Use environment variables for changing Docker things.

app/bootstrap.php

@@ -26,12 +26,14 @@ define('APP_INCLUDE_TEMP', APP_INCLUDE_ROOT . '/../www_tmp');
 define('APP_INCLUDE_CACHE', APP_INCLUDE_TEMP . '/cache');
 
 // Set up application environment.
-if (file_exists(APP_INCLUDE_BASE.'/env.ini')) {
+if (APP_INSIDE_DOCKER) {
+    $_ENV = getenv();
+} else if (file_exists(APP_INCLUDE_BASE.'/env.ini')) {
     $_ENV = array_merge($_ENV, parse_ini_file(APP_INCLUDE_BASE.'/env.ini'));
 }
 
 // Application environment.
-define('APP_APPLICATION_ENV', $_ENV['application_env'] ?? 'production');
+define('APP_APPLICATION_ENV', $_ENV['application_env'] ?? $_ENV['APPLICATION_ENV'] ?? 'production');
 define('APP_IN_PRODUCTION', APP_APPLICATION_ENV === 'production');
 
 if (isset($_SERVER['HTTP_X_FORWARDED_PROTO'])) {

app/bootstrap/services.php

@@ -61,11 +61,11 @@ return function (\Slim\Container $di, $settings) {
             ];
 
             if (APP_INSIDE_DOCKER) {
-                $options['conn']['host'] = 'mariadb';
-                $options['conn']['port'] = 3306;
-                $options['conn']['dbname'] = 'azuracast';
-                $options['conn']['user'] = 'azuracast';
-                $options['conn']['password'] = 'azur4c457';
+                $options['conn']['host'] = $_ENV['MYSQL_HOST'] ?? 'mariadb';
+                $options['conn']['port'] = $_ENV['MYSQL_PORT'] ?? 3306;
+                $options['conn']['dbname'] = $_ENV['MYSQL_DATABASE'] ?? 'azuracast';
+                $options['conn']['user'] = $_ENV['MYSQL_USER'] ?? 'azuracast';
+                $options['conn']['password'] = $_ENV['MYSQL_PASSWORD'] ?? 'azur4c457';
             } else {
                 $options['conn']['host'] = $_ENV['db_host'] ?? 'localhost';
                 $options['conn']['port'] = $_ENV['db_port'] ?? '3306';

docker-compose.dev.yml

@@ -8,9 +8,19 @@ services:
   web:
     build:
       context: ../docker-azuracast-web
+    environment:
+      APPLICATION_ENV: "development"
     volumes:
       - .:/var/azuracast/www
 
+  cli:
+    environment:
+      APPLICATION_ENV: "development"
+
+  cron:
+    environment:
+       APPLICATION_ENV: "development"
+
   nginx:
     build:
       context: ../docker-azuracast-nginx

docker-compose.yml

@@ -1,5 +1,16 @@
 version: '2'
 
+# Modify variables that are passed into the Docker containers here.
+x-azuracast-env:
+  &default-environment
+    APPLICATION_ENV: "production" # "production" or "development"
+    MYSQL_HOST: "mariadb"         # You can change this if you plan to connect to an external DB host.
+    MYSQL_PORT: 3306              # ^
+    MYSQL_USER: "azuracast"       # Once the database has been installed, don't change this.
+    MYSQL_PASSWORD: "azur4c457"   # ^
+    MYSQL_DATABASE: "azuracast"   # ^
+    MYSQL_RANDOM_ROOT_PASSWORD: "yes"
+
 services:
   nginx:
     image: azuracast/azuracast_nginx:latest
@@ -29,10 +40,7 @@ services:
     volumes:
       - db_data:/var/lib/mysql
     environment:
-      - MYSQL_RANDOM_ROOT_PASSWORD=yes
-      - MYSQL_USER=azuracast
-      - MYSQL_PASSWORD=azur4c457
-      - MYSQL_DATABASE=azuracast
+      << : *default-environment
     restart: always
 
   influxdb:
@@ -52,6 +60,8 @@ services:
       - influxdb
       - stations
       - redis
+    environment:
+      << : *default-environment
     volumes:
       - www_data:/var/azuracast/www
       - tmp_data:/var/azuracast/www_tmp
@@ -68,6 +78,8 @@ services:
       - influxdb
       - stations
       - redis
+    environment:
+      << : *default-environment
     command: 'cron && tail -f /var/log/cron.log'
     restart: always
 
@@ -80,6 +92,8 @@ services:
       - influxdb
       - stations
       - redis
+    environment:
+      << : *default-environment
     user: 'azuracast'
     working_dir: '/var/azuracast/www'
     command: 'bash'