Environment Variables

Amazee.io exposes services to the web application by making use of environment variables.

Variable	Content	Example
`AMAZEEIO`	Exists all the times (to tell if you are on an amazee.io environemnt or not)	`AMAZEEIO`
`AMAZEEIO_BASE_URL`	Full main URL (with http or https) of the current site. To be used for Drupal 7 `$base_url` setting, plus Drush `$options['uri']` setting.	`http://mysite.com.develop.zh1.compact.amazee.io`
`AMAZEEIO_DB_HOST`	Database Hostname	`127.0.0.1`
`AMAZEEIO_DB_USERNAME`	Autogenerated database username (will change automatically!)	`9YX8soP9b7acN6FXM2Ho`
`AMAZEEIO_DB_PASSWORD`	Autogenerated database password (will change automatically!)	`rX3hy2MJRk27g82MkjZq`
`AMAZEEIO_DB_PORT`	Database Port	`3306`
`AMAZEEIO_HASH_SALT`	Autogenerated Hash Salt for Drupal. Is the same accross multiple sites within a sitegroup	`0e5b57dfc4d01959a40c2fcb16b1d785`
`AMAZEEIO_HOSTINGSTACK`	The stack identifier this site is running	`compact` or `cluster`
`AMAZEEIO_LOCATION`	System location (used for debugging purposes)	`digitalocean`
`AMAZEEIO_REDIS_PORT`	Redis port	`6379`
`AMAZEEIO_REDIS_HOST`	Redis ip address)	`127.0.0.1`
`AMAZEEIO_SITE_BRANCH`	The branch configured for your site	`prod`
`AMAZEEIO_SITE_ENVIRONMENT`	Environment Type	`production` or `development`
`AMAZEEIO_SITE_GROUP`	Sitegroup name	`mysite_com`
`AMAZEEIO_SITE_NAME`	Sitegroup name suffixed with branch	`mysite_com_prod`
`AMAZEEIO_SITE_URL`	Main URL (without http or https) of the current site. To be used for Drupal 8 `$trusted_host_patterns` setting.	`mysite.com.develop.zh1.compact.amazee.io`
`AMAZEEIO_SOLR_CORE`	Apache Solr Core name (only if Solr enabled for site)	`mysite_com`
`AMAZEEIO_SOLR_HOST`	Apache Solr Host (only if Solr enabled for site)	`127.0.0.1`
`AMAZEEIO_SOLR_PORT`	Apache Solr Port (only if Solr enabled for site)	`8149`
`AMAZEEIO_TMP_PATH`	Absolute path of temporary directory	`/var/www/mysite_com_prod/tmp`
`AMAZEEIO_VARNISH_HOSTS`	Varnish Hosts, comma separated if multiple (on cluster stacks)	`10.144.64.15,10.144.64.16`
`AMAZEEIO_VARNISH_SECRET`	Varnish Secret (used to authenticate to Varnish for Commands like bans)	`2PJt6hzzD-xmDYjHtpHaHe-Ld42sCCXpGaitQRg-6shG2q`
`AMAZEEIO_WEBROOT`	absolute path of the webroot inside the `public_html` directory	`/var/www/drupal/public_html/web` or `/var/www/drupal/public_html`

Environment variables can be access from your web application by using PHP's getenv() function.

$database_username = getenv('AMAZEEIO_DB_USERNAME');

For examples on how to use these Environment variables, see: Settings.php Files