From 909c477f3025eb56503ed493516d25c751867dee Mon Sep 17 00:00:00 2001
From: David Karlsson <35727626+dvdksn@users.noreply.github.com>
Date: Sun, 11 Feb 2024 14:53:01 +0100
Subject: [PATCH] release: multi-platform docker image

Adds a linux/arm64 platform variant to the Docker image

Signed-off-by: David Karlsson <35727626+dvdksn@users.noreply.github.com>
---
 .github/workflows/ci.yml | 1 +
 Dockerfile               | 6 +++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d16e721..0b0c4e6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -142,6 +142,7 @@ jobs:
         with:
           push: true
           tags: ${{ env.DOCKER_REPO }}:${{ env.GIT_VERSION }}
+          platforms: linux/amd64,linux/arm64
           cache-from: ${{ env.DOCKER_REPO }}:latest
           build-args: |
             VERSION=${{ env.GIT_VERSION }}
diff --git a/Dockerfile b/Dockerfile
index 618958f..bd8fc45 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,11 @@
 ARG GO_VERSION=1.21.4
 ARG TARGET=alpine:3.9
 
-FROM golang:${GO_VERSION}-alpine AS builder
+FROM --platform=$BUILDPLATFORM golang:${GO_VERSION}-alpine AS builder
+ARG TARGETARCH
+ARG TARGETOS
+ENV GOOS=$TARGETOS
+ENV GOARCH=$TARGETARCH
 
 RUN apk add --no-cache ca-certificates git