7e7393e4f8
DChain single-node blockchain + React Native messenger client. Core: - PBFT consensus with multi-sig validator admission + equivocation slashing - BadgerDB + schema migration scaffold (CurrentSchemaVersion=0) - libp2p gossipsub (tx/v1, blocks/v1, relay/v1, version/v1) - Native Go contracts (username_registry) alongside WASM (wazero) - WebSocket gateway with topic-based fanout + Ed25519-nonce auth - Relay mailbox with NaCl envelope encryption (X25519 + Ed25519) - Prometheus /metrics, per-IP rate limit, body-size cap Deployment: - Single-node compose (deploy/single/) with Caddy TLS + optional Prometheus - 3-node dev compose (docker-compose.yml) with mocked internet topology - 3-validator prod compose (deploy/prod/) for federation - Auto-update from Gitea via /api/update-check + systemd timer - Build-time version injection (ldflags → node --version) - UI / Swagger toggle flags (DCHAIN_DISABLE_UI, DCHAIN_DISABLE_SWAGGER) Client (client-app/): - Expo / React Native / NativeWind - E2E NaCl encryption, typing indicator, contact requests - Auto-discovery of canonical contracts, chain_id aware, WS reconnect on node switch Documentation: - README.md, CHANGELOG.md, CONTEXT.md - deploy/single/README.md with 6 operator scenarios - deploy/UPDATE_STRATEGY.md with 4-layer forward-compat design - docs/contracts/*.md per contract
25 lines
796 B
SYSTEMD
25 lines
796 B
SYSTEMD
# Timer for dchain-update.service — fires hourly with a random 15-minute jitter.
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#
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# Why the jitter: if every operator on the same network runs `OnCalendar=hourly`
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# at :00:00, the whole federation restarts its nodes in the same minute and
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# PBFT quorum drops below 2/3. With a random delay spread across 15 minutes
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# each node updates at a slightly different time, so at any instant the vast
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# majority of validators remain live.
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#
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# Persistent=true means if the machine was asleep/off at fire time, the timer
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# catches up on next boot instead of silently skipping.
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[Unit]
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Description=Run DChain node update hourly
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Requires=dchain-update.service
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[Timer]
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OnBootSec=10min
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OnUnitActiveSec=1h
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RandomizedDelaySec=15min
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Persistent=true
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Unit=dchain-update.service
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[Install]
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WantedBy=timers.target
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