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config.go
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config.go
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// Licensed to Elasticsearch B.V. under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. Elasticsearch B.V. licenses this file to you 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 hints
import conf "github.com/elastic/elastic-agent-libs/config"
type config struct {
Key string `config:"key"`
DefaultConfig *conf.C `config:"default_config"`
}
func defaultConfig() config {
defaultCfgRaw := map[string]interface{}{
"type": "container",
"paths": []string{
// To be able to use this builder with CRI-O replace paths with:
// /var/log/pods/${data.kubernetes.pod.uid}/${data.kubernetes.container.name}/*.log
"/var/lib/docker/containers/${data.container.id}/*-json.log",
},
}
defaultCfg, _ := conf.NewConfigFrom(defaultCfgRaw)
return config{
Key: "logs",
DefaultConfig: defaultCfg,
}
}
func (c *config) Unpack(from *conf.C) error {
tmpConfig := struct {
Key string `config:"key"`
}{
Key: c.Key,
}
if err := from.Unpack(&tmpConfig); err != nil {
return err
}
if config, err := from.Child("default_config", -1); err == nil {
fields := config.GetFields()
if len(fields) == 1 && fields[0] == "enabled" {
// only enabling/disabling default config:
if err := c.DefaultConfig.Merge(config); err != nil {
return nil
}
} else {
// full config provided, discard default. It must be a clone of the
// given config otherwise it could be updated across multiple inputs.
c.DefaultConfig = conf.MustNewConfigFrom(config)
}
}
c.Key = tmpConfig.Key
return nil
}