feat: compute load balancer targets status using a filter (#550)

##### SUMMARY

Allow to compute the status of a load balancer using a filter.

Closes #467 

##### ISSUE TYPE

- Feature Pull Request


##### COMPONENT NAME

hetzner.hcloud.loab_balancer_status

tests/integration/targets/filter_all/aliases

@@ -0,0 +1,3 @@
+cloud/hcloud
+gather_facts/no
+azp/group2

tests/integration/targets/filter_all/defaults/main/common.yml

@@ -0,0 +1,29 @@
+#
+# DO NOT EDIT THIS FILE! Please edit the files in tests/integration/common instead.
+#
+---
+# Azure Pipelines will configure this value to something similar to
+# "azp-84824-1-hetzner-2-13-test-2-13-hcloud-3-9-1-default-i"
+hcloud_prefix: "tests"
+
+# Used to namespace resources created by concurrent test pipelines/targets
+hcloud_run_ns: "{{ hcloud_prefix | md5 }}"
+hcloud_role_ns: "{{ role_name | split('_') | map('batch', 2) | map('first') | flatten() | join() }}"
+hcloud_ns: "ansible-{{ hcloud_run_ns }}-{{ hcloud_role_ns }}"
+
+# Used to easily update the server types and images across all our tests.
+hcloud_server_type_name: cax11
+hcloud_server_type_id: 45
+
+hcloud_server_type_upgrade_name: cax21
+hcloud_server_type_upgrade_id: 93
+
+hcloud_image_name: debian-12
+hcloud_image_id: 114690389 # architecture=arm
+
+hcloud_location_name: hel1
+hcloud_location_id: 3
+hcloud_datacenter_name: hel1-dc2
+hcloud_datacenter_id: 3
+
+hcloud_network_zone_name: eu-central

tests/integration/targets/filter_all/tasks/main.yml

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+#
+# DO NOT EDIT THIS FILE! Please edit the files in tests/integration/common instead.
+#
+---
+- name: Check if cleanup.yml exists
+  ansible.builtin.stat:
+    path: "{{ role_path }}/tasks/cleanup.yml"
+  register: cleanup_file
+
+- name: Check if prepare.yml exists
+  ansible.builtin.stat:
+    path: "{{ role_path }}/tasks/prepare.yml"
+  register: prepare_file
+
+- name: Include cleanup tasks
+  ansible.builtin.include_tasks: "{{ role_path }}/tasks/cleanup.yml"
+  when: cleanup_file.stat.exists
+
+- name: Include prepare tasks
+  ansible.builtin.include_tasks: "{{ role_path }}/tasks/prepare.yml"
+  when: prepare_file.stat.exists
+
+- name: Run tests
+  block:
+    - name: Include test tasks
+      ansible.builtin.include_tasks: "{{ role_path }}/tasks/test.yml"
+
+  always:
+    - name: Include cleanup tasks
+      ansible.builtin.include_tasks: "{{ role_path }}/tasks/cleanup.yml"
+      when: cleanup_file.stat.exists

tests/integration/targets/filter_all/tasks/test.yml

@@ -0,0 +1,21 @@
+- name: Test filter load_balancer_status
+  block:
+    - name: Load data
+      ansible.builtin.set_fact:
+        load_balancer_status_healthy: >-
+          {{ { "targets": [
+            {"health_status": [{"status": "healthy"}]},
+            {"health_status": [{"status": "healthy"}]},
+          ]} | hetzner.hcloud.load_balancer_status }}
+
+        load_balancer_status_healthy_and_unhealthy: >-
+          {{ { "targets": [
+            {"health_status": [{"status": "healthy"}, {"status": "unhealthy"}]},
+            {"health_status": [{"status": "healthy"}, {"status": "healthy"}]},
+          ]} | hetzner.hcloud.load_balancer_status }}
+
+    - name: Verify filter load_balancer_status
+      ansible.builtin.assert:
+        that:
+          - load_balancer_status_healthy == "healthy"
+          - load_balancer_status_healthy_and_unhealthy == "unhealthy"