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feat: add a more concise admin guide for wazuh
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‎source/include/wazuh_ansible.rst‎

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One of method for deploying Wazuh is with the use of the official Ansible playbooks, integrated into a Kayobe Config.
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One of methods for deploying and maintaining Wazuh is with the use of the official Ansible playbooks, integrated into a Kayobe Config.
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Hosts & Groups
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--------------
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To begin the deployment of Wazuh we must first configure our hosts and groups definitions.
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Firstly, we can edit the groups under ``etc/kayobe/inventory/groups`` to define the related Wazuh groups.
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.. code-block:: ini
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[infra-vms:children]
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wazuh-master
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[wazuh:children]
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wazuh-master
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wazuh-agent
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[wazuh-master]
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[wazuh-agent]
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[wazuh-agent:children]
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Secondly, we can edit the hosts file found ``etc/kayobe/inventory/hosts`` to associate membership between hosts and groups.
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.. code-block:: ini
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[wazuh-master]
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wazuh-master-01
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Configuring Wazuh Manager
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-------------------------
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[wazuh-agent]
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Wazuh manager can easily be configured by editing the ``wazuh-manager.yml`` groups vars file found at ``etc/kayobe/inventory/group_vars/wazuh-master/``.
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This file gives you control over various important aspects of the Wazuh manager.
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Most notably;
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*domain_name*:
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the domain used by Search Guard CE when generating certificates.
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Provision infra-vm & install roles
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----------------------------------
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*wazuh_manager_ip*:
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the IP address that the wazuh manager shall reside on for communicating with the agents.
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With the hosts and groups files created we can begin to provision the infra-vm as well install the Wazuh Ansible role.
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*wazuh_manager_connection*:
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used to define port and protocol for the manager to be listening on.
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To provision the infra-vm we can use the kayobe command ``kayobe infra vm provision``.
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Once completed we can then install the Wazuh Ansible role we can be achieved by adding the role definition to the ``etc/kayobe/ansible/requirements.yml``.
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*wazuh_manager_authd*:
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connection settings for the daemon responsible for registering new agents.
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.. code-block:: yaml
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Running ``kayobe playbook run $KAYOBE_CONFIG_PATH/ansible/wazuh-manager.yml`` will deploy these changes.
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Secrets
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-------
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roles:
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- src: https://github.com/stackhpc/wazuh-ansible.git
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version: v4.2.3-opendistro-ubuntu
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Wazuh requires that secrets or passwords are set for itself and the services it communiticates with.
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The playbook ``etc/kayobe/ansible/wazuh-secrets.yml`` automates the creation of these secrets which can then be encrypted with Ansible Vault.
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Once added we can then perform a ``kayobe control host bootstrap`` which shall install this role and any other missing roles.
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To update the secrets you can execute the following two commands
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Configuring Wazuh Manager
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-------------------------
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.. code-block:: console
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:substitutions:
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We are almost ready to deploy Wazuh manager.
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However, before we can, we must first download the Wazuh manager playbook which can be done by downloading ``https://raw.githubusercontent.com/stackhpc/kayobe-ops/master/wazuh-manager.yml`` into ``etc/kayobe/ansible/wazuh-manager.yml``.
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Once downloaded it is recommended you make any changes your deployment/environment requires.
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kayobe# kayobe playbook run $KAYOBE_CONFIG_PATH/ansible/wazuh-secrets.yml -e wazuh_user_pass=$(uuidgen) -e wazuh_admin_pass=$(uuidgen)
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kayobe# ansible-vault encrypt --vault-password-file |vault_password_file_path| $KAYOBE_CONFIG_PATH/inventory/group_vars/wazuh-master/wazuh-secrets.yml
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Next we must create the group varibles for the `wazuh-master` group.
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This can be easily accomplished by first creating a directory ``etc/kayobe/inventory/group_vars/wazuh-master/`` which is where we shall download the next two files to.
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Once generated you can run ``kayobe playbook run $KAYOBE_CONFIG_PATH/ansible/wazuh-manager.yml`` which shall copy the secrets into place.
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``https://raw.githubusercontent.com/stackhpc/kayobe-ops/master/vars/elasticsearch-custom.yml``
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.. note:: If you need to view the secrets it is recommended you use ``ansible-vault view --vault-password-file ~/vault.password``
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``https://raw.githubusercontent.com/stackhpc/kayobe-ops/master/vars/wazuh-manager.yml``
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Adding a New Agent
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------------------
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When adding a new host it should be automically picked up by the ``wazuh-agent:children`` group in ``etc/kayobe/inventory/groups`` as it would be included in the ``overcloud`` member.
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Feel free to modify any of the varibles within these files.
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It is expected that you would want to edit the following varibles:
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.. code-block:: ini
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* domain_name
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[wazuh-agent:children]
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seed
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overcloud
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* wazuh_manager_ip
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Running the follow playbook ``kayobe playbook run $KAYOBE_CONFIG_PATH/ansible/wazuh-agent.yml`` will deploy the agent to the new host.
