault', 'stuart', 'last', mount_point='/stories')}}"
Version 2 of KV secret engine is also supported, just add version: 2:
---
- hashivault_read:
mount_point: /stories
version: 2
secret: stuart
key: last
- set_fact:
book: "{{lookup('hashivault', 'stuart', 'last', mount_point='/stories', version=2)}}"
Initialization, Seal, and Unseal
The real strength of this module is all the administrative functions you can do. See the documentation mentioned above for more, but here is a small sample.
You may init the vault:
---
- hosts: localhost
tasks:
- hashivault_init:
register: vault_init
You may also seal and unseal the vault:
---
- hosts: localhost
vars:
vault_keys: "{{ lookup('env','VAULT_KEYS') }}"
tasks:
- hashivault_status:
register: vault_status
- block:
- hashivault_seal:
register: vault_seal
when: "{{vault_status.status.sealed}} == False"
- hashivault_unseal:
keys: '{{vault_keys}}'
Action Plugin
If you are not using the VAULT_ADDR and VAULT_TOKEN environment variables, you may be able to simplify your playbooks with an action plugin. This can be some somewhat similar to this example action plugin.
Developer Note
One of the complicated problems with development and testing of this module is
ansible/module_utils/hashivault.py is not a directory in itself which
in my opinion is a problem with ansible. Because of this limitation with
ansible, pip install -e . does not work like it would for other
projects. Two potential ways to work around this issue are either use the
link.sh script in the top level directory or run for every change:
rm -rf dist; python setup.py sdist pip install ./dist/ansible-modules-hashivault-*.tar.gz
License
MIT.
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