ipaserver role
==============

Description
-----------

This role allows to configure and IPA server.

**Note**: The ansible playbooks and role 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 deployment


Supported FreeIPA Versions
--------------------------

FreeIPA versions 4.5 and up are supported by the server role.


Supported Distributions
-----------------------

* RHEL/CentOS 7.6+
* Fedora 26+
* Ubuntu


Requirements
------------

**Controller**
* Ansible version: 2.8+

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


Limitations
-----------

**External signed CA**
External signed CA is now supported. But the currently needed two step process is an issue for the processing in a simple playbook.

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


Usage
=====

Example inventory file with fixed domain and realm, setting up of the DNS server and using forwarders from /etc/resolv.conf:

```ini
[ipaserver]
ipaserver2.example.com

[ipaserver:vars]
ipaserver_domain=example.com
ipaserver_realm=EXAMPLE.COM
ipaserver_setup_dns=yes
ipaserver_auto_forwarders=yes
```

Example playbook to setup the IPA server using admin and dirman passwords from an [Ansible Vault](http://docs.ansible.com/ansible/latest/playbooks_vault.html) file:

```yaml
---
- name: Playbook to configure IPA server
  hosts: ipaserver
  become: true
  vars_files:
  - playbook_sensitive_data.yml

  roles:
  - role: ipaserver
    state: present
```

Example playbook to unconfigure the IPA client(s) using principal and password from inventory file:

```yaml
---
- name: Playbook to unconfigure IPA server
  hosts: ipaserver
  become: true

  roles:
  - role: ipaserver
    state: absent
```

Example inventory file with fixed domain, realm, admin and dirman passwords:

```ini
[ipaserver]
ipaserver.example.com

[ipaserver:vars]
ipaserver_domain=example.com
ipaserver_realm=EXAMPLE.COM
ipaadmin_password=MySecretPassword123
ipadm_password=MySecretPassword234
```

Example playbook to setup the IPA server using admin and dirman passwords from inventory file:

```yaml
---
- name: Playbook to configure IPA server
  hosts: ipaserver
  become: true

  roles:
  - role: ipaserver
    state: present
```

Example playbook to setup the IPA primary with external signed CA using the previous inventory file:

Server installation step 1: Generate CSR, copy to controller as `<ipaserver hostname>-ipa.csr`

```yaml
---
- name: Playbook to configure IPA server step1
  hosts: ipaserver
  become: true
  vars:
    ipaserver_external_ca: yes

  roles:
  - role: ipaserver
    state: present

  post_tasks:
  - name: Copy CSR /root/ipa.csr from node to "{{ groups.ipaserver[0] + '-ipa.csr' }}"
    fetch:
      src: /root/ipa.csr
      dest: "{{ groups.ipaserver[0] + '-ipa.csr' }}"
      flat: yes
```

Sign with CA: This is up to you

Server installation step 2: Copy `<ipaserver hostname>-chain.crt` to the IPA server and continue with installation of the primary.

```yaml
---
- name: Playbook to configure IPA server step3
  hosts: ipaserver
  become: true
  vars:
    ipaserver_external_cert_files: "/root/chain.crt"

  pre_tasks:
  - name: Copy "{{ groups.ipaserver[0] + '-chain.crt' }}" to /root/chain.crt on node
    copy:
      src: "{{ groups.ipaserver[0] + '-chain.crt' }}"
      dest: "/root/chain.crt"
      force: yes

  roles:
  - role: ipaserver
    state: present
```

The files can also be copied automatically: Set `ipaserver_copy_csr_to_controller` to true in the server installation step 1 and set `ipaserver_external_cert_files_from_controller` to point to the `chain.crt` file in the server installation step 2.


Playbooks
=========

The playbooks needed to deploy or undeploy a server are part of the repository in the playbooks folder. There are also playbooks to deploy and undeploy clusters.
```
install-server.yml
uninstall-server.yml
```
Please remember to link or copy the playbooks to the base directory of ansible-freeipa if you want to use the roles within the source archive.


How to setup a server
---------------------

```bash
ansible-playbook -v -i inventory/hosts install-server.yml
```
This will deploy the server defined in the inventory file.


