Simone
6ba8cca70a
- ARCHITECTURE.md: fix WinRM subnet (192.168.1179), VM box shows VS 2026/Python 3.13/unzip+python build instead of .NET SDK 8/git clone/dotnet build - BEST-PRACTICES.md: fix VMnet11/192.168.11 VMnet8 NAT/192.168.79 - CI-FLOW.md: Step 3 workflow YAML updated to actual Invoke-CIJob.ps1 params (Submodules, BuildCommand, GuestArtifactSource); note that -VMIPAddress is auto-detected - OPTIMIZATION.md: BaseClean tier updated to VS BuildTools 2026, .NET SDK 10.0.203, Python 3.13.3 - gitea/workflow-example.yml: remove BUILD_VM_IP (auto-detected), replace -VMIPAddress/-Configuration with -Submodules/-BuildCommand/-GuestArtifactSource
195 lines
12 KiB
Markdown
195 lines
12 KiB
Markdown
# Architecture — Local CI/CD System
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## Overview
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A fully local, isolated CI/CD pipeline running on a Windows host using:
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- **Gitea** as the self-hosted Git server + CI platform
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- **act_runner** as the job executor (runs on the Windows host)
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- **VMware Workstation** for ephemeral build VMs (linked clones)
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- **WinRM / PowerShell Remoting** for communication with build VMs
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- **MSBuild / dotnet CLI** executing inside the guest VM only
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The runner host **never executes build tools directly**. Its only role is orchestration: creating, driving, and destroying VMs.
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---
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## System Diagram
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```
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┌─────────────────────────────────────────────────────────────────────────┐
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│ DEVELOPER WORKSTATION │
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│ │
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│ git push → Gitea (self-hosted, LAN) │
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└───────────────────────────┬─────────────────────────────────────────────┘
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│ HTTP/HTTPS (Gitea Actions API)
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▼
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┌─────────────────────────────────────────────────────────────────────────┐
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│ WINDOWS HOST (i9-10900X · 64 GB RAM · NVMe SSD) │
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│ │
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│ ┌───────────────────┐ polls job queue ┌──────────────────┐ │
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│ │ Gitea Server │◄────────────────────────►│ act_runner │ │
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│ │ (Actions API) │ reports status/logs │ (Windows svc) │ │
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│ └───────────────────┘ └────────┬─────────┘ │
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│ │ │
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│ calls Invoke-CIJob.ps1 │
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│ │ │
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│ ▼ │
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│ ┌───────────────────────────────────────────────────────────────────┐ │
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│ │ Orchestrator Scripts (PowerShell) │ │
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│ │ │ │
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│ │ New-BuildVM.ps1 ──► vmrun.exe (linked clone from template) │ │
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│ │ Wait-VMReady.ps1 ─► Test-WSMan poll loop │ │
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│ │ Invoke-RemoteBuild.ps1 ► PSSession + Invoke-Command │ │
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│ │ Get-BuildArtifacts.ps1 ► Copy-Item -FromSession │ │
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│ │ Remove-BuildVM.ps1 ───► vmrun stop + deleteVM │ │
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│ └───────────────────────────────┬───────────────────────────────────┘ │
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│ │ vmrun.exe (VMware CLI) │
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│ ▼ │
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│ ┌───────────────────────────────────────────────────────────────────┐ │
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│ │ VMware Workstation │ │
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│ │ │ │
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│ │ Template VM ──snapshot "BaseClean"──┐ │ │
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│ │ ├── Clone_Job_001.vmx │ │
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│ │ ├── Clone_Job_002.vmx │ │
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│ │ └── Clone_Job_003.vmx │ │
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│ └───────────────────────────────────────────────────────────────────┘ │
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│ │ WinRM :5985 (192.168.79.0/24 NAT) │
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└──────────────────────────────────┼──────────────────────────────────────┘
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│
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┌────────────────────────┼──────────────────────────┐
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│ │ │
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▼ ▼ ▼
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┌──────────────────┐ ┌──────────────────┐ ┌──────────────────┐
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│ Build VM #1 │ │ Build VM #2 │ │ Build VM #N │
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│ (ephemeral) │ │ (ephemeral) │ │ (ephemeral) │
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│ │ │ │ │ │
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│ VS Build Tools │ │ VS Build Tools │ │ VS Build Tools │
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│ 2026 (v145) │ │ 2026 (v145) │ │ 2026 (v145) │
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│ .NET SDK 10 │ │ .NET SDK 10 │ │ .NET SDK 10 │
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│ Python 3.13.3 │ │ Python 3.13.3 │ │ Python 3.13.3 │
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│ WinRM enabled │ │ WinRM enabled │ │ WinRM enabled │
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│ │ │ │ │ │
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│ > unzip src │ │ > unzip src │ │ > unzip src │
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│ > python build │ │ > python build │ │ > python build │
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│ > dist/ │ │ > dist/ │ │ > dist/ │
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│ │ │ │ │ │
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│ [DESTROYED] │ │ [DESTROYED] │ │ [DESTROYED] │
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└──────────────────┘ └──────────────────┘ └──────────────────┘
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```
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---
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## Component Descriptions
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### Gitea (Self-hosted Git + CI)
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- Hosts Git repositories
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- Provides Gitea Actions (GitHub Actions-compatible YAML workflow engine)
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- Manages job queue and reports build status to commits/PRs
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- Stores build artifacts uploaded by act_runner
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### act_runner (Job Executor)
