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Move codes to pkg (#46)
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223
pkg/ingress/mcp/generator.go
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223
pkg/ingress/mcp/generator.go
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@@ -0,0 +1,223 @@
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// Copyright (c) 2022 Alibaba Group Holding Ltd.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package mcp
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import (
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"path"
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"github.com/gogo/protobuf/types"
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"github.com/golang/protobuf/ptypes"
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"github.com/golang/protobuf/ptypes/any"
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extensions "istio.io/api/extensions/v1alpha1"
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mcp "istio.io/api/mcp/v1alpha1"
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networking "istio.io/api/networking/v1alpha3"
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"istio.io/istio/pilot/pkg/model"
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"istio.io/istio/pilot/pkg/xds"
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)
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type VirtualServiceGenerator struct {
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Server *xds.DiscoveryServer
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}
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func (c VirtualServiceGenerator) Generate(proxy *model.Proxy, push *model.PushContext, w *model.WatchedResource,
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updates *model.PushRequest) ([]*any.Any, model.XdsLogDetails, error) {
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resources := make([]*any.Any, 0)
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configs := push.AllVirtualServices
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for _, config := range configs {
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body, err := types.MarshalAny(config.Spec.(*networking.VirtualService))
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if err != nil {
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return nil, model.DefaultXdsLogDetails, err
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}
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createTime, err := types.TimestampProto(config.CreationTimestamp)
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if err != nil {
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return nil, model.DefaultXdsLogDetails, err
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}
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resource := &mcp.Resource{
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Body: body,
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Metadata: &mcp.Metadata{
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Name: path.Join(config.Namespace, config.Name),
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CreateTime: createTime,
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},
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}
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mcpAny, err := ptypes.MarshalAny(resource)
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if err != nil {
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return nil, model.DefaultXdsLogDetails, err
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}
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resources = append(resources, mcpAny)
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}
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return resources, model.DefaultXdsLogDetails, nil
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}
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func (c VirtualServiceGenerator) GenerateDeltas(proxy *model.Proxy, push *model.PushContext, updates *model.PushRequest,
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w *model.WatchedResource) ([]*any.Any, []string, model.XdsLogDetails, bool, error) {
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// TODO: delta implement
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return nil, nil, model.DefaultXdsLogDetails, false, nil
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}
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type DestinationRuleGenerator struct {
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Server *xds.DiscoveryServer
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}
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func (c DestinationRuleGenerator) Generate(proxy *model.Proxy, push *model.PushContext, w *model.WatchedResource,
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updates *model.PushRequest) ([]*any.Any, model.XdsLogDetails, error) {
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resources := make([]*any.Any, 0)
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configs := push.AllDestinationRules
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for _, config := range configs {
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body, err := types.MarshalAny(config.Spec.(*networking.DestinationRule))
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if err != nil {
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return nil, model.DefaultXdsLogDetails, err
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}
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createTime, err := types.TimestampProto(config.CreationTimestamp)
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if err != nil {
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return nil, model.DefaultXdsLogDetails, err
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}
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resource := &mcp.Resource{
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Body: body,
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Metadata: &mcp.Metadata{
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Name: path.Join(config.Namespace, config.Name),
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CreateTime: createTime,
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},
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}
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mcpAny, err := ptypes.MarshalAny(resource)
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if err != nil {
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return nil, model.DefaultXdsLogDetails, err
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}
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resources = append(resources, mcpAny)
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}
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return resources, model.DefaultXdsLogDetails, nil
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}
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func (c DestinationRuleGenerator) GenerateDeltas(proxy *model.Proxy, push *model.PushContext, updates *model.PushRequest,
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w *model.WatchedResource) ([]*any.Any, []string, model.XdsLogDetails, bool, error) {
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// TODO: delta implement
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return nil, nil, model.DefaultXdsLogDetails, false, nil
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}
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type EnvoyFilterGenerator struct {
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Server *xds.DiscoveryServer
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}
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func (c EnvoyFilterGenerator) Generate(proxy *model.Proxy, push *model.PushContext, w *model.WatchedResource,
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updates *model.PushRequest) ([]*any.Any, model.XdsLogDetails, error) {
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resources := make([]*any.Any, 0)
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configs := push.AllEnvoyFilters
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for _, config := range configs {
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body, err := types.MarshalAny(config.Spec.(*networking.EnvoyFilter))
