Hands-On Enterprise Automation on Linux

Using ready-made template images

For most platforms, there are a large number of readily available images for you to download, and again, we discussed a few of these in the previous chapter. For many enterprises, these images will be sufficient. However, what if you absolutely need full control over your image definition? Perhaps you are adopting a new standard (at the time of writing, Red Hat Enterprise Linux 8 has just been released, and CentOS 8 will surely follow in due course), and you want to implement it early to gain experience and test workloads. What if you operate in a secure environment (perhaps payment card industry-compliant), and you absolutely have to have 100% confidence in how the image was built and there can be no risk ...