use alpine

Dockerfile

-FROM debian:stretch
+FROM alpine:3.5
 
 ENV RESTYABOARD_VERSION=v0.4.2 \
     ROOT_DIR=/usr/share/nginx/html \
-    CONF_FILE=/etc/nginx/conf.d/restyaboard.conf \
+    CONF_DIR=/etc/nginx/conf.d \
     SMTP_DOMAIN=localhost \
     SMTP_USERNAME=root \
     SMTP_PASSWORD=root \
     SMTP_SERVER=localhost \
     SMTP_PORT=465
 
-# update & install package
-RUN apt-get update && \
-    echo "postfix postfix/mailname string localhost" | debconf-set-selections && \
-    echo "postfix postfix/main_mailer_type string 'Internet Site'" | debconf-set-selections && \
-    TERM=linux DEBIAN_FRONTEND=noninteractive apt-get install -y \
-    cron \
+# install packages
+RUN apk add --update \
     curl \
+    file \
     imagemagick \
     jq \
-    libpq5 \
     nginx \
-    php7.0 \
-    php7.0-cli \
-    php7.0-common \
-    php7.0-curl \
-    php7.0-fpm \
-    php7.0-imagick \
-    php7.0-imap \
-    php7.0-ldap \
-    php7.0-mbstring \
-    php7.0-pgsql \
-    php7.0-xml \
+    php7 \
     postfix \
     postgresql-client \
-    unzip
+    unzip && \
+    rm -rf /var/cache/apk/*
 
-# deploy app
+# deploy app and extensions
 RUN curl -L -s -o /tmp/restyaboard.zip https://github.com/RestyaPlatform/board/releases/download/${RESTYABOARD_VERSION}/board-${RESTYABOARD_VERSION}.zip && \
+    mkdir -p  ${ROOT_DIR} && \
     unzip /tmp/restyaboard.zip -d ${ROOT_DIR} && \
-    rm /tmp/restyaboard.zip
-
-# extensions
-RUN curl -L -s -o /tmp/apps.json https://raw.githubusercontent.com/RestyaPlatform/board-apps/master/apps.json && \
+    rm /tmp/restyaboard.zip && \
+    curl -L -s -o /tmp/apps.json https://raw.githubusercontent.com/RestyaPlatform/board-apps/master/apps.json && \
     chmod -R go+w /tmp/apps.json && \
     mkdir -p "${ROOT_DIR}/client/apps" && \
-	for fid in $(jq -r '.[] | .id + "-v" + .version' /tmp/apps.json); \
-	do \
-	    curl -L -s -G -o /tmp/$fid.zip https://github.com/RestyaPlatform/board-apps/releases/download/v1/$fid.zip; \
+    for fid in $(jq -r '.[] | .id + "-v" + .version' /tmp/apps.json); \
+    do \
+        curl -L -s -G -o /tmp/$fid.zip https://github.com/RestyaPlatform/board-apps/releases/download/v1/$fid.zip; \
         file /tmp/$fid.zip | grep Zip && unzip /tmp/$fid.zip -d "${ROOT_DIR}/client/apps"; \
         rm /tmp/$fid.zip; \
-	done && \
+    done && \
     rm /tmp/apps.json
 
-# setting app
-WORKDIR ${ROOT_DIR}
-RUN rm /etc/nginx/sites-enabled/default && \
-    cp restyaboard.conf ${CONF_FILE} && \
-    sed -i "s/server_name.*$/server_name \"localhost\";/" ${CONF_FILE} && \
-	sed -i "s|listen 80.*$|listen 80;|" ${CONF_FILE} && \
-    sed -i "s|root.*html|root ${ROOT_DIR}|" ${CONF_FILE} && \
-    chown -R www-data:www-data . && \
-    chmod -R 777 media && \
-    chmod -R 777 client/img && \
-    chmod -R 777 tmp
-
-# cleanup
-RUN apt-get autoremove -y --purge && \
-    apt-get clean
+# configure app
+RUN addgroup -g 82 -S www-data ; \
+    adduser -u 82 -D -S -G www-data www-data && \
+    mkdir -p ${CONF_DIR} && \
+    cp ${ROOT_DIR}/restyaboard.conf ${CONF_DIR} && \
+    sed -i "s/server_name.*$/server_name \"localhost\";/" ${CONF_DIR}/restyaboard.conf && \
+    sed -i "s|listen 80.*$|listen 80;|" ${CONF_DIR}/restyaboard.conf && \
+    sed -i "s|root.*html|root ${ROOT_DIR}|" ${CONF_DIR}/restyaboard.conf && \
+    chown -R www-data:www-data ${ROOT_DIR} && \
+    chmod -R 777 ${ROOT_DIR}/media && \
+    chmod -R 777 ${ROOT_DIR}/client/img && \
+    chmod -R 777 ${ROOT_DIR}/tmp
 
-# entry point
+# entrypoint
 COPY docker-entrypoint.sh /
 RUN chmod +x /docker-entrypoint.sh
+WORKDIR ${ROOT_DIR}
 ENTRYPOINT ["/docker-entrypoint.sh"]
 CMD ["start"]

docker-compose.yml

@@ -20,12 +20,10 @@ services:
       - SMTP_PORT=465
     depends_on:
       - postgres
-    networks:
-      - restya-net
     restart: always
 
   postgres:
-    image: postgres:9.6
+    image: kiasaki/alpine-postgres:9.6
     ports:
       - 5432:5432
     environment:
@@ -33,9 +31,4 @@ services:
       - POSTGRES_USER=admin
       - POSTGRES_PASSWORD=admin
       - POSTGRES_DB=restyaboard
-    networks:
-      - restya-net
     restart: always
-
-networks:
-  restya-net: