[#75] functionality to set libvirt sec driver

With this change libvirt securty driver will be set to none,
also small fix to ignore errors during connection reset, this will
allow to run roles with connection_local

Change-Id: I0cbe7a465ce2e21aa23bde2aa7c1adb9f5f09cda

roles/airship-libvirt-gate/tasks/build-infra.yaml

@@ -10,6 +10,10 @@
 - name: install libvirt
   include_role:
     name: libvirt-install
+    tasks_from: "{{ item }}"
+  with_items:
+    - main
+    - configure
 
 - name: create pool
   include_role:

roles/libvirt-install/defaults/main.yaml

@@ -0,0 +1 @@
+libvirt_qemu_config_file: /etc/libvirt/qemu.conf

roles/libvirt-install/tasks/configure.yaml

@@ -0,0 +1,13 @@
+- name: configure libvirt
+  become: true
+  block:
+  - name: Set libvirt security driver
+    lineinfile:
+      path: "{{ libvirt_qemu_config_file }}"
+      state: present
+      regexp: '^\s*security_driver\s*=.*$'
+      line: "security_driver = \"{{ libvirt_security_driver | default('none') }}\""
+  - name: libvirtd restarted
+    service:
+      name: libvirtd
+      state: restarted

roles/libvirt-install/tasks/main.yaml

@@ -38,6 +38,7 @@
       append: yes
   - name: Reset ssh connection to allow user changes to affect "{{ ansible_user }}"
     meta: reset_connection
+    ignore_errors: true
   - name: Start libvirtd
     service:
       name: libvirtd

zuul.d/jobs.yaml

@@ -61,7 +61,7 @@
       - playbooks/airship-airshipctl-build-gate.yaml
     post-run: playbooks/airship-collect-logs.yaml
     run: playbooks/airship-airshipctl-test-runner.yaml
-    nodeset: airship-airshipctl-single-16GB-bionic-node
+    nodeset: airship-airshipctl-single-32GB-bionic-node
     vars:
       site_name: test-bootstrap
 ## var files are the files that are located at playbooks/vars directory