tests: miscellaneous improvements to container build tests

- add debug logging and recover the log files
- discard database and settings file between container tests

Change-Id: Ifd8a8d544c4c550873a9eb586de038710a60ba05

tests/container_test_tasks.yaml

@@ -11,6 +11,7 @@
   command: |
     podman run --name api-server --detach --tty \
     --volume {{ ara_api_root_dir }}/server:/opt/ara:z -p 8000:8000 \
+    -e ARA_LOG_LEVEL=DEBUG -e ARA_DEBUG=true \
     {{ item.name }}:{{ item.tag }}
 
 - block:
@@ -67,15 +68,24 @@
         that:
           - _get_playbook.json["id"] == _post_playbook.json["id"]
   always:
-    - name: Delete previous static build
-      file:
-        path: "{{ ara_api_root_dir }}/server/static"
-        state: absent
+    - name: Recover container logs
+      shell: podman logs -nt api-server | tee -a {{ ara_api_root_dir }}/server/container-{{ item.tag }}.log
+      changed_when: false
 
     - name: Generate a static report
-      command: podman exec -it api-server ara-manage generate /opt/ara/static
+      command: podman exec -it api-server ara-manage generate /opt/ara/static-{{ item.tag }}
       ignore_errors: yes
 
-    # The container gets removed but the data persists in ~/.ara-tests/server
     - name: Stop the container and remove it
       command: podman rm -f api-server
+
+    # So they get re-generated by the container spinning up and at the same time
+    # prevent sql migration issues because we're going back and forth between versions
+    # when testing multiple containers back-to-back
+    - name: Discard database and settings file
+      file:
+        path: "{{ item }}"
+        state: absent
+      loop:
+        - "{{ ara_api_root_dir }}/server/ansible.sqlite"
+        - "{{ ara_api_root_dir }}/server/settings.yaml"