Reducing Docker alpine container size

Dockerfile.cleanup

        find /usr/local \
                \( -type d -a -name test -o -name tests \) \
                -o \( -type f -a -name '*.pyc' -o -name '*.pyo' \) \
                -exec rm -rf '{}' + \
        && runDeps="$( \
                scanelf --needed --nobanner --recursive /usr/local \
                        | awk '{ gsub(/,/, "\nso:", $2); print "so:" $2 }' \
                        | sort -u \
                        | xargs -r apk info --installed \
                        | sort -u \
        )" \
        && apk add --virtual .rundeps $runDeps \
        && apk del .build-deps
        && apk del build-base && rm -rf /var/cache/apk/*