Build custom image error

[ddiawara]

docker build -t d3n/openldap:0.1.0 --rm image
[+] Building 22.1s (9/12)                                                                                                docker:default
 => [internal] load build definition from Dockerfile                                                                               0.0s
 => => transferring dockerfile: 2.84kB                                                                                             0.0s
 => [internal] load .dockerignore                                                                                                  0.0s
 => => transferring context: 2B                                                                                                    0.0s
 => [internal] load metadata for docker.io/osixia/light-baseimage:1.3.2                                                            1.6s
 => [auth] osixia/light-baseimage:pull token for registry-1.docker.io                                                              0.0s
 => [1/7] FROM docker.io/osixia/light-baseimage:1.3.2@sha256:29ab0ec6f8788bd16e9fe1f8130de205f5464c98501c5dc953254c1ad6c97fa4      0.0s
 => => resolve docker.io/osixia/light-baseimage:1.3.2@sha256:29ab0ec6f8788bd16e9fe1f8130de205f5464c98501c5dc953254c1ad6c97fa4      0.0s
 => [internal] load build context                                                                                                  0.0s
 => => transferring context: 3.40kB                                                                                                0.0s
 => CACHED [2/7] RUN if [ -z "${LDAP_OPENLDAP_GID}" ]; then groupadd -g 911 -r openldap; else groupadd -r -g ${LDAP_OPENLDAP_GID}  0.0s
 => CACHED [3/7] RUN echo "deb http://ftp.debian.org/debian buster-backports main" >> /etc/apt/sources.list                        0.0s
 => ERROR [4/7] RUN echo "path-include /usr/share/doc/krb5*" >> /etc/dpkg/dpkg.cfg.d/docker && apt-get -y update     && /contain  20.4s
------
 > [4/7] 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 buster-backports install -y --no-install-recommends     ca-certificates     curl     ldap-utils=2.4.57*     libsasl2-modules     libsasl2-modules-db     libsasl2-modules-gssapi-mit     libsasl2-modules-ldap     libsasl2-modules-otp     libsasl2-modules-sql     openssl     slapd=2.4.57*     slapd-contrib=2.4.57*     krb5-kdc-ldap     && curl -o pqchecker.deb -SL http://www.meddeb.net/pub/pqchecker/deb/8/pqchecker_2.0.0_amd64.deb     && echo "c005ce596e97d13e39485e711dcbc7e1 *pqchecker.deb" | md5sum -c -     && dpkg -i pqchecker.deb     && rm pqchecker.deb     && update-ca-certificates     && apt-get remove -y --purge --auto-remove curl ca-certificates     && apt-get clean     && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*:
0.786 Get:1 http://security.debian.org/debian-security buster/updates InRelease [34.8 kB]
0.829 Get:2 http://deb.debian.org/debian buster InRelease [122 kB]
1.121 Get:3 http://ftp.debian.org/debian buster-backports InRelease [51.4 kB]
1.352 Get:4 http://deb.debian.org/debian buster-updates InRelease [56.6 kB]
2.665 Get:5 http://security.debian.org/debian-security buster/updates/main amd64 Packages [545 kB]
3.903 Err:3 http://ftp.debian.org/debian buster-backports InRelease
3.903   The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 0E98404D386FA1D9 NO_PUBKEY 6ED0E7B82643E131
5.251 Get:6 http://deb.debian.org/debian buster/main amd64 Packages [7,909 kB]
12.60 Get:7 http://deb.debian.org/debian buster-updates/main amd64 Packages [8,788 B]
16.06 Reading package lists...
20.27 W: GPG error: http://ftp.debian.org/debian buster-backports InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 0E98404D386FA1D9 NO_PUBKEY 6ED0E7B82643E131
20.27 E: The repository 'http://ftp.debian.org/debian buster-backports InRelease' is not signed.
------
Dockerfile:24
--------------------
  23 |     #          https://github.com/osixia/docker-light-baseimage/blob/master/image/service-available/:ssl-tools/download.sh
  24 | >>> RUN echo "path-include /usr/share/doc/krb5*" >> /etc/dpkg/dpkg.cfg.d/docker && apt-get -y update \
  25 | >>>     && /container/tool/add-service-available :ssl-tools \
  26 | >>>     && LC_ALL=C DEBIAN_FRONTEND=noninteractive apt-get -t buster-backports install -y --no-install-recommends \
  27 | >>>     ca-certificates \
  28 | >>>     curl \
  29 | >>>     ldap-utils=${OPENLDAP_PACKAGE_VERSION}\* \
  30 | >>>     libsasl2-modules \
  31 | >>>     libsasl2-modules-db \
  32 | >>>     libsasl2-modules-gssapi-mit \
  33 | >>>     libsasl2-modules-ldap \
  34 | >>>     libsasl2-modules-otp \
  35 | >>>     libsasl2-modules-sql \
  36 | >>>     openssl \
  37 | >>>     slapd=${OPENLDAP_PACKAGE_VERSION}\* \
  38 | >>>     slapd-contrib=${OPENLDAP_PACKAGE_VERSION}\* \
  39 | >>>     krb5-kdc-ldap \
  40 | >>>     && curl -o pqchecker.deb -SL http://www.meddeb.net/pub/pqchecker/deb/8/pqchecker_${PQCHECKER_VERSION}_amd64.deb \
  41 | >>>     && echo "${PQCHECKER_MD5} *pqchecker.deb" | md5sum -c - \
  42 | >>>     && dpkg -i pqchecker.deb \
  43 | >>>     && rm pqchecker.deb \

[nix-power]

I am not sure this project is active, otherwise i would suggest a pull request. debian-buster is no longer in ftp.debian.org, but in the debian archive, this is why you can not build. For my internal purposes i have created base image that is based on debian12-slim, and i don`t need backports there. But if you are building on osixia/light-baseimage:1.3.3 then replace the buster-backports with the following

RUN echo "deb https://archive.debian.org/debian buster-backports main" >> /etc/apt/sources.list
RUN apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 0E98404D386FA1D9 && apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 6ED0E7B82643E131