feat: complete OCI registry implementation with docker push/pull support

A lightweight OCI (Open Container Initiative) registry implementation written in Go.

internal/model/model.go

@@ -0,0 +1,70 @@
+package model
+
+import (
+	"time"
+
+	"gorm.io/gorm"
+)
+
+// Repository ????
+type Repository struct {
+	ID        uint           `gorm:"primarykey" json:"id"`
+	CreatedAt time.Time      `json:"created_at"`
+	UpdatedAt time.Time      `json:"updated_at"`
+	DeletedAt gorm.DeletedAt `gorm:"index" json:"-"`
+
+	Name string `gorm:"uniqueIndex;not null" json:"name"` // ?????? "library/nginx"
+}
+
+// Blob blob ??
+type Blob struct {
+	ID        uint           `gorm:"primarykey" json:"id"`
+	CreatedAt time.Time      `json:"created_at"`
+	UpdatedAt time.Time      `json:"updated_at"`
+	DeletedAt gorm.DeletedAt `gorm:"index" json:"-"`
+
+	Digest     string `gorm:"uniqueIndex;not null" json:"digest"`      // SHA256 digest
+	Size       int64  `gorm:"not null" json:"size"`                     // ??????
+	MediaType  string `json:"media_type"`                              // ????
+	Repository string `gorm:"index" json:"repository"`                 // ???????????????
+}
+
+// Manifest manifest ??
+type Manifest struct {
+	ID        uint           `gorm:"primarykey" json:"id"`
+	CreatedAt time.Time      `json:"created_at"`
+	UpdatedAt time.Time      `json:"updated_at"`
+	DeletedAt gorm.DeletedAt `gorm:"index" json:"-"`
+
+	Repository string `gorm:"index;not null" json:"repository"` // ????
+	Tag         string `gorm:"index;not null" json:"tag"`        // tag ??
+	Digest      string `gorm:"uniqueIndex;not null" json:"digest"` // manifest digest
+	MediaType   string `json:"media_type"`                       // ????
+	Size        int64  `gorm:"not null" json:"size"`              // manifest ??
+	Content     []byte `gorm:"type:blob" json:"-"`                // manifest ???JSON?
+}
+
+// Tag tag ??????????
+type Tag struct {
+	ID        uint           `gorm:"primarykey" json:"id"`
+	CreatedAt time.Time      `json:"created_at"`
+	UpdatedAt time.Time      `json:"updated_at"`
+	DeletedAt gorm.DeletedAt `gorm:"index" json:"-"`
+
+	Repository string `gorm:"index;not null" json:"repository"` // ????
+	Tag         string `gorm:"index;not null" json:"tag"`        // tag ??
+	Digest      string `gorm:"not null" json:"digest"`          // ??? manifest digest
+}
+
+// BlobUpload ????? blob ??
+type BlobUpload struct {
+	ID        uint           `gorm:"primarykey" json:"id"`
+	CreatedAt time.Time      `json:"created_at"`
+	UpdatedAt time.Time      `json:"updated_at"`
+	DeletedAt gorm.DeletedAt `gorm:"index" json:"-"`
+
+	UUID       string `gorm:"uniqueIndex;not null" json:"uuid"`       // ???? UUID
+	Repository string `gorm:"index;not null" json:"repository"`      // ????
+	Path       string `gorm:"not null" json:"path"`                   // ??????
+	Size       int64  `gorm:"default:0" json:"size"`                  // ?????
+}