104 lines
2.8 KiB
Docker
104 lines
2.8 KiB
Docker
# Build and runtime stages for OpenDKIM on Ubuntu 16.04
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FROM ubuntu:16.04 AS builder
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ARG DEBIAN_FRONTEND=noninteractive
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ARG OPENDKIM_VERSION=2.10.3
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ARG OPENDKIM_TARBALL=opendkim-${OPENDKIM_VERSION}.tar.gz
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ARG OPENDKIM_URL=https://downloads.sourceforge.net/project/opendkim/${OPENDKIM_TARBALL}
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RUN apt-get update && apt-get install -y --no-install-recommends \
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build-essential \
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ca-certificates \
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wget \
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tar \
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gzip \
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make \
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autoconf \
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automake \
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libtool \
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pkg-config \
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libssl-dev \
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libmilter-dev \
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libbsd-dev \
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zlib1g-dev \
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&& rm -rf /var/lib/apt/lists/*
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WORKDIR /build
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RUN wget -O ${OPENDKIM_TARBALL} ${OPENDKIM_URL} \
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&& tar xzf ${OPENDKIM_TARBALL}
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WORKDIR /build/opendkim-${OPENDKIM_VERSION}
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# Basic build:
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# - prefix /usr
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# - config in /etc/opendkim
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# - pid file under /run/opendkim
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RUN ./configure \
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--prefix=/usr \
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--sysconfdir=/etc \
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--localstatedir=/var \
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--disable-shared \
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--enable-static
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RUN make -j"$(nproc)"
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# Install into staging root
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RUN make DESTDIR=/opt/opendkim-dist install
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# Collect runtime libs actually needed by installed binaries
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RUN mkdir -p /opt/opendkim-libs \
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&& find /opt/opendkim-dist -type f -executable -exec ldd {} \; \
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| awk '/=> \// {print $3} /^\// {print $1}' \
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| sort -u \
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| xargs -r -I '{}' cp -v --parents '{}' /opt/opendkim-libs
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# Pack staged install and copied libs as tarballs to avoid BuildKit COPY-to-/ issues
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RUN cd /opt/opendkim-dist \
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&& tar -cf /opt/opendkim-dist.tar .
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RUN cd /opt/opendkim-libs \
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&& tar -cf /opt/opendkim-libs.tar .
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# Final runtime image
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FROM ubuntu:16.04
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ARG DEBIAN_FRONTEND=noninteractive
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RUN apt-get update && apt-get install -y --no-install-recommends \
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ca-certificates \
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ssl-cert \
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inetutils-syslogd \
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&& rm -rf /var/lib/apt/lists/*
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COPY --from=builder /opt/opendkim-dist.tar /tmp/opendkim-dist.tar
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COPY --from=builder /opt/opendkim-libs.tar /tmp/opendkim-libs.tar
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RUN tar -C / -xf /tmp/opendkim-dist.tar \
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&& tar -C / -xf /tmp/opendkim-libs.tar \
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&& rm -f /tmp/opendkim-dist.tar /tmp/opendkim-libs.tar
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RUN groupadd -f opendkim \
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&& (id -u opendkim >/dev/null 2>&1 || useradd -r -g opendkim -d /var/lib/opendkim -s /usr/sbin/nologin opendkim)
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RUN mkdir -p \
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/etc/opendkim \
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/etc/opendkim/keys \
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/run/opendkim \
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/var/lib/opendkim \
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&& chown -R opendkim:opendkim /etc/opendkim/keys /run/opendkim /var/lib/opendkim
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RUN touch /etc/opendkim/KeyTable /etc/opendkim/SigningTable /etc/opendkim/TrustedHosts \
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&& chown opendkim:opendkim /etc/opendkim/KeyTable /etc/opendkim/SigningTable /etc/opendkim/TrustedHosts
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RUN touch /etc/rsyslog.d/stdout.conf && \
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echo "*.* /dev/stdout" > /etc/rsyslog.d/stdout.conf
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COPY entrypoint.sh /usr/local/bin/entrypoint.sh
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RUN chmod +x /usr/local/bin/entrypoint.sh
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EXPOSE 8891
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ENTRYPOINT ["/usr/local/bin/entrypoint.sh"]
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