unbound(role): update readme and move task block to top level and remove unused

roles/unbound/tasks/main.yml

@@ -1,55 +1,52 @@
-- name: unbound role main
-  block:
+- name: install unbound dns resolver
+  become: true
+  ansible.builtin.package:
+    name: unbound
 
-    - name: install unbound dns resolver
-      become: true
-      ansible.builtin.package:
-        name: unbound
+- name: install unbound-anchor
+  become: true
+  ansible.builtin.package:
+    name: unbound-anchor
 
-    - name: install unbound-anchor
-      become: true
-      ansible.builtin.package:
-        name: unbound-anchor
+- name: ensure correct directory permissions
+  become: true
+  ansible.builtin.file:
+    path: /etc/unbound
+    state: directory
+    mode: u=rwX,g=rX,o=rX
+    recurse: true
+    owner: unbound
+    group: unbound
 
-    - name: ensure correct directory permissions
-      become: true
-      ansible.builtin.file:
-        path: /etc/unbound
-        state: directory
-        mode: u=rwX,g=rX,o=rX
-        recurse: true
-        owner: unbound
-        group: unbound
+- name: configure unbound dns resolver
+  become: true
+  notify: unbound.restarted
+  ansible.builtin.template:
+    src: unbound.conf.j2
+    dest: /etc/unbound/unbound.conf
+    owner: unbound
+    group: unbound
+    mode: u=rw,g=r,o=r
 
-    - name: configure unbound dns resolver
-      become: true
-      notify: unbound.restarted
-      ansible.builtin.template:
-        src: unbound.conf.j2
-        dest: /etc/unbound/unbound.conf
-        owner: unbound
-        group: unbound
-        mode: u=rw,g=r,o=r
+- name: disable systemd-resolved
+  when: unbound_disable_systemd_networkd
+  ansible.builtin.include_role:
+    name: deploy_systemd_resolved_config
+  vars:
+    deploy_systemd_resolved_config__enable: false
+    deploy_systemd_resolved_config__dns:
+      - 127.0.0.1
 
-    - name: disable systemd-resolved
-      when: unbound_disable_systemd_networkd
-      ansible.builtin.include_role:
-        name: deploy_systemd_resolved_config
-      vars:
-        deploy_systemd_resolved_config__enable: false
-        deploy_systemd_resolved_config__dns:
-          - 127.0.0.1
+- name: flush handlers
+  ansible.builtin.meta: flush_handlers
 
-    - name: flush handlers
-      ansible.builtin.meta: flush_handlers
+- name: ensure unbound is running and enabled
+  become: true
+  ansible.builtin.systemd:
+    name: unbound.service
+    state: started
+    enabled: true
 
-    - name: ensure unbound is running and enabled
-      become: true
-      ansible.builtin.systemd:
-        name: unbound.service
-        state: started
-        enabled: true
-
-    - name: install and configure prometheus-exporter for unbound
-      ansible.builtin.import_tasks: prometheus-exporter.yml
-      when: unbound_install_prometheus_exporter
+- name: install and configure prometheus-exporter for unbound
+  ansible.builtin.import_tasks: prometheus-exporter.yml
+  when: unbound_install_prometheus_exporter