feat: 接入 Database 三资源 API 与分层绑定协调
确定单库单账号、集群级 Database、资源侧先写绑定和凭据定位合同。领域层承载纯规则，service 协調流程，Kubernetes adapter 负责资源呈现与版本保护。 验证：全量 make test、三轮 race、真实 API server 并发与重启补写、最小 RBAC/watch、lint 和文档检查通过。供应、凭据交付及删除清理尚未实现，保留 DeletionPending/finalizer 边界。
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package application
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import (
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"context"
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"errors"
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"reflect"
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"testing"
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"git.ddupan.top/panxiao81/ayatori/internal/database/domain/binding"
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)
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const (
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bindingReadTenant = "tenant"
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bindingBegin = "begin"
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bindingReadInstance = "instance"
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bindingCreate = "create"
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bindingRecordInstance = "record-instance"
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bindingWriteResource = "bind"
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bindingDatabaseOperation = "database"
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bindingTestNamespace = "apps"
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bindingTestName = "app"
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bindingTestInstance = "shared"
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)
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func TestBindingServiceOrder(t *testing.T) {
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resources := bindingFixture()
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service := BindingService{Resources: resources}
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result, err := service.Reconcile(t.Context(), bindingTestNamespace, bindingTestName)
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if err != nil {
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t.Fatal(err)
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}
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want := []string{bindingReadTenant, bindingBegin, bindingDatabaseOperation, bindingReadInstance, bindingCreate, bindingRecordInstance, bindingWriteResource, bindingReadTenant, bindingDatabaseOperation}
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if !reflect.DeepEqual(resources.calls, want) {
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t.Fatalf("协调顺序 = %v, want %v", resources.calls, want)
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}
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if result.Status.Phase != binding.Bound || result.Status.Database == nil || result.Status.Database.UID != "database-uid" {
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t.Fatalf("绑定结果不符: %+v", result.Status)
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}
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if resources.tenant.Phase != binding.Binding || resources.tenant.Database != nil {
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t.Fatal("service 只能返回待呈现结果，不能提前写申请侧绑定")
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}
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if resources.database.Tenant == nil || *resources.database.Tenant != resources.tenant.Identity {
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t.Fatal("返回完成结果之前必须写入资源侧绑定")
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}
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}
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func TestBindingServiceStopsOnIOFailure(t *testing.T) {
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for _, operation := range []string{bindingReadTenant, bindingBegin, bindingDatabaseOperation, bindingReadInstance, bindingCreate, bindingRecordInstance, bindingWriteResource} {
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t.Run(operation, func(t *testing.T) {
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resources := bindingFixture()
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resources.failAt = operation
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result, err := (BindingService{Resources: resources}).Reconcile(t.Context(), bindingTestNamespace, bindingTestName)
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if !errors.Is(err, errBindingTest) || result.Status.Database != nil {
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t.Fatalf("IO 失败不应被转换为绑定成功: result=%+v, err=%v", result, err)
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}
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if resources.calls[len(resources.calls)-1] != operation {
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t.Fatalf("失败后继续执行了操作: %v", resources.calls)
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}
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})
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}
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}
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func TestBindingServiceDoesNotWriteWhenDeletingOrInvalid(t *testing.T) {
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for _, deleting := range []bool{false, true} {
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resources := bindingFixture()
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resources.tenant.Deleting = deleting
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resources.tenant.Request = binding.Request{}
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result, err := (BindingService{Resources: resources}).Reconcile(t.Context(), bindingTestNamespace, bindingTestName)
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if err != nil || len(resources.calls) != 1 || result.Status.Database != nil {
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t.Fatalf("删除或无效申请不应触及资源: calls=%v, err=%v", resources.calls, err)
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}
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want := "InvalidRequest"
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if deleting {
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want = "DeletionPending"
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}
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if result.Status.Reason != want {
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t.Fatalf("Reason = %s, want %s", result.Status.Reason, want)
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}
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}
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}
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func TestBindingServiceConfirmsIdentityAgain(t *testing.T) {
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resources := bindingFixture()
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resources.replaceOnReadback = true
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result, err := (BindingService{Resources: resources}).Reconcile(t.Context(), bindingTestNamespace, bindingTestName)
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if err != nil {
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t.Fatal(err)
