From ead34b7ebd8a2f3b81314d72afbc6c8e0cbaa872 Mon Sep 17 00:00:00 2001
From: 2bleere <ramonluis@gmail.com>
Date: Wed, 30 Jul 2025 09:33:16 -0500
Subject: [PATCH] Updated Dockerfile for multiarch build for amd64 and arm64
 downloading netdiscover binary for the right architecture from an alternate
 repo. Updated base image to bookworm slim and updated legacy ENV variables in
 Dockerfile. Build with dockerbuildx: docker buildx build --platform
 linux/amd64,linux/arm64 -t your-image:tag .

---
 Dockerfile | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 6fd833c..63f3ed3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,12 +1,13 @@
 ##
 ## Build rtpengine from source
 ##
-FROM debian:bookworm AS builder
+FROM debian:bookworm-slim AS builder
 
 WORKDIR /build
 
 ARG TAG_NAME=master
-ENV DEBIAN_FRONTEND noninteractive
+ARG TARGETARCH
+ENV DEBIAN_FRONTEND=noninteractive
 
 RUN apt-get update && apt-get -y install build-essential git curl \
   && echo 'man-db man-db/auto-update boolean false' | debconf-set-selections \
@@ -14,18 +15,23 @@ RUN apt-get update && apt-get -y install build-essential git curl \
   && cd rtpengine \
   && git checkout ${TAG_NAME} \
   && apt-get -y build-dep -Ppkg.ngcp-rtpengine.nobcg729 . \
-  && dpkg-buildpackage -Ppkg.ngcp-rtpengine.nobcg729 \
-  && curl -qL -o /usr/bin/netdiscover https://github.com/CyCoreSystems/netdiscover/releases/download/v1.2.5/netdiscover.linux.amd64 \
+  && dpkg-buildpackage -Ppkg.ngcp-rtpengine.nobcg729 -j1 \
+  && case ${TARGETARCH} in \
+    amd64) ARCH_SUFFIX="linux_amd64" ;; \
+    arm64) ARCH_SUFFIX="linux_arm64" ;; \
+    *) echo "Unsupported architecture: ${TARGETARCH}" && exit 1 ;; \
+  esac \
+  && curl -qL -o /usr/bin/netdiscover https://github.com/2bleere/netdiscover/releases/download/latest/netdiscover_${ARCH_SUFFIX} \
   && chmod +x /usr/bin/netdiscover
 
 ##
 ## Runner
 ##
-FROM debian:bookworm
+FROM debian:bookworm-slim
 
 WORKDIR /opt/rtpengine
 
-ENV DEBIAN_FRONTEND noninteractive
+ENV DEBIAN_FRONTEND=noninteractive
 
 RUN groupadd -r rtpengine && useradd -r -g rtpengine rtpengine