Restructuring for new backup solution

roles/svc-db-postgres/Administration.md

@@ -1,7 +1,10 @@
 # Administration
 
 ## Root Access
+
 To access the database via the root account execute the following on the server:
+
 ```bash
-docker exec -it "{{ applications['postgres'].hostname }}" psql -U postgres
+# Assuming the container name is postgres
+docker exec -it postgres psql -U postgres
 ```

roles/svc-db-postgres/config/main.yml

@@ -1,11 +1,14 @@
-hostname: "svc-db-postgres"
-network:  "<< defaults_applications[svc-db-postgres].hostname >>"
 docker:
   services:
     postgres:
       # Postgis is necessary for mobilizon
-      image: postgis/postgis
+      image:    postgis/postgis
+      name:     postgres
       # Please set an version in your inventory file! 
       # Rolling release isn't recommended
-      version: "latest"
-      volume:  "<< defaults_applications[svc-db-postgres].hostname >>_data"
+      version:  "latest"
+      backup:
+        datase_routine: true
+  volumes:
+    data:     "postgres_data"
+  network:    "postgres"

roles/svc-db-postgres/tasks/main.yml

@@ -8,7 +8,7 @@
 
 - name: Install PostgreSQL
   docker_container:
-    name: "{{ postgres_hostname }}"
+    name: "{{ postgres_name }}"
     image: "{{ postgres_image }}:{{ postgres_version }}"
     detach: yes
     env:
@@ -31,7 +31,7 @@
   when: run_once_docker_postgres is not defined
 
 - name: Wait for Postgres inside the container
-  shell: "docker exec {{ postgres_hostname }} pg_isready -U postgres"
+  shell: "docker exec {{ postgres_name }} pg_isready -U postgres"
   register: pg_ready
   until: pg_ready.rc == 0
   retries: 30

roles/svc-db-postgres/vars/main.yml

@@ -1,6 +1,6 @@
 application_id:         svc-db-postgres
-postgres_volume:        "{{ applications | get_app_conf(application_id, 'docker.services.postgres.volume', True) }}"
-postgres_hostname:      "{{ applications | get_app_conf(application_id, 'hostname', True) }}"
+postgres_volume:        "{{ applications | get_app_conf(application_id, 'docker.volumes.data', True) }}"
+postgres_name:          "{{ applications | get_app_conf(application_id, 'docker.services.postgres.name', True) }}"
 postgres_image:         "{{ applications | get_app_conf(application_id, 'docker.services.postgres.image', True) }}"
 postgres_subnet:        "{{ networks.local['svc-db-postgres'].subnet }}"
 postgres_network_name:  "{{ applications | get_app_conf(application_id, 'network', True) }}"