Merge pull request #543 from bharathappali/rollback-ubuntu-arm32

Rolling back ubuntu version to 18.04 on armv7l due to GPG error

Author: karianna

dockerfile_functions.sh

@@ -41,7 +41,11 @@ print_legal() {
 
 # Print the supported Ubuntu OS
 print_ubuntu_ver() {
-	os_version="20.04"
+	if [ ${current_arch} == "armv7l" ]; then
+		os_version="18.04"
+	else
+		os_version="20.04"
+	fi
 
 	cat >> "$1" <<-EOI
 	FROM ubuntu:${os_version}