Initial commit for Controller Scaffolder

tools/scaffolder/LICENSE

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tools/scaffolder/Makefile

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+
+build:
+	go build -o bin/ako-controller-scaffolder cmd/main.go
+
+generate:
+	controller-gen object:headerFile="hack/boilerplate.go.txt" paths="./pkg/api/..."

tools/scaffolder/README.md

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+# Atlas Controller Scaffolder
+
+A tool to generate Kubernetes controllers for MongoDB Atlas resources based on CRD configurations.
+
+> [!WARNING]
+> This is the experimental tool. Bugs and issues are still present
+
+## Overview
+
+This scaffolder generates Kubernetes controllers that follow the MongoDB Atlas Kubernetes operator patterns, including:
+
+- **State machine-based controllers** with proper lifecycle management
+- **Translation layers** for Atlas SDK integration
+- **Service interfaces** with appropriate Atlas API mappings
+- **License headers** and proper package structure
+
+## Dependencies
+
+### Required Local Repositories
+
+The following repositories must be available locally in the parent directory:
+
+```
+work/
+├── atlas-controller-scaffolder/    # This tool
+├── atlas2crd/                      # Config definitions
+└── mongodb-atlas-kubernetes/       # Target operator
+```
+
+### Setup
+
+1. **Clone dependencies:**
+
+   ```bash
+   cd ../
+   git clone https://github.com/mongodb-atlas-kubernetes/atlas2crd
+   git clone https://github.com/mongodb/mongodb-atlas-kubernetes
+   ```
+
+2. **Replace the crd2go dependency**
+   Make sure the crd2go dependency is pointing to the local copy. In your `go.mod` file:
+
+   ```bash
+   replace github.com/josvazg/crd2go => ../crd2go
+   ```
+
+3. **Generate CRD types**
+    Use `crd2go` tool to generate go types for CRDs:
+
+    ```bash
+    cd ./crd2go/
+    go build -o ./crd2go ./cmd/crd2go/main.go
+    ./crd2go -input=./pkg/crd2go/samples/crds.yaml -output=../atlas-controller-scaffolder/pkg/api/v1
+    ```
+
+4. **Build the scaffolder:**
+   ```bash
+   cd ../atlas-controller-scaffolder
+   go build -o ./bin/ako-controller-scaffolder ./cmd/main.go
+   ```
+
+
+## Usage
+
+### List Available CRDs
+
+```bash
+./bin/ako-controller-scaffolder --config ../atlas2crd/config.yaml --list
+```
+
+### Generate Controller
+
+```bash
+./bin/ako-controller-scaffolder --config ../atlas2crd/config.yaml --crd <CRD_KIND>
+```
+
+**Examples:**
+
+```bash
+# Generate Team controller
+./bin/ako-controller-scaffolder --config ../atlas2crd/config.yaml --crd Team
+
+# Generate Organization controller
+./bin/ako-controller-scaffolder --config ../atlas2crd/config.yaml --crd Organization
+
+# Generate DatabaseUser controller
+./bin/ako-controller-scaffolder --config ../atlas2crd/config.yaml --crd DatabaseUser
+```
+
+### Show Available CRDs 
+
+If you don't specify a CRD, the tool will show you all available options:
+
+```bash
+./bin/ako-controller-scaffolder --config ../atlas2crd/config.yaml
+```
+
+## Generated Structure
+
+The tool generates controllers in the MongoDB Atlas Kubernetes operator directory:
+
+```
+../mongodb-atlas-kubernetes/internal/
+├── controller/{crd_name}/
+│   ├── {crd_name}_controller.go    # Main controller with reconciler
+│   └── handler.go                  # State handlers and setup
+└── translation/{crd_name}/
+    ├── {crd_name}.go              # Translation types
+    └── service.go                 # Atlas SDK service interface
+```
+
+Generated controllers support all specified CRD versions. Translation layers stabs are generated per CRD version, using the Atlas SDK specified in the atlas2crd config file
+
+## Features
+
+- **Dynamic API Mapping** - Automatically selects correct Atlas SDK API
+- **State Machine Pattern** - Follows existing controller patterns
+- **Translation Layer** - Converts between Kubernetes and Atlas types
+- **License Headers** - Proper MongoDB license in all files
+- **RBAC Annotations** - Kubebuilder RBAC markers included
+- **Package Structure** - Consistent with existing codebase
+
+## Available CRDs
+
+Run with `--list` to see all available CRDs, including:
+
+- Team, Organization, DatabaseUser
+- Cluster, FlexCluster, SearchIndex
+- BackupCompliancePolicy, DataFederation
+- NetworkPeeringConnection, CustomRole
+- And many more...
+
+## Development
+
+The scaffolder uses:
+
+- **[Jennifer](https://github.com/dave/jennifer)** for Go code generation
+- **YAML parsing** for atlas2crd config files
+- **Atlas SDK mapping** for correct API selection

tools/scaffolder/cmd/main.go

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+package main
+
+import (
+	"fmt"
+	"os"
+	"tools/scaffolder/internal/generate"
+
+	"github.com/spf13/cobra"
+)
+
+var (
+	configPath string
+	crdKind    string
+	listCRDs   bool
+)
+
+func main() {
+	rootCmd := &cobra.Command{
+		Use:   "ako-controller-scaffolder",
+		Short: "Generate Kubernetes controllers for MongoDB Atlas CRDs",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			if configPath == "" {
+				return fmt.Errorf("--config is required")
+			}
+
+			if listCRDs {
+				return generate.PrintCRDs(configPath)
+			}
+
+			return generate.FromConfig(configPath, crdKind)
+		},
+	}
+
+	rootCmd.Flags().StringVar(&configPath, "config", "", "Path to atlas2crd config file (required)")
+	rootCmd.Flags().StringVar(&crdKind, "crd", "", "CRD kind to generate controller for")
+	rootCmd.Flags().BoolVar(&listCRDs, "list", false, "List available CRDs from config file")
+
+	if err := rootCmd.Execute(); err != nil {
+		fmt.Fprintf(os.Stderr, "Error: %v\n", err)
+		os.Exit(1)
+	}
+}