Runtime configuration pipeline

[nzhang-zh]

To produce a runtime configuration for runc to consume,

• [x] 1. Generate default spec
• [ ] 2. For container based artifacts, apply spec translated from image config on top of default spec.
• [ ] 3. For nix based artifacts, apply nix store mounting related configuration
  • [x] configuration for read only local nix store (simple bind mount)
  • [ ] configuration for read write local nix store (storage driver)
• [ ] 4. Apply configurations derived from user defined settings in high level abstraction

[nzhang-zh]

Some details of how to merge 2 records in haskell. SO

Going with Data.Semigroup for now.

• Merge is recursive by default so long as sub data types are also instance of Semigroup.
• Use Last to stop recursively merging downwards.
• Some configurations like env is stored as [String] which is appended together by default.

[CMCDragonkai]

You might want to have a look at:

1. Row types (allows open records)
2. Lenses