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- Runs as a Windows service on the host
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- Polls Gitea Actions API for pending jobs
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- Executes `.gitea/workflows/*.yml` steps
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- **Configured with `container.enabled: false`** — does NOT use Docker
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- Each step runs as a PowerShell command on the host (orchestration only)
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- Supports `capacity: N` for concurrent job execution (N parallel VMs)
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### VMware Workstation + vmrun CLI
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- Manages the template VM and all ephemeral clones
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- `vmrun.exe` is the command-line interface for all VM lifecycle operations
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- **Linked clones** are used: each build VM is a delta clone from a frozen template snapshot
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- Clone creation: ~5–15 seconds (vs 60–120 seconds for full clone)
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- Disk footprint: ~2–5 GB per clone (vs 40–80 GB for full clone)
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- Tradeoff: template snapshot must remain intact
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### WinRM / PowerShell Remoting
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- Default transport for remote build execution inside VMs
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- Port: **5985** (HTTP, in-lab use); migrate to 5986/HTTPS for hardened setups
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- Authentication: **Basic** (unencrypted — acceptable for isolated lab)
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- Used for:
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- Transferring source: `Compress-Archive` on host → WinRM copy → `Expand-Archive` in guest
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- Running build commands (`Invoke-Command`)
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- Packaging artifacts (`Compress-Archive` in guest) and collecting via `Copy-Item -FromSession`
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### Build Toolchain (inside VM only)
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- Visual Studio Build Tools **2026** (MSBuild 18.5.4 / toolset v145)
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- .NET SDK **10.0.203**
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- Python **3.13.3** (per build script personalizzati come `build_plugin.py`)
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- Git (per repo clone inside VM)
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- NuGet CLI (optional, dotnet restore covers most cases)
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---
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## Network Topology
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```
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Host NIC (LAN) → 192.168.1.x → Gitea server (10.10.20.11:3100), developer machines
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VMware VMnet8 (NAT) → 192.168.79.0/24 → Build VMs (DHCP, internet access via NAT)
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Build VMs:
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Clone_Job_001 → 192.168.79.131
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Clone_Job_002 → 192.168.79.132
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...
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Clone_Job_N → 192.168.79.1xx
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WinRM port 5985 (HTTP) on each VM IP.
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VMs have internet access via NAT — required for pip/nuget during build.
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```
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> **Note:** VMnet8 NAT gives VMs internet access. The host detects the VM IP via
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> `vmrun getGuestIPAddress` after boot — no static IP assignment needed.
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---
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## VM Lifecycle
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```
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1. TEMPLATE (static, locked)
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└─ Snapshot: "BaseClean" ───────────────────────┐
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│
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2. CLONE CREATION │
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vmrun clone <template.vmx> <clone.vmx> linked ──►│
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Duration: ~5–15 seconds │
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│
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3. START │
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vmrun start <clone.vmx> nogui │
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Duration: ~20–40 seconds boot │
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│
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4. READINESS CHECK │
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Poll: getState=running → ping → Test-WSMan │
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Duration: ~30–90 seconds total │
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│
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5. BUILD │
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Copy script → Invoke-Command → collect artifacts │
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Duration: varies (seconds to minutes) │
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│
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6. DESTROY │
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vmrun stop hard -> vmrun deleteVM → Remove-Item │
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Duration: ~5–10 seconds │
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Result: zero disk footprint remaining ▼
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```
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---
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## Resource Limits & Parallel Capacity
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| Resource | Host Total | Per VM (est.) | Max VMs |
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| --------------- | ---------------------- | --------------- | ---------------- |
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| RAM | 64 GB | ~6–8 GB | 8–10 |
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| CPU | 20 threads (i9-10900X) | ~4 vCPU | 5 |
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| NVMe IOPS | High | Clone delta I/O | ~6–8 |
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| **Recommended** | — | — | **4 concurrent** |
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`act_runner` `capacity: 4` is the conservative default. Raise to 6 after benchmarking.
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---
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## Security Boundaries
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- Build VMs are on VMnet8 NAT (192.168.79.0/24) — host reaches VMs, VMs have internet access
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- WinRM credentials are stored in Windows Credential Manager on host (not hardcoded)
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- Each VM is fully destroyed after the job — no state carries between builds
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- Runner host does not expose any ports to the build VM network
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- Source code is transferred via zip (Compress-Archive → WinRM copy → Expand-Archive in guest) — no git clone inside VM
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