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if err != nil {
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return nil, model.DefaultXdsLogDetails, err
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}
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createTime, err := types.TimestampProto(config.CreationTimestamp)
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if err != nil {
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return nil, model.DefaultXdsLogDetails, err
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}
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resource := &mcp.Resource{
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Body: body,
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Metadata: &mcp.Metadata{
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Name: path.Join(config.Namespace, config.Name),
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CreateTime: createTime,
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},
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}
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mcpAny, err := ptypes.MarshalAny(resource)
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if err != nil {
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return nil, model.DefaultXdsLogDetails, err
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}
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resources = append(resources, mcpAny)
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}
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return resources, model.DefaultXdsLogDetails, nil
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}
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func (c EnvoyFilterGenerator) GenerateDeltas(proxy *model.Proxy, push *model.PushContext, updates *model.PushRequest,
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w *model.WatchedResource) ([]*any.Any, []string, model.XdsLogDetails, bool, error) {
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// TODO: delta implement
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return nil, nil, model.DefaultXdsLogDetails, false, nil
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}
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type GatewayGenerator struct {
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Server *xds.DiscoveryServer
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}
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func (c GatewayGenerator) Generate(proxy *model.Proxy, push *model.PushContext, w *model.WatchedResource,
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updates *model.PushRequest) ([]*any.Any, model.XdsLogDetails, error) {
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resources := make([]*any.Any, 0)
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configs := push.AllGateways
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for _, config := range configs {
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body, err := types.MarshalAny(config.Spec.(*networking.Gateway))
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if err != nil {
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return nil, model.DefaultXdsLogDetails, err
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}
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createTime, err := types.TimestampProto(config.CreationTimestamp)
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if err != nil {
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return nil, model.DefaultXdsLogDetails, err
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}
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resource := &mcp.Resource{
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Body: body,
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Metadata: &mcp.Metadata{
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Name: path.Join(config.Namespace, config.Name),
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CreateTime: createTime,
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},
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}
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mcpAny, err := ptypes.MarshalAny(resource)
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if err != nil {
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return nil, model.DefaultXdsLogDetails, err
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}
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resources = append(resources, mcpAny)
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}
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return resources, model.DefaultXdsLogDetails, nil
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}
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func (c GatewayGenerator) GenerateDeltas(proxy *model.Proxy, push *model.PushContext, updates *model.PushRequest,
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w *model.WatchedResource) ([]*any.Any, []string, model.XdsLogDetails, bool, error) {
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// TODO: delta implement
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return nil, nil, model.DefaultXdsLogDetails, false, nil
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}
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type WasmpluginGenerator struct {
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Server *xds.DiscoveryServer
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}
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func (c WasmpluginGenerator) Generate(proxy *model.Proxy, push *model.PushContext, w *model.WatchedResource,
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updates *model.PushRequest) ([]*any.Any, model.XdsLogDetails, error) {
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resources := make([]*any.Any, 0)
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configs := push.AllWasmplugins
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for _, config := range configs {
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body, err := types.MarshalAny(config.Spec.(*extensions.WasmPlugin))
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if err != nil {
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return nil, model.DefaultXdsLogDetails, err
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}
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createTime, err := types.TimestampProto(config.CreationTimestamp)
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if err != nil {
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return nil, model.DefaultXdsLogDetails, err
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}
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resource := &mcp.Resource{
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Body: body,
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Metadata: &mcp.Metadata{
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Name: path.Join(config.Namespace, config.Name),
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CreateTime: createTime,
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},
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}
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mcpAny, err := ptypes.MarshalAny(resource)
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if err != nil {
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return nil, model.DefaultXdsLogDetails, err
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}
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resources = append(resources, mcpAny)
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}
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return resources, model.DefaultXdsLogDetails, nil
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}
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func (c WasmpluginGenerator) GenerateDeltas(proxy *model.Proxy, push *model.PushContext, updates *model.PushRequest,
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w *model.WatchedResource) ([]*any.Any, []string, model.XdsLogDetails, bool, error) {
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// TODO: delta implement
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return nil, nil, model.DefaultXdsLogDetails, false, nil
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}
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