Extend Dockerfile with volumes for shared temp data and custon config files

docker/Dockerfile

@@ -19,7 +19,10 @@ RUN docker-php-ext-configure ldap --with-libdir=lib/x86_64-linux-gnu && docker-p
 # enable mod_rewrite
 RUN a2enmod rewrite
 
+# expose these volumes
 VOLUME /var/www/html
+VOLUME /var/roundcube/config
+VOLUME /tmp/roundcube-temp
 
 # Define Roundcubemail version
 ENV ROUNDCUBEMAIL_VERSION 1.3.3
@@ -37,6 +40,9 @@ RUN curl -o roundcubemail.tar.gz -SL https://github.com/roundcube/roundcubemail/
   && rm -rf /usr/src/roundcubemail/installer \
 && rm roundcubemail.tar.gz
 
+# include the wait-for-it.sh script
+RUN curl https://raw.githubusercontent.com/vishnubob/wait-for-it/master/wait-for-it.sh > /wait-for-it.sh && chmod +x /wait-for-it.sh
+
 COPY docker-entrypoint.sh /
 
 ENTRYPOINT ["/docker-entrypoint.sh"]

docker/README.md

@@ -47,6 +47,19 @@ Run it with a link to the MySQL host and the username/password variables:
 docker run --link=mysql:mysql -d roundcube/roundcubemail
 ```
 
+### Advanced configuration
+
+Apart from the above described environment variables, the Docker image also allows to add custom config files
+which are merged into Roundcube's default config. Therefore the image defines a volume `/var/roundcube/config`
+where additional config files (`*.php`) are searched and included. Mount a local directory with your config
+files - check for valid PHP syntax - when starting the Docker container:
+
+```
+docker run -v ./config/:/var/roundcube/config/ -d roundcube/roundcubemail
+```
+
+Check our wiki for a reference of [Roundcube config options](https://github.com/roundcube/roundcubemail/wiki/Configuration).
+
 ## Building a Docker image
 
 Use the `Dockerfile` in this directory to build your own Docker image.

docker/docker-entrypoint.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-set -ex
+# set -ex
 
 # PWD=`pwd`
 
@@ -22,6 +22,8 @@ if [[ "$1" == apache2* ]] || [ "$1" == php-fpm ]; then
     : "${ROUNDCUBEMAIL_DB_PASSWORD:=${POSTGRES_ENV_POSTGRES_PASSWORD}}"
     : "${ROUNDCUBEMAIL_DB_NAME:=${POSTGRES_ENV_POSTGRES_DB:-roundcubemail}}"
     : "${ROUNDCUBEMAIL_DSNW:=${ROUNDCUBEMAIL_DB_TYPE}://${ROUNDCUBEMAIL_DB_USER}:${ROUNDCUBEMAIL_DB_PASSWORD}@${ROUNDCUBEMAIL_DB_HOST}/${ROUNDCUBEMAIL_DB_NAME}}"
+
+    /wait-for-it.sh ${ROUNDCUBEMAIL_DB_HOST}:5432 -t 30
   elif [ ! -z "${!MYSQL_ENV_MYSQL_*}" ]; then
     : "${ROUNDCUBEMAIL_DB_TYPE:=mysql}"
     : "${ROUNDCUBEMAIL_DB_HOST:=mysql}"
@@ -33,6 +35,8 @@ if [[ "$1" == apache2* ]] || [ "$1" == php-fpm ]; then
     fi
     : "${ROUNDCUBEMAIL_DB_NAME:=${MYSQL_ENV_MYSQL_DATABASE:-roundcubemail}}"
     : "${ROUNDCUBEMAIL_DSNW:=${ROUNDCUBEMAIL_DB_TYPE}://${ROUNDCUBEMAIL_DB_USER}:${ROUNDCUBEMAIL_DB_PASSWORD}@${ROUNDCUBEMAIL_DB_HOST}/${ROUNDCUBEMAIL_DB_NAME}}"
+
+    /wait-for-it.sh ${ROUNDCUBEMAIL_DB_HOST}:3306 -t 30
   else
     # use local SQLite DB in /var/www/html/db
     : "${ROUNDCUBEMAIL_DB_TYPE:=sqlite}"
@@ -69,10 +73,14 @@ if [[ "$1" == apache2* ]] || [ "$1" == php-fpm ]; then
     \$config['log_dir'] = '${ROUNDCUBEMAIL_LOG_DIR}';
     \$config['temp_dir'] = '${ROUNDCUBEMAIL_TEMP_DIR}';
     \$config['plugins'] = ['${ROUNDCUBEMAIL_PLUGINS_PHP}'];
-    ?>" | tee config/config.inc.php
+    " | tee config/config.inc.php
+
+    for fn in `ls /var/roundcube/config/*.php`; do
+      echo "include('$fn');" >> config/config.inc.php
+    done
 
     # initialize DB if not SQLite
-    echo "${ROUNDCUBEMAIL_DSNW}" | grep -q 'sqlite:' || bin/initdb.sh --dir=$PWD/SQL || bin/updatedb.sh --dir=$PWD/SQL --package=roundcube
+    echo "${ROUNDCUBEMAIL_DSNW}" | grep -q 'sqlite:' || bin/initdb.sh --dir=$PWD/SQL || bin/updatedb.sh --dir=$PWD/SQL --package=roundcube || echo "Failed to initialize databse. Please run $PWD/bin/initdb.sh manually."
   else
     echo "WARNING: $PWD/config/config.inc.php already exists."
     echo "ROUNDCUBEMAIL_* environment variables have been ignored."