define args

Author: Richard87

.github/workflows/build.yaml

@@ -27,39 +27,28 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Log in to the Container registry
-        uses: docker/login-action@e92390c5fb421da1463c202d546fed0ec5c39f20 # v3.1.0
+        uses: docker/login-action@v3
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@d70bba72b1f3fd22344832f00baa16ece964efeb # v3.3.0
+        uses: docker/setup-buildx-action@v3
 
       - name: Extract metadata (tags, labels) for Docker
         id: meta
-        uses: docker/metadata-action@8e5442c4ef9f78752691e2d8f8d19755c6f78e81 # v5.1.1
+        uses: docker/metadata-action@v5
         with:
           images: "${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}"
 
       - name: AMD - Build and push Docker image
-        uses: docker/build-push-action@2cdde995de11925a030ce8070c3d77a52ffcf1c0 # v5.3.0
+        uses: docker/build-push-action@v5
         with:
           context: .
           push: true
-          build-args: |
-            TARGETOS=linux
-            TARGETARCH=amd64
-          tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
-
-      - name: ARM - Build and push Docker image
-        uses: docker/build-push-action@2cdde995de11925a030ce8070c3d77a52ffcf1c0 # v5.3.0
-        with:
-          context: .
-          push: true
-          build-args: |
-            TARGETOS=linux
-            TARGETARCH=arm64
+          platforms: |
+            linux/amd64
+            linux/arm64
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}

Dockerfile

@@ -1,9 +1,7 @@
 FROM --platform=$BUILDPLATFORM golang:1.22-alpine3.19 as builder
-
-RUN apk update && \
-    apk add bash jq alpine-sdk sed gawk git ca-certificates curl && \
-    apk add --no-cache gcc musl-dev
-
+# Define target arch variables so we can use them while crosscompiling, will be set automatically
+ARG TARGETOS
+ARG TARGETARCH
 WORKDIR /go/src/
 
 # get dependencies
@@ -14,17 +12,12 @@ RUN go mod download
 COPY . .
 
 # Build project
-ARG TARGETOS=linux
-ARG TARGETARCH=amd64
-RUN  GOOS=$TARGETOS GOARCH=$TARGETARCH CGO_ENABLED=0 go build -ldflags "-s -w" -a -installsuffix cgo -o /radix-oauth-guard
+RUN GOOS=$TARGETOS GOARCH=$TARGETARCH CGO_ENABLED=0 go build -ldflags "-s -w" -a -installsuffix cgo -o /radix-oauth-guard
 
-RUN addgroup -S -g 1000 guard
-RUN adduser -S -u 1000 -G guard guard
 
-FROM --platform=$TARGETOS/$TARGETARCH scratch
+FROM --platform=$TARGETPLATFORM scratch
 
 COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
-COPY --from=builder /etc/passwd /etc/passwd
 COPY --from=builder /radix-oauth-guard /radix-oauth-guard
 
 EXPOSE 8000