move build pipeline into github action to support multi-arch images

.github/workflows/build-and-publish.yaml

@@ -0,0 +1,52 @@
+name: Build and Publish Images
+
+on:
+  push:
+    branches:
+      - 'main'
+    tags:  # run on any tag that starts with `v.` but not tags that end with `-downstream`
+      - 'v.**'
+      - '!v.**-downstream'
+
+jobs:
+  build-and-publish:
+    name: Build and Publish
+    runs-on: ubuntu-latest
+    steps:
+      # Get the repository's code
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: |
+            quay.io/project-koku/koku-metrics-operator
+          tags: |
+            type=semver,pattern={{raw}}
+            type=semver,pattern={{sha}}
+            # set latest tag for default branch
+            type=raw,value=latest,enable={{is_default_branch}}
+
+      - name: Login to Quay.io
+        uses: redhat-actions/podman-login@v1
+        with:
+          registry: quay.io
+          username: ${{ secrets.QUAY_USER }}
+          password: ${{ secrets.QUAY_TOKEN }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          platforms: linux/arm64,linux/amd64,linux/s390x,linux/ppc64le
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}

Dockerfile

@@ -1,5 +1,5 @@
 # Build the manager binary
-FROM registry.access.redhat.com/ubi8/go-toolset:1.20.10-3 AS builder
+FROM --platform=${BUILDPLATFORM:-linux/amd64} registry.access.redhat.com/ubi8/go-toolset:1.20.10-3 AS builder
 ARG TARGETOS
 ARG TARGETARCH
 

Makefile

@@ -44,7 +44,7 @@ OS = $(shell go env GOOS)
 ARCH = $(shell go env GOARCH)
 
 # DOCKER := $(shell which docker 2>/dev/null)
-export DOCKER_DEFAULT_PLATFORM = linux/x86_64
+# export DOCKER_DEFAULT_PLATFORM = linux/x86_64
 
 # Set the Operator SDK version to use. By default, what is installed on the system is used.
 # This is useful for CI or a project to utilize a specific version of the operator-sdk toolkit.
@@ -170,9 +170,10 @@ run: manifests generate fmt vet ## Run a controller from your host.
 # If you wish to build the manager image targeting other platforms you can use the --platform flag.
 # (i.e. docker build --platform linux/arm64). However, you must enable docker buildKit for it.
 # More info: https://docs.docker.com/develop/develop-images/build_enhancements/
+PLATFORM ?= linux/amd64
 .PHONY: docker-build
 docker-build: ## Build docker image with the manager.
-	$(CONTAINER_TOOL) build -t ${IMG} .
+	$(CONTAINER_TOOL) build --platform=$(PLATFORM) -t ${IMG} .
 
 .PHONY: docker-push
 docker-push: ## Push docker image with the manager.
@@ -188,14 +189,10 @@ docker-push: ## Push docker image with the manager.
 PLATFORMS ?= linux/arm64,linux/amd64
 .PHONY: docker-buildx
 docker-buildx: ## Build and push docker image for the manager for cross-platform support
-	# copy existing Dockerfile and insert --platform=${BUILDPLATFORM} into Dockerfile.cross, and preserve the original Dockerfile
-	sed -e '1 s/\(^FROM\)/FROM --platform=\$$\{BUILDPLATFORM\}/; t' -e ' 1,// s//FROM --platform=\$$\{BUILDPLATFORM\}/' Dockerfile > Dockerfile.cross
 	- $(CONTAINER_TOOL) buildx create --name operator-builder --driver-opt image=moby/buildkit:v0.12.3
-	$(CONTAINER_TOOL) buildx use operator-builder
-	- $(CONTAINER_TOOL) buildx build --push --platform=$(PLATFORMS) --tag ${IMG} -f Dockerfile.cross .
+	- $(CONTAINER_TOOL) buildx use operator-builder
+	- $(CONTAINER_TOOL) buildx build --push --platform=$(PLATFORMS) --tag ${IMG} .
 	- $(CONTAINER_TOOL) buildx rm operator-builder
-	rm Dockerfile.cross
-
 
 ##@ Deployment