OpenDKIM Database support

[jchook]

DKIM optionally supports databases via opendbx.

Would be willing to contribute SQL support if it would be merged.

My current Dockerfile for DKIM

FROM alpine:3.14

ENV DKIM_SOCKET="inet:3000"

EXPOSE 3000

# Install dependencies
RUN apk add --no-cache \
    gettext \
    libmilter \
    mariadb-dev \
    s6-overlay \
  && apk add --no-cache --virtual .tool-deps \
    coreutils autoconf automake g++ libtool make \
     \
  && apk add --no-cache --virtual .build-deps \
    db-dev \
    libmilter-dev \
    openssl-dev \
    readline-dev

# Copy pre-downloaded packages
COPY packages /opt/packages/

# Compile and install opendbx
RUN cd /opt/packages \
  && tar xzf opendbx-1.4.6.tar.gz \
  && cp config.guess opendbx-1.4.6 \
  && cp config.sub opendbx-1.4.6 \
  && cd opendbx-1.4.6/ \
  && CPPFLAGS="-I/usr/include/mysql" ./configure --with-backends="mysql" \
  && make install

# Compile and install OpenDKIM
# The apk version doesn't have important flags we need
RUN cd /opt/packages \
  && tar xzf 2.11.0-Beta2.tar.gz \
  && cd OpenDKIM-2.11.0-Beta2 \
  && autoreconf -vif \
  && CPPFLAGS="-I/usr/include/openssl" ./configure \
    --sysconfdir=/etc/opendkim \
    --with-odbx \
    --with-openssl \
    --with-sql-backend \
    --docdir=/tmp/opendkim/doc \
    --htmldir=/tmp/opendkim/html \
    --infodir=/tmp/opendkim/info \
    --mandir=/tmp/opendkim/man \
  && make \
  && addgroup -S -g 91 opendkim \
  && adduser \
    -S -u 90 -D \
    -s /sbin/nologin \
    -H -h /run/opendkim \
    -G opendkim -g opendkim \
    opendkim \
  && addgroup opendkim mail \
  && make install \
  && install -d -o opendkim -g opendkim /run/opendkim/ \
  && install -d /etc/opendkim/conf.d/ \
  && install -d /usr/share/licenses/opendkim/ \
  && mv /tmp/opendkim/doc/LICENSE* /usr/share/licenses/opendkim/ \
    \
  && apk del .tool-deps .build-deps \
  && rm -rf /var/cache/apk/* /tmp/*

RUN mkdir -p /etc/opendkim/

# Copy files
COPY rootfs /

ENTRYPOINT ["/init"]

CMD ["opendkim", "-f"]

[tyranron]

@jchook yes, would like to see a PR. It will likely be merged.