From 175fa4f6ad23ca11ccb92d23093cad1a42605734 Mon Sep 17 00:00:00 2001
From: Navid Yaghoobi <navidys@fedoraproject.org>
Date: Sat, 23 Sep 2023 16:36:43 +1000
Subject: [PATCH] multiarch container image build

Signed-off-by: Navid Yaghoobi <navidys@fedoraproject.org>
---
 .github/workflows/build-and-publish.yaml |  6 +++++-
 Containerfile                            | 12 +++++++-----
 Makefile                                 | 22 ++++++++++++++++++++++
 3 files changed, 34 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/build-and-publish.yaml b/.github/workflows/build-and-publish.yaml
index 51844421..ad1a8a12 100644
--- a/.github/workflows/build-and-publish.yaml
+++ b/.github/workflows/build-and-publish.yaml
@@ -28,7 +28,10 @@ jobs:
 
       - name: Build binary
         run: |
-          make binary-remote
+          make binary-remote-amd64
+          make binary-remote-s390x
+          make binary-remote-ppc64le
+          make binary-remote-arm64
 
       - name: Get image tags
         id: image_tag
@@ -48,6 +51,7 @@ jobs:
         with:
           image: ${{ env.IMAGE_NAMESPACE }}
           tags: "${{ steps.image_tag.outputs.IMAGE_TAG }}"
+          platforms: linux/amd64,linux/s390x,linux/ppc64le,linux/arm64
           containerfiles: |
             ./Containerfile
 
diff --git a/Containerfile b/Containerfile
index 5c60c6cd..b6c7bae5 100644
--- a/Containerfile
+++ b/Containerfile
@@ -1,10 +1,12 @@
-ARG ARCH="amd64"
-ARG OS="linux"
-FROM quay.io/prometheus/busybox-${OS}-${ARCH}:latest
-
+FROM --platform=${BUILDPLATFORM:-linux/amd64} quay.io/prometheus/busybox:latest
 LABEL maintainer="Navid Yaghoobi <navidys@fedoraproject.org>"
 
-COPY ./bin/remote/prometheus-podman-exporter /bin/podman_exporter
+ARG TARGETPLATFORM
+ARG BUILDPLATFORM
+ARG TARGETOS
+ARG TARGETARCH
+
+COPY ./bin/remote/prometheus-podman-exporter-${TARGETARCH} /bin/podman_exporter
 
 EXPOSE 9882
 USER nobody
diff --git a/Makefile b/Makefile
index ee07f87a..afe003fa 100644
--- a/Makefile
+++ b/Makefile
@@ -30,7 +30,29 @@ binary-remote: ## Build prometheus-podman-exporter for remote connection
 	@mkdir -p $(BIN)/remote
 	@export CGO_ENABLED=0 && $(GO) build $(BUILDFLAGS) --tags "remote containers_image_openpgp" -ldflags="-X '$(PKG_PATH)/cmd.buildVersion=$(VERSION)' -X '$(PKG_PATH)/cmd.buildRevision=$(REVISION)' -X '$(PKG_PATH)/cmd.buildBranch=$(BRANCH)'" -o $(BIN)/remote/$(TARGET)
 
+.PHONY: binary-remote-amd64
+binary-remote-amd64: ## Build amd64 prometheus-podman-exporter for remote connection
+	@mkdir -p $(BIN)/remote
+	@echo "building amd64"
+	@export CGO_ENABLED=0 && GOARCH=amd64 $(GO) build $(BUILDFLAGS) --tags "remote containers_image_openpgp" -ldflags="-X '$(PKG_PATH)/cmd.buildVersion=$(VERSION)' -X '$(PKG_PATH)/cmd.buildRevision=$(REVISION)' -X '$(PKG_PATH)/cmd.buildBranch=$(BRANCH)'" -o $(BIN)/remote/$(TARGET)-amd64
+
+.PHONY: binary-remote-s390x
+binary-remote-s390x: ## Build s390x prometheus-podman-exporter for remote connection
+	@mkdir -p $(BIN)/remote
+	@echo "building s390x"
+	@export CGO_ENABLED=0 && GOARCH=s390x $(GO) build $(BUILDFLAGS) --tags "remote containers_image_openpgp" -ldflags="-X '$(PKG_PATH)/cmd.buildVersion=$(VERSION)' -X '$(PKG_PATH)/cmd.buildRevision=$(REVISION)' -X '$(PKG_PATH)/cmd.buildBranch=$(BRANCH)'" -o $(BIN)/remote/$(TARGET)-s390x
 
+.PHONY: binary-remote-ppc64le
+binary-remote-ppc64le: ## Build ppc64le prometheus-podman-exporter for remote connection
+	@mkdir -p $(BIN)/remote
+	@echo "building ppc64le"
+	@export CGO_ENABLED=0 && GOARCH=ppc64le $(GO) build $(BUILDFLAGS) --tags "remote containers_image_openpgp" -ldflags="-X '$(PKG_PATH)/cmd.buildVersion=$(VERSION)' -X '$(PKG_PATH)/cmd.buildRevision=$(REVISION)' -X '$(PKG_PATH)/cmd.buildBranch=$(BRANCH)'" -o $(BIN)/remote/$(TARGET)-ppc64le
+
+.PHONY: binary-remote-arm64
+binary-remote-arm64: ## Build arm64 prometheus-podman-exporter for remote connection
+	@mkdir -p $(BIN)/remote
+	@echo "building arm64"
+	@export CGO_ENABLED=0 && GOARCH=arm64 $(GO) build $(BUILDFLAGS) --tags "remote containers_image_openpgp" -ldflags="-X '$(PKG_PATH)/cmd.buildVersion=$(VERSION)' -X '$(PKG_PATH)/cmd.buildRevision=$(REVISION)' -X '$(PKG_PATH)/cmd.buildBranch=$(BRANCH)'" -o $(BIN)/remote/$(TARGET)-arm64
 
 .PHONY: $(TARGET)
 $(TARGET): $(SRC)