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Add domain to device mapping see related: networkservicemesh/sdk-vpp#399 Signed-off-by: Laszlo Kiraly <laszlo.kiraly@est.tech>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,22 @@ | ||
| --- | ||
| interfaces: | ||
| - name: eth1 | ||
| matches: | ||
| - labelSelector: | ||
| - via: gw0 | ||
| - name: eth2 | ||
| matches: | ||
| - labelSelector: | ||
| - via: gw1 | ||
| - labelSelector: | ||
| - via: gw2 | ||
| - name: eth3 | ||
| matches: | ||
| - labelSelector: | ||
| - via: gw2 | ||
| - name: eth4 | ||
| matches: | ||
| - labelSelector: | ||
| - via: gw2 | ||
| - labelSelector: | ||
| - via: gw3 |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,138 @@ | ||
| // Copyright (c) 2021 Nordix Foundation. | ||
| // | ||
| // 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. | ||
|
|
||
| // Package devicecfg provides service domain to device config | ||
| package devicecfg | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "strings" | ||
|
|
||
| "github.com/pkg/errors" | ||
|
|
||
| "github.com/networkservicemesh/sdk-sriov/pkg/tools/yamlhelper" | ||
| "github.com/networkservicemesh/sdk/pkg/tools/log/logruslogger" | ||
| ) | ||
|
|
||
| const linuxIfMaxLength int = 15 | ||
|
|
||
| // Config contains list of available service domains | ||
| type Config struct { | ||
| Interfaces []*Device `yaml:"interfaces"` | ||
| } | ||
|
|
||
| func (c *Config) String() string { | ||
| sb := &strings.Builder{} | ||
| _, _ = sb.WriteString("&{") | ||
|
|
||
| _, _ = sb.WriteString("Interfaces:[") | ||
| var strs []string | ||
| for _, device := range c.Interfaces { | ||
| strs = append(strs, fmt.Sprintf("%+v", device)) | ||
| } | ||
|
|
||
| _, _ = sb.WriteString(strings.Join(strs, " ")) | ||
| _, _ = sb.WriteString("]") | ||
|
|
||
| _, _ = sb.WriteString("}") | ||
| return sb.String() | ||
| } | ||
|
|
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| // Device contains an available interface name and related matches | ||
| type Device struct { | ||
| Name string `yaml:"name"` | ||
| Matches []*Selectors `yaml:"matches"` | ||
| } | ||
|
|
||
| func (iface *Device) String() string { | ||
| sb := &strings.Builder{} | ||
| _, _ = sb.WriteString("&{") | ||
|
|
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| _, _ = sb.WriteString("Name:") | ||
| _, _ = sb.WriteString(iface.Name) | ||
|
|
||
| _, _ = sb.WriteString(" Matches:[") | ||
| var strs []string | ||
| for _, selector := range iface.Matches { | ||
| strs = append(strs, fmt.Sprintf("%+v", selector)) | ||
| } | ||
|
|
||
| _, _ = sb.WriteString(strings.Join(strs, " ")) | ||
| _, _ = sb.WriteString("]") | ||
|
|
||
| _, _ = sb.WriteString("}") | ||
| return sb.String() | ||
| } | ||
|
|
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| // Selectors contains a list of selectors | ||
| type Selectors struct { | ||
| LabelSelector []*Labels `yaml:"labelSelector"` | ||
| } | ||
|
|
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| func (mh *Selectors) String() string { | ||
| sb := &strings.Builder{} | ||
| _, _ = sb.WriteString("&{") | ||
|
|
||
| _, _ = sb.WriteString("LabelSelector[") | ||
| var strs []string | ||
| for _, labelSel := range mh.LabelSelector { | ||
| strs = append(strs, fmt.Sprintf("%+v", labelSel)) | ||
| } | ||
| _, _ = sb.WriteString(strings.Join(strs, " ")) | ||
| _, _ = sb.WriteString("]") | ||
|
|
||
| _, _ = sb.WriteString("}") | ||
| return sb.String() | ||
