fix

base-images/nginx-php-fpm-main/Dockerfile

@@ -206,6 +206,7 @@ RUN echo @testing http://nl.alpinelinux.org/alpine/edge/testing >> /etc/apk/repo
     imap-dev \
     libjpeg-turbo-dev \
     postgresql-dev && \
+    librdkafka-dev \
     docker-php-ext-install gd && \
     docker-php-ext-configure gd \
       --with-freetype \