Moving to PHP 7.2; also added https://github.com/evnsio/grav 's startup script

Dockerfile

@@ -4,8 +4,17 @@ FROM nginx:stable
 ARG GRAV_VERSION=1.5.8
 
 # Install dependencies
-RUN apt-get update && \
-    apt-get install -y sudo wget vim unzip php5 php5-curl php5-gd php-pclzip php5-fpm
+RUN add-apt-repository ppa:ondrej/php && \ # For PHP 7.2
+    apt-get update && \
+    apt-get install -y sudo wget unzip php-pclzip && \
+    # Install PHP 7.2 and Required Modules for Grav
+    apt-get install -y \
+    php7.2 \
+    php7.2-curl \
+    php7.2-gd # \
+    # php7.2-json \
+    # php7.2-mbstring \
+
 ADD https://github.com/krallin/tini/releases/download/v0.13.2/tini /usr/local/bin/tini
 RUN chmod +x /usr/local/bin/tini
 

resources/usr/local/bin/startup.sh

@@ -0,0 +1,47 @@
+#!/bin/bash
+
+set -e
+
+function configure_admin() {
+    export GRAV_HOME=/var/www/grav-admin
+
+    # Setup admin user (if supplied)
+    if [ -z $ADMIN_USER ]; then
+        echo "[ INFO ] No Grav admin user details supplied"
+    else
+        if [ -e $GRAV_HOME/user/accounts/$ADMIN_USER.yaml ]; then
+            echo "[ INFO ] Grav admin user already exists"
+        else
+            echo "[ INFO ] Setting up Grav admin user"
+            cd $GRAV_HOME
+
+            sudo -u www-data bin/plugin login newuser \
+                 --user=${ADMIN_USER} \
+                 --password=${ADMIN_PASSWORD-"Pa55word"} \
+                 --permissions=${ADMIN_PERMISSIONS-"b"} \
+                 --email=${ADMIN_EMAIL-"admin@domain.com"} \
+                 --fullname=${ADMIN_FULLNAME-"Administrator"} \
+                 --title=${ADMIN_TITLE-"SiteAdministrator"}
+        fi
+    fi
+}
+
+function configure_nginx() {
+    echo "[ INFO ] Configuring Nginx"
+
+    echo "[ INFO ]  > Updating to listen on port 80"
+    sed -i 's/#listen 80;/listen 80;/g' /etc/nginx/conf.d/default.conf
+}
+
+function start_services() {
+    echo "[ INFO ] Starting nginx"
+    bash -c 'php5-fpm -D; nginx -g "daemon off;"'
+}
+
+function main() {
+    configure_admin
+    configure_nginx
+    start_services
+}
+
+main "$@"