feat(snipe_it): add ansible role for deployment

roles/snipe_it/README.md

@@ -13,3 +13,31 @@ for sending email. For installing and configuring MariaDB, see
 
 - `snipe_it_config_app_url`
 - `snipe_it_config_app_key`
+
+### Database configuration
+
+All (database) options from the upstream laravel `.env` file are available
+under the `snipe_it_config_db_*` prefix. Configure a database as follows:
+```
+snipe_it_config_db_host: localhost # defaults to localhost
+snipe_it_config_db_port: "3306" # defaults to 3306
+snipe_it_config_db_database: my_snipe_db_name # defaults to 'snipeit'
+snipe_it_config_db_username: my_snipe_db_user # defaults to 'snipeit'
+snipe_it_config_db_password: my_snipe_db_password
+# Set this if the database is shared with
+# other applications. defaults to not set
+snipe_it_config_db_prefix: snipe_
+```
+
+### Email configuration
+
+Configuring an email server is mandatory. An example is provided below:
+```yaml
+snipe_it_config_mail_host: smtp.example.com
+snipe_it_config_mail_username: snipe_user@snipe.example.com
+snipe_it_config_mail_password: i_want_to_be_strong_and_long
+snipe_it_config_mail_from_addr: "noreply@snipe.example.com"
+snipe_it_config_mail_from_name: "Example.com SnipeIT instance"
+```
+
+The default smtp port is `587` and can be set in `snipe_it_config_mail_port`.

roles/snipe_it/defaults/main/config.yml

@@ -35,7 +35,7 @@ snipe_it_config_db_ssl_verify_server: ~
 
 snipe_it_config_mail_mailer: smtp
 snipe_it_config_mail_host: ~
-snipe_it_config_mail_port:
+snipe_it_config_mail_port: 587
 snipe_it_config_mail_username: ~
 snipe_it_config_mail_password: ~
 snipe_it_config_mail_tls_verify_peer: true