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This should automatically be registered and accessible within the Wazuh manager dashboard.
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Secrets
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-------
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The playbook ``wazuh-agent.yml`` can be setup as a hook within kayobe, which will automatically run either pre or post a given kayobe command.
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See `here <https://docs.openstack.org/kayobe/wallaby/custom-ansible-playbooks.html#hooks>`_ for more details.
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We must ensure that Wazuh has access to a set secrets for all of the services it interacts with.
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To automate this process we can use an Ansible playbook and template.
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First create a playbook called ``etc/kayobe/ansible/wazuh-secrets.yml`` and add the following contents to it.
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.. code-block:: yaml
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---
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- hosts: localhost
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gather_facts: false
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vars:
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wazuh_secrets_path: "{{ kayobe_env_config_path }}/inventory/group_vars/wazuh/wazuh-secrets.yml"
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tasks:
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- name: install passlib[bcrypt]
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pip:
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name: passlib[bcrypt]
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virtualenv: "{{ ansible_playbook_python | dirname | dirname }}"
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- name: Include existing secrets if they exist
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include_vars: "{{ wazuh_secrets_path }}"
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ignore_errors: true
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- name: Ensure secrets directory exists
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file:
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path: "{{ wazuh_secrets_path | dirname }}"
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state: directory
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- name: Template new secrets
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template:
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src: wazuh-secrets.yml.j2
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dest: "{{ wazuh_secrets_path }}"
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Then proceed to create a template in ``etc/kayobe/templates/wazuh-secrets.yml.j2`` with the following contents.
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.. code-block:: jinja
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---
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{% set wazuh_admin_pass = secrets_wazuh.wazuh_admin_pass | default(lookup('password', '/dev/null'), true) -%}
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{%- set wazuh_user_pass = secrets_wazuh.wazuh_user_pass | default(lookup('password', '/dev/null'), true) -%}
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# Secrets used by Wazuh managers and agents
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# Store these securely and use lookups here
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secrets_wazuh:
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# Wazuh agent authd pass
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authd_pass: "{{ secrets_wazuh.authd_pass | default(lookup('password', '/dev/null'), true) }}"
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# Strengthen default wazuh api user pass
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wazuh_api_users:
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- username: "wazuh"
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password: "{{ secrets_wazuh.wazuh_api_users[0].password | default(lookup('password', '/dev/null length=30' ), true) }}"
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# Elasticsearch 'admin' user pass
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opendistro_admin_password: "{{ secrets_wazuh.opendistro_admin_password | default(lookup('password', '/dev/null'), true) }}"
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# Elasticsearch 'kibanaserver' user pass
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opendistro_kibana_password: "{{ secrets_wazuh.opendistro_kibana_password | default(lookup('password', '/dev/null'), true) }}"
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# Wazuh/Kibana 'wazuh_admin' custom user pass
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wazuh_admin_pass: "{{ wazuh_admin_pass }}"
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# Wazuh/Kibana 'wazuh_admin' custom user pass has
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# bcrypt ($2y) hash
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wazuh_admin_hash: "{{ secrets_wazuh.wazuh_admin_hash | default(wazuh_admin_pass | password_hash('bcrypt'), true) }}"
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# Wazuh/Kibana 'wazuh_user' custom user pass
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# bcrypt ($2y) hash
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wazuh_user_pass: "{{ wazuh_user_pass }}"
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wazuh_user_hash: "{{ secrets_wazuh.wazuh_user_hash | default(wazuh_user_pass | password_hash('bcrypt'), true) }}"
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And finally, run the following commands to generate and encrypt the secrets.
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.. code-block:: bash
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kayobe playbook run $KAYOBE_CONFIG_PATH/ansible/wazuh-secrets.yml -e wazuh_user_pass=$(uuidgen) -e wazuh_admin_pass=$(uuidgen)
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ansible-vault encrypt --vault-password-file ~/vault.pass $KAYOBE_CONFIG_PATH/inventory/group_vars/wazuh-master/wazuh-secrets.yml
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.. note:: you must have a vault password store outside the source control directory in a file called `vault.pass`
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Deploying Wazuh Manager
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Accessing Wazuh Manager
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-----------------------
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It is now time to deploy Wazuh manager.
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This can be achieved with one simple command. ``kayobe playbook run $KAYOBE_CONFIG_PATH/ansible/wazuh-manager.yml``
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To access the Wazuh manager dashboard, navigate to the ip address of the |wazuh_master_name| (|wazuh_master_url|).
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You can login to the dashboard with the username ``admin`` and the password for ``opendistro_admin_password`` which can be found within ``etc/kayobe/inventory/group_vars/wazuh-master/wazuh-secrets.yml``.
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Once the playbook is finished running you should be able to access the Wazuh manager from the ``wazuh-master-01`` ip address at ``5601`` over ``https``.
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You can login to the dashboard with the username ``admin`` and the password for ``opendistro_admin_password`` which can be found within ``etc/kayobe/inventory/group_vars/wazuh-master/wazuh-secrets.yml``.
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.. note:: If you need to view the secrets it is recommended you use ``ansible-vault view --vault-password-file ~/vault.password``

‎source/vars.rst‎

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.. |tempest_recipes| replace:: https://github.com/acme-openstack/tempest-recipes.git
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.. |tls_setup| replace:: TLS is implemented using a wildcard certificate available for ``*.acme.example``.
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.. |vault_password_file_path| replace:: ~/vault-password
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.. |wazuh_master_url| replace:: https://|wazuh_master_ip|
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.. |wazuh_master_ip| replace:: 172.168.0.10:5601
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.. |wazuh_master_name| replace:: wazuh-master01

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