support for arm64

with the developer preview of ARM available for 4.9, adding support in it for SNC so we can work toward having crc support for macs

snc-library.sh

@@ -58,7 +58,7 @@ function run_preflight_checks() {
 
 	#Just warn if architecture is not supported
 	case $ARCH in
-		x86_64|ppc64le|s390x)
+		x86_64|ppc64le|s390x|aarch64)
 			echo "The host arch is ${ARCH}.";;
 		*)
  			echo "The host arch is ${ARCH}. This is not supported by SNC!";;

snc.sh

@@ -66,7 +66,7 @@ echo "Setting OPENSHIFT_INSTALL_RELEASE_IMAGE_OVERRIDE to ${OPENSHIFT_INSTALL_RE
 # Extract openshift-install binary if not present in current directory
 if test -z ${OPENSHIFT_INSTALL-}; then
     echo "Extracting OpenShift baremetal installer binary"
-    ${OC} adm release -a ${OPENSHIFT_PULL_SECRET_PATH} extract ${OPENSHIFT_INSTALL_RELEASE_IMAGE_OVERRIDE} --command=openshift-baremetal-install --to .
+    ${OC} adm release extract -a ${OPENSHIFT_PULL_SECRET_PATH} ${OPENSHIFT_INSTALL_RELEASE_IMAGE_OVERRIDE} --command=openshift-baremetal-install --to .
     OPENSHIFT_INSTALL=./openshift-baremetal-install
 fi
 

tools.sh

@@ -22,7 +22,12 @@ case "${ARCH}" in
     x86_64)
         yq_ARCH="amd64"
         SNC_GENERATE_MACOS_BUNDLE=1
-	SNC_GENERATE_WINDOWS_BUNDLE=1
+        SNC_GENERATE_WINDOWS_BUNDLE=1
+	;;
+    aarch64)
+        yq_ARCH="arm64"
+        SNC_GENERATE_MACOS_BUNDLE=1
+        SNC_GENERATE_WINDOWS_BUNDLE=
 	;;
     *)
         yq_ARCH=${ARCH}