Changelog, ssmtp, image optimisation, libcanlock.

Dockerfile

@@ -4,7 +4,9 @@ ENV PERL_MM_USE_DEFAULT=1
 RUN apk add --no-cache \
     bison \
     build-base \
+    bzip2 \
     curl \
+    flex \
     gawk \
     gd-dev \
     gnupg \
@@ -20,27 +22,29 @@ RUN apk add --no-cache \
     s6 \
     shadow \
     sqlite-dev \
+    ssmtp \
     tar \
     zlib-dev && \
     cpan -T GD MIME::Parser && \
     rm -rf /root/.cpan
 
-
-ARG VERSION=2.7.4
-RUN curl -sL https://github.com/InterNetNews/inn/releases/download/${VERSION}/inn-${VERSION}.tar.gz | tar xz
-
-WORKDIR /inn-${VERSION}
-RUN ./configure --prefix=/inn2 --with-zlib --with-openssl --with-sqlite --with-krb5 --with-perl --with-python && \
+# Build everything in one command and cleanup sources so container will eat less space.
+RUN mkdir /src && cd /src && \
+    # libcanlock
+    curl -sL https://micha.freeshell.org/libcanlock/src/libcanlock-3.3.3.tar.bz2 | tar xj && cd libcanlock-3.3.3 && ./configure && make && make install && \
+    # inn2
+    cd /src && curl -sL https://github.com/InterNetNews/inn/releases/download/2.7.4/inn-2.7.4.tar.gz | tar xz && cd inn-2.7.4 && \
+    ./configure --prefix=/inn2 --with-zlib --with-openssl --with-sqlite --with-krb5 --with-perl --with-python --with-canlock && \
     make && \
     sed -i 's/#domain:/domain: news.localhost/' site/inn.conf && \
-    make install
-
-RUN sed -i 's/#\(tlscapath:\)/\1/' /inn2/etc/inn.conf && \
+    make install && \
+    sed -i 's/#\(tlscapath:\)/\1/' /inn2/etc/inn.conf && \
     sed -i 's/#\(tlscertfile:\)/\1/' /inn2/etc/inn.conf && \
     sed -i 's/#\(tlskeyfile:\)/\1/' /inn2/etc/inn.conf && \
     mv /inn2/etc /inn2/etc-default && \
     mv /inn2/db /inn2/db-default && \
-    mv /inn2/spool /inn2/spool-default
+    mv /inn2/spool /inn2/spool-default && \
+    rm -rf /src
 
 COPY configuration /etc
 COPY start-innd.sh /start-innd
@@ -49,7 +53,6 @@ RUN groupmod -g 600 news && usermod -u 600 -g 600 -d /inn2 news && chown -R news
 
 WORKDIR /inn2
 ENV PATH=/inn2/bin:$PATH
-ENV PERL_MM_USE_DEFAULT=1
 USER news
 EXPOSE 119
 EXPOSE 563