Laradock: как включить / установить расширение поддержки php7 ldap?

Я установил докер с Ларадоком.

Я использую следующий пакет

"adldap2/adldap2-laravel": "^2.1"

Я получаю следующую ошибку:

Call to undefined function Adldap\ldap_explode_dn()

Должен ли я войти в мое рабочее пространство докера и попытаться установить его?

docker-compose exec  workspace bash

Как мне его установить?
Кажется, я не могу найти пакет php7.0-ldap из apt-get или apt-cache …

Возможно ли включить его через docker-compose или путем редактирования какого-либо файла docker? (php-fpm / Dockerfile-70?

РЕДАКТИРОВАТЬ: (полное содержимое DockerFile-70 с предоставленным решением)

#
#--------------------------------------------------------------------------
# Image Setup
#--------------------------------------------------------------------------
#
# To edit the 'php-fpm' base Image, visit its repository on Github
#    https://github.com/LaraDock/php-fpm
#
# To change its version, see the available Tags on the Docker Hub:
#    https://hub.docker.com/r/laradock/php-fpm/tags/
#

FROM laradock/php-fpm:7.0--1.2

MAINTAINER Mahmoud Zalt <[email protected]>

#
#--------------------------------------------------------------------------
# Mandatory Software's Installation
#--------------------------------------------------------------------------
#
# Mandatory Software's such as ("mcrypt", "pdo_mysql", "libssl-dev", ....)
# are installed on the base image 'laradock/php-fpm' image. If you want
# to add more Software's or remove existing one, you need to edit the
# base image (https://github.com/LaraDock/php-fpm).
#

#
#--------------------------------------------------------------------------
# Optional Software's Installation
#--------------------------------------------------------------------------
#
# Optional Software's will only be installed if you set them to `true`
# in the `docker-compose.yml` before the build.
# Example:
#   - INSTALL_ZIP_ARCHIVE=true
#   - ...
#

#####################################
# xDebug:
#####################################

ARG INSTALL_XDEBUG=false
RUN if [ ${INSTALL_XDEBUG} = true ]; then \
# Install the xdebug extension
pecl install xdebug && \
docker-php-ext-enable xdebug \
;fi

# Copy xdebug configration for remote debugging
COPY ./xdebug.ini /usr/local/etc/php/conf.d/xdebug.ini

#####################################
# MongoDB:
#####################################

ARG INSTALL_MONGO=false
RUN if [ ${INSTALL_MONGO} = true ]; then \
# Install the mongodb extension
pecl install mongodb && \
docker-php-ext-enable mongodb \
;fi

#####################################
# ZipArchive:
#####################################

ARG INSTALL_ZIP_ARCHIVE=false
RUN if [ ${INSTALL_ZIP_ARCHIVE} = true ]; then \
# Install the zip extension
pecl install zip && \
docker-php-ext-enable zip \
;fi

#####################################
# PHP Memcached:
#####################################

ARG INSTALL_MEMCACHED=false
RUN if [ ${INSTALL_MEMCACHED} = true ]; then \
# Install the php memcached extension
curl -L -o /tmp/memcached.tar.gz "https://github.com/php-memcached-dev/php-memcached/archive/php7.tar.gz" \
&& mkdir -p memcached \
&& tar -C memcached -zxvf /tmp/memcached.tar.gz --strip 1 \
&& ( \
cd memcached \
&& phpize \
&& ./configure \
&& make -j$(nproc) \
&& make install \
) \
&& rm -r memcached \
&& rm /tmp/memcached.tar.gz \
&& docker-php-ext-enable memcached \
;fi

#####################################
# PHP Aerospike:
#####################################

ARG INSTALL_AEROSPIKE_EXTENSION=false
ENV INSTALL_AEROSPIKE_EXTENSION ${INSTALL_AEROSPIKE_EXTENSION}
# Copy aerospike configration for remote debugging
COPY ./aerospike.ini /usr/local/etc/php/conf.d/aerospike.ini
RUN if [ ${INSTALL_AEROSPIKE_EXTENSION} = true ]; then \
# Install the php aerospike extension
curl -L -o /tmp/aerospike-client-php.tar.gz "https://github.com/luciano-jr/aerospike-client-php/archive/    master.tar.gz" \
&& mkdir -p aerospike-client-php \
&& tar -C aerospike-client-php -zxvf /tmp/aerospike-client-php.tar.gz --strip 1 \
&& ( \
cd aerospike-client-php/src/aerospike \
&& phpize \
&& ./build.sh \
&& make install \
) \
&& rm /tmp/aerospike-client-php.tar.gz \
;fi

#####################################
# Opcache:
#####################################
ARG INSTALL_OPCACHE=false
RUN if [ ${INSTALL_OPCACHE} = true ]; then \
docker-php-ext-install opcache && \
docker-php-ext-enable opcache \
;fi

# Copy opcache configration
COPY ./opcache.ini /usr/local/etc/php/conf.d/opcache.ini

#####################################
# LDAP:
#####################################
RUN \
apt-get update && \
apt-get install libldap2-dev -y && \
#rm -rf /var/lib/apt/lists/* && \
docker-php-ext-configure ldap --with-libdir=lib/x86_64-linux-gnu/ && \
docker-php-ext-install ldap#
#--------------------------------------------------------------------------
# Final Touch
#--------------------------------------------------------------------------
#

ADD ./laravel.ini /usr/local/etc/php/conf.d
ADD ./laravel.pool.conf /usr/local/etc/php-fpm.d/

RUN rm -r /var/lib/apt/lists/*

RUN usermod -u 1000 www-data

WORKDIR /var/www/laravel

CMD ["php-fpm"]

EXPOSE 9000