validate: add checks for interfaces

Check if the interface provided:

* exists in the gathered facts (thus on the system)
* is active
* has an IP address (depending on ip_version )

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1600227
Signed-off-by: Sébastien Han <seb@redhat.com>

roles/ceph-validate/tasks/check_eth_mon.yml

@@ -0,0 +1,26 @@
+---
+- name: "fail if {{ monitor_interface }} does not exist on {{ inventory_hostname }}"
+  fail:
+    msg: "{{ monitor_interface }} does not exist on {{ inventory_hostname }}"
+  when:
+    - monitor_interface not in ansible_interfaces
+
+- name: "fail if {{ monitor_interface }} is not active on {{ inventory_hostname }}"
+  fail:
+    msg: "{{ monitor_interface }} is not active on {{ inventory_hostname }}"
+  when:
+    - not hostvars[inventory_hostname]['ansible_' + monitor_interface]['active']
+
+- name: "fail if {{ monitor_interface }} does not have any ip v4 address on {{ inventory_hostname }}"
+  fail:
+    msg: "{{ monitor_interface }} does not have any IPv4 address on {{ inventory_hostname }}"
+  when:
+    - ip_version == "ipv4"
+    - hostvars[inventory_hostname]['ansible_' + monitor_interface]['ipv4'] is not defined
+
+- name: "fail if {{ monitor_interface }} does not have any ip v6 address on {{ inventory_hostname }}"
+  fail:
+    msg: "{{ monitor_interface }} does not have any IPv6 address on {{ inventory_hostname }}"
+  when:
+    - ip_version == "ipv6"
+    - hostvars[inventory_hostname]['ansible_' + monitor_interface]['ipv6'] is not defined

roles/ceph-validate/tasks/check_eth_rgw.yml

@@ -0,0 +1,26 @@
+---
+- name: "fail if {{ radosgw_interface }} does not exist on {{ inventory_hostname }}"
+  fail:
+    msg: "{{ radosgw_interface }} does not exist on {{ inventory_hostname }}"
+  when:
+    - radosgw_interface not in ansible_interfaces
+
+- name: "fail if {{ radosgw_interface }} is not active on {{ inventory_hostname }}"
+  fail:
+    msg: "{{ radosgw_interface }} is not active on {{ inventory_hostname }}"
+  when:
+    - hostvars[inventory_hostname]['ansible_' + radosgw_interface]['active'] == "false"
+
+- name: "fail if {{ radosgw_interface }} does not have any ip v4 address on {{ inventory_hostname }}"
+  fail:
+    msg: "{{ radosgw_interface }} does not have any IPv4 address on {{ inventory_hostname }}"
+  when:
+    - ip_version == "ipv4"
+    - hostvars[inventory_hostname]['ansible_' + radosgw_interface]['ipv4'] is not defined
+
+- name: "fail if {{ radosgw_interface }} does not have any ip v6 address on {{ inventory_hostname }}"
+  fail:
+    msg: "{{ radosgw_interface }} does not have any IPv6 address on {{ inventory_hostname }}"
+  when:
+    - ip_version == "ipv6"
+    - hostvars[inventory_hostname]['ansible_' + radosgw_interface]['ipv6'] is not defined

roles/ceph-validate/tasks/main.yml

@@ -59,3 +59,19 @@
     - osd_group_name in group_names
     - not osd_auto_discovery | default(False)
     - osd_scenario != "lvm"
+
+- name: include check_eth_mon.yml
+  include: check_eth_mon.yml
+  when:
+    - mon_group_name in group_names
+    - monitor_interface != "dummy"
+    - monitor_address == "0.0.0.0"
+    - monitor_address_block == "subnet"
+
+- name: include check_eth_rgw.yml
+  include: check_eth_rgw.yml
+  when:
+    - rgw_group_name in group_names
+    - radosgw_interface != "dummy"
+    - radosgw_address == "0.0.0.0"
+    - radosgw_address_block == "subnet"