remove buildplatform for Quay

Dockerfile

@@ -1,7 +1,4 @@
-FROM --platform=$BUILDPLATFORM azul/zulu-openjdk:17
-ARG TARGETPLATFORM
-ARG BUILDPLATFORM
-RUN echo "Running on $BUILDPLATFORM, building for $TARGETPLATFORM"
+FROM azul/zulu-openjdk:17
 WORKDIR /app
 ADD . /app
 RUN ./gradlew clean jar

README.md

@@ -50,4 +50,11 @@ By default, the application will be exposed on port 4242, and you can change thi
 For a permanent deployment, you will need to also adjust the public address in the configuration file to match your
 hostname, so that the proxy can rewrite the URLs in the responses from the central server correctly. Currently, this app
 doesn't do TLS termination, so you will need to put it behind a reverse proxy that does TLS termination for you if
-required. If you do so, also adjust the protocol in the configuration file to `https`.
+required. If you do so, also adjust the protocol in the configuration file to `https`.
+
+If you need to change the build architecture (e.g. when running on an ARM-based system), it is recommended to build the
+docker container from source. Simply uncomment the following line from the docker-compose file:
+
+```
+    #    build: .
+```

docker-compose.yml

@@ -2,6 +2,7 @@ version: '3'
 services:
   proxy:
     image: quay.io/itcrl/termserver-dfn-proxy:latest
+    #build: .
     ports:
       - "4242:4242"
     volumes: