105 lines
2.5 KiB
Go
105 lines
2.5 KiB
Go
package aggregator
|
|
|
|
import (
|
|
"encoding/json"
|
|
|
|
"github.com/containous/traefik/pkg/config"
|
|
"github.com/containous/traefik/pkg/config/static"
|
|
"github.com/containous/traefik/pkg/log"
|
|
"github.com/containous/traefik/pkg/provider"
|
|
"github.com/containous/traefik/pkg/provider/file"
|
|
"github.com/containous/traefik/pkg/safe"
|
|
)
|
|
|
|
// ProviderAggregator aggregates providers.
|
|
type ProviderAggregator struct {
|
|
fileProvider *file.Provider
|
|
providers []provider.Provider
|
|
}
|
|
|
|
// NewProviderAggregator returns an aggregate of all the providers configured in the static configuration.
|
|
func NewProviderAggregator(conf static.Providers) ProviderAggregator {
|
|
p := ProviderAggregator{}
|
|
|
|
if conf.File != nil {
|
|
p.quietAddProvider(conf.File)
|
|
}
|
|
|
|
if conf.Docker != nil {
|
|
p.quietAddProvider(conf.Docker)
|
|
}
|
|
|
|
if conf.Marathon != nil {
|
|
p.quietAddProvider(conf.Marathon)
|
|
}
|
|
|
|
if conf.Rest != nil {
|
|
p.quietAddProvider(conf.Rest)
|
|
}
|
|
|
|
if conf.Kubernetes != nil {
|
|
p.quietAddProvider(conf.Kubernetes)
|
|
}
|
|
|
|
if conf.KubernetesCRD != nil {
|
|
p.quietAddProvider(conf.KubernetesCRD)
|
|
}
|
|
|
|
return p
|
|
}
|
|
|
|
func (p *ProviderAggregator) quietAddProvider(provider provider.Provider) {
|
|
err := p.AddProvider(provider)
|
|
if err != nil {
|
|
log.WithoutContext().Errorf("Error while initializing provider %T: %v", provider, err)
|
|
}
|
|
}
|
|
|
|
// AddProvider adds a provider in the providers map.
|
|
func (p *ProviderAggregator) AddProvider(provider provider.Provider) error {
|
|
err := provider.Init()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if fileProvider, ok := provider.(*file.Provider); ok {
|
|
p.fileProvider = fileProvider
|
|
} else {
|
|
p.providers = append(p.providers, provider)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// Init the provider
|
|
func (p ProviderAggregator) Init() error {
|
|
return nil
|
|
}
|
|
|
|
// Provide calls the provide method of every providers
|
|
func (p ProviderAggregator) Provide(configurationChan chan<- config.Message, pool *safe.Pool) error {
|
|
if p.fileProvider != nil {
|
|
launchProvider(configurationChan, pool, p.fileProvider)
|
|
}
|
|
|
|
for _, prd := range p.providers {
|
|
safe.Go(func() {
|
|
launchProvider(configurationChan, pool, prd)
|
|
})
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func launchProvider(configurationChan chan<- config.Message, pool *safe.Pool, prd provider.Provider) {
|
|
jsonConf, err := json.Marshal(prd)
|
|
if err != nil {
|
|
log.WithoutContext().Debugf("Cannot marshal the provider configuration %T: %v", prd, err)
|
|
}
|
|
|
|
log.WithoutContext().Infof("Starting provider %T %s", prd, jsonConf)
|
|
|
|
currentProvider := prd
|
|
err = currentProvider.Provide(configurationChan, pool)
|
|
if err != nil {
|
|
log.WithoutContext().Errorf("Cannot start the provider %T: %v", prd, err)
|
|
}
|
|
}
|