Merge "Add the MTU size to ping to catch network issues"

tripleo_ansible/roles/tripleo_nodes_validation/tasks/main.yml

@@ -46,13 +46,10 @@
     - tripleo_nodes_validation_ping_test_gateway_ips | length > 0
 
 - name: Check Controllers availability
-  command: "{{ (':' in controller) | ternary('ping6', 'ping') }} -w 10 -c 1 {{ controller }}"
-  retries: 10
-  delay: 60
+  include_tasks: ping.yml
   loop_control:
     loop_var: controller
   loop: "{{ tripleo_nodes_validation_ping_test_ips }}"
-  changed_when: false
   when:
     - tripleo_nodes_validation_validate_controllers_icmp|bool
     - tripleo_nodes_validation_ping_test_ips | length > 0

tripleo_ansible/roles/tripleo_nodes_validation/tasks/ping.yml

@@ -0,0 +1,40 @@
+---
+# Copyright 2021 Red Hat, Inc.
+# All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+- name: Get nic for ping
+  shell: |-
+    ip ro get {{ controller }} | head -1 | sed 's/.*dev \(.*\) src.*/\1/'
+  register: nic_for_ping
+
+- name: network availability validation block
+  block:
+    - name: Get MTU for {{ nic_for_ping.stdout }}
+      shell: |-
+        ip link show {{ nic_for_ping.stdout }} | head -1 | sed 's/.*mtu \(.*\) qdisc.*/\1/'
+      register: mtu_for_nic
+
+    - name: Check IP responsiveness
+      command: "{{ (':' in controller) | ternary('ping6', 'ping') }} -w 10 -c 1 {{ controller }}"
+      retries: 10
+      delay: 60
+      changed_when: false
+
+    - name: Validate packet with given MTU size can reach controller
+      command: "{{ (':' in controller) | ternary('ping6', 'ping') }} -w 10 -s {{ mtu_for_nic.stdout | int - 28 }} -c 1 {{ controller }}"
+      retries: 10
+      delay: 60
+      changed_when: false
+  when: nic_for_ping.stdout != 'lo'