fix(Docker): update ENV syntax to use key=value format #0000

The `Dockerfile` reference[^1] discourages the use of `ENV key val`
format, and recommends the `ENV key=val` format.

This commit replaces the `LegacyKeyValueFormat` to the new format to
avoid the deprecation notices.

[^1]: https://docs.docker.com/reference/dockerfile/#env

Author: Ayesh

Dockerfile.php7

@@ -2,12 +2,12 @@ FROM php:7-apache
 
 EXPOSE 80
 
-ENV APACHE_RUN_USER    www-data
-ENV APACHE_RUN_GROUP   www-data
-ENV APACHE_LOCK_DIR    /var/lock/apache2
-ENV APACHE_LOG_DIR     /var/log/apache2
-ENV APACHE_PID_FILE    /var/run/apache2/apache2.pid
-ENV APACHE_SERVER_NAME php-docker-base-linkorb
+ENV APACHE_RUN_USER=www-data
+ENV APACHE_RUN_GROUP=www-data
+ENV APACHE_LOCK_DIR=/var/lock/apache2
+ENV APACHE_LOG_DIR=/var/log/apache2
+ENV APACHE_PID_FILE=/var/run/apache2/apache2.pid
+ENV APACHE_SERVER_NAME=php-docker-base-linkorb
 
 COPY ./php.ini-production "$PHP_INI_DIR/php.ini"
 

Dockerfile.php8

@@ -2,12 +2,12 @@ FROM php:8.3-apache
 
 EXPOSE 80
 
-ENV APACHE_RUN_USER    www-data
-ENV APACHE_RUN_GROUP   www-data
-ENV APACHE_LOCK_DIR    /var/lock/apache2
-ENV APACHE_LOG_DIR     /var/log/apache2
-ENV APACHE_PID_FILE    /var/run/apache2/apache2.pid
-ENV APACHE_SERVER_NAME php-docker-base-linkorb
+ENV APACHE_RUN_USER=www-data
+ENV APACHE_RUN_GROUP=www-data
+ENV APACHE_LOCK_DIR=/var/lock/apache2
+ENV APACHE_LOG_DIR=/var/log/apache2
+ENV APACHE_PID_FILE=/var/run/apache2/apache2.pid
+ENV APACHE_SERVER_NAME=php-docker-base-linkorb
 
 COPY ./php.ini-production "$PHP_INI_DIR/php.ini"