* Adding checksum verification kubectl Added checksum check of binary file, added PYTHONDONTWRITEBYTECODE variable to improve stability of pip after installing packages and deleting cache, added --no-compile switch to pip package installation to improve performance after deleting cache. * Update Dockerfile
Reducing the number of layers, increasing readability, reducing the size of the image (how much I can’t check, it’s impossible for me to build due to the unavailability of the vagrant repository)