After moving my workflow over to Docker I realized that it's not a complete solution. There is still the process that comes before Docker that must be addressed: namely, provisioning and managing machines on a (ugghh) "cloud" provider such as Amazon EC2, Digital Ocean, and even Vagrant. Also, CoreOS has become an important player in the Docker scene, providing just the minimum operating system needed to run Docker in a cluster environment. CoreOS also provides some commonality in the process of provisioning machines on different providers by making use of a cloud-config file; The same (or almost the same) cloud-config file can be used on different providers.
That's good news but it introduces problems like:
- I want to keep this piece of the cloud-config file out of source control
- I don't want to copy/paste between cloud-config files (DRY issues) :
- this cloud-config file is just like this one but with a different password/user/hostname/IP address
- this cloud-config file is just like this one but with an added section
So, I made a program to address these issues! Find out more by reading the README in the repository.
Comments are welcome.