Implement Phase 0b base project against the frozen test contract
All seven services (gateway, ledger, fraud, sanctions, insights, notifier, audit), db/schema.sql plus optional_indexes.sql, scripts/seed.py and smoke.py, the gateway-served frontend, and docker-compose.yml. Plain-text stdlib logging and a weak manual X-Request-Id only -- no observability yet, by design, per test_no_observability.py. Implements all 13 named chaos-flag pathologies from docs/PATHOLOGIES.md behind Redis-backed runtime flags. make smoke and make test-contract pass; make test-baseline and make test-pathology pass except for a handful of load-sensitive tests documented in tests/README.md rather than papered over.
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Movses Aslanyan
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x-app-env: &app-env
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POSTGRES_DSN: postgresql+asyncpg://ledgerline:ledgerline@postgres:5432/ledgerline
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REDIS_URL: redis://redis:6379/0
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GATEWAY_URL: http://gateway:8000
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LEDGER_URL: http://ledger:8001
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FRAUD_URL: http://fraud:8002
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SANCTIONS_URL: http://sanctions:8003
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INSIGHTS_URL: http://insights:8004
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NOTIFIER_URL: http://notifier:8005
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x-app-build: &app-build
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build:
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context: .
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dockerfile: Dockerfile
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x-app-volumes: &app-volumes
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volumes:
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- ./common:/app/common
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- ./services:/app/services
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- ./db:/app/db
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- ./scripts:/app/scripts
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x-app-depends: &app-depends
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depends_on:
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postgres:
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condition: service_healthy
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redis:
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condition: service_healthy
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services:
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postgres:
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image: postgres:16-alpine
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# max_connections=300: five separate services each keep their own
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# SQLAlchemy pool (several sized up to pool_size=20+max_overflow=10),
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# all against this one Postgres instance -- comfortably clears the
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# default 100 under concurrent load instead of silently rationing
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# connections in a way that looks like an unrelated pathology.
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command:
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- postgres
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- -c
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- shared_preload_libraries=pg_stat_statements
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- -c
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- pg_stat_statements.track=all
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- -c
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- pg_stat_statements.max=10000
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- -c
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- max_connections=300
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environment:
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POSTGRES_USER: ledgerline
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POSTGRES_PASSWORD: ledgerline
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POSTGRES_DB: ledgerline
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ports:
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- "5432:5432"
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healthcheck:
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test: ["CMD-SHELL", "pg_isready -U ledgerline -d ledgerline"]
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interval: 3s
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timeout: 3s
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retries: 20
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volumes:
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- pgdata:/var/lib/postgresql/data
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redis:
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image: redis:7-alpine
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ports:
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- "6379:6379"
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healthcheck:
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test: ["CMD", "redis-cli", "ping"]
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interval: 3s
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timeout: 3s
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retries: 20
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gateway:
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<<: [*app-build, *app-depends]
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volumes:
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- ./common:/app/common
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- ./services:/app/services
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- ./db:/app/db
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- ./scripts:/app/scripts
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environment:
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<<: *app-env
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SERVICE_NAME: gateway
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command: uvicorn services.gateway.app:app --host 0.0.0.0 --port 8000 --reload --no-access-log
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ports:
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- "8000:8000"
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healthcheck:
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test: ["CMD", "curl", "-f", "http://localhost:8000/healthz"]
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interval: 5s
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timeout: 3s
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retries: 10
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start_period: 10s
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ledger:
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<<: [*app-build, *app-depends]
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volumes:
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- ./common:/app/common
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- ./services:/app/services
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- ./db:/app/db
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- ./scripts:/app/scripts
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environment:
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<<: *app-env
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SERVICE_NAME: ledger
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command: uvicorn services.ledger.app:app --host 0.0.0.0 --port 8001 --reload --no-access-log
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ports:
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- "8001:8001"
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healthcheck:
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test: ["CMD", "curl", "-f", "http://localhost:8001/healthz"]
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interval: 5s
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timeout: 3s
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retries: 10
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start_period: 10s
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fraud:
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<<: [*app-build, *app-depends]
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volumes:
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- ./common:/app/common
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- ./services:/app/services
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- ./db:/app/db
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- ./scripts:/app/scripts
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environment:
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<<: *app-env
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SERVICE_NAME: fraud
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command: uvicorn services.fraud.app:app --host 0.0.0.0 --port 8002 --reload --no-access-log
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ports:
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- "8002:8002"
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healthcheck:
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test: ["CMD", "curl", "-f", "http://localhost:8002/healthz"]
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interval: 5s
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timeout: 3s
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retries: 10
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start_period: 10s
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sanctions:
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<<: [*app-build, *app-depends]
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volumes:
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- ./common:/app/common
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- ./services:/app/services
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- ./db:/app/db
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- ./scripts:/app/scripts
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environment:
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<<: *app-env
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SERVICE_NAME: sanctions
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command: uvicorn services.sanctions.app:app --host 0.0.0.0 --port 8003 --reload --no-access-log
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ports:
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- "8003:8003"
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healthcheck:
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test: ["CMD", "curl", "-f", "http://localhost:8003/healthz"]
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interval: 5s
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timeout: 3s
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retries: 10
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start_period: 10s
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insights:
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<<: [*app-build, *app-depends]
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volumes:
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- ./common:/app/common
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- ./services:/app/services
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- ./db:/app/db
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- ./scripts:/app/scripts
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environment:
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<<: *app-env
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SERVICE_NAME: insights
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command: uvicorn services.insights.app:app --host 0.0.0.0 --port 8004 --reload --no-access-log
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ports:
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- "8004:8004"
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healthcheck:
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test: ["CMD", "curl", "-f", "http://localhost:8004/healthz"]
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interval: 5s
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timeout: 3s
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retries: 10
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start_period: 10s
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notifier:
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<<: [*app-build, *app-depends]
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volumes:
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- ./common:/app/common
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- ./services:/app/services
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- ./db:/app/db
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- ./scripts:/app/scripts
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environment:
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<<: *app-env
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SERVICE_NAME: notifier
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command: uvicorn services.notifier.app:app --host 0.0.0.0 --port 8005 --reload --no-access-log
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ports:
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- "8005:8005"
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healthcheck:
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test: ["CMD", "curl", "-f", "http://localhost:8005/healthz"]
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interval: 5s
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timeout: 3s
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retries: 10
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start_period: 10s
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audit:
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<<: [*app-build, *app-depends]
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volumes:
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- ./common:/app/common
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- ./services:/app/services
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- ./db:/app/db
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- ./scripts:/app/scripts
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environment:
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<<: *app-env
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SERVICE_NAME: audit
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command: python -m services.audit.worker
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volumes:
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pgdata:
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