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HydraCache 0.57.0

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@github-actions github-actions released this 13 Jul 15:30
· 1099 commits to main since this release
v0.57.0
1a6e2d3

HydraCache 0.57.0

0.57.0 adds a read-only Management Center and completes the observability
surface around the already-shipped server, actuator, grid, and operator pieces.
The release replaces modeled-only admin status with an explicit live/modeled
source tag, serves Prometheus and overview data from the internal admin surface,
ships a same-origin console, and adds a drift-guarded Grafana dashboard.

The release is an operate-in-prod surface, not a new control plane. Mutations
remain on the 0.56 authz-gated admin API and operator paths.

Highlights

  • Added ClusterStatusProvider with source:"live"|"modeled" so modeled data
    is never presented as live.
  • Completed Prometheus rendering for admission, topology, and cluster-grid
    metrics already registered by the observability crate.
  • Served /metrics, /cluster/overview, /console, and the read-only actuator
    from the internal admin surface, including during drain.
  • Added the ClusterOverview read-model with honest leader, reachability,
    consistency distribution, partition, and backup-age semantics.
  • Added the read-only Management Center web console and wired its Node-gated
    tests into cargo xtask verify when Node/npm are available.
  • Wired role = "member" to build a real in-process grid member for W6a while
    leaving local and client roles modeled.
  • Added docs/observability/dashboards/hydracache-overview.json and a Rust
    drift guard that validates dashboard PromQL against registered_metric_names().

Verification

Focused gates:

cargo test -p hydracache-server --locked cluster_status
cargo test -p hydracache-observability --locked prometheus_exporter
cargo test -p hydracache-server --locked admin_http
cargo test -p hydracache-server --locked cluster_overview
npm --prefix console test
cargo test -p hydracache-server --test grid_host --locked -j 1
cargo test -p hydracache-server --test actuator_mount --locked -j 1
cargo test -p hydracache-observability --test dashboard_metrics --locked -j 1

Full gate:

cargo xtask verify

Deferred Technical Debt

W6b networked multi-daemon grid hosting is intentionally deferred and tracked as
TD-0008. The
daemon now hosts a real in-process member for source:"live" status, but it
does not yet wire the networked raft, transport, and discovery adapters into a
multi-process daemon cluster. The ignored sentinel test remains in place for
that follow-up.

Scope Boundary

Management Center is read-only and runs on the internal admin surface. It does
not add a write UI, bundled TSDB, new consistency level, or new fast-path cache
algorithm.

Release Status

Published as 0.57.0 after W0-W8 landed and the full cargo xtask verify gate
passed. The remaining networked daemon-grid follow-up is documented as
TD-0008.

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