From 786664a0a6b172a9c3b790ddd8026a1962926d03 Mon Sep 17 00:00:00 2001
From: Simon Mittag <simonmittag@gmail.com>
Date: Mon, 4 Dec 2023 18:49:51 +1100
Subject: [PATCH] doco

---
 Dockerfile | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Dockerfile b/Dockerfile
index 051cd43..d01718a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,3 +1,4 @@
+# This is multiarch including linux/amd64 and linux/arm64/v8, see: docker buildx imagetools inspect golang:1.21.4-alpine
 FROM golang:1.21.4-alpine AS build
 
 RUN apk update && apk upgrade && apk add --no-cache bash git
@@ -5,10 +6,12 @@ RUN apk update && apk upgrade && apk add --no-cache bash git
 WORKDIR .
 COPY . /proj/
 
+# now build from source on each platform this Dockerfile gets executed
 WORKDIR /proj
 RUN CGO_ENABLED=0 go build github.com/simonmittag/j8a/cmd/j8a
 
-#multistage build uses output from previous image
+# multistage build uses output from previous image
+# base image for distro is also multiarch, see: docker buildx imagetools inspect alpine
 FROM alpine
 COPY --from=build /proj/j8a /j8a