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// SPDX-License-Identifier: GPL-3.0-or-later
package dockerhub
import (
_ "embed"
"errors"
"time"
"github.com/netdata/netdata/go/go.d.plugin/agent/module"
"github.com/netdata/netdata/go/go.d.plugin/pkg/web"
)
//go:embed "config_schema.json"
var configSchema string
func init() {
module.Register("dockerhub", module.Creator{
JobConfigSchema: configSchema,
Defaults: module.Defaults{
UpdateEvery: 5,
},
Create: func() module.Module { return New() },
})
}
func New() *DockerHub {
return &DockerHub{
Config: Config{
HTTP: web.HTTP{
Request: web.Request{
URL: "https://hub.docker.com/v2/repositories",
},
Client: web.Client{
Timeout: web.Duration(time.Second * 2),
},
},
},
}
}
type Config struct {
web.HTTP `yaml:",inline" json:""`
UpdateEvery int `yaml:"update_every" json:"update_every"`
Repositories []string `yaml:"repositories" json:"repositories"`
}
type DockerHub struct {
module.Base
Config `yaml:",inline" json:""`
client *apiClient
}
func (dh *DockerHub) Configuration() any {
return dh.Config
}
func (dh *DockerHub) Init() error {
if err := dh.validateConfig(); err != nil {
dh.Errorf("config validation: %v", err)
return err
}
client, err := dh.initApiClient()
if err != nil {
dh.Error(err)
return err
}
dh.client = client
return nil
}
func (dh *DockerHub) Check() error {
mx, err := dh.collect()
if err != nil {
dh.Error(err)
return err
}
if len(mx) == 0 {
return errors.New("no metrics collected")
}
return nil
}
func (dh *DockerHub) Charts() *Charts {
cs := charts.Copy()
addReposToCharts(dh.Repositories, cs)
return cs
}
func (dh *DockerHub) Collect() map[string]int64 {
mx, err := dh.collect()
if err != nil {
dh.Error(err)
return nil
}
return mx
}
func (dh *DockerHub) Cleanup() {
if dh.client != nil && dh.client.httpClient != nil {
dh.client.httpClient.CloseIdleConnections()
}
}
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