fix(): missing php extensions

Dockerfile

@@ -6,19 +6,21 @@ ENV GID=991 UID=991
 
 RUN echo "@testing https://nl.alpinelinux.org/alpine/edge/testing" >> /etc/apk/repositories \
     && export BUILD_DEPS="git" \
-    && apk --no-cache add nginx \
-            curl \
-            php7-phar@testing \
-            supervisor \
-            php7-fpm@testing \
-            php7-curl@testing \
-            php7-mbstring@testing \
-            php7-openssl@testing \
-            php7-json@testing \
-            php7-pdo_mysql@testing \
-            php7-gd@testing \
-            php7-dom@testing \
-            ${BUILD_DEPS} \
+    && apk --no-cache add ${BUILD_DEPS} \
+      nginx \
+      curl \
+      supervisor \
+      php7-phar@testing \
+      php7-fpm@testing \
+      php7-curl@testing \
+      php7-mbstring@testing \
+      php7-openssl@testing \
+      php7-json@testing \
+      php7-pdo_mysql@testing \
+      php7-gd@testing \
+      php7-dom@testing \
+      php7-ctype@testing \
+      php7-session@testing \
     && cd /tmp \
     && ln -s /usr/bin/php7 /usr/bin/php \
     && curl -s http://getcomposer.org/installer | php \
@@ -32,11 +34,8 @@ RUN echo "@testing https://nl.alpinelinux.org/alpine/edge/testing" >> /etc/apk/r
     && rm -rf /flarum/.composer/cache/*
 
 COPY nginx.conf /etc/nginx/nginx.conf
-COPY php.ini /etc/php7/php.ini
 COPY php-fpm.conf /etc/php7/php-fpm.conf
 COPY supervisord.conf /etc/supervisor/supervisord.conf
-COPY startup /usr/local/bin/startup
-RUN chmod +x /usr/local/bin/startup
 
 EXPOSE 8080
-CMD ["/usr/bin/tini","--","startup"]
+CMD ["/usr/bin/tini","--","supervisord","-c","/etc/supervisor/supervisord.conf"]

nginx.conf

@@ -55,17 +55,16 @@ http {
     error_log  /var/log/nginx/error.log error;
     charset utf-8;
 
-
-    location / { 
-        try_files $uri $uri/ /index.php?$query_string; 
+    location / {
+        try_files $uri $uri/ /index.php?$query_string;
     }
 
-    location /api { 
-        try_files $uri $uri/ /api.php?$query_string; 
+    location /api {
+        try_files $uri $uri/ /api.php?$query_string;
     }
 
-    location /admin { 
-        try_files $uri $uri/ /admin.php?$query_string; 
+    location /admin {
+        try_files $uri $uri/ /admin.php?$query_string;
     }
 
     location /flarum {

startup

@@ -1,10 +0,0 @@
-#!/bin/sh
-
-# Create user and group
-# addgroup -g ${GID} flarum && adduser -h /flarum -s /bin/sh -D -G flarum -u ${UID} flarum
-
-# Set permissions
-chown -R flarum:flarum /flarum /var/lib/nginx /tmp
-
-# RUN !
-supervisord -c /etc/supervisor/supervisord.conf