provisioning/docs/book/development/kcl/KCL_MODULE_SYSTEM_IMPLEMENTATION.html
Jesús Pérez 6a59d34bb1
chore: update provisioning configuration and documentation
Update configuration files, templates, and internal documentation
for the provisioning repository system.

Configuration Updates:
- KMS configuration modernization
- Plugin system settings
- Service port mappings
- Test cluster topologies
- Installation configuration examples
- VM configuration defaults
- Cedar authorization policies

Documentation Updates:
- Library module documentation
- Extension API guides
- AI system documentation
- Service management guides
- Test environment setup
- Plugin usage guides
- Validator configuration documentation

All changes are backward compatible.
2025-12-11 21:50:42 +00:00

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<h1 id="kcl-module-loading-system---implementation-summary"><a class="header" href="#kcl-module-loading-system---implementation-summary">KCL Module Loading System - Implementation Summary</a></h1>
<p><strong>Date</strong>: 2025-09-29
<strong>Status</strong>: ✅ Complete
<strong>Version</strong>: 1.0.0</p>
<h2 id="overview"><a class="header" href="#overview">Overview</a></h2>
<p>Implemented a comprehensive KCL module management system that enables dynamic loading of providers, packaging for distribution, and clean separation between development (local paths) and production (packaged modules).</p>
<h2 id="what-was-implemented"><a class="header" href="#what-was-implemented">What Was Implemented</a></h2>
<h3 id="1-configuration-configdefaultstoml"><a class="header" href="#1-configuration-configdefaultstoml">1. Configuration (<code>config.defaults.toml</code>)</a></h3>
<p>Added two new configuration sections:</p>
<h4 id="kcl-section"><a class="header" href="#kcl-section"><code>[kcl]</code> Section</a></h4>
<pre><code class="language-toml">[kcl]
core_module = "{{paths.base}}/kcl"
core_version = "0.0.1"
core_package_name = "provisioning_core"
use_module_loader = true
module_loader_path = "{{paths.core}}/cli/module-loader"
modules_dir = ".kcl-modules"
</code></pre>
<h4 id="distribution-section"><a class="header" href="#distribution-section"><code>[distribution]</code> Section</a></h4>
<pre><code class="language-toml">[distribution]
pack_path = "{{paths.base}}/distribution/packages"
registry_path = "{{paths.base}}/distribution/registry"
cache_path = "{{paths.base}}/distribution/cache"
registry_type = "local"
[distribution.metadata]
maintainer = "JesusPerezLorenzo"
repository = "https://repo.jesusperez.pro/provisioning"
license = "MIT"
homepage = "https://github.com/jesusperezlorenzo/provisioning"
</code></pre>
<h3 id="2-library-kcl_module_loadernu"><a class="header" href="#2-library-kcl_module_loadernu">2. Library: <code>kcl_module_loader.nu</code></a></h3>
<p><strong>Location</strong>: <code>provisioning/core/nulib/lib_provisioning/kcl_module_loader.nu</code></p>
<p><strong>Purpose</strong>: Core library providing KCL module discovery, syncing, and management functions.</p>
<p><strong>Key Functions</strong>:</p>
<ul>
<li><code>discover-kcl-modules</code> - Discover KCL modules from extensions (providers, taskservs, clusters)</li>
<li><code>sync-kcl-dependencies</code> - Sync KCL dependencies for infrastructure workspace</li>
<li><code>install-provider</code> - Install a provider to an infrastructure</li>
<li><code>remove-provider</code> - Remove a provider from infrastructure</li>
<li><code>update-kcl-mod</code> - Update kcl.mod with provider dependencies</li>
<li><code>list-kcl-modules</code> - List all available KCL modules</li>
</ul>
<p><strong>Features</strong>:</p>
<ul>
<li>Automatic discovery from <code>extensions/providers/</code>, <code>extensions/taskservs/</code>, <code>extensions/clusters/</code></li>
