v0.45.0

Changed

• Upgrade upstream loki helm chart from v11 (11.6.4) to v13 (13.5.0). Loki app version unchanged at 3.7.1.
• Pin loki.deploymentMode to SimpleScalable in values.yaml. Upstream v13 changed the default to Monolithic; this preserves the existing backend/read/write topology.
• Move gateway route configuration from loki.gateway.route to top-level gatewayRoute. Upstream v13 redefined gateway.route as a strict-schema map of named routes that rejected our flat structure. Consumers overriding loki.gateway.route.* must rename to gatewayRoute.*.
  • Note: It's better if you use the upstream loki.gateway.route. The gatewayRoute section is here for compatibility, and keeping a few extra features we had added.

Notable upstream changes

• New default livenessProbe on every loki pod (/loki/api/v1/status/buildinfo, 30s period, 10× failure threshold ≈ 5 min before kill).
• Memberlist hardening: defaults add abort_if_cluster_join_fails, IPv6-friendly advertise_addr: ${HASH_RING_INSTANCE_ADDR} (auto-injected from status.podIP), join retry/backoff. Backend/read/write pods now run with -config.expand-env=true.
• Server tuning defaults added (graceful_shutdown_timeout: 5s, gRPC keepalive, grpc_server_max_concurrent_streams: 1000, 100 MiB gRPC msg size, http_server_idle_timeout: 30s).
• k8s-sidecar bumped 2.6.0 → 2.7.1; gains /healthz liveness/readiness probes on new http-sidecar port (8080).
• Gateway nginx image bumped 1.29-alpine → 1.30-alpine.