binary

Overview ¶

Package binary implements a ControllerPlugin that forks an external binary once per operation.

Calling convention ¶

<binary_path> --op <op> [--<key> <value> ...]

The binary writes a single JSON object to stdout and exits. Exit code 0 + empty "error" field = success. Exit code != 0 or non-empty "error" field = failure.

Operations and flags ¶

create
  --volume-id  <volumeID>   pre-generated UUIDv4
  --name       <name>       human-readable label
  stdout JSON: {"token":"...","private_data":"...","error":""}

destroy
  --volume-id  <volumeID>
  stdout JSON: {"error":""}

Configuration ¶

The binary reads its own credentials / config from wherever it likes (file, env vars, etc.). CubeMaster only passes the operation-specific fields above.