# Docker-Postgres Ansible Role ## Overview This Ansible role is designed to deploy a PostgreSQL database using Docker. It includes tasks for setting up a Docker network, installing PostgreSQL in a Docker container, and initializing the database with a specified user and database. ## Role Variables - `central_postgres_password`: The password for the PostgreSQL superuser (`postgres`). - `database_name`: Name of the database to be created. - `database_username`: Username for the database user. - `database_password`: Password for the database user. ## Role Tasks 1. **Create Docker network for PostgreSQL**: Sets up a Docker network for PostgreSQL communication. 2. **Install PostgreSQL**: Deploys PostgreSQL in a Docker container, attaching it to the created network and setting the superuser password. 3. **Run the docker_postgres tasks once**: Ensures that the tasks are only run once to avoid redundancy. ## Handlers - **Create database**: Creates a new database with the specified name. - **Create database user**: Sets up a user with full privileges on the newly created database. ## Usage 1. Set the required variables in your playbook or inventory file. 2. Include this role in your playbook. 3. Run the playbook against the target host. ## Notes - The PostgreSQL server is bound to `127.0.0.1:5432` on the host machine, making it accessible only from localhost. - Ensure that the provided passwords are secure and stored securely, preferably using Ansible Vault or another encryption method.