Parallel Go reimplementation of the dereth-tracker read side, deployed loopback-only (:8770) and reading the dereth TimescaleDB read-only. The live Python stack is untouched (added via a compose override, not by editing the tracked docker-compose.yml). - Phase 0 scaffold: stdlib net/http server (Go 1.22+ method+path routing), /health + /api-version, multi-stage distroless Docker build, and go-services/docker-compose.go.yml override (loopback :8770). - Phase 1: pgx v5 pool forced into read-only transactions, a 5s /live + /trails cache loop using the exact main.py:837 SQL, and Python-isoformat timestamps so output matches FastAPI's jsonable_encoder. - compare/compare_live.py: parity harness vs the live Python service. Uses the server-stamped received_at to prove same-row full-field equality and to make the online-set diff boundary-aware. Verified on live traffic (73 players): identical online set + 23-key schema, identity/type parity for all, every same-row pair matches on every field, and diff-row pairs differ only by the ~6s two-cache refresh skew. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
40 lines
1.5 KiB
YAML
40 lines
1.5 KiB
YAML
# Compose OVERRIDE that adds the Go services alongside the live Python stack.
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# It only ADDS containers; it never modifies the tracked docker-compose.yml or
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# any running Python service.
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#
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# Invoke from the repo root so the Compose project name resolves to
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# "mosswartoverlord" (same as the live stack) and the new container joins the
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# existing default network — letting it reach the `db` service by name:
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#
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# cd /home/erik/MosswartOverlord
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# export BUILD_VERSION="$(date -u +%Y.%-m.%-d.%H%M)-$(git rev-parse --short HEAD)"
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# docker compose -f docker-compose.yml -f go-services/docker-compose.go.yml \
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# build dereth-tracker-go
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# docker compose -f docker-compose.yml -f go-services/docker-compose.go.yml \
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# up -d --no-deps dereth-tracker-go
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#
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# --no-deps keeps Compose from touching the already-running `db` (and anything
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# else). The service is loopback-bound (127.0.0.1:8770); external reach is only
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# ever via the host nginx `location /go/` block (added separately).
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services:
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dereth-tracker-go:
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build:
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context: ./go-services/tracker-go
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args:
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BUILD_VERSION: ${BUILD_VERSION:-dev}
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container_name: dereth-tracker-go
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ports:
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- "127.0.0.1:8770:8770"
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environment:
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PORT: "8770"
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# Read-only use of the same dereth TimescaleDB the Python tracker writes.
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DATABASE_URL: "postgresql://postgres:${POSTGRES_PASSWORD}@db:5432/dereth"
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LOG_LEVEL: "INFO"
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depends_on:
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- db
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restart: unless-stopped
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logging:
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driver: "json-file"
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options:
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max-size: "10m"
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max-file: "3"
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