Add `NEXTCLOUD_INIT_HTACCESS` to run `occ maintenance:update:htaccess` after init (#1761)

Signed-off-by: John Molakvoæ <skjnldsv@protonmail.com>

README.md

@@ -141,6 +141,10 @@ If you share your html folder with multiple docker containers, you might want to
 
 - `NEXTCLOUD_INIT_LOCK` (not set by default) Set it to true to enable initialization locking. Other containers will wait for the current process to finish updating the html volume to continue.
 
+You might also want to make sure the htaccess is up to date after each container update. Especially on multiple swarm nodes as any discrepancy will make your server unusable.
+
+- `NEXTCLOUD_INIT_HTACCESS` (not set by default) Set it to true to enable run `occ maintenance:update:htaccess` after container initialization.
+
 If you want to use Redis you have to create a separate [Redis](https://hub.docker.com/_/redis/) container in your setup / in your docker-compose file. To inform Nextcloud about the Redis container, pass in the following parameters:
 
 - `REDIS_HOST` (not set by default) Name of Redis container

docker-entrypoint.sh

@@ -217,6 +217,12 @@ if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ] || [ "${NEXTCLOUD_UP
             echo "Initializing finished"
         fi
     fi
+
+    # Update htaccess after init if requested
+    if [ -n "${NEXTCLOUD_INIT_HTACCESS+x}" ]; then
+        run_as 'php /var/www/html/occ maintenance:update:htaccess'
+    fi
+
 fi
 
 exec "$@"