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/
manager.go
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/
manager.go
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// Copyright 2022 TriggerMesh Inc.
// SPDX-License-Identifier: Apache-2.0
package controller
import (
"context"
"fmt"
"go.uber.org/zap"
corev1 "k8s.io/api/core/v1"
_ "k8s.io/client-go/plugin/pkg/client/auth/gcp"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/client/config"
crctrl "sigs.k8s.io/controller-runtime/pkg/controller"
"sigs.k8s.io/controller-runtime/pkg/handler"
crlog "sigs.k8s.io/controller-runtime/pkg/log"
crzap "sigs.k8s.io/controller-runtime/pkg/log/zap"
"sigs.k8s.io/controller-runtime/pkg/manager"
"sigs.k8s.io/controller-runtime/pkg/predicate"
"sigs.k8s.io/controller-runtime/pkg/source"
cfgbroker "github.com/triggermesh/brokers/pkg/config/broker"
)
type SecretBrokerConfigCallback func(*cfgbroker.Config)
type Manager struct {
manager manager.Manager
rs *reconcileBrokerConfigSecret
rcm *reconcileObservabilityConfigMap
logger *zap.SugaredLogger
}
func NewManager(namespace string, logger *zap.SugaredLogger) (*Manager, error) {
// There is no easy way of bridging the gap between Knative style
// and controller-runtime style loggers.
crlog.SetLogger(crzap.New())
mgr, err := manager.New(config.GetConfigOrDie(), manager.Options{
Namespace: namespace,
MetricsBindAddress: "0",
})
if err != nil {
return nil, fmt.Errorf("unable to set up controller manager: %w", err)
}
return &Manager{
manager: mgr,
logger: logger,
}, nil
}
func (m *Manager) AddSecretControllerForBrokerConfig(name, key string) error {
m.logger.Infow("Setting up Secret controller for broker config", zap.String("name", name), zap.String("key", key))
m.rs = &reconcileBrokerConfigSecret{
name: name,
key: key,
client: m.manager.GetClient(),
logger: m.logger,
}
c, err := crctrl.New("broker-config-secret-controller", m.manager, crctrl.Options{
Reconciler: m.rs,
})
if err != nil {
return fmt.Errorf("unable to set up Secret controller: %w", err)
}
if err := c.Watch(
&source.Kind{Type: &corev1.Secret{}},
&handler.EnqueueRequestForObject{},
predicate.NewPredicateFuncs(func(o client.Object) bool { return o.GetName() == name }),
); err != nil {
return fmt.Errorf("unable to set watch for Secret: %w", err)
}
return nil
}
func (m *Manager) AddSecretCallbackForBrokerConfig(cb SecretBrokerConfigCallback) {
m.rs.cbs = append(m.rs.cbs, cb)
}
func (m *Manager) AddConfigMapControllerForObservability(name string) error {
m.logger.Info("Setting up ConfigMap controller for observability")
m.rcm = &reconcileObservabilityConfigMap{
name: name,
client: m.manager.GetClient(),
logger: m.logger,
}
c, err := crctrl.New("observability-configmap-controller", m.manager, crctrl.Options{
Reconciler: m.rcm,
})
if err != nil {
return fmt.Errorf("unable to set up ConfigMap controller: %w", err)
}
if err := c.Watch(
&source.Kind{Type: &corev1.ConfigMap{}},
&handler.EnqueueRequestForObject{},
predicate.NewPredicateFuncs(func(o client.Object) bool { return o.GetName() == name }),
); err != nil {
return fmt.Errorf("unable to set watch for ConfigMaps: %w", err)
}
return nil
}
func (m *Manager) AddConfigMapCallbackForObservabilityConfig(cb ConfigMapObservabilityCallback) {
m.rcm.cbs = append(m.rcm.cbs, cb)
}
func (m *Manager) Start(ctx context.Context) error {
m.logger.Info("Starting manager")
if err := m.manager.Start(ctx); err != nil {
return fmt.Errorf("unable to run controller manager: %w", err)
}
return nil
}