Rename project template Docker Compose volumes

Rationale: consistent image, volume etc. naming conventions

docs/deployment-with-docker.rst

@@ -73,7 +73,7 @@ You can read more about this here at `Automatic HTTPS`_ in the Caddy docs.
 (Optional) Postgres Data Volume Modifications
 ---------------------------------------------
 
-Postgres is saving its database files to the ``postgres_data`` volume by default. Change that if you want something else and make sure to make backups since this is not done automatically.
+Postgres is saving its database files to the ``production_postgres_data`` volume by default. Change that if you want something else and make sure to make backups since this is not done automatically.
 
 
 Building & Running Production Stack

docs/developing-locally-docker.rst

@@ -91,8 +91,8 @@ This is the excerpt from your project's ``local.yml``: ::
       context: .
       dockerfile: ./compose/production/postgres/Dockerfile
     volumes:
-      - postgres_data_local:/var/lib/postgresql/data
-      - postgres_backup_local:/backups
+      - local_postgres_data:/var/lib/postgresql/data
+      - local_postgres_data_backups:/backups
     env_file:
       - ./.envs/.local/.postgres
 

{{cookiecutter.project_slug}}/local.yml

@@ -1,8 +1,8 @@
 version: '3'
 
 volumes:
-  postgres_data_local: {}
-  postgres_backup_local: {}
+  local_postgres_data: {}
+  local_postgres_data_backups: {}
 
 services:
   django:{% if cookiecutter.use_celery == 'y' %} &django{% endif %}
@@ -30,8 +30,8 @@ services:
       dockerfile: ./compose/production/postgres/Dockerfile
     image: {{ cookiecutter.project_slug }}_production_postgres
     volumes:
-      - postgres_data_local:/var/lib/postgresql/data
-      - postgres_backup_local:/backups
+      - local_postgres_data:/var/lib/postgresql/data
+      - local_postgres_data_backups:/backups
     env_file:
       - ./.envs/.local/.postgres
   {%- if cookiecutter.use_mailhog == 'y' %}

{{cookiecutter.project_slug}}/production.yml

@@ -1,9 +1,9 @@
 version: '3'
 
 volumes:
-  postgres_data: {}
-  postgres_backup: {}
-  caddy: {}
+  production_postgres_data: {}
+  production_postgres_data_backups: {}
+  production_caddy: {}
 
 services:
   django:{% if cookiecutter.use_celery == 'y' %} &django{% endif %}
@@ -25,8 +25,8 @@ services:
       dockerfile: ./compose/production/postgres/Dockerfile
     image: {{ cookiecutter.project_slug }}_production_postgres
     volumes:
-      - postgres_data:/var/lib/postgresql/data
-      - postgres_backup:/backups
+      - production_postgres_data:/var/lib/postgresql/data
+      - production_postgres_data_backups:/backups
     env_file:
       - ./.envs/.production/.postgres
 
@@ -38,7 +38,7 @@ services:
     depends_on:
       - django
     volumes:
-      - caddy:/root/.caddy
+      - production_caddy:/root/.caddy
     env_file:
       - ./.envs/.production/.caddy
     ports: