FROM ubuntu:bionic RUN echo slapd slapd/password1 password travis | debconf-set-selections RUN echo slapd slapd/password2 password travis | debconf-set-selections RUN echo slapd slapd/internal/adminpw password travis | debconf-set-selections RUN echo slapd slapd/internal/generated_adminpw password travis | debconf-set-selections RUN echo slapd slapd/domain string example.com | debconf-set-selections RUN apt-get update && apt-get -y install slapd ldap-utils # With -d passed, slapd stays in the foreground CMD /usr/sbin/slapd -d1 '-h ldap:// ldapi:///'