/
controller.go
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/
controller.go
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// Copyright 2018 The Operator-SDK Authors
//
// Licensed 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 controller
import (
"fmt"
"os"
"strings"
"time"
"github.com/operator-framework/operator-sdk/pkg/ansible/events"
"github.com/operator-framework/operator-sdk/pkg/ansible/runner"
"github.com/operator-framework/operator-sdk/pkg/predicate"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
"sigs.k8s.io/controller-runtime/pkg/controller"
crthandler "sigs.k8s.io/controller-runtime/pkg/handler"
logf "sigs.k8s.io/controller-runtime/pkg/log"
"sigs.k8s.io/controller-runtime/pkg/manager"
"sigs.k8s.io/controller-runtime/pkg/source"
)
var log = logf.Log.WithName("ansible-controller")
// Options - options for your controller
type Options struct {
EventHandlers []events.EventHandler
LoggingLevel events.LogLevel
Runner runner.Runner
GVK schema.GroupVersionKind
ReconcilePeriod time.Duration
ManageStatus bool
WatchDependentResources bool
WatchClusterScopedResources bool
MaxWorkers int
}
// Add - Creates a new ansible operator controller and adds it to the manager
func Add(mgr manager.Manager, options Options) *controller.Controller {
log.Info("Watching resource", "Options.Group", options.GVK.Group, "Options.Version", options.GVK.Version, "Options.Kind", options.GVK.Kind)
if options.EventHandlers == nil {
options.EventHandlers = []events.EventHandler{}
}
eventHandlers := append(options.EventHandlers, events.NewLoggingEventHandler(options.LoggingLevel))
aor := &AnsibleOperatorReconciler{
Client: mgr.GetClient(),
GVK: options.GVK,
Runner: options.Runner,
EventHandlers: eventHandlers,
ReconcilePeriod: options.ReconcilePeriod,
ManageStatus: options.ManageStatus,
APIReader: mgr.GetAPIReader(),
}
scheme := mgr.GetScheme()
_, err := scheme.New(options.GVK)
if runtime.IsNotRegisteredError(err) {
// Register the GVK with the schema
scheme.AddKnownTypeWithName(options.GVK, &unstructured.Unstructured{})
metav1.AddToGroupVersion(mgr.GetScheme(), schema.GroupVersion{
Group: options.GVK.Group,
Version: options.GVK.Version,
})
} else if err != nil {
log.Error(err, "")
os.Exit(1)
}
//Create new controller runtime controller and set the controller to watch GVK.
c, err := controller.New(fmt.Sprintf("%v-controller", strings.ToLower(options.GVK.Kind)), mgr, controller.Options{
Reconciler: aor,
MaxConcurrentReconciles: options.MaxWorkers,
})
if err != nil {
log.Error(err, "")
os.Exit(1)
}
u := &unstructured.Unstructured{}
u.SetGroupVersionKind(options.GVK)
if err := c.Watch(&source.Kind{Type: u}, &crthandler.EnqueueRequestForObject{}, predicate.GenerationChangedPredicate{}); err != nil {
log.Error(err, "")
os.Exit(1)
}
return &c
}