find . -name Dockerfile -exec sed -i -e "s|opnfv/functest-core|${repo}/functest-core:amd64-latest|g" {} +
for dir in ${amd64_dirs}; do
find . -name Dockerfile -exec sed -i -e "s|opnfv/functest-core|${repo}/functest-core:amd64-latest|g" {} +
for dir in ${amd64_dirs}; do