Dockerfile

FROM nextcloud:30.0.5-fpm@sha256:4c898a6e3a17fcd3bcbe9d2450079a95581cfb9f0dbfca246c39bd60c77d123b

RUN set -ex; \
    \
    apt-get update; \
    apt-get install -y --no-install-recommends \
        ffmpeg \
        ghostscript \
        libmagickcore-6.q16-6-extra \
        procps \
        smbclient \
    ; \
    rm -rf /var/lib/apt/lists/*

RUN set -ex; \
    \
    savedAptMark="$(apt-mark showmanual)"; \
    \
    apt-get update; \
    apt-get install -y --no-install-recommends \
        libbz2-dev \
        libc-client-dev \
        libkrb5-dev \
        libsmbclient-dev \
    ; \
    \
    docker-php-ext-configure imap --with-kerberos --with-imap-ssl; \
    docker-php-ext-install \
        bz2 \
        imap \
    ; \
    pecl install smbclient; \
    docker-php-ext-enable smbclient; \
    \
# reset apt-mark's "manual" list so that "purge --auto-remove" will remove all build dependencies
    apt-mark auto '.*' > /dev/null; \
    apt-mark manual $savedAptMark; \
    ldd "$(php -r 'echo ini_get("extension_dir");')"/*.so \
        | awk '/=>/ { so = $(NF-1); if (index(so, "/usr/local/") == 1) { next }; gsub("^/(usr/)?", "", so); print so }' \
        | sort -u \
        | xargs -r dpkg-query --search \
        | cut -d: -f1 \
        | sort -u \
        | xargs -rt apt-mark manual; \
    \
    apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
    rm -rf /var/lib/apt/lists/*


ENV NEXTCLOUD_UPDATE=1

ENTRYPOINT ["/entrypoint.sh"]
CMD ["php-fpm"]