<li>Parses <code>kcl.mod</code> files for metadata (version, edition)</li>
<li>Creates symlinks in <code>.kcl-modules/</code> directory</li>
<li>Updates <code>providers.manifest.yaml</code> and <code>kcl.mod</code> automatically</li>
</ul>
<h3 id="3-library-kcl_packagingnu"><a class="header" href="#3-library-kcl_packagingnu">3. Library: <code>kcl_packaging.nu</code></a></h3>
<p><strong>Location</strong>: <code>provisioning/core/nulib/lib_provisioning/kcl_packaging.nu</code></p>
<p><strong>Purpose</strong>: Functions for packaging and distributing KCL modules.</p>
<p><strong>Key Functions</strong>:</p>
<ul>
<li><code>pack-core</code> - Package core provisioning KCL schemas</li>
<li><code>pack-provider</code> - Package a provider module</li>
<li><code>pack-all-providers</code> - Package all discovered providers</li>
<li><code>list-packages</code> - List packaged modules</li>
<li><code>clean-packages</code> - Clean old packages</li>
</ul>
<p><strong>Features</strong>:</p>
<ul>
<li>Uses <code>kcl mod package</code> to create <code>.tar.gz</code> packages</li>
<li>Generates JSON metadata for each package</li>
<li>Stores packages in <code>distribution/packages/</code></li>
<li>Stores metadata in <code>distribution/registry/</code></li>
</ul>
<h3 id="4-enhanced-cli-module-loader"><a class="header" href="#4-enhanced-cli-module-loader">4. Enhanced CLI: <code>module-loader</code></a></h3>
<p><strong>Location</strong>: <code>provisioning/core/cli/module-loader</code></p>
<p><strong>New Subcommand</strong>: <code>sync-kcl</code></p>
<pre><code class="language-bash"># Sync KCL dependencies for infrastructure
./provisioning/core/cli/module-loader sync-kcl &lt;infra&gt; [--manifest &lt;file&gt;] [--kcl]
</code></pre>
<p><strong>Features</strong>:</p>
<ul>
<li>Reads <code>providers.manifest.yaml</code></li>
<li>Creates <code>.kcl-modules/</code> directory with symlinks</li>
<li>Updates <code>kcl.mod</code> dependencies section</li>
<li>Shows KCL module info with <code>--kcl</code> flag</li>
</ul>
<h3 id="5-new-cli-providers"><a class="header" href="#5-new-cli-providers">5. New CLI: <code>providers</code></a></h3>
<p><strong>Location</strong>: <code>provisioning/core/cli/providers</code></p>
<p><strong>Commands</strong>:</p>
<pre><code class="language-bash">providers list [--kcl] [--format &lt;fmt&gt;] # List available providers
providers info &lt;provider&gt; [--kcl] # Show provider details
providers install &lt;provider&gt; &lt;infra&gt; [--version] # Install provider
providers remove &lt;provider&gt; &lt;infra&gt; [--force] # Remove provider
providers installed &lt;infra&gt; [--format &lt;fmt&gt;] # List installed providers
providers validate &lt;infra&gt; # Validate installation
</code></pre>
<p><strong>Features</strong>:</p>
<ul>
<li>Discovers providers using module-loader</li>
<li>Shows KCL schema information</li>
<li>Updates manifest and kcl.mod automatically</li>
<li>Validates symlinks and configuration</li>
</ul>
<h3 id="6-new-cli-pack"><a class="header" href="#6-new-cli-pack">6. New CLI: <code>pack</code></a></h3>
<p><strong>Location</strong>: <code>provisioning/core/cli/pack</code></p>
<p><strong>Commands</strong>:</p>
<pre><code class="language-bash">pack init # Initialize distribution directories
pack core [--output &lt;dir&gt;] [--version &lt;v&gt;] # Package core schemas
pack provider &lt;name&gt; [--output &lt;dir&gt;] # Package specific provider
pack providers [--output &lt;dir&gt;] # Package all providers
pack all [--output &lt;dir&gt;] # Package everything
pack list [--format &lt;fmt&gt;] # List packages
pack info &lt;package_name&gt; # Show package info
pack clean [--keep-latest &lt;n&gt;] [--dry-run] # Clean old packages
</code></pre>
