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Chapter 3. Using Ansible to manage IdM user vaults: storing and retrieving secrets

This chapter describes how to manage user vaults in Identity Management using the Ansible vault module. Specifically, it describes how a user can use Ansible playbooks to perform the following three consecutive actions:

The user can do the storing and the retrieving from two different IdM clients.

Prerequisites

3.1. Ensuring the presence of a standard user vault in IdM using Ansible

Follow this procedure to use an Ansible playbook to create a vault container with one or more private vaults to securely store sensitive information. In the example used in the procedure below, the idm_user user creates a vault of the standard type named my_vault. The standard vault type ensures that idm_user will not be required to authenticate when accessing the file. idm_user will be able to retrieve the file from any IdM client to which the user is logged in.

Prerequisites

  • You have configured your Ansible control node to meet the following requirements:

    • You are using Ansible version 2.13 or later.
    • You have installed the ansible-freeipa package.
    • The example assumes that in the ~/MyPlaybooks/ directory, you have created an Ansible inventory file with the fully-qualified domain name (FQDN) of the IdM server.
  • The target node, that is the node on which the ansible-freeipa module is executed, is part of the IdM domain as an IdM client, server or replica.
  • You know the password of idm_user.

Procedure

  1. Navigate to the MyPlaybooks directory: 

    $ cd ~/MyPlaybooks/
    Copy to Clipboard

  2. Make a copy of the /usr/share/doc/ansible-freeipa/playbooks/vault/ensure-standard-vault-is-present.yml Ansible playbook file. For example: 

    $ cp /usr/share/doc/ansible-freeipa/playbooks/vault/ensure-standard-vault-is-present.yml ensure-standard-vault-is-present-copy.yml
    Copy to Clipboard
  3. Open the ensure-standard-vault-is-present-copy.yml file for editing.

  4. Adapt the file by setting the following variables in the ipavault task section:

    • Set the ipaadmin_principal variable to idm_user.
    • Set the ipaadmin_password variable to the password of idm_user.
    • Set the user variable to idm_user.
    • Set the name variable to my_vault.

    • Set the vault_type variable to standard.

      This the modified Ansible playbook file for the current example: 

    ---
- name: Tests
  hosts: ipaserver
  gather_facts: false

  tasks:
  - ipavault:
      ipaadmin_principal: idm_user
      ipaadmin_password: idm_user_password
      user: idm_user
      name: my_vault
      vault_type: standard
    Copy to Clipboard
  5. Save the file.

  6. Run the playbook: 

    $ ansible-playbook -v -i inventory.file ensure-standard-vault-is-present-copy.yml
    Copy to Clipboard

3.2. Archiving a secret in a standard user vault in IdM using Ansible

Follow this procedure to use an Ansible playbook to store sensitive information in a personal vault. In the example used, the idm_user user archives a file with sensitive information named password.txt in a vault named my_vault.

Prerequisites

  • You have configured your Ansible control node to meet the following requirements:

    • You are using Ansible version 2.13 or later.
    • You have installed the ansible-freeipa package.
    • The example assumes that in the ~/MyPlaybooks/ directory, you have created an Ansible inventory file with the fully-qualified domain name (FQDN) of the IdM server.
  • The target node, that is the node on which the ansible-freeipa module is executed, is part of the IdM domain as an IdM client, server or replica.
  • You know the password of idm_user.
  • idm_user is the owner, or at least a member user of my_vault.
  • You have access to password.txt, the secret that you want to archive in my_vault.

Procedure

  1. Navigate to the MyPlaybooks directory: 

    $ cd ~/MyPlaybooks/
    Copy to Clipboard

  2. Make a copy of the /usr/share/doc/ansible-freeipa/playbooks/vault/data-archive-in-symmetric-vault.yml Ansible playbook file. For example: 

    $ cp /usr/share/doc/ansible-freeipa/playbooks/vault/data-archive-in-symmetric-vault.yml data-archive-in-symmetric-vault-copy.yml
    Copy to Clipboard
  3. Open the data-archive-in-standard-vault-copy.yml file for editing.

  4. Adapt the file by setting the following variables in the ipavault task section:

    • Set the ipaadmin_principal variable to idm_user.
    • Set the ipaadmin_password variable to the password of idm_user.
    • Set the user variable to idm_user.
    • Set the name variable to my_vault.
    • Set the in variable to the full path to the file with sensitive information.

