New role for ipareplica installation

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

roles/ipareplica/tasks/uninstall.yml

@@ -0,0 +1,38 @@
+---
+# tasks to uninstall IPA replica
+
+#- name: Uninstall - Include Python2/3 import test
+#  include: "{{role_path}}/tasks/python_2_3_test.yml"
+#  static: yes
+
+- name: Uninstall - Uninstall IPA replica
+  command: >
+    /usr/sbin/ipa-server-install
+    --uninstall
+    -U
+    {{ "--ignore-topology-disconnect" if ipareplica_ignore_topology_disconnect | bool else "" }}
+    {{ "--ignore-last-of-role" if ipareplica_ignore_last_of_role | bool else "" }}
+  register: result_uninstall
+  # 2 means that uninstall failed because IPA replica was not configured
+  failed_when: result_uninstall.rc != 0 and "'Env' object has no attribute 'basedn'" not in result_uninstall.stderr
+  #IPA server is not configured on this system" not in result_uninstall.stdout_lines
+  #changed_when: result_uninstall.rc == 0
+  #until: result_uninstall.rc == 0
+  retries: 2
+  delay: 1
+
+- name: Uninstall - Remove all replication agreements and data about replica
+  command: >
+    /usr/sbin/ipa-replica-manage
+    del
+    {{ ipareplica_hostname | default(ansible_fqdn) }}
+    --force
+    --password={{ ipadm_password }}
+  failed_when: False
+  delegate_to: "{{ groups.ipaserver[0] | default(fail) }}"
+
+#- name: Remove IPA replica packages
+#  package:
+#    name: "{{ item }}"
+#    state: absent
+#  with_items: "{{ ipareplica_packages }}"