feat(): improve startup script

Dockerfile

@@ -9,7 +9,15 @@ ENV GID=991 \
     UID=991 \
     UPLOAD_MAX_SIZE=50M \
     PHP_MEMORY_LIMIT=128M \
-    OPCACHE_MEMORY_LIMIT=128
+    OPCACHE_MEMORY_LIMIT=128 \
+    DB_HOST=mariadb \
+    DB_USER=flarum \
+    DB_NAME=flarum \
+    DB_PORT=3306 \
+    FLARUM_TITLE=Docker-Flarum \
+    DEBUG=false \
+    LOG_TO_STDOUT=false \
+    GITHUB_TOKEN_AUTH=false
 
 RUN apk add --no-progress --no-cache \
     nginx \
@@ -47,7 +55,7 @@ RUN apk add --no-progress --no-cache \
   && COMPOSER_CACHE_DIR="/tmp" su-exec $UID:$GID composer create-project --stability=beta --no-progress -- flarum/flarum /flarum/app $VERSION \
   && composer clear-cache \
   && rm -rf /flarum/.composer /tmp/* \
-  && apk del --purge curl
+  && apk del --purge curl git
 
 COPY rootfs /
 RUN chmod +x /usr/local/bin/* /services/*/run /services/.s6-svscan/*

rootfs/usr/local/bin/extension

@@ -19,8 +19,8 @@ action="${1}"
 package="${2}"
 
 # Create custom extensions cache folder and list file
-su-exec $UID:$GID mkdir -p "${CACHE_DIR}"
+su-exec "${UID}:${GID}" mkdir -p "${CACHE_DIR}"
-su-exec $UID:$GID touch "${LIST_FILE}"
+su-exec "${UID}:${GID}" touch "${LIST_FILE}"
 
 case "${action}" in
   # Install a flarum extension
@@ -54,6 +54,6 @@ case "${action}" in
     ;;
 esac
 
-su-exec $UID:$GID php /flarum/app/flarum cache:clear
+su-exec "${UID}:${GID}" php /flarum/app/flarum cache:clear
 
 exit 0

rootfs/usr/local/bin/startup

@@ -1,15 +1,5 @@
 #!/usr/bin/env sh
 
-# Default values
-DB_HOST="${DB_HOST:-mariadb}"
-DB_USER="${DB_USER:-flarum}"
-DB_NAME="${DB_NAME:-flarum}"
-DB_PORT="${DB_PORT:-3306}"
-FLARUM_TITLE="${FLARUM_TITLE:-Docker-Flarum}"
-DEBUG="${DEBUG:-false}"
-LOG_TO_STDOUT="${LOG_TO_STDOUT:-false}"
-GITHUB_TOKEN_AUTH="${GITHUB_TOKEN_AUTH:-false}"
-
 # Required env variables
 if [ -z "${DB_PASS}" ]; then
   echo "[ERROR] Mariadb database password must be set !"
@@ -27,7 +17,7 @@ sed -i "s/<PHP_MEMORY_LIMIT>/${PHP_MEMORY_LIMIT}/g" /etc/php7/php-fpm.conf
 sed -i "s/<OPCACHE_MEMORY_LIMIT>/${OPCACHE_MEMORY_LIMIT}/g" /etc/php7/conf.d/00_opcache.ini
 
 # Set permissions
-chown -R $UID:$GID /services /var/log /var/lib/nginx
+chown -R "${UID}:${GID}" /services /var/log /var/lib/nginx
 
 # Set log output to STDOUT if wanted (LOG_TO_STDOUT=true)
 if [ "${LOG_TO_STDOUT}" = true ]; then
@@ -48,8 +38,8 @@ fi
 # Custom repositories (eg. for privates extensions)
 if [ -f '/flarum/app/extensions/composer.repositories.txt' ]; then
   while read line; do
-    repository=$(echo $line | cut -d '|' -f1)
+    repository="$(echo ${line} | cut -d '|' -f1)"
-    json=$(echo $line | cut -d '|' -f2)
+    json="$(echo ${line} | cut -d '|' -f2)"
     echo "[INFO] Adding ${repository} composer repository"
     composer config repositories."${repository}" "${json}"
   done < /flarum/app/extensions/composer.repositories.txt
@@ -77,7 +67,7 @@ if [ -e '/flarum/app/public/assets/rev-manifest.json' ]; then
          -e "s|<FORUM_URL>|${FORUM_URL}|g" /flarum/app/config.php.sample
 
   cp /flarum/app/config.php.sample /flarum/app/config.php
-  su-exec $UID:$GID php /flarum/app/flarum cache:clear
+  su-exec "${UID}:${GID}" php /flarum/app/flarum cache:clear
 
   # Composer cache dir and packages list paths
   CACHE_DIR=/flarum/app/extensions/.cache
@@ -90,7 +80,7 @@ if [ -e '/flarum/app/public/assets/rev-manifest.json' ]; then
       extension="${extension}${line} "
     done < /flarum/app/extensions/list
     cmd="composer require ${extension}"
-    COMPOSER_CACHE_DIR="${CACHE_DIR}" eval $cmd
+    COMPOSER_CACHE_DIR="${CACHE_DIR}" eval "${cmd}"
     echo "[INFO] Install extra bundled extensions: DONE."
   else
     echo "[INFO] No installed extensions"
@@ -120,15 +110,15 @@ else
          -e "s|<FLARUM_TITLE>|${FLARUM_TITLE}|g" /flarum/app/config.yml
 
   # Install flarum
-  chown -R $UID:$GID /flarum
+  chown -R "${UID}:${GID}" /flarum
-  su-exec $UID:$GID php /flarum/app/flarum install --file=/flarum/app/config.yml
+  su-exec "${UID}:${GID}" php /flarum/app/flarum install --file=/flarum/app/config.yml
 
   echo "[INFO] End of flarum installation"
 fi
 
 # Set permissions for /flarum folder
-find /flarum ! -user $UID -print0 | xargs -0 -r chown $UID:$GID
+find /flarum ! -user "${UID}" -exec chown "${UID}:${GID}" {} \;
-find /flarum ! -group $GID -print0 | xargs -0 -r chown $UID:$GID
+find /flarum ! -group "${GID}" -exec chown "${UID}:${GID}" {} \;
 
 # RUN !
-exec su-exec $UID:$GID /bin/s6-svscan /services
+exec su-exec "${UID}:${GID}" /bin/s6-svscan /services