Add all files needed to bring up VM and run agaric.com locally

box/provisioning/roles/geerlingguy.postgresql/defaults/main.yml

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+---
+# RHEL/CentOS only. Set a repository to use for PostgreSQL installation.
+postgresql_enablerepo: ""
+
+postgresql_python_library: python-psycopg2
+postgresql_user: postgres
+postgresql_group: postgres
+
+postgresql_unix_socket_directories:
+  - /var/run/postgresql
+
+# Global configuration options that will be set in postgresql.conf.
+postgresql_global_config_options:
+  - option: unix_socket_directories
+    value: '{{ postgresql_unix_socket_directories | join(",") }}'
+
+# Host based authentication (hba) entries to be added to the pg_hba.conf. This
+# variable's defaults reflect the defaults that come with a fresh installation.
+postgresql_hba_entries:
+  - { type: local, database: all, user: postgres, auth_method: peer }
+  - { type: local, database: all, user: all, auth_method: peer }
+  - { type: host, database: all, user: all, address: '127.0.0.1/32', auth_method: md5 }
+  - { type: host, database: all, user: all, address: '::1/128', auth_method: md5 }
+
+# Debian only. Used to generate the locales used by PostgreSQL databases.
+postgresql_locales:
+  - 'en_US.UTF-8'
+
+# Databases to ensure exist.
+postgresql_databases: []
+  # - name: exampledb # required; the rest are optional
+  #   lc_collate: # defaults to 'en_US.UTF-8'
+  #   lc_ctype: # defaults to 'en_US.UTF-8'
+  #   encoding: # defaults to 'UTF-8'
+  #   template: # defaults to 'template0'
+  #   login_host: # defaults to 'localhost'
+  #   login_password: # defaults to not set
+  #   login_user: # defaults to '{{ postgresql_user }}'
+  #   login_unix_socket: # defaults to 1st of postgresql_unix_socket_directories
+  #   port: # defaults to not set
+  #   state: # defaults to 'present'
+
+# Users to ensure exist.
+postgresql_users: []
+  # - name: jdoe #required; the rest are optional
+  #   password: # defaults to not set
+  #   priv: # defaults to not set
+  #   role_attr_flags: # defaults to not set
+  #   db: # defaults to not set
+  #   login_host: # defaults to 'localhost'
+  #   login_password: # defaults to not set
+  #   login_user: # defaults to '{{ postgresql_user }}'
+  #   login_unix_socket: # defaults to 1st of postgresql_unix_socket_directories
+  #   port: # defaults to not set
+  #   state: # defaults to 'present'