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fix: apply changes for distributed vl3 dns after manual testing (netw…
…orkservicemesh#1315) * apply vl3dns fixes Signed-off-by: Denis Tingaikin <denis.tingajkin@xored.com> * fix linter issues Signed-off-by: denis-tingaikin <denis.tingajkin@xored.com> * handle corner cases Signed-off-by: Denis Tingaikin <denis.tingajkin@xored.com> Signed-off-by: anastasia.malysheva <anastasia.malysheva@xored.com>
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84 changes: 84 additions & 0 deletions
84
pkg/networkservice/connectioncontext/dnscontext/vl3dns/client.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,84 @@ | ||
| // Copyright (c) 2022 Cisco and/or its affiliates. | ||
| // | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at: | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
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| package vl3dns | ||
|
|
||
| import ( | ||
| "context" | ||
| "net" | ||
|
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| "github.com/golang/protobuf/ptypes/empty" | ||
| "github.com/networkservicemesh/api/pkg/api/networkservice" | ||
| "google.golang.org/grpc" | ||
|
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| "github.com/networkservicemesh/sdk/pkg/networkservice/core/next" | ||
| ) | ||
|
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| type vl3DNSClient struct { | ||
| dnsServerIP net.IP | ||
| dnsConfigs *Map | ||
| } | ||
|
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| // NewClient - returns a new null client that does nothing but call next.Client(ctx).{Request/Close} and return the result | ||
| // This is very useful in testing | ||
| func NewClient(dnsServerIP net.IP, dnsConfigs *Map) networkservice.NetworkServiceClient { | ||
| return &vl3DNSClient{ | ||
| dnsServerIP: dnsServerIP, | ||
| dnsConfigs: dnsConfigs, | ||
| } | ||
| } | ||
|
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| func (n *vl3DNSClient) Request(ctx context.Context, request *networkservice.NetworkServiceRequest, opts ...grpc.CallOption) (*networkservice.Connection, error) { | ||
| if request.GetConnection() == nil { | ||
| request.Connection = new(networkservice.Connection) | ||
| } | ||
| if request.GetConnection().GetContext() == nil { | ||
| request.GetConnection().Context = new(networkservice.ConnectionContext) | ||
| } | ||
| if request.GetConnection().GetContext().GetDnsContext() == nil { | ||
| request.GetConnection().GetContext().DnsContext = new(networkservice.DNSContext) | ||
| } | ||
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| request.GetConnection().GetContext().GetDnsContext().Configs = []*networkservice.DNSConfig{ | ||
| { | ||
| DnsServerIps: []string{n.dnsServerIP.String()}, | ||
| }, | ||
| } | ||
| resp, err := next.Client(ctx).Request(ctx, request, opts...) | ||
|
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| if err == nil { | ||
| for _, config := range resp.GetContext().GetDnsContext().GetConfigs() { | ||
| var skip = false | ||
| for _, ip := range config.DnsServerIps { | ||
| if ip == n.dnsServerIP.String() { | ||
| skip = true | ||
| break | ||
| } | ||
| } | ||
| if skip { | ||
| continue | ||
| } | ||
| n.dnsConfigs.Store(resp.GetId(), config) | ||
| } | ||
| } | ||
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| return resp, err | ||
| } | ||
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| func (n *vl3DNSClient) Close(ctx context.Context, conn *networkservice.Connection, opts ...grpc.CallOption) (*empty.Empty, error) { | ||
| n.dnsConfigs.Delete(conn.GetId()) | ||
| return next.Client(ctx).Close(ctx, conn, opts...) | ||
| } |
26 changes: 26 additions & 0 deletions
26
pkg/networkservice/connectioncontext/dnscontext/vl3dns/gen.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,26 @@ | ||
| // Copyright (c) 2022 Cisco and/or its affiliates. | ||
| // | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at: | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
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| package vl3dns | ||
|
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| import ( | ||
| "sync" | ||
| ) | ||
|
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| //go:generate go-syncmap -output map.gen.go -type Map<string,*github.com/networkservicemesh/api/pkg/api/networkservice.DNSConfig> | ||
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| // Map - sync.Map with key == string and value == networkservice.DNSConfig | ||
| type Map sync.Map |
75 changes: 75 additions & 0 deletions
75
pkg/networkservice/connectioncontext/dnscontext/vl3dns/map.gen.go
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