Enable dynamic host architecture detection. (#1928)

* Enable dynamic host architecture detection.

This update sets the platform dynamically based on the host architecture,
enhancing flexibility for building multi-platform images across different architectures.

Signed-off-by: Ashok Pariya <[email protected]>

* Improve multi-architecture build support and error handling

Updated PLATFORMS to automatically include all supported platforms when export PLATFORMS=all is used.
Removed --no-cache to improve build time by leveraging cached layers during the build process.
Enhanced error handling for expected failures.
Added auto-detection of architecture for Docker buildx installation to support multiple platforms.

Signed-off-by: Ashok Pariya [email protected]

---------

Signed-off-by: Ashok Pariya <[email protected]>
Signed-off-by: Ashok Pariya [email protected]

Makefile

@@ -13,13 +13,16 @@ OPERATOR_IMAGE ?= cluster-network-addons-operator
 REGISTRY_IMAGE ?= cluster-network-addons-registry
 export OCI_BIN ?= $(shell if podman ps >/dev/null 2>&1; then echo podman; elif docker ps >/dev/null 2>&1; then echo docker; fi)
 TLS_SETTING := $(if $(filter $(OCI_BIN),podman),--tls-verify=false,)
-PLATFORMS ?= linux/amd64
+PLATFORM_LIST ?= linux/amd64,linux/s390x,linux/arm64
+ARCH := $(shell uname -m | sed 's/x86_64/amd64/;s/aarch64/arm64/')
+PLATFORMS ?= linux/${ARCH}
+PLATFORMS := $(if $(filter all,$(PLATFORMS)),$(PLATFORM_LIST),$(PLATFORMS))
 # Set the platforms for building a multi-platform supported image.
 # Example:
 # PLATFORMS ?= linux/amd64,linux/arm64,linux/s390x
 # Alternatively, you can export the PLATFORMS variable like this:
 # export PLATFORMS=linux/arm64,linux/s390x,linux/amd64
-ARCH := $(shell uname -m | sed 's/x86_64/amd64/')
+# or export PLATFORMS=all to automatically include all supported platforms.
 DOCKER_BUILDER ?= cnao-docker-builder
 OPERATOR_IMAGE_TAGGED := $(IMAGE_REGISTRY)/$(OPERATOR_IMAGE):$(IMAGE_TAG)
 

hack/build-operator-docker.sh

@@ -14,4 +14,5 @@ if [ ${#PLATFORM_LIST[@]} -eq 1 ]; then
 else
     ./hack/init-buildx.sh "$DOCKER_BUILDER"
     docker buildx build --platform "$PLATFORMS" $BUILD_ARGS
+    docker buildx rm "$DOCKER_BUILDER" 2>/dev/null || echo "Builder ${DOCKER_BUILDER} not found or already removed, skipping."
 fi

hack/build-operator-podman.sh

@@ -8,14 +8,13 @@ fi
 IFS=',' read -r -a PLATFORM_LIST <<< "$PLATFORMS"
 
 # Remove any existing manifest and image
-podman manifest rm "${OPERATOR_IMAGE_TAGGED}" || true
-podman rmi "${OPERATOR_IMAGE_TAGGED}" || true
+podman manifest rm "${OPERATOR_IMAGE_TAGGED}" 2>/dev/null || true
+podman rmi "${OPERATOR_IMAGE_TAGGED}" 2>/dev/null || true
 
 podman manifest create "${OPERATOR_IMAGE_TAGGED}"
 
 for platform in "${PLATFORM_LIST[@]}"; do
     podman build \
-        --no-cache \
         --build-arg BUILD_ARCH="$ARCH" \
         --platform "$platform" \
         --manifest "${OPERATOR_IMAGE_TAGGED}" \

hack/init-buildx.sh

@@ -6,7 +6,8 @@ check_buildx() {
   if ! docker buildx > /dev/null 2>&1; then
      mkdir -p ~/.docker/cli-plugins
      BUILDX_VERSION=$(curl -s https://api.github.com/repos/docker/buildx/releases/latest | jq -r .tag_name)
-     curl -L https://github.com/docker/buildx/releases/download/"${BUILDX_VERSION}"/buildx-"${BUILDX_VERSION}".linux-amd64 --output ~/.docker/cli-plugins/docker-buildx
+     ARCH=$(uname -m | sed 's/x86_64/amd64/;s/aarch64/arm64/')
+     curl -L https://github.com/docker/buildx/releases/download/"${BUILDX_VERSION}"/buildx-"${BUILDX_VERSION}".linux-"${ARCH}" --output ~/.docker/cli-plugins/docker-buildx
      chmod a+x ~/.docker/cli-plugins/docker-buildx
   fi
 }
@@ -20,7 +21,7 @@ create_or_use_buildx_builder() {
 
   check_buildx
 
-  current_builder="$(docker buildx inspect "${builder_name}")"
+  current_builder="$(docker buildx inspect "${builder_name}" 2>/dev/null)" || echo "Builder '${builder_name}' not found"
 
   if ! grep -q "^Driver: docker$" <<<"${current_builder}" && \
      grep -q "linux/amd64" <<<"${current_builder}" && \