With IPA 4.7 bigger changes have been introduced

Changes:
- Use of timeconf and chrony instead of ntpconf and ntpd.
- custodia instance needed for ca and kra
- Use of create_ipa_conf with changed setting in setup_http for install_http,
  reverted back afterwards.

With IPA 4.7 bigger changes have been introduced

Changes:
- Use of timeconf and chrony instead of ntpconf and ntpd.
- New IPAChangeConf (not used in ipaserver modules)
- New check_ldap_conf form ipaclient.install.client
- custodia instance needed for ca and kra
- no_ntp defaults to yes for client installation part
- A new option ntp_pool has been introduced (set to None).

With IPA 4.7 bigger changes have been introduced

Changes:
- Use of timeconf and chrony instead of ntpconf and ntpd.
- A new option ntp_pool has been introduced.

Dropped commented out imports

tasks.create_tmpfiles_dirs only needs IPAAPI_USER as an argument for
version 4.5.4. For 4.5 there is no support for arguments.

IPAAPI_USER is therefore only needed for 4.5.4 in
module_utils/ansible_ipa_server.py

The support for external cert files is not complete yet.

Please have a look at the example inventory file inventory/hosts.replica and
also the install and uninstall playbook files install-replica.yml and
uninstall-replica.yml

b29db07c3b3d8937f53684fdbba985fec525d69d by Christian Heimes

    Replace custom file_exists() and dir_exists() functions with proper
    functions from Python's stdlib.

    The change also gets rid of pylint's invalid bad-python3-import error,
    https://github.com/PyCQA/pylint/issues/1565

This methods creates a list of ipautil.CheckedIPAddress from the provided
ip string list.

The support for external cert files is not complete yet.

With ansible 2.3.1 it is possible to have one place as an additional utils
module to do all the needed steps to be able to generate the environment for
new and older ipa versions.

The library modules are now a lot smaller.

The minimal ansible version has been increased to 2.3.1.

In the future it might now also be possible to have a special
ansible_ipa_client version for ipa < 4.4 in this utils module.