FreeIPA Ansible roles

This repository contains Ansible roles and playbooks to install and uninstall FreeIPA servers, replicas and clients.

Note: The ansible playbooks and roles require a configured ansible environment where the ansible nodes are reachable and are properly set up to have an IP address and a working package manager.

Features

• Server, replica and client deployment
• Cluster deployments: Server, replicas and clients in one playbook
• One-time-password (OTP) support for client installation
• Repair mode for clients

Supported FreeIPA Versions

FreeIPA versions 4.6 and up are supported by all roles.

The client role supports versions 4.4 and up, the server role is working with versions 4.5 and up, the replica role is currently only working with versions 4.6 and up.

Supported Distributions

• RHEL/CentOS 7.4+
• Fedora 26+
• Ubuntu

Requirements

Controller

• Ansible version: 2.5+
• python3-gssapi is required on the controller if a one time password (OTP) is used with keytab to install the client.

Node

• Supported FreeIPA version (see above)
• Supported distribution (needed for package installation only, see above)

Limitations

External CA

External CA support is not supported or working. The currently needed two step process is an issue for the processing in the role. The configuration of the server is partly done already and needs to be continued after the CSR has been handled. This is for example breaking the deployment of a server with replicas or clients in one playbook.

Work is planned to have a new method to handle CSR for external CAs in a separate step before starting the server installation.

Usage

How to use ansible-freeipa

The simplest method for now is to clone this repository on the contoller from github directly and to start the deployment from the ansible-freeipa directory:

git clone https://github.com/freeipa/ansible-freeipa.git
cd ansible-freeipa

The roles provided by ansible-freeipa are not available in ansible galaxy so far.

Ansible inventory file

The most important parts of the inventory file is the definition of the nodes, settings and the topology. Please remember to use Ansible vault for passwords. The examples here are not using vault for better readability.

Master server

The master server is defined within the [ipaserver] group:

[ipaserver]
ipaserver.test.local

There are variables that need to be set like domain, realm, admin password and dm password. These can be set in the [ipaserver:vars] section:

[ipaserver:vars]
ipaadmin_password=ADMPassword1
ipadm_password=DMPassword1
ipaserver_domain=test.local
ipaserver_realm=TEST.LOCAL

The admin principle is admin by default. Please set ipaadmin_principal if you need to change it.

You can also add more setting here, like for example to enable the DNS server or to set auto-forwarders:

[ipaserver:vars]
ipaserver_setup_dns=yes
ipaserver_auto_forwarders=yes

But also to skip package installation or firewalld configuration:

[ipaserver:vars]
ipaserver_install_packages=no
ipaserver_setup_firewalld=no

The installation of packages and also the configuration of the firewall are by default enabled.

For more server settings, please have a look at the server role documentation.

Replica

The replicas are defined within the [ipareplicas] group:

[ipareplicas]
ipareplica1.test.local
ipareplica2.test.local

If the master server is already deployed and there are DNS txt records to be able to auto-detect the server, then it is not needed to set domain or realm for the replica deployment. But it might be needed to set the master server of a replica because of the topology. If this is needed, it can be set either in the [ipareplicas:vars] section if it will apply to all the replicas in the [ipareplicas] group or it is possible to set this also per replica in the [ipareplicas] group:

[ipareplicas]
ipareplica1.test.local
ipareplica2.test.local ipareplica_servers=ipareplica1.test.local

This will create a chain from ipaserver.test.local <- ipareplica1.test.local <- ipareplica2.test.local.

If you need to set more than one server for a replica (for fallbacks etc.), simply use a comma separated list for ipareplica_servers:

[ipareplicas_tier1]
ipareplica1.test.local

[ipareplicas_tier2]
ipareplica2.test.local ipareplica_servers=ipareplica1.test.local,ipaserver.test.local

The first entry in ipareplica_servers will be used as the master.