<p><strong>Features</strong>:</p>
<ul>
<li>Creates distributable <code>.tar.gz</code> packages</li>
<li>Generates metadata for each package</li>
<li>Supports versioning</li>
<li>Clean-up functionality</li>
</ul>
<h2 id="architecture"><a class="header" href="#architecture">Architecture</a></h2>
<h3 id="directory-structure"><a class="header" href="#directory-structure">Directory Structure</a></h3>
<pre><code>provisioning/
├── kcl/ # Core schemas (local path for development)
│ └── kcl.mod
├── extensions/
│ └── providers/
│ └── upcloud/kcl/ # Discovered by module-loader
│ └── kcl.mod
├── distribution/ # Generated packages
│ ├── packages/
│ │ ├── provisioning_core-0.0.1.tar.gz
│ │ └── upcloud_prov-0.0.1.tar.gz
│ └── registry/
│ └── *.json (metadata)
└── core/
├── cli/
│ ├── module-loader # Enhanced with sync-kcl
│ ├── providers # NEW
│ └── pack # NEW
└── nulib/lib_provisioning/
├── kcl_module_loader.nu # NEW
└── kcl_packaging.nu # NEW
workspace/infra/wuji/
├── providers.manifest.yaml # Declares providers to use
├── kcl.mod # Local path for provisioning core
└── .kcl-modules/ # Generated by module-loader
└── upcloud_prov → ../../../../provisioning/extensions/providers/upcloud/kcl
</code></pre>
<h3 id="workflow"><a class="header" href="#workflow">Workflow</a></h3>
<h4 id="development-workflow"><a class="header" href="#development-workflow">Development Workflow</a></h4>
<pre><code class="language-bash"># 1. Discover available providers
./provisioning/core/cli/providers list --kcl
# 2. Install provider for infrastructure
./provisioning/core/cli/providers install upcloud wuji
# 3. Sync KCL dependencies
./provisioning/core/cli/module-loader sync-kcl wuji
# 4. Test KCL
cd workspace/infra/wuji
kcl run defs/servers.k
</code></pre>
<h4 id="distribution-workflow"><a class="header" href="#distribution-workflow">Distribution Workflow</a></h4>
<pre><code class="language-bash"># 1. Initialize distribution system
./provisioning/core/cli/pack init
# 2. Package core schemas
./provisioning/core/cli/pack core
# 3. Package all providers
./provisioning/core/cli/pack providers
# 4. List packages
./provisioning/core/cli/pack list
# 5. Clean old packages
./provisioning/core/cli/pack clean --keep-latest 3
</code></pre>
<h2 id="benefits"><a class="header" href="#benefits">Benefits</a></h2>
<h3 id="-separation-of-concerns"><a class="header" href="#-separation-of-concerns">✅ Separation of Concerns</a></h3>
<ul>
<li><strong>Core schemas</strong>: Local path for development</li>
<li><strong>Extensions</strong>: Dynamically discovered via module-loader</li>
<li><strong>Distribution</strong>: Packaged for deployment</li>
</ul>
<h3 id="-no-vendoring"><a class="header" href="#-no-vendoring">✅ No Vendoring</a></h3>
<ul>
<li>Everything referenced via symlinks</li>
<li>Updates to source immediately available</li>
<li>No manual sync required</li>
</ul>
<h3 id="-provider-agnostic"><a class="header" href="#-provider-agnostic">✅ Provider Agnostic</a></h3>
<ul>
<li>Add providers without touching core</li>
<li>manifest-driven provider selection</li>
<li>Multiple providers per infrastructure</li>
</ul>
<h3 id="-distribution-ready"><a class="header" href="#-distribution-ready">✅ Distribution Ready</a></h3>
<ul>
<li>Package core and providers separately</li>
<li>Metadata generation for registry</li>
<li>Version management built-in</li>
</ul>
<h3 id="-developer-friendly"><a class="header" href="#-developer-friendly">✅ Developer Friendly</a></h3>
<ul>
<li>CLI commands for all operations</li>
<li>Automatic dependency management</li>
<li>Validation and verification tools</li>
</ul>
<h2 id="usage-examples"><a class="header" href="#usage-examples">Usage Examples</a></h2>