| } | ||
|
|
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| // Labels contins the via selector | ||
| type Labels struct { | ||
| Via string `yaml:"via"` | ||
| } | ||
|
|
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| // ReadConfig reads configuration from file | ||
| func ReadConfig(ctx context.Context, configFile string) (*Config, error) { | ||
| logger := logruslogger.New(ctx) | ||
|
|
||
| cfg := &Config{} | ||
| if err := yamlhelper.UnmarshalFile(configFile, cfg); err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| for _, device := range cfg.Interfaces { | ||
| if device.Name == "" { | ||
| return nil, errors.Errorf("intrface name must be set") | ||
| } | ||
| if len(device.Name) >= linuxIfMaxLength { | ||
| return nil, errors.Errorf("too long interface name set") | ||
| } | ||
| for i := range device.Matches { | ||
| if len(device.Matches[i].LabelSelector) == 0 { | ||
| return nil, errors.Errorf("at least one label selector must be specified") | ||
| } | ||
| for j := range device.Matches[i].LabelSelector { | ||
| if device.Matches[i].LabelSelector[j].Via == "" { | ||
| return nil, errors.Errorf("%s unsupported label selector specified", device.Name) | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
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| logger.WithField("Config", "ReadConfig").Infof("unmarshalled Config: %+v", cfg) | ||
|
|
||
| return cfg, nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,109 @@ | ||
| // Copyright (c) 2021 Nordix Foundation. | ||
| // | ||
| // 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. | ||
|
|
||
| package devicecfg_test | ||
|
|
||
| import ( | ||
| "context" | ||
| "testing" | ||
|
|
||
| "github.com/stretchr/testify/require" | ||
|
|
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| "github.com/networkservicemesh/cmd-forwarder-vpp/internal/devicecfg" | ||
| ) | ||
|
|
||
| const ( | ||
| configFileName = "config.yml" | ||
| ifName1 = "eth1" | ||
| ifName2 = "eth2" | ||
| ifName3 = "eth3" | ||
| ifName4 = "eth4" | ||
| via1 = "gw0" | ||
| via2 = "gw1" | ||
| via3 = "gw2" | ||
| via4 = "gw3" | ||
| ) | ||
|
|
||
| func TestReadConfigFile(t *testing.T) { | ||
| cfg, err := devicecfg.ReadConfig(context.Background(), configFileName) | ||
| require.NoError(t, err) | ||
| require.Equal(t, &devicecfg.Config{ | ||
| Interfaces: []*devicecfg.Device{ | ||
| { | ||
| Name: ifName1, | ||
| Matches: []*devicecfg.Selectors{ | ||
| { | ||
| LabelSelector: []*devicecfg.Labels{ | ||
| { | ||
| Via: via1, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| { | ||
| Name: ifName2, | ||
| Matches: []*devicecfg.Selectors{ | ||
| { | ||
| LabelSelector: []*devicecfg.Labels{ | ||
| { | ||
| Via: via2, | ||
| }, | ||
| }, | ||
| }, | ||
| { | ||
| LabelSelector: []*devicecfg.Labels{ | ||
| { | ||
| Via: via3, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| { | ||
| Name: ifName3, | ||
| Matches: []*devicecfg.Selectors{ | ||
| { | ||
| LabelSelector: []*devicecfg.Labels{ | ||
| { | ||
| Via: via3, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| { | ||
| Name: ifName4, | ||
| Matches: []*devicecfg.Selectors{ | ||
| { | ||
| LabelSelector: []*devicecfg.Labels{ | ||
| { | ||
| Via: via3, | ||
| }, | ||
| }, | ||
| }, | ||
| { | ||
| LabelSelector: []*devicecfg.Labels{ | ||
| { | ||
| Via: via4, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }, cfg) | ||
| } |
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