In this case you need to have separate tasks in the playbook to first deploy replicas from tier1 and then replicas from tier2:

---
- name: Playbook to configure IPA replicas (tier1)
  hosts: ipareplicas_tier1
  become: true

  roles:
  - role: ipareplica
    state: present

- name: Playbook to configure IPA replicas (tier2)
  hosts: ipareplicas_tier2
  become: true

  roles:
  - role: ipareplica
    state: present

You can add settings for replica deployment:

[ipareplicas:vars]
ipaadmin_password=ADMPassword1
ipadm_password=DMPassword1
ipaserver_domain=test.local
ipaserver_realm=TEST.LOCAL

You can also add more setting here, like for example to setup DNS or to enable auto-forwarders:

[ipareplica:vars]
ipaserver_setup_dns=yes
ipaserver_auto_forwarders=yes

If you need to skip package installation or firewalld configuration:

[ipareplicas:vars]
ipareplica_install_packages=no
ipareplica_setup_firewalld=no

The installation of packages and also the configuration of the firewall are by default enabled.

For more replica settings, please have a look at the replica role documentation.

Client

Clients are defined within the [ipaclients] group:

[ipaclients]
ipaclient1.test.local
ipaclient2.test.local
ipaclient3.test.local
ipaclient4.test.local

For simple setups or in defined client environments it might not be needed to set domain or realm for the replica deployment. But it might be needed to set the master server of a client because of the topology. If this is needed, it can be set either in the [ipaclients:vars} section if it will apply to all the clients in the [ipaclients] group or it is possible to set this also per client in the [ipaclients] group:

[ipaclients]
ipaclient1.test.local ipaclient_servers=ipareplica1.test.local
ipaclient2.test.local ipaclient_servers=ipareplica1.test.local
ipaclient3.test.local ipaclient_servers=ipareplica2.test.local
ipaclient4.test.local ipaclient_servers=ipareplica2.test.local

If you need to set more than one server for a client (for fallbacks etc.), simply use a comma separated list for ipaclient_servers.

You can add settings for client deployment:

[ipaclients:vars]
ipaadmin_password=ADMPassword1
ipaserver_domain=test.local
ipaserver_realm=TEST.LOCAL

For enhanced security it is possible to use a auto-generated one-time-password (OTP). This will be generated on the controller using the (first) server. It is needed to have the Python gssapi bindings installed on the controller for this. To enable the generation of the one-time-password:

[ipaclients:vars]
ipaclient_use_otp=yes

For more client settings, please have a look at the client role documentation.

Cluster

If you want to deploy more than a master server at once, then it will be good to define a new group like [ipacluster] that contains all the other groups [ipaserver], [ipareplicas] and [ipaclients]. This way it is not needed to set domain, realm, admin password or dm password for the single groups:

[ipacluster:children]
ipaserver
ipareplicas
ipaclients

[ipacluster:vars]
ipaadmin_password=ADMPassword1
ipadm_password=DMPassword1
ipaserver_domain=test.local
ipaserver_realm=TEST.LOCAL

All these settings will be available in the [ipaserver], [ipareplicas] and [ipaclient] groups.

Playbooks

The playbooks needed to deploy or undeploy server, replicas and clients are part of the repository. There are also playbooks to deploy and undeploy clusters. With them it is only needed to add an inventory file:

install-client.yml
install-cluster.yml
install-replica.yml
install-server.yml
uninstall-client.yml
uninstall-cluster.yml
uninstall-replica.yml
uninstall-server.yml

How to deploy a master server

ansible-playbook -v -i inventory/hosts install-server.yml

This will deploy the master server defined in the inventory file.

If Ansible vault is used for passwords, then it is needed to adapt the playbooks in this way:

---
- name: Playbook to configure IPA servers
  hosts: ipaserver
  become: true
  vars_files:
  - playbook_sensitive_data.yml

  roles:
  - role: ipaserver
    state: present

It is also needed to provide the vault passowrd file on the ansible-playbook command line:

ansible-playbook -v -i inventory/hosts --vault-password-file .vaul_pass.txt install-server.yml

How to deploy a replica

ansible-playbook -v -i inventory/hosts install-replica.yml

This will deploy the replicas defined in the inventory file.

How to setup a client

ansible-playbook -v -i inventory/hosts install-client.yml

This will deploy the clients defined in the inventory file.

How to deploy a cluster

ansible-playbook -v -i inventory/hosts install-cluster.yml

This will deploy the server, replicas and clients defined in the inventory file.

Roles

• Server
• Replica
• Client