chore: reduce the weight of the Docker image

tchapi · Mar 18, 2024 · 8e91faa · 8e91faa
1 parent a66a2a4
commit 8e91faa
Showing 1 changed file with 81 additions and 70 deletions.
diff --git a/docker/Dockerfile b/docker/Dockerfile
@@ -1,89 +1,100 @@
-FROM php:8.2-fpm-alpine
-
-# https://github.com/docker-library/php/blob/master/8.2/alpine3.18/fpm/Dockerfile#L33
-ARG fpm_user=82:82
-ENV FPM_USER=${fpm_user}
-
-LABEL org.opencontainers.image.authors="[email protected]"
-LABEL org.opencontainers.image.url="https://github.com/tchapi/davis/pkgs/container/davis"
-LABEL org.opencontainers.image.description="A simple, fully translatable admin interface for sabre/dav based on Symfony 5 and Bootstrap 4"
-
+###############################################################
 # Run update, and gets basic packages and packages for runtime
+FROM php:8.2-fpm-alpine AS base-image
+
 RUN apk --no-progress --update add --no-cache \
-        curl unzip fcgi \
-        # These are for php-intl
-        icu-libs \
-        # This one is for IMAP (to provide libc-client.so)
-        c-client \
-        # This one for LDAP
-        libldap \
-        # These are for GD (map image in mail)
-        freetype \
-        libjpeg-turbo \
-        libpng \
-        # This is for PostgreSQL
-        libpq
+    curl unzip \
+    # These are for php-intl
+    icu-libs \
+    # This one is for IMAP (to provide libc-client.so)
+    c-client \
+    # This one for LDAP
+    libldap \
+    # These are for GD (map image in mail)
+    freetype \
+    libjpeg-turbo \
+    libpng \
+    # This is for PostgreSQL
+    libpq \
+    # For the webserver and process manager
+    caddy supervisor
+
+
+###########################################################################
+# Build all extension on a diferent build environment so keep things clean
+FROM base-image AS extension-builder
+
+RUN apk --update --no-cache add\
+    # Intl support
+    --virtual build-deps-intl \
+    icu-dev \
+    # PDO: PostgreSQL
+    --virtual build-deps-pg \
+    libpq-dev \
+    # # PDO: PostgreSQL
+    --virtual build-deps-pg libpq-dev \
+    # GD (map image in mail)
+    --virtual build-deps-gd \
+    freetype-dev \
+    libjpeg-turbo-dev \
+    libpng-dev \
+    # LDAP auth support
+    --virtual build-deps-ldap \
+    openldap-dev \
+    # IMAP auth support
+    --virtual build-deps-imap \
+    imap-dev \
+    openssl-dev \
+    krb5-dev
+
+# Leaving a Docker layer per extension so in case it fails I have it cached to develop faster. 
 
 # Intl support
-RUN apk --update --virtual build-deps-intl add --no-cache icu-dev \
-    && docker-php-ext-install intl \
-    && apk del build-deps-intl \
-    && rm -rf /tmp/*
-
+RUN docker-php-ext-install intl
 # PDO: MySQL
-RUN docker-php-ext-configure pdo_mysql --with-pdo-mysql=mysqlnd \
-    && docker-php-ext-install pdo_mysql
-
+RUN docker-php-ext-configure pdo_mysql --with-pdo-mysql=mysqlnd && \
+    docker-php-ext-install pdo_mysql
 # PDO: PostgreSQL
-RUN apk --update --virtual build-deps-pg add --no-cache libpq-dev \
-    && docker-php-ext-configure pgsql -with-pgsql=/usr/local/pgsql \
-    && docker-php-ext-install pgsql pdo_pgsql \
-    && apk del build-deps-pg \
-    && rm -rf /tmp/*
-
+RUN docker-php-ext-configure pgsql --with-pgsql=/usr/local/pgsql && \
+    docker-php-ext-install pgsql pdo_pgsql
 # GD (map image in mail)
-RUN apk --update --virtual build-deps-gd add --no-cache freetype-dev libjpeg-turbo-dev libpng-dev \
-    && docker-php-ext-configure gd --with-freetype \
-    && docker-php-ext-install gd \
-    && docker-php-ext-enable gd \
-    && apk del build-deps-gd \
-    && rm -rf /tmp/*
-
+RUN docker-php-ext-configure gd --with-freetype && \
+    docker-php-ext-install gd && \
+    docker-php-ext-enable gd
 # LDAP auth support
-RUN apk --update --virtual build-deps-ldap add --no-cache openldap-dev \
-    && docker-php-ext-configure ldap \
-    && docker-php-ext-install ldap \
-    && apk del build-deps-ldap \
-    && rm -rf /tmp/*
-
+RUN docker-php-ext-configure ldap && \
+    docker-php-ext-install ldap
 # IMAP auth support
-RUN apk --update --virtual build-deps-imap add --no-cache imap-dev openssl-dev krb5-dev \
-    && docker-php-ext-configure imap --with-kerberos --with-imap-ssl \
-    && docker-php-ext-install imap \
-    && apk del build-deps-imap \
-    && rm -rf /tmp/*
+RUN docker-php-ext-configure imap --with-kerberos --with-imap-ssl && \
+    docker-php-ext-install imap
 
-# Davis installation
-ADD . /var/www/davis
-WORKDIR /var/www/davis
+
+###################################################
+# Installing composer and downloading dependencies
+FROM extension-builder AS composer
 
 # Install Composer 2, then dependencies
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer
+ADD --chown=www-data:www-data . /var/www/davis/
+WORKDIR /var/www/davis
 RUN APP_ENV=prod COMPOSER_ALLOW_SUPERUSER=1 composer install --no-ansi --no-dev --no-interaction --no-progress --optimize-autoloader
 
-# PHP-FPM healthcheck
-RUN set -xe && echo "pm.status_path = /status" >> /usr/local/etc/php-fpm.d/zz-docker.conf
-RUN curl https://raw.githubusercontent.com/renatomefi/php-fpm-healthcheck/v0.5.0/php-fpm-healthcheck \
-    -o /usr/local/bin/php-fpm-healthcheck -s \
-    && chmod +x /usr/local/bin/php-fpm-healthcheck
 
-# Cleanup (only useful when using --squash)
-RUN docker-php-source delete
-RUN rm -rf /usr/local/bin/composer
+###################################################
+# Final image
+FROM base-image
 
-# Sets the app folder owner as the FPM user
-RUN chown -R ${FPM_USER} .
+# https://github.com/docker-library/php/blob/master/8.2/alpine3.18/fpm/Dockerfile#L33
+ARG fpm_user=82:82
+ENV FPM_USER=${fpm_user}
 
-USER $FPM_USER
+LABEL org.opencontainers.image.authors="[email protected]"
+LABEL org.opencontainers.image.url="https://github.com/tchapi/davis/pkgs/container/davis-standalone"
+LABEL org.opencontainers.image.description="A simple, fully translatable admin interface for sabre/dav based on Symfony 5 and Bootstrap 4 (Standalone version with reverse-proxy)"
 
-HEALTHCHECK --interval=30s --timeout=1s CMD php-fpm-healthcheck || exit 1
+COPY --from=extension-builder /usr/local/etc/php/conf.d     /usr/local/etc/php/conf.d/
+COPY --from=extension-builder /usr/local/lib/php/extensions /usr/local/lib/php/extensions/
+COPY --from=composer          /var/www/davis/vendor         /var/www/davis/vendor/
+
+ADD --chown=$FPM_USER bin migrations public src /var/www/davis/
+USER $FPM_USER