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policy.go
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policy.go
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// Copyright (c) 2021 Terminus, Inc.
//
// 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 custom
import (
"encoding/json"
"github.com/pkg/errors"
"github.com/erda-project/erda/modules/hepa/apipolicy"
)
type Policy struct {
apipolicy.BasePolicy
}
func (policy Policy) CreateDefaultConfig(ctx map[string]interface{}) apipolicy.PolicyDto {
dto := &PolicyDto{}
dto.Switch = false
return dto
}
func (policy Policy) UnmarshalConfig(config []byte) (apipolicy.PolicyDto, error, string) {
policyDto := &PolicyDto{}
err := json.Unmarshal(config, policyDto)
if err != nil {
return nil, errors.Wrapf(err, "json parse config failed, config:%s", config), "Invalid config"
}
ok, msg := policyDto.IsValidDto()
if !ok {
return nil, errors.Errorf("invalid policy dto, msg:%s", msg), msg
}
return policyDto, nil, ""
}
func (policy Policy) ParseConfig(dto apipolicy.PolicyDto, ctx map[string]interface{}) (apipolicy.PolicyConfig, error) {
res := apipolicy.PolicyConfig{}
policyDto, ok := dto.(*PolicyDto)
if !ok {
return res, errors.Errorf("invalid config:%+v", dto)
}
if !policyDto.Switch {
empty := ""
res.IngressAnnotation = &apipolicy.IngressAnnotation{
LocationSnippet: &empty,
}
return res, nil
}
if policyDto.Config != "" {
res.IngressAnnotation = &apipolicy.IngressAnnotation{
LocationSnippet: &policyDto.Config,
}
}
return res, nil
}
func init() {
err := apipolicy.RegisterPolicyEngine("custom", &Policy{})
if err != nil {
panic(err)
}
}