Initial commit: Orchard content-addressable storage system

- Go server with Gin framework - PostgreSQL for metadata storage - MinIO/S3 for artifact storage with SHA256 content addressing - REST API for grove/tree/fruit operations - Web UI for managing artifacts - Docker Compose setup for local development
2025-12-04 10:14:49 -06:00
commit f8e9650de3
19 changed files with 3531 additions and 0 deletions
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -0,0 +1,104 @@
+package config
+
+import (
+	"strings"
+
+	"github.com/spf13/viper"
+)
+
+type Config struct {
+	Server   ServerConfig   `mapstructure:"server"`
+	Database DatabaseConfig `mapstructure:"database"`
+	S3       S3Config       `mapstructure:"s3"`
+	Redis    RedisConfig    `mapstructure:"redis"`
+}
+
+type ServerConfig struct {
+	Host string `mapstructure:"host"`
+	Port int    `mapstructure:"port"`
+}
+
+type DatabaseConfig struct {
+	Host     string `mapstructure:"host"`
+	Port     int    `mapstructure:"port"`
+	User     string `mapstructure:"user"`
+	Password string `mapstructure:"password"`
+	DBName   string `mapstructure:"dbname"`
+	SSLMode  string `mapstructure:"sslmode"`
+}
+
+type S3Config struct {
+	Endpoint        string `mapstructure:"endpoint"`
+	Region          string `mapstructure:"region"`
+	Bucket          string `mapstructure:"bucket"`
+	AccessKeyID     string `mapstructure:"access_key_id"`
+	SecretAccessKey string `mapstructure:"secret_access_key"`
+	UsePathStyle    bool   `mapstructure:"use_path_style"`
+}
+
+type RedisConfig struct {
+	Host     string `mapstructure:"host"`
+	Port     int    `mapstructure:"port"`
+	Password string `mapstructure:"password"`
+	DB       int    `mapstructure:"db"`
+}
+
+func Load() (*Config, error) {
+	viper.SetConfigName("config")
+	viper.SetConfigType("yaml")
+	viper.AddConfigPath(".")
+	viper.AddConfigPath("/etc/orchard")
+
+	// Environment variable overrides
+	viper.SetEnvPrefix("ORCHARD")
+	viper.AutomaticEnv()
+	viper.SetEnvKeyReplacer(strings.NewReplacer(".", "_"))
+
+	// Bind environment variables explicitly for nested config
+	viper.BindEnv("server.host", "ORCHARD_SERVER_HOST")
+	viper.BindEnv("server.port", "ORCHARD_SERVER_PORT")
+	viper.BindEnv("database.host", "ORCHARD_DATABASE_HOST")
+	viper.BindEnv("database.port", "ORCHARD_DATABASE_PORT")
+	viper.BindEnv("database.user", "ORCHARD_DATABASE_USER")
+	viper.BindEnv("database.password", "ORCHARD_DATABASE_PASSWORD")
+	viper.BindEnv("database.dbname", "ORCHARD_DATABASE_DBNAME")
+	viper.BindEnv("database.sslmode", "ORCHARD_DATABASE_SSLMODE")
+	viper.BindEnv("s3.endpoint", "ORCHARD_S3_ENDPOINT")
+	viper.BindEnv("s3.region", "ORCHARD_S3_REGION")
+	viper.BindEnv("s3.bucket", "ORCHARD_S3_BUCKET")
+	viper.BindEnv("s3.access_key_id", "ORCHARD_S3_ACCESS_KEY_ID")
+	viper.BindEnv("s3.secret_access_key", "ORCHARD_S3_SECRET_ACCESS_KEY")
+	viper.BindEnv("s3.use_path_style", "ORCHARD_S3_USE_PATH_STYLE")
+	viper.BindEnv("redis.host", "ORCHARD_REDIS_HOST")
+	viper.BindEnv("redis.port", "ORCHARD_REDIS_PORT")
+	viper.BindEnv("redis.password", "ORCHARD_REDIS_PASSWORD")
+	viper.BindEnv("redis.db", "ORCHARD_REDIS_DB")
+
+	// Defaults
+	viper.SetDefault("server.host", "0.0.0.0")
+	viper.SetDefault("server.port", 8080)
+	viper.SetDefault("database.host", "localhost")
+	viper.SetDefault("database.port", 5432)
+	viper.SetDefault("database.user", "orchard")
+	viper.SetDefault("database.dbname", "orchard")
+	viper.SetDefault("database.sslmode", "disable")
+	viper.SetDefault("s3.region", "us-east-1")
+	viper.SetDefault("s3.bucket", "orchard-artifacts")
+	viper.SetDefault("s3.use_path_style", true)
+	viper.SetDefault("redis.host", "localhost")
+	viper.SetDefault("redis.port", 6379)
+	viper.SetDefault("redis.db", 0)
+
+	if err := viper.ReadInConfig(); err != nil {
+		if _, ok := err.(viper.ConfigFileNotFoundError); !ok {
+			return nil, err
+		}
+	}
+
+	var cfg Config
+	if err := viper.Unmarshal(&cfg); err != nil {
+		return nil, err
+	}
+
+	return &cfg, nil
+}