tool: Use alpine based docker image to reduce image size

tool/Dockerfile.dev

@@ -1,4 +1,4 @@
-FROM nextcloud:27.0.0
+FROM nextcloud:27.0.0-fpm-alpine
 WORKDIR /usr/src/nextcloud
 RUN chown -R www-data:www-data .
 USER www-data
@@ -16,7 +16,7 @@ RUN ./occ app:install notes --force --allow-unstable # 4.8.0
 RUN ./occ app:install uppush --force --allow-unstable # 1.4.0
 
 RUN ./occ app:enable password_policy
-RUN (bash /entrypoint.sh php -S 0.0.0.0:8080 &) && \
+RUN (sh /entrypoint.sh php -S 0.0.0.0:8080 &) && \
     until curl -s -o /dev/null http://localhost:8080/status.php; do true; done && \
     for user in admin user1 user2; do curl -u "$user:$user" -H "ocs-apirequest: true" -s -o /dev/null http://localhost:8080/ocs/v2.php/cloud/user; done
 COPY --chown=www-data:www-data overlay /usr/src/nextcloud/

tool/update.sh

@@ -27,7 +27,7 @@ elif [ -d "external/nextcloud-$1" ]; then
       # shellcheck disable=SC2001
       latest_version=$(echo "$latest_tag" | sed "s/^v//")
       if [[ "$1" == "server" ]]; then
-        sed -i "s/FROM nextcloud:.*/FROM nextcloud:$latest_version/" ../../tool/Dockerfile.dev
+        sed -i "s/FROM nextcloud:.*/FROM nextcloud:$latest_version-fpm-alpine/" ../../tool/Dockerfile.dev
       else
         sed -i "s/RUN \.\/occ app:install $1 .*/RUN .\/occ app:install $1 --force --allow-unstable # $latest_version/" ../../tool/Dockerfile.dev
       fi