FROM alpine:3.19 AS builder
RUN apk add autoconf automake db-dev g++ gcc gzip heimdal-dev libtool make openldap-dev openssl-dev tar cyrus-sasl libldap
RUN wget -O /tmp/cyrus-sasl.tar.gz https://github.com/cyrusimap/cyrus-sasl/releases/download/cyrus-sasl-2.1.28/cyrus-sasl-2.1.28.tar.gz
RUN mkdir -p /tmp/cyrus-sasl &&\
    tar -xzf /tmp/cyrus-sasl.tar.gz --strip=1 -C /tmp/cyrus-sasl &&\
    rm -f /tmp/cyrus-sasl.tar.gz
RUN cd /tmp/cyrus-sasl &&\
    ./configure \
    --prefix=/opt/cyrus-sasl \
    --disable-anon \
    --enable-cram \
    --enable-digest \
    --enable-ldapdb \
    --enable-login \
    --enable-ntlm \
    --disable-otp \
    --enable-plain \
    --with-gss_impl=heimdal \
    --with-devrandom=/dev/urandom \
    --with-ldap=/usr &&\
    make install

FROM alpine:edge
COPY --from=builder /opt/cyrus-sasl /opt/cyrus-sasl
COPY start /usr/local/bin/start
COPY saslauthd.conf /etc/saslauthd.conf
RUN apk update &&\
    apk add libldap heimdal-libs gdbm libsasl znc tini &&\
    chmod +x /usr/local/bin/start
VOLUME ["/var/lib/znc"]
ENTRYPOINT ["/sbin/tini","--","/usr/local/bin/start"]