Fixes #2131

(cherry picked from commit d494dd7d2a)

# Conflicts:
#	webmails/rainloop/Dockerfile

webmails/rainloop/Dockerfile

@@ -0,0 +1,77 @@
+ARG ARCH=""
+
+# NOTE: only add file if building for arm
+FROM ${ARCH}alpine:3.14
+ARG VERSION
+ONBUILD COPY --from=balenalib/rpi-alpine:3.14 /usr/bin/qemu-arm-static /usr/bin/qemu-arm-static
+
+ENV TZ Etc/UTC
+
+LABEL version=$VERSION
+
+# Shared later between dovecot postfix nginx rspamd rainloop and roundloop
+RUN apk add --no-cache \
+    python3 py3-pip tzdata \
+ && pip3 install socrate==0.2.0
+
+#  https://www.rainloop.net/docs/system-requirements/
+#  Rainloop:
+#     cURL            Builtin
+#     iconv           php7-iconv
+#     json            php7-json
+#     libxml          php7-xml
+#     dom             php7-dom
+#     openssl         php7-openssl
+#     DateTime        Builtin
+#     PCRE            Builtin
+#     SPL             Builtin
+#  Recommended:
+#     php7-fpm        FastCGI Process Manager
+#  Optional PHP extension (for contacts):
+#     php7-pdo        Accessing databases in PHP
+#     php7-pdo_sqlite Access to SQLite 3 databases
+RUN apk add --no-cache \
+    nginx \
+    php7 php7-fpm php7-curl php7-iconv php7-json php7-xml php7-simplexml php7-dom php7-openssl php7-pdo php7-pdo_sqlite \
+ && rm /etc/nginx/http.d/default.conf \
+ && rm /etc/php7/php-fpm.d/www.conf \
+ && mkdir -p /run/nginx \
+ && mkdir -p /var/www/rainloop
+
+# nginx / PHP config files
+COPY config/nginx-rainloop.conf /etc/nginx/http.d/rainloop.conf
+COPY config/php-rainloop.conf /etc/php7/php-fpm.d/rainloop.conf
+
+# Rainloop login
+COPY login/include.php /var/www/rainloop/include.php
+COPY login/sso.php /var/www/rainloop/sso.php
+
+# Parsed en moved at startup
+COPY defaults/php.ini /defaults/php.ini
+COPY defaults/application.ini /defaults/application.ini
+COPY defaults/default.ini /defaults/default.ini
+
+# Install Rainloop from source
+ENV RAINLOOP_URL https://github.com/RainLoop/rainloop-webmail/releases/download/v1.16.0/rainloop-community-1.16.0.zip
+
+RUN apk add --no-cache \
+      curl unzip \
+ && cd /var/www/rainloop \
+ && curl -L -O ${RAINLOOP_URL} \
+ && unzip -q *.zip \
+ && rm -f *.zip \
+ && rm -rf data/ \
+ && find . -type d -exec chmod 755 {} \; \
+ && find . -type f -exec chmod 644 {} \; \
+ && chown -R nginx:nginx /var/www/rainloop \
+ && apk del unzip
+
+COPY start.py /start.py
+
+EXPOSE 80/tcp
+VOLUME ["/data"]
+
+CMD php-fpm7 && /start.py
+
+HEALTHCHECK CMD curl -f -L http://localhost/ || exit 1
+RUN echo $VERSION >> /version