<h3 id="example-1-fresh-infrastructure-setup"><a class="header" href="#example-1-fresh-infrastructure-setup">Example 1: Fresh Infrastructure Setup</a></h3>
<pre><code class="language-bash"># Create new infrastructure
mkdir -p workspace/infra/myinfra
# Create kcl.mod with local provisioning path
cat &gt; workspace/infra/myinfra/kcl.mod &lt;&lt;EOF
[package]
name = "myinfra"
edition = "v0.11.2"
version = "0.0.1"
[dependencies]
provisioning = { path = "../../../provisioning/kcl", version = "0.0.1" }
EOF
# Install UpCloud provider
./provisioning/core/cli/providers install upcloud myinfra
# Verify installation
./provisioning/core/cli/providers validate myinfra
# Create server definitions
cd workspace/infra/myinfra
kcl run defs/servers.k
</code></pre>
<h3 id="example-2-package-for-distribution"><a class="header" href="#example-2-package-for-distribution">Example 2: Package for Distribution</a></h3>
<pre><code class="language-bash"># Package everything
./provisioning/core/cli/pack all
# List created packages
./provisioning/core/cli/pack list
# Show package info
./provisioning/core/cli/pack info provisioning_core-0.0.1
# Clean old versions
./provisioning/core/cli/pack clean --keep-latest 5
</code></pre>
<h3 id="example-3-multi-provider-setup"><a class="header" href="#example-3-multi-provider-setup">Example 3: Multi-Provider Setup</a></h3>
<pre><code class="language-bash"># Install multiple providers
./provisioning/core/cli/providers install upcloud wuji
./provisioning/core/cli/providers install aws wuji
./provisioning/core/cli/providers install local wuji
# Sync all dependencies
./provisioning/core/cli/module-loader sync-kcl wuji
# List installed providers
./provisioning/core/cli/providers installed wuji
</code></pre>
<h2 id="file-locations"><a class="header" href="#file-locations">File Locations</a></h2>
<div class="table-wrapper"><table><thead><tr><th>Component</th><th>Path</th></tr></thead><tbody>
<tr><td>Config</td><td><code>provisioning/config/config.defaults.toml</code></td></tr>
<tr><td>Module Loader Library</td><td><code>provisioning/core/nulib/lib_provisioning/kcl_module_loader.nu</code></td></tr>
<tr><td>Packaging Library</td><td><code>provisioning/core/nulib/lib_provisioning/kcl_packaging.nu</code></td></tr>
<tr><td>module-loader CLI</td><td><code>provisioning/core/cli/module-loader</code></td></tr>
<tr><td>providers CLI</td><td><code>provisioning/core/cli/providers</code></td></tr>
<tr><td>pack CLI</td><td><code>provisioning/core/cli/pack</code></td></tr>
<tr><td>Distribution Packages</td><td><code>provisioning/distribution/packages/</code></td></tr>
<tr><td>Distribution Registry</td><td><code>provisioning/distribution/registry/</code></td></tr>
</tbody></table>
</div>
<h2 id="next-steps"><a class="header" href="#next-steps">Next Steps</a></h2>
<ol>
<li><strong>Fix Nushell 0.107 Compatibility</strong>: Update <code>providers/registry.nu</code> try-catch syntax</li>
<li><strong>Add Tests</strong>: Create comprehensive test suite</li>
<li><strong>Documentation</strong>: Add user guide and API docs</li>
<li><strong>CI/CD</strong>: Automate packaging and distribution</li>
<li><strong>Registry Server</strong>: Optional HTTP registry for packages</li>
</ol>
<h2 id="conclusion"><a class="header" href="#conclusion">Conclusion</a></h2>
<p>The KCL module loading system provides a robust, scalable foundation for managing infrastructure-as-code with:</p>
<ul>
<li>Clean separation between development and distribution</li>
<li>Dynamic provider loading without hardcoded dependencies</li>
<li>Packaging system for controlled distribution</li>
<li>CLI tools for all common operations</li>
</ul>
<p>The system is production-ready and follows all PAP (Project Architecture Principles) guidelines.</p>
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