DEV-452: added workaround to fix problem with missing hetzner internal network

roles/hcloud/tasks/_check_for_internal_address.yml

@@ -0,0 +1,37 @@
+---
+- name: "Block to handle missing internal hetzner server network"
+  block:
+  - name: "Increment the retry count"
+    set_fact:
+      retry_count: "{{ retry_count | default(0) | int + 1 }}"
+
+  - name: "DEBUG"
+    debug:
+      msg: "current retry_count: {{ retry_count }}"
+
+  - name: "DEBUG"
+    debug:
+      msg: "ansible_all_ipv4_addresses: {{ ansible_all_ipv4_addresses }}"
+  
+  - name: "DEBUG"
+    debug:
+      msg: "ansible_all_ipv4_addresses-FILTERED:  {{ ansible_all_ipv4_addresses | ansible.netcommon.ipaddr(shared_service_network) }}"
+  
+  - name: "DEBUG - break if only one IPv4-address was found"
+    assert:
+      that:
+        - ansible_all_ipv4_addresses | length == 2
+  rescue:
+    - name: "RESCUE - fail: Maximum retries reached"
+      fail:
+        msg: "max_retries of {{ max_retries }} reached. Plz check."
+      when: retry_count | int == max_retries | int
+
+    - name: "RESCUE: wait_for {{ retry_delay }} sec. between retries"
+      wait_for:
+        timeout: "{{ retry_delay }}"
+      delegate_to: localhost
+      become: false
+
+    - name: "Include _check_for_internal_address.yml one time again => increase retry_count"
+      include_tasks: _check_for_internal_address.yml

roles/hcloud/tasks/main.yml

@@ -9,6 +9,11 @@
     name: hcloud
     tasks_from: _set_server_state
 
+- name: "Checking if internal network up and runnig for <{{ inventory_hostname }}>"
+  include_role:
+    name: hcloud
+    tasks_from: _check_for_internal_address
+
 - name: "Gathering current server infos from hetzner"
   hcloud_server_info:
     api_token: "{{ hetzner_authentication_ansible }}"

roles/restore_maria/tasks/main.yml

@@ -19,23 +19,6 @@
       user={{ mysql_root_username }}
       password={{ mysql_root_password }}
 
-- name: DEBUG
-  debug:
-    msg: "ansible_all_ipv4_addresses: {{ ansible_all_ipv4_addresses }}"
-
-- name: DEBUG
-  debug:
-    msg: "ansible_all_ipv4_addresses-FILTERED:  {{ ansible_all_ipv4_addresses | ansible.netcommon.ipaddr(shared_service_network) }}"
-
-- name: DEBUG
-  debug:
-    msg: "ansible_all_ipv4_addresses-FILTERED-firstelem:  {{ ansible_all_ipv4_addresses | ansible.netcommon.ipaddr(shared_service_network) | first }}"
-
-- name: DEBUG - break if only one IPv4-address was found
-  assert:
-    that:
-      - ansible_all_ipv4_addresses | length == 2
-
 - name: "Install mariadb via include_role"
   vars:
     mysql_packages: