Adding Ubuntu support in Ansible - dns role

Extending ansible playbooks of ubuntu support.
Creating new test with Ubuntu image for Molecule in dns role.

Issue-ID: OOM-1671
Signed-off-by: Jan Benedikt <j.benedikt@partner.samsung.com>
Change-Id: I414df46093fd300891b9df44e12a0225495cc906
diff --git a/ansible/roles/dns/molecule/ubuntu/group_vars b/ansible/roles/dns/molecule/ubuntu/group_vars
new file mode 120000
index 0000000..e04e088
--- /dev/null
+++ b/ansible/roles/dns/molecule/ubuntu/group_vars
@@ -0,0 +1 @@
+../../../../group_vars/
\ No newline at end of file
diff --git a/ansible/roles/dns/molecule/ubuntu/molecule.yml b/ansible/roles/dns/molecule/ubuntu/molecule.yml
new file mode 100644
index 0000000..5428c04
--- /dev/null
+++ b/ansible/roles/dns/molecule/ubuntu/molecule.yml
@@ -0,0 +1,42 @@
+---
+dependency:
+  name: galaxy
+driver:
+  name: docker
+lint:
+  name: yamllint
+platforms:
+  - name: infrastructure-server
+    image: molecule-${PREBUILD_PLATFORM_DISTRO:-ubuntu}:${PREBUILD_DISTRO_VERSION:-18.04}
+    pre_build_image: True
+    privileged: true
+    override_command: False
+    groups:
+      - infrastructure
+    volumes:
+      - /var/lib/docker
+provisioner:
+  name: ansible
+  lint:
+    name: ansible-lint
+  env:
+    ANSIBLE_ROLES_PATH: ../../../../test/roles
+    ANSIBLE_LIBRARY: ../../../../library
+  playbooks:
+    prepare: ../default/prepare.yml
+    converge: ../default/playbook.yml
+    cleanup: ../default/cleanup.yml
+  inventory:
+    host_vars:
+      infrastructure-server:
+        cluster_ip: 127.0.0.1
+    group_vars:
+      all:
+        app_name: onap
+        app_data_path: "/opt/{{ app_name }}"
+scenario:
+  name: ubuntu
+verifier:
+  name: testinfra
+  lint:
+    name: flake8
diff --git a/ansible/roles/dns/tasks/main.yml b/ansible/roles/dns/tasks/main.yml
index 8a7f8bc..bfdd83b 100644
--- a/ansible/roles/dns/tasks/main.yml
+++ b/ansible/roles/dns/tasks/main.yml
@@ -4,6 +4,12 @@
     path: "{{ app_data_path }}/cfg"
     state: directory
 
+- name: Stop systemd-resolved daemon - Ubuntu
+  systemd:
+    name: systemd-resolved
+    state: stopped
+  when: ansible_distribution in ["Ubuntu","Debian"]
+
 - name: Create simulated hostnames file
   template:
     src: simulated_hosts.j2