substrate

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Jeff Luo 1da82f3e6a imagecache: add ate.imagecache.requests hit and miss telemetry (#831 ) (#834 )

Add the `ate.imagecache.requests` counter.

  **`ate.imagecache.outcome`** (new key in `internal/ateattr`)

  | Value | Meaning |
  |---|---|
| `hit` | the node holds a complete image record: each layer directory
that the record names is present |
  | `miss` | the lookup must pull |
| `error` | the lookup failed; the only outcome that carries
`error.type` |
| `cancelled`, `timeout` | the caller gave up, so the cache is not at
fault |

A failed lookup is neither a hit nor a miss, so it gets its own outcome,
as
`no_free_worker` does on `ate.scheduler.outcome`. `cancelled` and
`timeout` are
outcomes for the same reason they are on `ate.router.outcome`. The hit
ratio is
therefore `hit / (hit + miss)`, with failures and abandoned lookups out
of the
  denominator.

  **`error.type`** — set only on the `error` outcome.

  | Value | Meaning |
  |---|---|
| `404`, `401`, `429`, ... | the registry rejected the request; its own
HTTP status, reported verbatim |
  | `_OTHER` | the failure carries no status of its own |

Fixes #831

> It's a good idea to open an issue first for discussion.

- [x] Tests pass
- [x] Appropriate changes to documentation are included in the PR

2026-08-12 09:50:30 -04:00

assets

Add initial threat model for substrate (#303 )

2026-07-01 10:31:39 -07:00

dev

docs: add guide for running the microVM runtime locally (KVM / Lima) (#743 )

2026-08-12 08:39:41 -04:00

api-guide.md

Remove the secretKeyRef env sources feature (#835 )

2026-08-11 16:13:30 -07:00

api-style-guide.md

A few more edits: