add # syntax=docker/dockerfile:latest

Signed-off-by: Zoey <zoey@z0ey.de>

Containers/apache/Dockerfile

@@ -1,3 +1,4 @@
+# syntax=docker/dockerfile:latest
 FROM caddy:2.7.6-alpine as caddy
 
 FROM httpd:2.4.58-alpine3.19

Containers/borgbackup/Dockerfile

@@ -1,3 +1,4 @@
+# syntax=docker/dockerfile:latest
 FROM alpine:3.19.1
 
 RUN set -ex; \

Containers/clamav/Dockerfile

@@ -1,3 +1,4 @@
+# syntax=docker/dockerfile:latest
 # Probably from this file: https://github.com/Cisco-Talos/clamav-docker/blob/main/clamav/1.1/alpine/Dockerfile
 FROM clamav/clamav:1.3.0-38
 

Containers/collabora/Dockerfile

@@ -1,3 +1,4 @@
+# syntax=docker/dockerfile:latest
 # From a file located probably somewhere here: https://github.com/CollaboraOnline/online/tree/master/docker
 FROM collabora/code:23.05.9.1.1
 

Containers/docker-socket-proxy/Dockerfile

@@ -1,3 +1,4 @@
+# syntax=docker/dockerfile:latest
 FROM haproxy:2.9.4-alpine3.19
 
 # hadolint ignore=DL3002

Containers/domaincheck/Dockerfile

@@ -1,3 +1,4 @@
+# syntax=docker/dockerfile:latest
 FROM alpine:3.19.1
 RUN set -ex; \
     apk add --no-cache bash lighttpd netcat-openbsd; \

Containers/fulltextsearch/Dockerfile

@@ -1,3 +1,4 @@
+# syntax=docker/dockerfile:latest
 # Probably from here https://github.com/elastic/elasticsearch/blob/main/distribution/docker/src/docker/Dockerfile
 FROM elasticsearch:8.12.1
 

Containers/imaginary/Dockerfile

@@ -1,6 +1,7 @@
+# syntax=docker/dockerfile:latest
 FROM golang:1.22.0-alpine3.19 as go
 
-ENV IMAGINARY_HASH 6cd9edd1d3fb151eb773c14552886e4fc8e50138
+ENV IMAGINARY_HASH 6cd9edd1d3fb151eb773c14552886e4fc8e50138
 
 RUN set -ex; \
     apk add --no-cache \

Containers/mastercontainer/Dockerfile

@@ -1,3 +1,4 @@
+# syntax=docker/dockerfile:latest
 # Docker CLI is a requirement
 FROM docker:25.0.3-cli as docker
 

Containers/nextcloud/Dockerfile

@@ -1,3 +1,4 @@
+# syntax=docker/dockerfile:latest
 FROM php:8.1.27-fpm-alpine3.19
 
 ENV PHP_MEMORY_LIMIT 512M

Containers/notify-push/Dockerfile

@@ -1,3 +1,4 @@
+# syntax=docker/dockerfile:latest
 FROM alpine:3.19.1
 
 COPY --chmod=775 start.sh /start.sh

Containers/onlyoffice/Dockerfile

@@ -1,3 +1,4 @@
+# syntax=docker/dockerfile:latest
 # From https://github.com/ONLYOFFICE/Docker-DocumentServer/blob/master/Dockerfile
 FROM onlyoffice/documentserver:7.5.1.1
 

Containers/postgresql/Dockerfile

@@ -1,3 +1,4 @@
+# syntax=docker/dockerfile:latest
 # From https://github.com/docker-library/postgres/blob/master/15/alpine/Dockerfile
 FROM postgres:15.6-alpine
 

Containers/redis/Dockerfile

@@ -1,3 +1,4 @@
+# syntax=docker/dockerfile:latest
 # From https://github.com/docker-library/redis/blob/master/7.0/alpine/Dockerfile
 FROM redis:7.2.4-alpine
 

Containers/talk-recording/Dockerfile

@@ -1,3 +1,4 @@
+# syntax=docker/dockerfile:latest
 FROM python:3.12.2-alpine3.19
 
 COPY --chmod=775 start.sh /start.sh

Containers/talk/Dockerfile

@@ -1,3 +1,4 @@
+# syntax=docker/dockerfile:latest
 FROM nats:2.10.10-scratch as nats
 FROM eturnal/eturnal:1.12.0 AS eturnal
 FROM strukturag/nextcloud-spreed-signaling:1.2.3 as signaling

Containers/watchtower/Dockerfile

@@ -1,3 +1,4 @@
+# syntax=docker/dockerfile:latest
 # From https://github.com/containrrr/watchtower/blob/main/dockerfiles/Dockerfile.self-contained
 FROM containrrr/watchtower:1.7.1 as watchtower