Variables
=========

Base Variables
--------------

Variable | Description | Required
-------- | ----------- | --------
`ipaserver` | This group with the single IPA server full qualified hostname. (list of strings) | yes
`ipadm_password` | The password for the  Directory Manager. (string) | no
`ipaadmin_password` | The password for the IPA admin user (string) | no
`ipaserver_ip_addresses` | The list of master server IP addresses. (list of strings) | no
`ipaserver_domain` | The primary DNS domain of an existing IPA deployment. (string) | no
`ipaserver_realm` | The Kerberos realm of an existing IPA deployment. (string) | no
`ipaserver_hostname` | Fully qualified name of the server. (string) | no
`ipaserver_no_host_dns` | Do not use DNS for hostname lookup during installation. (bool, default: false) | no
`ipaserver_mem_check` | Checking for minimum required memory for the deployment. This is only usable with recent FreeIPA versions (4.8.10+) else ignored. (bool, default: yes) | no

Server Variables
----------------

Variable | Description | Required
-------- | ----------- | --------
`ipaserver_setup_adtrust` | Configure AD Trust capability. (bool, default: false) | no
`ipaserver_setup_kra` | Install and configure a KRA on this server. (bool, default: false) | no
`ipaserver_setup_dns` | Configure an integrated DNS server, create DNS zone specified by domain. (bool, default: false) | no
`ipaserver_idstart` | The starting user and group id number. (integer, default: random) | no
`ipaserver_idmax` | The maximum user and group id number. (integer, default: idstart+199999) | no
`ipaserver_no_hbac_allow` | Do not install allow_all HBAC rule. (bool) | no
`ipaserver_no_ui_redirect` | Do not automatically redirect to the Web UI. (bool) | no
`ipaserver_dirsrv_config_file` | The path to LDIF file that will be used to modify configuration of dse.ldif during installation. (string) | no
`ipaserver_pki_config_override` | Path to ini file with config overrides. This is only usable with recent FreeIPA versions. (string) | no

SSL certificate Variables
-------------------------

Variable | Description | Required
-------- | ----------- | --------
`ipaserver_dirsrv_cert_files` | Files containing the Directory Server SSL certificate and private keys. (list of strings) | no
`ipaserver_http_cert_files` | File containing the Apache Server SSL certificate and private key. (list of string) | no
`ipaserver_pkinit_cert_files` | File containing the Kerberos KDC SSL certificate and private key. (list of string) | no
`ipaserver_dirsrv_pin` | The password to unlock the Directory Server private key. (string) | no
`ipaserver_http_pin` | The password to unlock the Apache Server private key. (string) | no
`ipaserver_pkinit_pin` | The password to unlock the Kerberos KDC private key. (string) | no
`ipaserver_dirsrv_cert_name` | Name of the Directory Server SSL certificate to install. (string) | no
`ipaserver_http_cert_name` | Name of the Apache Server SSL certificate to install. (string) | no
`ipaserver_pkinit_cert_name` | Name of the Kerberos KDC SSL certificate to install. (string) | no
`ipaserver_no_pkinit` | Disable pkinit setup steps (boolean) | no

NOTE: If one of the `ipaserver_http_cert_files` or `ipaserver_pkinit_cert_files` is specified, then both are required, so declaring only one of them will raise an error. Additionally, one of `ipaserver_pkinit_cert_files` or `ipaserver_no_pkinit` must be provided as well.

Client Variables
----------------

Variable | Description | Required
-------- | ----------- | --------
`ipaclient_ntp_servers` | The list defines the NTP servers to be used. | no
`ipaclient_ntp_pool` | The string value defines the ntp server pool to be used. | no
`ipaclient_no_ntp` | The bool value defines if NTP will not be configured and enabled. `ipaclient_no_ntp` defaults to `no`. | no
`ipaclient_ssh_trust_dns` | The bool value defines if OpenSSH client will be configured to trust DNS SSHFP records.  `ipaclient_ssh_trust_dns` defaults to `no`. | no
`ipaclient_no_ssh` | The bool value defines if OpenSSH client will be configured. `ipaclient_no_ssh` defaults to `no`. | no
`ipaclient_no_sshd` | The bool value defines if OpenSSH server will be configured. `ipaclient_no_sshd` defaults to `no`. | no
`ipaclient_no_sudo` | The bool value defines if SSSD will be configured as a data source for sudo. `ipaclient_no_sudo` defaults to `no`. | no
`ipaclient_no_dns_sshfp` | The bool value defines if DNS SSHFP records will not be created automatically. `ipaclient_no_dns_sshfp` defaults to `no`. | no

