Refactor tacker role

Update the role with the new way to create OSA roles

Signed-off-by: Manuel Buil <mbuil@suse.com>

tasks/tacker_db_setup.yml

@@ -13,32 +13,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-- name: Create DB for service
-  mysql_db:
-    login_user: "{{ galera_root_user }}"
-    login_password: "{{ galera_root_password }}"
-    login_host: "{{ tacker_galera_address }}"
-    name: "{{ tacker_galera_database }}"
-    state: "present"
-  tags:
-    - tacker-db-setup
-
-- name: Grant access to the DB for the service
-  mysql_user:
-    login_user: "{{ galera_root_user }}"
-    login_password: "{{ galera_root_password }}"
-    login_host: "{{ tacker_galera_address }}"
-    name: "{{ tacker_galera_user }}"
-    password: "{{ tacker_container_mysql_password }}"
-    host: "{{ item }}"
-    state: "present"
-    priv: "{{ tacker_galera_database }}.*:ALL"
-  with_items:
-    - "localhost"
-    - "%"
-  tags:
-    - tacker-db-setup
-
 - name: Perform a tacker DB sync
   command: "{{ tacker_bin }}/tacker-db-manage 
     --config-file {{ tacker_etc_dir }}/tacker.conf upgrade head"
@@ -48,4 +22,3 @@
     - tacker-db-sync
     - tacker-setup
     - tacker-command-bin
-

tasks/tacker_install.yml

@@ -75,28 +75,17 @@
     return_content: True
   when:
     - not tacker_developer_mode | bool
-  register: remote_venv_checksum
+  register: tacker_venv_checksum
 
-# TODO: When project moves to ansible 2 we can pass this a sha256sum which will:
-#       a) allow us to remove force: yes
-#       b) allow the module to calculate the checksum of dest file which would
-#          result in file being downloaded only if provided and dest sha256sum
-#          checksums differ
 - name: Attempt venv download
   get_url:
     url: "{{ tacker_venv_download_url }}"
     dest: "/var/cache/{{ tacker_venv_download_url | basename }}"
-    force: yes
+    checksum: "sha1:{{ tacker_venv_checksum.content | trim }}"
   ignore_errors: true
-  register: get_venv
+  register: tacker_get_venv
   when:
     - not tacker_developer_mode | bool
-    - (local_venv_stat.stat.exists == False or
-        {{ local_venv_stat.stat.checksum is defined and local_venv_stat.stat.checksum != remote_venv_checksum.content | trim }})
-
-- name: Set tacker get_venv fact
-  set_fact:
-    tacker_get_venv: "{{ get_venv }}"
 
 - name: Remove existing venv
   file: