System language hardening for alpha

[willshulman]

Items to consider include:

• Camel or snake case for fields
• Camel or snake for type values
• References
  • Can we use URLs more effectively
  • Defaulting with references and lattice.yaml vs system.yaml vs ?
• Review of all types and schemas

[willshulman]

References

• URLs
  • It would be nice to make use of URLs more effectively for referring to other sources (such as local files or git / Github repositories).
    • More compact and readable
    • More uniform across reference types which also aids in readability
    • Easier to use in contexts such as arguments passed to CLI commands (because of the compactness as a string)
  • Terraform takes this approach: https://www.terraform.io/docs/modules/sources.html

[kevindrosendahl]

should review ports. currently the port is an L-val in the ports map, which makes it unable to be parametrizable