singulrity 通过 sandbox 制作image

https://singularity.hpcng.org/user-docs/master/quick_start.html#build-images-from-scratch

new_dir=image_sandbox_dir
# 将镜像 解压成文件夹
# singularity build --sandbox $new_dir library://ubuntu
# singularity build --sandbox $new_dir tensorflow.image 
# 修改 文件夹。
singularity shell --writable $new_dir
# 制作新镜像
new_images=tensorflow_daiyi_0818.image
singularity build $new_images $new_dir