feat: add dependencies

CHANGELOG.md

@@ -5,6 +5,10 @@ Which is based on [Keep A Changelog](http://keepachangelog.com/)
 
 ## [Unreleased]
 
+### Added
+
+- add dependencies
+
 ### Fixed
 
 - bug in user template

README.md

@@ -148,6 +148,19 @@ Install and configure Icinga2
       monday: 00:05-00:10
 ```
 
+- `icinga2_dependencies` - hash with dependencies configuration ([view all options](https://icinga.com/docs/icinga-2/latest/doc/09-object-types/#dependency))
+
+```
+  postgresql-port:
+    parent_host_name: host.name
+    parent_service_name: postgresql-service
+    child_service_name: postgresql-port
+    disable_notifications: true
+    states:
+      - DOWN
+    assign: '"postgresql" in host.groups'
+```
+
 - `icinga2_notifications` - hash with notifications configuration
 
 ```

defaults/main.yml

@@ -107,4 +107,5 @@ icinga2_users: {}
 icinga2_api_users: {}
 icinga2_check_commands: {}
 icinga2_event_commands: {}
+icinga2_dependencies: {}
 icinga2_scripts: {}

molecule/default/converge.yml

@@ -50,3 +50,8 @@
     icinga2_event_commands:
       ping_event:
         command: '"/usr/bin/ping -c 1 -t 1 127.0.0.1"'
+    icinga2_dependencies:
+      test:
+        parent_host_name: host.name
+        disable_notifications: false
+        assign: "true"

molecule/default/molecule.yml

@@ -2,14 +2,6 @@
 driver:
   name: docker
 platforms:
-  - name: debian10
-    image: nishiki/debian10:molecule
-    privileged: true
-    volumes:
-      - /sys/fs/cgroup:/sys/fs/cgroup:ro
-    command: /bin/systemd
-    capabilities:
-      - SYS_ADMIN
   - name: debian11
     image: nishiki/debian11:molecule
     privileged: true

molecule/default/tests/test_default.py

@@ -77,6 +77,15 @@ def test_config_notifications(host):
   assert config.mode == 0o640
   assert config.contains('user_groups = host.vars.notification.mail.groups')
 
+def test_config_dependencies(host):
+  config = host.file('/etc/icinga2/conf.d/dependencies.conf')
+  assert config.exists
+  assert config.is_file
+  assert config.user == 'root'
+  assert config.group == 'nagios'
+  assert config.mode == 0o640
+  assert config.contains('parent_host_name = host.name')
+
 def test_script(host):
   path = host.file('/etc/icinga2/scripts/test-notification.sh')
   assert path.exists

tasks/config.yml

@@ -13,7 +13,7 @@
     owner: root
     group: nagios
     mode: 0750
-  loop: '{{ icinga2_scripts|dict2items }}'
+  loop: '{{ icinga2_scripts | dict2items }}'
   loop_control:
     label: '{{ item.key }}'
   tags: icinga2
@@ -28,6 +28,7 @@
   loop:
     - check_commands
     - commands
+    - dependencies
     - groups
     - hosts
     - notifications
@@ -112,7 +113,7 @@
     owner: root
     group: nagios
     mode: 0640
-  loop: '{{ icinga2_features|dict2items }}'
+  loop: '{{ icinga2_features | dict2items }}'
   loop_control:
     label: '{{ item.key }}'
   notify: restart icinga2
@@ -121,8 +122,8 @@
 - name: manage features
   community.general.icinga2_feature:
     name: '{{ item.key }}'
-    state: '{{ item.state|default("present") }}'
-  loop: '{{ icinga2_features|dict2items }}'
+    state: '{{ item.state | default("present") }}'
+  loop: '{{ icinga2_features | dict2items }}'
   loop_control:
     label: '{{ item.key }}'
   notify: restart icinga2

templates/dependencies.conf.j2

@@ -0,0 +1,28 @@
+# {{ ansible_managed }}
+{% for name, dependency in icinga2_dependencies.items() %}
+
+apply Dependency "{{ name }}" to Service {
+{% if dependency.parent_host_name is defined %}
+{% if dependency.parent_host_name == "host.name" %}
+  parent_host_name = host.name
+{% else %}
+  parent_host_name = {{ dependency.parent_host_name }}
+{% endif %}
+{% endif %}
+{% for option in ['parent_service_name', 'child_host_name', 'child_service_name' 'period'] %}
+{% if dependency[option] is defined %}
+  {{ option }} = "{{ dependency[option] }}"
+{% endif %}
+{% endfor %}
+{% for option in ['disable_checks', 'disable_notifications', 'ignore_soft_states'] %}
+{% if dependency[option] is defined %}
+  {{ option }} = {{ dependency[option] | ternary("true", "false") }}
+{% endif %}
+{% endfor %}
+{% if dependency.states is defined %}
+  states = [ {{ value | join(', ') }} ]
+{% endif %}
+
+  assign where {{ dependency.assign }}
+}
+{% endfor %}