Add $AFTER_FIRST_TIME_SQL parameter

It allows a user to add custom SQL commands to the file that is executed
during database initialization. Useful e.g. to provide some initial
content.

Also fixed hardwired directory in my.cnf.
And a minor start.sh code cleanup.

conf/my.cnf

@@ -11,7 +11,7 @@
 # this is only for the mysqld standalone daemon
 [mysqld]
 skip-character-set-client-handshake
-datadir=/var/lib/mysqlmounted
+datadir=${MYSQL_DATADIR}
 socket=/var/lib/mysql/mysql.sock
 character-set-server=utf8
 #default-character-set=utf8

container_files/bin/fix-all-permissions.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+echo "Fixing Permissions"
+chown -R mysql:mysql $MYSQL_DATADIR
+/opt/bin/fix-permissions.sh $MYSQL_DATADIR
+/opt/bin/fix-permissions.sh /var/log/mariadb/
+/opt/bin/fix-permissions.sh /var/run/
+echo "Done Fixing Permissions"

container_files/bin/start.sh

@@ -16,7 +16,8 @@ if [ -e "/tmp/firsttimerunning" ]; then
     fi
 
     echo "Setting DataDir: $MYSQL_DATADIR" >> $log
-
+    sed -e "s=\${MYSQL_DATADIR}=$MYSQL_DATADIR=" < /etc/my.cnf > /etc/my.cnf
+
     if [[ $CREATE_NEW_DATABASE == 1 || ($CREATE_NEW_DATABASE == if_needed && ( ! -d $MYSQL_DATADIR || -z $(ls -A $MYSQL_DATADIR) ) ) ]]; then
 
         echo "Installing MariaDB" >> $log
@@ -26,15 +27,15 @@ if [ -e "/tmp/firsttimerunning" ]; then
             echo >&2 '  Did you forget to add -e MYSQL_ROOT_PASSWORD=... ?' >> $log
             exit 1
         fi
-        
+
         echo 'Running mysql_install_db ...' >> $log
         mysql_install_db --defaults-file=/etc/my.cnf --datadir="$MYSQL_DATADIR" >> $log
         echo 'Finished mysql_install_db' >> $log
-        
+
         # These statements _must_ be on individual lines, and _must_ end with
         # semicolons (no line breaks or comments are permitted).
         # TODO proper SQL escaping on ALL the things D:
-        
+
         tempSqlFile='/tmp/mysql-first-time.sql'
         echo "DELETE FROM mysql.user ;" > $tempSqlFile
         echo "CREATE USER 'root'@'%' IDENTIFIED BY '${MYSQL_ROOT_PASSWORD}' ;" >> $tempSqlFile
@@ -43,7 +44,6 @@ if [ -e "/tmp/firsttimerunning" ]; then
         echo "GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' WITH GRANT OPTION;" >> $tempSqlFile
         echo "DROP DATABASE IF EXISTS test ;" >> $tempSqlFile
 
-
         if [ "$MYSQL_DATABASE" != "" ]; then
             echo "flush privileges;" >> "$tempSqlFile"
             echo "CREATE DATABASE IF NOT EXISTS \`$MYSQL_DATABASE\` ;" >> "$tempSqlFile"
@@ -54,29 +54,23 @@ if [ -e "/tmp/firsttimerunning" ]; then
             echo "GRANT ALL ON $MYSQL_DATABASE.* TO '$MYSQL_USER'@'$MYSQL_DATABASE.%_i2network' IDENTIFIED BY '$MYSQL_PASSWORD' ;" >> "$tempSqlFile"
             echo "GRANT ALL ON $MYSQL_DATABASE.* TO '$MYSQL_USER'@'$MYSQL_DATABASE.%_i2network' IDENTIFIED BY '$MYSQL_PASSWORD' ;" >> "$tempSqlFile"
         fi
-    
+
         echo 'FLUSH PRIVILEGES ;' >> "$tempSqlFile"
         # [jvf] mysqld_safe unknown option '--character-set-server=utf8' [FIXME]
         #echo "character-set-server = utf8" >> /etc/my.cnf
         #echo "collation-server = utf8_unicode_ci" >> /etc/my.cnf
         #echo "" >> /etc/my.cnf
-
-        echo "Fixing Permissions" >> $log
-        chown -R mysql:mysql $MYSQL_DATADIR
-        /opt/bin/fix-permissions.sh $MYSQL_DATADIR >> $log
-        /opt/bin/fix-permissions.sh /var/log/mariadb/ >> $log
-        /opt/bin/fix-permissions.sh /var/run/ >> $log
-        echo "Done Fixing Permissions" >> $log
+
+        if [ -e "$AFTER_FIRST_TIME_SQL" ]; then
+            cat $AFTER_FIRST_TIME_SQL >> $tempSqlFile
+        fi
+
+        /opt/bin/fix-all-permissions.sh >> $log
         rm -f /tmp/firsttimerunning
         /usr/bin/mysqld_safe --init-file="$tempSqlFile" --datadir="$MYSQL_DATADIR"
     else
         echo "Not Creating a MariaDB - Using Existing from DataDir: $MYSQL_DATADIR" >> $log
-        echo "Fixing Permissions" >> $log
-        chown -R mysql:mysql $MYSQL_DATADIR
-        /opt/bin/fix-permissions.sh $MYSQL_DATADIR >> $log
-        /opt/bin/fix-permissions.sh /var/log/mariadb/ >> $log
-        /opt/bin/fix-permissions.sh /var/run/ >> $log
-        echo "Done Fixing Permissions" >> $log
+        /opt/bin/fix-all-permissions.sh >> $log
         rm -f /tmp/firsttimerunning
         /usr/bin/mysqld_safe --datadir="$MYSQL_DATADIR"
     fi