5.7 KiB
Change container versions
One of the core concepts of the Devilbox is to easily change between different versions of a specific service.
Table of Contents
- local
Implications
Configuration changes
Be aware that every version has its own configuration files in the cfg/
directory. If you switch to a different version, you might end up with a different custom configuration. This however only applies, if you have already customized the configuration for your current service.
php_ini
php_fpm_conf
apache_conf
nginx_conf
my_cnf
Data changes
You also have to be aware that all database services (e.g.: MySQL, PostgreSQL, MongoDB, etc) use a per version data directory. If you change the database version you might find that you have an empty database when starting another version.
This is simply a pre-caution to prevent newer versions from upgrading the database files and accidentally making them incompatible for older versions.
If you want to take your data along, do a backup before switching the version and then re-import after the switch:
backup_and_restore_mysql
backup_and_restore_pgsql
backup_and_restore_mongo
Examples
Change PHP version
Stop the Devilbox
Shut down the Devilbox in case it is still running:
# Navigate to the Devilbox directory
host> cd path/to/devilbox
# Stop all container
host> docker-compose stop
Edit the .env
file
Open the .env
file with your favourite editor and navigate to the PHP_SERVER
section. It will look something like this:
#PHP_SERVER=5.3
#PHP_SERVER=5.4
#PHP_SERVER=5.5
#PHP_SERVER=5.6
#PHP_SERVER=7.0
PHP_SERVER=7.1
#PHP_SERVER=7.2
#PHP_SERVER=7.3
As you can see, all available values are already there, but commented. Only one is uncommented. In this example it is 7.1
, which is the PHP version that will be started, once the Devilbox starts.
To change this, simply uncomment your version of choice and save this file. Do not forget to comment (disable) any other version.
In order to enable PHP 5.5, you would change the .env
file like this:
#PHP_SERVER=5.3
#PHP_SERVER=5.4
PHP_SERVER=5.5
#PHP_SERVER=5.6
#PHP_SERVER=7.0
#PHP_SERVER=7.1
#PHP_SERVER=7.2
#PHP_SERVER=7.3
Start the Devilbox
Now save the file and you can start the Devilbox again.
# Navigate to the Devilbox directory
host> cd path/to/devilbox
# Stop all container
host> docker-compose up php httpd bind
start_the_devilbox
Change web server version
Stop the Devilbox
Shut down the Devilbox in case it is still running:
# Navigate to the Devilbox directory
host> cd path/to/devilbox
# Stop all container
host> docker-compose stop
Edit the .env
file
Open the .env
file with your favourite editor and navigate to the HTTPD_SERVER
section. It will look something like this:
#HTTPD_SERVER=apache-2.2
#HTTPD_SERVER=apache-2.4
HTTPD_SERVER=nginx-stable
#HTTPD_SERVER=nginx-mainline
As you can see, all available values are already there, but commented. Only one is uncommented. In this example it is nginx-stable
, which is the web server version that will be started, once the Devilbox starts.
To change this, simply uncomment your version of choice and save this file. Do not forget to comment (disable) any other version.
In order to enable Apache 2.2, you would change the .env
file like this:
HTTPD_SERVER=apache-2.2
#HTTPD_SERVER=apache-2.4
#HTTPD_SERVER=nginx-stable
#HTTPD_SERVER=nginx-mainline
Start the Devilbox
Now save the file and you can start the Devilbox again.
# Navigate to the Devilbox directory
host> cd path/to/devilbox
# Stop all container
host> docker-compose up php httpd bind
start_the_devilbox
Change whatever version
When you have read how to change the PHP or web server version, it should be fairly simple to change any service version. It behaves in the exact same way.
The variable names of all available services with changable versions are in the following format: <SERVICE>_SERVER
. Just look through the env_file
.
The following variables control service versions: env_php_server
, env_httpd_server
, env_mysql_server
, env_pgsql_server
, env_redis_server
, env_memcd_server
, env_mongo_server
Gotchas
If two versions are uncommented at the same time, always the last one takes precedence.
Consider this .env
file:
#PHP_SERVER=5.3
#PHP_SERVER=5.4
PHP_SERVER=5.5
#PHP_SERVER=5.6
PHP_SERVER=7.0
#PHP_SERVER=7.1
#PHP_SERVER=7.2
#PHP_SERVER=7.3
Both, PHP 5.5 and PHP 7.0 are uncommented, however, when you start the Devilbox, it will use PHP 7.0 as this value overwrites any previous ones.
Checklist
- Stop the Devilbox
- Uncomment version of choice in
.env
- Start the Devilbox
troubleshooting