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operator.go
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operator.go
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package operator
import (
"time"
karinav1 "github.com/flanksource/karina/pkg/api/operator/v1"
"github.com/go-logr/logr"
"github.com/pkg/errors"
zapu "go.uber.org/zap"
"go.uber.org/zap/zapcore"
"k8s.io/apimachinery/pkg/runtime"
clientgoscheme "k8s.io/client-go/kubernetes/scheme"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/log/zap"
"sigs.k8s.io/controller-runtime/pkg/manager"
)
// +kubebuilder:rbac:groups="*",resources="*",verbs="*"
type Operator struct {
log logr.Logger
mgr manager.Manager
}
type Config struct {
MetricsAddr string
EnableLeaderElection bool
SyncPeriod time.Duration
LogLevel string
Port int
}
func New(config Config) (*Operator, error) {
scheme := runtime.NewScheme()
_ = clientgoscheme.AddToScheme(scheme)
_ = karinav1.AddToScheme(scheme)
ctrl.SetLogger(zap.New(zap.UseDevMode(true), zap.Level(logLevelFromString(config.LogLevel))))
mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{
Scheme: scheme,
MetricsBindAddress: config.MetricsAddr,
Port: config.Port,
LeaderElection: config.EnableLeaderElection,
LeaderElectionID: "bc12345d.flanksource.com",
SyncPeriod: &config.SyncPeriod,
})
if err != nil {
return nil, errors.Wrap(err, "failed to start manager")
}
if err = (NewKarinaConfigReconciler(
mgr.GetClient(),
ctrl.Log.WithName("controllers").WithName("KarinaConfig"),
mgr.GetScheme(),
)).SetupWithManager(mgr); err != nil {
return nil, errors.Wrap(err, "failed to add KarinaConfigReconciler")
}
operator := &Operator{
log: ctrl.Log.WithName("operator").WithName("KarinaOperator"),
mgr: mgr,
}
return operator, nil
}
func (o *Operator) Run() error {
// +kubebuilder:scaffold:builder
o.log.Info("starting manager")
if err := o.mgr.Start(ctrl.SetupSignalHandler()); err != nil {
return errors.Wrap(err, "failed to start manager")
}
return nil
}
func logLevelFromString(logLevel string) *zapu.AtomicLevel {
var level zapcore.Level
switch logLevel {
case "debug":
level = zapu.DebugLevel
case "info":
level = zapu.InfoLevel
case "error":
level = zapu.ErrorLevel
default:
level = zapu.ErrorLevel
}
ll := zapu.NewAtomicLevelAt(level)
return &ll
}