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}
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if result.Status.Reason != binding.Conflict || result.Status.Database != nil {
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t.Fatal("资源侧写入后发生身份变化时不能返回绑定完成")
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}
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}
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// 这里只记录用例操作，不模拟 Kubernetes 校验；真实 IO 契约由 controller envtest 覆盖。
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type bindingTestResources struct {
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tenant *BindingTenant
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database *BindingDatabase
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instance *binding.Instance
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calls []string
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failAt string
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replaceOnReadback bool
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bound bool
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}
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var errBindingTest = errors.New("injected resource operation failure")
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func bindingFixture() *bindingTestResources {
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tenant := &BindingTenant{Generation: 1}
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tenant.Tenant = binding.Tenant{
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Identity: binding.TenantIdentity{Namespace: bindingTestNamespace, Name: bindingTestName, UID: "tenant-uid"},
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Request: binding.Request{Provision: &binding.ProvisionRequest{Instance: bindingTestInstance}},
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}
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return &bindingTestResources{
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tenant: tenant,
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instance: &binding.Instance{Identity: binding.Identity{Name: bindingTestInstance, UID: "instance-uid"}, Ready: true},
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}
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}
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func (r *bindingTestResources) record(operation string) error {
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r.calls = append(r.calls, operation)
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if r.failAt == operation {
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return errBindingTest
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}
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return nil
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}
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func (r *bindingTestResources) Tenant(context.Context, string, string) (*BindingTenant, error) {
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return r.tenant, r.record(bindingReadTenant)
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}
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func (r *bindingTestResources) Database(context.Context, string) (*BindingDatabase, error) {
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if r.bound && r.replaceOnReadback {
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replaced := *r.database
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replaced.Identity.UID = "replacement"
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return &replaced, r.record(bindingDatabaseOperation)
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}
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return r.database, r.record(bindingDatabaseOperation)
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}
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func (r *bindingTestResources) Instance(context.Context, string) (*binding.Instance, error) {
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return r.instance, r.record(bindingReadInstance)
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}
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func (r *bindingTestResources) BeginBinding(_ context.Context, tenant *BindingTenant, status *BindingStatus) (*BindingTenant, error) {
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if err := r.record(bindingBegin); err != nil {
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return nil, err
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}
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if status != nil {
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r.tenant.Phase = status.Phase
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}
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return tenant, nil
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}
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func (r *bindingTestResources) CreateDatabase(_ context.Context, target binding.Target, tenant binding.TenantIdentity) (*BindingDatabase, error) {
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if err := r.record(bindingCreate); err != nil {
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return nil, err
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}
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r.database = &BindingDatabase{}
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r.database.Database = binding.Database{
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Identity: binding.Identity{Name: target.Name, UID: "database-uid"}, Tenant: &tenant,
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Instance: target.Provision.Instance, Name: target.Provision.Database, LoginRole: target.Provision.LoginRole, Source: "Provision",
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}
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return r.database, nil
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}
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func (r *bindingTestResources) RecordInstance(_ context.Context, database *BindingDatabase, uid string) (*BindingDatabase, error) {
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if err := r.record(bindingRecordInstance); err != nil {
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return nil, err
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}
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database.InstanceUID = uid
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return database, nil
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}
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func (r *bindingTestResources) BindDatabase(_ context.Context, database *BindingDatabase, tenant binding.TenantIdentity) (*BindingDatabase, error) {
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if err := r.record(bindingWriteResource); err != nil {
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return nil, err
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}
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database.Tenant = &tenant
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r.bound = true
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return database, nil
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}
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