rt1(z9 host) unbound(role) kea_dhcp(role): create unbound and kea_dhcp role for rt1

- create unbound role
- create kea_dhcp role
- configure unbound and keadhcp on rt1(z9 host)

roles/kea_dhcp/tasks/install_debian.yml

@@ -0,0 +1,22 @@
+---
+- name: Register isc-kea apt repository
+  become: true
+  register: kea_dhcp_repo
+  when: ansible_facts['distribution'] == "Debian"
+  ansible.builtin.deb822_repository:
+    name: "isc-{{ kea_dhcp__version_repo }}"
+    uris: "https://dl.cloudsmith.io/public/isc/{{ kea_dhcp__version_repo }}/deb/debian"
+    suites: any-version
+    components: main
+    signed_by: "https://dl.cloudsmith.io/public/isc/{{ kea_dhcp__version_repo }}/gpg.key"
+
+- name: Install Kea packages
+  become: true
+  when: ansible_facts['distribution'] == "Debian"
+  ansible.builtin.apt:
+    name:
+      - isc-kea-dhcp4
+      - isc-kea-dhcp6
+      - isc-kea-ctrl-agent
+      - isc-kea-admin
+    update_cache: "{{ kea_dhcp_install_repo.changed }}"