clean up the unused ansible files

Former-commit-id: 7080aac1ae6e9afcd322057b075e4ec48a3a150b

ansible/ansible.sh

-#!/bin/bash
-ansible-playbook -i ./hosts $1
\ No newline at end of file

ansible/config_files.yaml

----
-- name: Copy configuration files
-  hosts: all
-  gather_facts: no
-
-  tasks:
-    - name: nginx config file
-      template: src=../config/nginx.conf dest=/etc/nginx/sites-enabled/django
-      register: nginx_config
-    - name: nginx restart
-      service: name=nginx state=restarted
-      when: nginx_config.changed
-    - name: uwsgi config file
-      template: src=../config/uwsgi.ini dest=/etc/uwsgi/apps-enabled/django.ini
-      register: uwsgi_config
-    - name: uwsgi restart
-      service: name=uwsgi state=restarted
-      when: uwsgi_config.changed

ansible/packages.yaml

----
-- hosts: all
-  gather_facts: no
-  tasks:
-    - name: Running apt update
-      apt: update_cache=yes
-    - name: Installing required packages
-      apt: name={{item}} state=present
-      with_items:
-       - fail2ban
-       - postgresql
-       - postgresql-client
-       - git
-       - python-pip
-       - rdiff-backup
-       - libpq-dev
-       - python-psycopg2
-       - uwsgi
-       - uwsgi-plugin-python
-       - nginx

ansible/postgresql.yaml

----
-- hosts: all
-  become: yes
-  become_user: postgres
-  gather_facts: no
-
-  tasks:
-  - name: ensure database is created
-    postgresql_db: name={{dbname}}
-  - name: ensure user has access to database
-    postgresql_user: db={{dbname}} name={{dbuser}} password={{dbpassword}} priv=ALL
-  - name: ensure user does not have unnecessary privilege
-    postgresql_user: name={{dbuser}} role_attr_flags=NOSUPERUSER,NOCREATEDB

ansible/upgrade.yaml

----
-- hosts: all
-  gather_facts: no
-  tasks:
-    - name: Running update and safe-upgrade
-      apt:
-        update_cache=yes
-        upgrade=safe
-      register: result
-    - debug: var=result.stdout_lines