WASP backend for VictoriaLogs (backward compatible) + dashboard

[skudasov]

This PR introduces new VictoriaLogs backend for WASP.
Old Loki backend still exists, and all the API stays compatible.
Dashboards are compatible except for a small difference on the VU calculation side for the current interval.

Documentation is simplified; now we can start both stacks and run tests locally to verify the metrics for both data sources.

Loki

VictoriaMetrics

[github-actions]

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[Copilot]

Pull request overview

This pull request updates the WASP observability/logging story by introducing an OTEL log backend (alongside Loki), refreshing local observability stack setup (LGTM and VictoriaMetrics+OTEL), and bumping several Go dependencies (notably OpenTelemetry).

Changes:

• Added OTEL log streaming support to WASP generators with runtime backend selection via WASP_LOG_SEND_METHOD.
• Replaced generated dashboard code with provisionable Grafana dashboard JSONs and added a VictoriaMetrics+VictoriaLogs+OTEL local compose stack.
• Upgraded OpenTelemetry and other Go module dependencies across the repo.

Reviewed changes

Copilot reviewed 46 out of 58 changed files in this pull request and generated 10 comments.

Show a summary per file

File	Description
wasp/wasp.go	Adds OTEL client wiring and log-backend dispatch logic for generator responses/stats.
wasp/tmpl_generator.go	Updates template generator example to default to OTEL config.
wasp/perf_test.go	Adjusts Loki config usage and adds lint suppression comments for context usage.
wasp/otel_client.go	New OTEL OTLP HTTP log client + env-based config helper.
wasp/loki_client.go	Tweaks Loki config defaults/env loading and adds nil/empty URL validation.
wasp/loki_client_test.go	Updates tests to use DefaultLokiConfig() directly.
wasp/Justfile	Adds just recipes to bring LGTM / VictoriaMetrics stacks up/down.
wasp/go.mod	Adds OTEL log dependencies and bumps various transitive versions.
wasp/examples/simple_vu/main_test.go	Adds OTEL config to example generator config.
wasp/examples/simple_rps/main_test.go	Adds OTEL config to example generator config.
wasp/examples/simple_rps/gun.go	Replaces map[string]interface{} with map[string]any.
wasp/examples/scenario/main_test.go	Adds OTEL config to scenario example.
wasp/examples/profiles/node_vu_test.go	Adds OTEL config to profile example generators.
wasp/examples/profiles/node_vu_grafana_opts_test.go	Adds OTEL config to profile example generators.
wasp/examples/profiles/node_rps_test.go	Adds OTEL config to profile example generators.
wasp/examples/profiles/node_mixed_test.go	Adds OTEL config to profile example generators.
wasp/examples/profiles/node_background_load_test.go	Adds OTEL config to background/parallel profile examples.
wasp/examples/go.mod	Adds OTEL log deps and bumps various indirect deps.
wasp/dashboard/panels.go	Removes old grabana-based panel builder code.
wasp/dashboard/grafanasdk/panels.go	Removes old grafana-foundation-sdk panel builder code.
wasp/dashboard/dashboard.json	Adds a provisionable Grafana dashboard JSON for Loki.
wasp/dashboard/dashboard.go	Removes old grabana-based dashboard builder/deployer code.
wasp/dashboard/cmd/main.go	Removes the dashboard deployment CLI entrypoint.
wasp/dashboard-victoria-metrics/dashboard.json	Adds a provisionable Grafana dashboard JSON for VictoriaLogs.
wasp/compose/docker-compose.yaml	Mounts the dashboard JSON into Grafana for provisioning.
wasp/compose/conf/provisioning/datasources/loki.yaml	Sets a stable Loki datasource UID (loki).
wasp/compose/conf/provisioning/dashboards/sample.yaml	Adds a Grafana dashboard provider for WASP dashboards.
wasp/compose-victoria-metrics/README.md	Documents the local VictoriaMetrics+VictoriaLogs+OTEL stack.
wasp/compose-victoria-metrics/otel/otel-collector-config.yaml	Adds OTEL collector pipelines exporting to VM/VL.
wasp/compose-victoria-metrics/grafana/provisioning/datasources/datasources.yaml	Provisions VictoriaMetrics and VictoriaLogs datasources.
wasp/compose-victoria-metrics/grafana/provisioning/dashboards/dashboards.yaml	Provisions dashboards for the VictoriaMetrics stack.
wasp/compose-victoria-metrics/docker-compose.yml	Adds the VictoriaMetrics/VictoriaLogs/OTEL/Grafana compose stack.
framework/go.mod	Bumps OTEL + other dependencies (grpc, x/*, etc.).
framework/examples/myproject/go.mod	Adds OTEL log deps + backoff v5 + bumps gateway/grpc/etc.
framework/examples/myproject_cll/go.sum	Updates checksums for bumped dependencies.
framework/examples/myproject_cll/go.mod	Bumps OTEL + x/* + grpc deps.
framework/examples/chip_router/go.sum	Updates checksums for bumped dependencies.
framework/examples/chip_router/go.mod	Bumps OTEL + x/* deps.
framework/examples/chip_ingress/go.sum	Updates checksums for bumped dependencies.
framework/examples/chip_ingress/go.mod	Bumps OTEL + gateway/grpc + x/* deps.
framework/components/fake/go.sum	Updates checksums for bumped dependencies.
framework/components/fake/go.mod	Bumps OTEL + x/* deps.
framework/components/dockercompose/go.sum	Updates checksums for bumped dependencies.
framework/components/dockercompose/go.mod	Bumps OTEL + gateway/grpc + x/* deps.
framework/components/chiprouter/go.sum	Updates checksums for bumped dependencies.
framework/components/chiprouter/go.mod	Bumps OTEL + grpc + x/* deps.
framework/clclient/gql/internal/generated/generated.go	Minor import formatting change.
book/src/SUMMARY.md	Removes the deleted WASP “Try it out quickly” doc from the TOC.
book/src/libs/wasp/how-to/start_local_observability_stack.md	Updates local observability docs for LGTM and VictoriaMetrics+OTEL.
book/src/libs/wasp/how-to/run_included_tests.md	Removes the outdated “Try it out quickly” section.
book/src/libs/wasp/how-to/overview.md	Removes link to the deleted quick-start tests doc.
book/src/libs/wasp/getting_started.md	Adds Just and Docker as prerequisites.
book/go.sum	Updates checksums for bumped dependencies.
book/go.mod	Bumps OTEL + x/* deps.

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