    • Set the action variable to member.

      This the modified Ansible playbook file for the current example: 

    ---
- name: Tests
  hosts: ipaserver
  gather_facts: false

  vars_files:
  - /home/user_name/MyPlaybooks/secret.yml
  tasks:
  - ipavault:
      ipaadmin_principal: idm_user
      ipaadmin_password: idm_user_password
      user: idm_user
      name: my_vault
      in: /usr/share/doc/ansible-freeipa/playbooks/vault/password.txt
      action: member
    Copy to Clipboard
  5. Save the file.

  6. Run the playbook: 

    $ ansible-playbook -v -i inventory.file data-archive-in-standard-vault-copy.yml
    Copy to Clipboard

3.3. Retrieving a secret from a standard user vault in IdM using Ansible

Follow this procedure to use an Ansible playbook to retrieve a secret from the user personal vault. In the example used in the procedure below, the idm_user user retrieves a file with sensitive data from a vault of the standard type named my_vault onto an IdM client named host01. idm_user does not have to authenticate when accessing the file. idm_user can use Ansible to retrieve the file from any IdM client on which Ansible is installed.

Prerequisites

  • You have configured your Ansible control node to meet the following requirements:

    • You are using Ansible version 2.13 or later.
    • You have installed the ansible-freeipa package.
    • The example assumes that in the ~/MyPlaybooks/ directory, you have created an Ansible inventory file with the fully-qualified domain name (FQDN) of the IdM server.
  • The target node, that is the node on which the ansible-freeipa module is executed, is part of the IdM domain as an IdM client, server or replica.
  • You know the password of idm_user.
  • idm_user is the owner of my_vault.
  • idm_user has stored a secret in my_vault.
  • Ansible can write into the directory on the IdM host into which you want to retrieve the secret.
  • idm_user can read from the directory on the IdM host into which you want to retrieve the secret.

Procedure

  1. Navigate to the MyPlaybooks directory: 

    $ cd ~/MyPlaybooks/
    Copy to Clipboard

  2. Make a copy of the /usr/share/doc/ansible-freeipa/playbooks/vault/data-archive-in-symmetric-vault.yml Ansible playbook file. For example: 

    $ cp /usr/share/doc/ansible-freeipa/playbooks/vault/retrive-data-symmetric-vault.yml retrieve-data-symmetric-vault-copy.yml
    Copy to Clipboard

  3. Open your inventory file and mention, in a clearly defined section, the IdM client onto which you want to retrieve the secret. For example, to instruct Ansible to retrieve the secret onto host01.idm.example.com, enter: 

    [ipahost]
host01.idm.example.com
    Copy to Clipboard
  4. Open the retrieve-data-standard-vault.yml-copy.yml file for editing.
  5. Adapt the file by setting the hosts variable to ipahost.

  6. Adapt the file by setting the following variables in the ipavault task section:

    • Set the ipaadmin_principal variable to idm_user.
    • Set the ipaadmin_password variable to the password of idm_user.
    • Set the user variable to idm_user.
    • Set the name variable to my_vault.
    • Set the out variable to the full path of the file into which you want to export the secret.

    • Set the state variable to retrieved.

      This the modified Ansible playbook file for the current example: 

    ---
- name: Tests
  hosts: ipahost
  gather_facts: false

  vars_files:
  - /home/user_name/MyPlaybooks/secret.yml
  tasks:
  - ipavault:
      ipaadmin_principal: idm_user
      ipaadmin_password: idm_user_password
      user: idm_user
      name: my_vault
      out: /tmp/password_exported.txt
      state: retrieved
    Copy to Clipboard
  7. Save the file.

  8. Run the playbook: 

    $ ansible-playbook -v -i inventory.file retrieve-data-standard-vault.yml-copy.yml
    Copy to Clipboard

Verification

  1. SSH to host01 as user01: 

    $ ssh user01@host01.idm.example.com
    Copy to Clipboard

  2. View the file specified by the out variable in the Ansible playbook file: 

    $ vim /tmp/password_exported.txt
    Copy to Clipboard

You can now see the exported secret.

Additional resources

  • For more information about using Ansible to manage IdM vaults and user secrets and about playbook variables, see the README-vault.md Markdown file available in the /usr/share/doc/ansible-freeipa/ directory and the sample playbooks available in the /usr/share/doc/ansible-freeipa/playbooks/vault/ directory.
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