find . -name Dockerfile -exec sed -i \
-e "s|opnfv/functest-kubernetes-core|\
${repo}/functest-kubernetes-core:arm64-latest|g" {} +
find . -name Dockerfile -exec sed -i \
-e "s|opnfv/functest-kubernetes-core|\
${repo}/functest-kubernetes-core:arm64-latest|g" {} +