Use just one configuration file

We can generate correct values inside it, no need for magic handling
more of the files.

Signed-off-by: Michal Čihař <michal@cihar.com>

Dockerfile

@@ -7,7 +7,7 @@ RUN curl --location https://www.phpmyadmin.net/downloads/phpMyAdmin-latest-all-l
  && mv phpMyAdmin* /www \
  && rm -rf /www/js/jquery/src/ /www/examples /www/po/
 
-COPY config.inc.linked.php config.inc.arbitrary.php /www/
+COPY config.inc.php /www/
 COPY run.sh /run.sh
 RUN chmod u+rwx /run.sh
 

config.inc.arbitrary.php

@@ -1,8 +0,0 @@
-<?php
-
-require('./config.secret.inc.php');
-
-$cfg['AllowArbitraryServer'] = true;
-
-$cfg['UploadDir'] = '';
-$cfg['SaveDir'] = '';

config.inc.php

@@ -2,6 +2,12 @@
 
 require('./config.secret.inc.php');
 
+/* Arbitrary server connection */
+if (isset($_ENV['PMA_ARBITRARY']) && $_ENV['PMA_ARBITRARY'] === '1') {
+    $cfg['AllowArbitraryServer'] = true;
+}
+
+/* First server */
 $i = 0;
 $i++;
 $cfg['Servers'][$i]['auth_type'] = 'cookie';

run.sh

@@ -1,14 +1,6 @@
 #!/bin/sh
 set -x
 
-# use arbitrary server
-if [ "$PMA_ARBITRARY" ]
-  then
-    cp /www/config.inc.arbitrary.php /www/config.inc.php
-  else
-    cp /www/config.inc.linked.php /www/config.inc.php
-fi
-
 if [ ! -f /www/config.secret.inc.php ] ; then
     cat > /www/config.secret.inc.php <<EOT
 <?php