operator: build multi-arch images for peerpod-ctl

Fixes: #1432

Signed-off-by: Qi Feng Huo <huoqif@cn.ibm.com>

.github/workflows/peerpod-ctrl_image.yaml

@@ -9,6 +9,7 @@ on:
   push:
     branches:
       - main
+      - huoqifeng/peerpod-ctl-img
     paths:
       - 'peerpod-ctrl/**'
 
@@ -25,6 +26,10 @@ jobs:
         uses: actions/checkout@v3
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2
+      - name: Install build dependencies
+        run: |
+          sudo apt-get update -y
+          sudo apt-get install -y libvirt-dev
       - name: Login to Quay container Registry
         uses: docker/login-action@v2
         with:
@@ -43,6 +48,7 @@ jobs:
             quay.io/confidential-containers/peerpod-ctrl:${{ github.sha }}
           push: true
           context: peerpod-ctrl
+          platforms: linux/amd64, linux/s390x
           build-args: |
-            "$(make list-build-args)"
+            GOFLAGS=-tags=aws,azure,ibmcloud,vsphere,libvirt
 

peerpod-ctrl/Dockerfile

@@ -1,12 +1,12 @@
 # Build the manager binary
-FROM quay.io/confidential-containers/golang-fedora:1.20.7-36 as builder
+FROM --platform=$TARGETPLATFORM quay.io/confidential-containers/golang-fedora:1.20.8-36 as builder
 ARG TARGETOS
 ARG TARGETARCH
 ARG CGO_ENABLED=1
 ARG GOFLAGS
 
 WORKDIR /workspace
-RUN if [ "$CGO_ENABLED" = 1 ] ; then dnf install -y libvirt-devel; fi
+RUN if [ "$CGO_ENABLED" = 1 ] ; then dnf install -y libvirt-devel && dnf clean all; fi
 # Copy the Go Modules manifests
 COPY go.mod go.mod
 COPY go.sum go.sum
@@ -19,16 +19,17 @@ COPY main.go main.go
 COPY api/ api/
 COPY controllers/ controllers/
 
+RUN if [ "$TARGETARCH" = s390x ] ; then ln /usr/bin/gcc /usr/bin/s390x-linux-gnu-gcc; fi
+
 # Build
 # the GOARCH has not a default value to allow the binary be built according to the host where the command
 # was called. For example, if we call make docker-build in a local env which has the Apple Silicon M1 SO
 # the docker BUILDPLATFORM arg will be linux/arm64 when for Apple x86 it will be linux/amd64. Therefore,
 # by leaving it empty we can ensure that the container and binary shipped on it will have the same platform.
 RUN CGO_ENABLED=${CGO_ENABLED} GOOS=${TARGETOS:-linux} GOARCH=${TARGETARCH} go build ${GOFLAGS} -a -o manager main.go
 
-FROM fedora:36
+FROM --platform=$TARGETPLATFORM fedora:36
 RUN if [ "$CGO_ENABLED" = 1 ] ; then dnf install -y libvirt-libs /usr/bin/ssh && dnf clean all; fi
-RUN dnf install -y libvirt-libs /usr/bin/ssh
 WORKDIR /
 COPY --from=builder /workspace/manager .
 

peerpod-ctrl/Makefile

@@ -63,7 +63,7 @@ endif
 SHELL = /usr/bin/env bash -o pipefail
 .SHELLFLAGS = -ec
 
-BUILTIN_CLOUD_PROVIDERS ?= aws azure ibmcloud libvirt
+BUILTIN_CLOUD_PROVIDERS ?= aws azure ibmcloud vsphere libvirt
 # Build tags required to build cloud-api-adaptor are derived from BUILTIN_CLOUD_PROVIDERS.
 # When libvirt is specified, CGO_ENABLED is set to 1.
 space := $() $()