Merge pull request #666 from oldgiova/QA-613-multiplatform-build

Multiplaform build

.gitlab-ci.yml

@@ -1,5 +1,7 @@
 variables:
   DOCKER_REPOSITORY: mendersoftware/deviceauth
+  MULTIPLATFORM_BUILD: "true"
+  MULTIPLATFORM_PLATFORMS: "linux/amd64,linux/arm64"
 
 stages:
   - test_prep
@@ -45,3 +47,18 @@ test:acceptance_tests:
       for cover in $@; do
         tail -n +2 $cover >> tests/coverage-acceptance.txt;
       done
+
+# excludes non multiplatform build job
+build:docker:
+  rules:
+    - when: never
+
+# excludes non multiplatform build job
+publish:image:
+  rules:
+    - when: never
+
+# excludes non multiplatform build job
+publish:image:mender:
+  rules:
+    - when: never

Dockerfile

@@ -1,4 +1,5 @@
-FROM golang:1.20.4-alpine3.16 as builder
+FROM --platform=$BUILDPLATFORM golang:1.20.4-alpine3.16 as builder
+ARG TARGETARCH
 WORKDIR /go/src/github.com/mendersoftware/deviceauth
 RUN mkdir -p /etc_extra
 RUN echo "nobody:x:65534:" > /etc_extra/group
@@ -8,7 +9,7 @@ RUN mkdir -p /tmp_extra && chown nobody:nobody /tmp_extra
 RUN chown -R nobody:nobody /etc_extra
 RUN apk add --no-cache ca-certificates
 COPY ./ .
-RUN CGO_ENABLED=0 GOARCH=amd64 go build -o deviceauth .
+RUN CGO_ENABLED=0 GOARCH=$TARGETARCH go build -o deviceauth .
 
 FROM scratch
 EXPOSE 8080