image/Dockerfile

# Use osixia/light-baseimage
# sources: https://github.com/osixia/docker-light-baseimage
FROM osixia/light-baseimage:1.1.2

ARG LDAP_OPENLDAP_GID
ARG LDAP_OPENLDAP_UID

# Add openldap user and group first to make sure their IDs get assigned consistently, regardless of whatever dependencies get added
# If explicit uid or gid is given, use it.
RUN if [ -z "${LDAP_OPENLDAP_GID}" ]; then groupadd -r openldap; else groupadd -r -g ${LDAP_OPENLDAP_GID} openldap; fi \
    && if [ -z "${LDAP_OPENLDAP_UID}" ]; then useradd -r -g openldap openldap; else useradd -r -g openldap -u ${LDAP_OPENLDAP_UID} openldap; fi

# Add stretch-backports in preparation for downloading newer openldap components, especially sladp
RUN echo "deb http://ftp.debian.org/debian stretch-backports main" >> /etc/apt/sources.list

# Install OpenLDAP, ldap-utils and ssl-tools from the (backported) baseimage and clean apt-get files
# sources: https://github.com/osixia/docker-light-baseimage/blob/stable/image/tool/add-service-available
#          https://github.com/osixia/docker-light-baseimage/blob/stable/image/service-available/:ssl-tools/download.sh
RUN echo "path-include /usr/share/doc/krb5*" >> /etc/dpkg/dpkg.cfg.d/docker && apt-get -y update \
    && /container/tool/add-service-available :ssl-tools \
	  && LC_ALL=C DEBIAN_FRONTEND=noninteractive apt-get -t stretch-backports install -y --no-install-recommends \
       ldap-utils \
       libsasl2-modules \
       libsasl2-modules-db \
       libsasl2-modules-gssapi-mit \
       libsasl2-modules-ldap \
       libsasl2-modules-otp \
       libsasl2-modules-sql \
       openssl \
       slapd \
       krb5-kdc-ldap \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*

# Add service directory to /container/service
ADD service /container/service

# Use baseimage install-service script
# https://github.com/osixia/docker-light-baseimage/blob/stable/image/tool/install-service
RUN /container/tool/install-service

# Add default env variables
ADD environment /container/environment/99-default

# Expose default ldap and ldaps ports
EXPOSE 389 636

# Put ldap config and database dir in a volume to persist data.
# VOLUME /etc/ldap/slapd.d /var/lib/ldap