Certificate system Variables
----------------------------

Variable | Description | Required
-------- | ----------- | --------
`ipaserver_external_ca` | Generate a CSR for the IPA CA certificate to be signed by an external CA. (bool, default: false) | no
`ipaserver_external_ca_type` | Type of the external CA. (choice: generic, ms-cs) | no
`ipaserver_external_ca_profile` | Specify the certificate profile/template to use at the external CA. (string) | no
`ipaserver_external_cert_files` | Files containing the IPA CA certificates and the external CA certificate chains (list of string) | no
`ipaserver_subject_base` | The certificate subject base (default O=<realm-name>). RDNs are in LDAP order (most specific RDN first). (string) | no
`ipaserver_ca_subject` | The CA certificate subject DN (default CN=Certificate Authority,O=<realm-name>). RDNs are in LDAP order (most specific RDN first). (string) | no
`ipaserver_ca_signing_algorithm` | Signing algorithm of the IPA CA certificate. (choice: SHA1withRSA, SHA256withRSA, SHA512withRSA) | no

DNS Variables
-------------

Variable | Description | Required
-------- | ----------- | --------
`ipaserver_allow_zone_overlap` | Allow creation of (reverse) zone even if the zone is already resolvable. (bool, default: false) | no
`ipaserver_reverse_zones` | The reverse DNS zones to use. (list of strings) | no
`ipaserver_no_reverse` | Do not create reverse DNS zone. (bool, default: false) | no
`ipaserver_auto_reverse` | Try to resolve reverse records and reverse zones for server IP addresses. (bool, default: false) | no
`ipaserver_zonemgr` | The e-mail address of the DNS zone manager. (string, default: hostmaster@DOMAIN.) | no
`ipaserver_forwarders` | Add DNS forwarders to the DNS configuration. (list of strings) | no
`ipaserver_no_forwarders` | Do not add any DNS forwarders. Root DNS servers will be used instead. (bool, default: false) | no
`ipaserver_auto_forwarders` | Add DNS forwarders configured in /etc/resolv.conf to the list of forwarders used by IPA DNS. (bool, default: false) | no
`ipaserver_forward_policy` | DNS forwarding policy for global forwarders specified using other options. (choice: first, only) | no
`ipaserver_no_dnssec_validation` | Disable DNSSEC validation on this server. (bool, default: false) | no

AD trust Variables
------------------

Variable | Description | Required
-------- | ----------- | --------
`ipaserver_enable_compat`| Enables support for trusted domains users for old clients through Schema Compatibility plugin. (bool, default: false) | no
`ipaserver_netbios_name` | The NetBIOS name for the IPA domain. (string) | no
`ipaserver_rid_base` | First RID value of the local domain. (integer) | no
`ipaserver_secondary_rid_base` | Start value of the secondary RID range. (integer) | no

Special Variables
-----------------

Variable | Description | Required
-------- | ----------- | --------
`ipaserver_install_packages` | The bool value defines if the needed packages are installed on the node. (bool, default: true) | no
`ipaserver_setup_firewalld` | The value defines if the needed services will automatically be opened in the firewall managed by firewalld. (bool, default: true) | no
`ipaserver_firewalld_zone` | The value defines the firewall zone that will be used. This needs to be an existing runtime and permanent zone. (string) | no
`ipaserver_external_cert_files_from_controller` | Files containing the IPA CA certificates and the external CA certificate chains on the controller that will be copied to the ipaserver host to `/root` folder. (list of string) | no
`ipaserver_copy_csr_to_controller` | Copy the generated CSR from the ipaserver to the controller as `"{{ inventory_hostname }}-ipa.csr"`. (bool) | no

Authors
=======

Thomas Woerner
