As website developers, we noticed that we had a few problems. You may have the same problems:
- On our development laptops, we have a number of sites, but the database connection details are the same for each of them. Why should we have to go through the installation process and re-enter them each time?
- Each of those sites needed to be in development mode when we were editing them on our laptops, but in production mode when we deploy them to our servers. Additionally, our production host's database connection details will likely be different than our local server.
SilverStripe comes with a solution to this: the
_ss_environment.php file. You can put a single
file in your "projects" folder on your development box, and it will be used by each of your development sites.
Setting up your development machine with _ss_environment.php
In this example, we assume that you are managing multiple projects as subfolders of
~/Sites/, and that you can visit
http://localhost/. For example, you might have a project at
~/Sites/myproject/, and visit it at
Create a new file,
~/Sites/_ss_environment.php. Put the following content in it, editing the values of the
"SSDATABASE..." and "SSDEFAULT_ADMIN..." defines as appropriate.
<?php /* What kind of environment is this: development, test, or live (ie, production)? */ define('SS_ENVIRONMENT_TYPE', 'dev/test/live'); /* Database connection */ define('SS_DATABASE_SERVER', 'localhost'); define('SS_DATABASE_USERNAME', 'root'); define('SS_DATABASE_PASSWORD', ''); /* Configure a default username and password to access the CMS on all sites in this environment. */ define('SS_DEFAULT_ADMIN_USERNAME', 'username'); define('SS_DEFAULT_ADMIN_PASSWORD', 'password');
Now, edit each of your site's configuration file, usually
mysite/_config.php. Delete all mention
Director::set_dev_servers, and instead make sure that you file starts like this.
<?php global $project; $project = 'mysite'; global $database; $database = '(databasename)'; // Use _ss_environment.php file for configuration require_once("conf/ConfigureFromEnv.php");
How it works
The mechanism by which the
_ss_environment.php files work is quite simple. Here's how it works:
- At the beginning of SilverStripe's execution, the
_ss_environment.phpfile is searched for, and if it is found, it's included. SilverStripe looks in all the parent folders of framework up to the server root (using the REAL location of the dir - see PHP realpath()):
_ss_environment.phpfile sets a number of "define()".
- "conf/ConfigureFromEnv.php" is included from within your
mysite/_config.php. This file has a number of regular configuration commands that use those defines as their arguments. If you are curious, open up
framework/conf/ConfigureFromEnv.phpand see for yourself!
This is my
_ss_environment.php file. I have it placed in
/var, as each of the sites are in a subfolder of
<?php // These four define set the database connection details. define('SS_DATABASE_CLASS', 'MySQLPDODatabase'); define('SS_DATABASE_SERVER', 'localhost'); define('SS_DATABASE_USERNAME', 'root'); define('SS_DATABASE_PASSWORD', '<password>'); // This sets a prefix, which is prepended to the $database variable. This is // helpful mainly on shared hosts, when every database has a prefix. define('SS_DATABASE_PREFIX', 'simon_'); // These two lines are a bit complicated. If I'm connecting to the server from // 127.0.0.1 or MyIP and I'm using a browser with a + in the UserAgent, the site // is put in dev mode, otherwise it is put in live mode. Most sites would only // need to put the site in either dev or live mode, thus wont need the IP checks if(isset($_SERVER['REMOTE_ADDR']) && ($_SERVER['REMOTE_ADDR'] == '127.0.0.1' || ($_SERVER['REMOTE_ADDR'] == '<MyIP>' && strpos($_SERVER['HTTP_USER_AGENT'], '+') !== false))) define('SS_ENVIRONMENT_TYPE', 'dev'); else define('SS_ENVIRONMENT_TYPE', 'live'); // These two defines sets a default login which, when used, will always log // you in as an admin, even creating one if none exist. define('SS_DEFAULT_ADMIN_USERNAME', '<email>'); define('SS_DEFAULT_ADMIN_PASSWORD', '<password>'); // This causes errors to be written to the BASE_PATH/silverstripe.log file. // Path must be relative to BASE_PATH define('SS_ERROR_LOG', 'silverstripe.log'); // This is used by sake to know which directory points to which URL global $_FILE_TO_URL_MAPPING; $_FILE_TO_URL_MAPPING['/var/www'] = 'http://simon.geek.nz';
In some circumstances, like connecting to a database on a remote host for example, you may wish to enable SSL encryption to ensure the protection of sensitive information and database access credentials. The code below illustrates how to do so.
MySQLPDODatabaseas of the moment.
<?php // These four define set the database connection details. define('SS_DATABASE_CLASS', 'MySQLPDODatabase'); define('SS_DATABASE_SERVER', 'db1.example.com'); define('SS_DATABASE_USERNAME', '<dbuser>'); define('SS_DATABASE_PASSWORD', '<password>'); // These define the paths to the SSL key, certificate, and CA certificate bundle. define('SS_DATABASE_SSL_KEY', '/path/to/ssl/folder/client-key.pem'); define('SS_DATABASE_SSL_CERT', '/path/to/ssl/folder/client-cert.pem'); define('SS_DATABASE_SSL_CA', '/path/to/ssl/folder/ca-cert.pem'); // When using SSL connections, you also need to supply a username and password to override the default settings define('SS_DEFAULT_ADMIN_USERNAME', 'username'); define('SS_DEFAULT_ADMIN_PASSWORD', 'password');
When running the installer, make sure to check on the
Use _ss_environment file for configuration option under the
Database Configuration section to use the environment file.
|Absolute file path to store temporary files such as cached templates or the class manifest. Needs to be writeable by the webserver user. Defaults to silverstripe-cache in the webroot, and falls back to sys_get_temp_dir(). See getTempFolder() in framework/core/TempPath.php.|
|The database class to use, MySQLPDODatabase, MySQLDatabase, MSSQLDatabase, etc. defaults to MySQLDatabase.|
|The database server to use, defaulting to localhost.|
|The database username (mandatory).|
|The database password (mandatory).|
|The database port.|
|A suffix to add to the database name.|
|A prefix to add to the database name.|
|Set the database timezone to something other than the system timezone.|
|Set the database name. Assumes the |
|Boolean/Int. If defined, then the system will choose a default database name for you if one isn't give in the $database variable. The database name will be "SS_" followed by the name of the folder into which you have installed SilverStripe. If this is enabled, it means that the phpinstaller will work out of the box without the installer needing to alter any files. This helps prevent accidental changes to the environment. If |
|Enable deprecation notices for this environment.|
|The environment type: dev, test or live.|
|The username of the default admin. This is a user with administrative privileges.|
|The password of the default admin. This will not be stored in the database.|
|Protect the site with basic auth (good for test sites).|
When using CGI/FastCGI with Apache, you will have to add the
|If you define this constant, all emails will be redirected to this address.|
|If you define this constant, all emails will be sent from this address.|
|Relative path to the log file.|
|Set to |
|Absolute path to SSL key file|
|Absolute path to SSL certificate file|
|Absolute path to SSL Certificate Authority bundle file|
|Optional setting for custom SSL cipher|