96 lines
4.1 KiB
Markdown
96 lines
4.1 KiB
Markdown
# Release Engineering & Packaging Reference
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This document describes the release packaging, artifact verification, filesystem layout, systemd service hardening, and distribution model for `nx9-wg`.
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---
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## 1. Release Packaging Pipeline
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Release archives are generated using [`scripts/package-release.sh`](file:///home/sunil/Programs/nx9-wg/scripts/package-release.sh):
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```bash
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bash scripts/package-release.sh
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```
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### Packaging Outputs in `target/dist/`:
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- `nx9-wg-v0.8.0-linux-x86_64.tar.gz` (Standard gzip archive)
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- `nx9-wg-v0.8.0-linux-x86_64.tar.xz` (High-compression XZ archive)
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- `nx9-wg-v0.8.0-linux-x86_64.sha256` (Cryptographic SHA-256 checksums)
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---
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## 2. Release Archive Contents
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Every release archive contains everything required for a standalone, offline production deployment:
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```
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nx9-wg-v0.8.0-linux-x86_64/
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├── nx9-wg (Native executable binary, mode 0755)
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├── nx9-wg.service (Hardened systemd unit file, mode 0644)
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├── config.example.toml (Production configuration template, mode 0644)
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├── install.sh (Automated production installer, mode 0755)
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├── uninstall.sh (Safe uninstallation script, mode 0755)
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├── README.md (Primary project guide)
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├── LICENSE-MIT (MIT License text)
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├── LICENSE-APACHE (Apache 2.0 License text)
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└── docs/ (Complete offline documentation suite)
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```
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---
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## 3. Standalone Verification Invariant
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Release packages must function completely independently of the source repository. When extracted into an isolated clean directory (`/tmp/nx9-release-verify...`):
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- `nx9-wg version` outputs valid version, architecture, and platform strings.
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- `nx9-wg --help` lists all available subcommands.
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- `nx9-wg init` bootstraps the isolated SQLite database with WAL journals.
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- `nx9-wg system health` verifies database integrity.
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---
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## 4. Production Filesystem Layout
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```
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/usr/local/bin/nx9-wg (0755 root:root - Binary)
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/etc/nx9-wg/ (0750 root:root - Configuration Directory)
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├── config.toml (0640 root:root - Main Configuration File)
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└── nx9-wg.env (0600 root:root - Optional Environment Secrets)
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/var/lib/nx9-wg/ (0700 root:root - State & Database Directory)
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├── nx9-wg.db (0600 root:root - Authoritative SQLite Database)
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├── nx9-wg.db-wal (0600 root:root - Write-Ahead Log Journal)
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├── admin-password (0600 root:root - Generated Initial Password)
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└── backups/ (0700 root:root - Database Backup Archives)
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/var/log/nx9-wg/ (0750 root:root - Operational Logs)
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/etc/systemd/system/
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└── nx9-wg.service (0644 root:root - Systemd Service Unit)
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```
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---
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## 5. Systemd Security Sandboxing
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The production service unit (`nx9-wg.service`) enforces modern Linux security directives:
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- **Capabilities**: `CapabilityBoundingSet=CAP_NET_ADMIN CAP_NET_BIND_SERVICE` & `AmbientCapabilities=CAP_NET_ADMIN CAP_NET_BIND_SERVICE`.
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- **Filesystem**: `ProtectSystem=strict`, `ProtectHome=true`, `PrivateTmp=true`.
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- **System Isolation**: `ProtectControlGroups=true`, `RestrictSUIDSGID=true`, `LockPersonality=true`.
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- **Socket Domains**: `RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6 AF_NETLINK`.
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- **Directory Lifecycle**: `StateDirectory=nx9-wg`, `ConfigurationDirectory=nx9-wg`, `LogsDirectory=nx9-wg`.
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---
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## 6. Upgrade and Rollback Sequence
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### Mandatory Upgrade Flow
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1. **Pre-Upgrade Backup**: `nx9-wg backup create --description "Pre-upgrade checkpoint"`
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2. **Stop Service**: `sudo systemctl stop nx9-wg`
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3. **Install Binary**: `sudo install -m 0755 nx9-wg /usr/local/bin/nx9-wg`
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4. **Start Service**: `sudo systemctl start nx9-wg` (Schema migrations run automatically upon startup)
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5. **Verify State**: `nx9-wg reconcile plan` & `nx9-wg system health`
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### Rollback Flow
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1. **Stop Service**: `sudo systemctl stop nx9-wg`
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2. **Revert Binary**: `sudo install -m 0755 nx9-wg-old /usr/local/bin/nx9-wg`
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3. **Restore Database**: `nx9-wg backup restore <BACKUP_ID>`
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4. **Start Service**: `sudo systemctl start nx9-wg`
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