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The GitHub Actions job "Required Checks" on texera.git/obs/pr3/deployment has succeeded.
Run started by GitHub user Ma77Ball (triggered by Ma77Ball).

Head commit for run:
3523acd61282fcf7f17ce395e89a52f871d593fd / Matthew Ball <mg...@uci.edu>
feat(observability): deployment (OTel collector + Parca/eBPF)

Add the local deployment wiring that receives and stores the telemetry
emitted by PR 2: an OpenTelemetry Collector plus logs, metrics, traces,
and profiles backends, for both the single-node docker-compose stack and
the Kubernetes Helm chart. Infrastructure only; the application runs
unchanged whether or not these services are started. This is PR 3 of the
observability stack.

Single-node compose (bin/single-node, bin/observability):
- otel-collector as the single OTLP ingress, routing to VictoriaLogs
  (logs), VictoriaMetrics (metrics), and Jaeger (traces); the collector
  config caps OTLP message size and bounds memory via memory_limiter.
- Parca server + eBPF agent for continuous profiling, configured in
  bin/observability/parca.
- Each signal is its own compose profile and is OFF by default:
  COMPOSE_PROFILES is empty, so observability is opt-in. docker compose
  reads COMPOSE_PROFILES natively via the canonical launcher.
- Emission is gated by OTEL_SDK_DISABLED (default disabled); nothing is
  emitted unless an operator opts in alongside the collector profile.

Kubernetes Helm chart (bin/k8s):
- Templates for the collector, Jaeger, VictoriaLogs, and VictoriaMetrics
  under templates/base/observability, plus values.yaml knobs and an
  install.sh helper.
- Service deployments gain the OTLP endpoint wiring.

Every observability port binds to loopback (127.0.0.1) or stays on the
bridge network; no 0.0.0.0 host bindings.

Tests: ObservabilityComposeSpec and ParcaConfigSpec (string-level smoke
tests over the compose, collector, and Parca config, pinning image
versions, the opt-in default, loopback binding, and the no-high-
cardinality-label rule). All 24 pass; sbt scalafmtCheckAll is clean.

Review follow-ups addressed: observability is opt-in rather than on by
default, and the privileged eBPF agent is opt-in with its host-wide scope
documented; removed the non-canonical up.sh launcher so COMPOSE_PROFILES
is the single switch; corrected the Parca README (the agent profiles every
host process, and profiles cannot be joined to traces by trace_id); moved
the local-dev-only OTLP host ports into docker-compose.override.yml so the
base compose stays deploy-clean; the release workflow now ships
bin/observability and rewrites the mount paths so the compose works from
the released single-node bundle; and removed the inter-PR references from
the configs, comments, and specs.

Stacked on PR 2 (obs/pr2/backend-emit).

Report URL: https://github.com/apache/texera/actions/runs/37974980749

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