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vsphere.go
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vsphere.go
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/*
Copyright 2020 VMware, Inc.
SPDX-License-Identifier: Apache-2.0
*/
package vspheresource
import (
"context"
"fmt"
sourcesv1alpha1 "github.com/vmware-tanzu/sources-for-knative/pkg/apis/sources/v1alpha1"
clientset "github.com/vmware-tanzu/sources-for-knative/pkg/client/clientset/versioned"
vspherereconciler "github.com/vmware-tanzu/sources-for-knative/pkg/client/injection/reconciler/sources/v1alpha1/vspheresource"
v1alpha1lister "github.com/vmware-tanzu/sources-for-knative/pkg/client/listers/sources/v1alpha1"
"github.com/vmware-tanzu/sources-for-knative/pkg/reconciler/vspheresource/resources"
resourcenames "github.com/vmware-tanzu/sources-for-knative/pkg/reconciler/vspheresource/resources/names"
apierrs "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/kubernetes"
appsv1listers "k8s.io/client-go/listers/apps/v1"
corev1Listers "k8s.io/client-go/listers/core/v1"
rbacv1listers "k8s.io/client-go/listers/rbac/v1"
eventingclientset "knative.dev/eventing/pkg/client/clientset/versioned"
"knative.dev/pkg/logging"
"knative.dev/pkg/reconciler"
"knative.dev/pkg/resolver"
)
// Reconciler implements vspherereconciler.Interface for
// VSphereSource resources.
type Reconciler struct {
adapterImage string
resolver *resolver.URIResolver
kubeclient kubernetes.Interface
eventingclient eventingclientset.Interface
client clientset.Interface
deploymentLister appsv1listers.DeploymentLister
vspherebindingLister v1alpha1lister.VSphereBindingLister
rbacLister rbacv1listers.RoleBindingLister
cmLister corev1Listers.ConfigMapLister
saLister corev1Listers.ServiceAccountLister
}
// Check that our Reconciler implements Interface
var _ vspherereconciler.Interface = (*Reconciler)(nil)
// ReconcileKind implements Interface.ReconcileKind.
func (r *Reconciler) ReconcileKind(ctx context.Context, vms *sourcesv1alpha1.VSphereSource) reconciler.Event {
if err := r.reconcileVSphereBinding(ctx, vms); err != nil {
return err
}
// Make sure the ConfigMap for storing state exists before we
// create the deployment so that it gets created as owned
// by the source and hence won't be leaked.
if err := r.reconcileConfigMap(ctx, vms); err != nil {
return err
}
if err := r.reconcileServiceAccount(ctx, vms); err != nil {
return err
}
if err := r.reconcileRoleBinding(ctx, vms); err != nil {
return err
}
uri, err := r.resolver.URIFromDestinationV1(ctx, vms.Spec.Sink, vms)
if err != nil {
return err
}
vms.Status.SinkURI = uri
if err := r.reconcileDeployment(ctx, vms); err != nil {
return err
}
return nil
}
func (r *Reconciler) reconcileVSphereBinding(ctx context.Context, vms *sourcesv1alpha1.VSphereSource) error {
ns := vms.Namespace
vspherebindingName := resourcenames.VSphereBinding(vms)
vspherebinding, err := r.vspherebindingLister.VSphereBindings(ns).Get(vspherebindingName)
if apierrs.IsNotFound(err) {
vspherebinding = resources.MakeVSphereBinding(ctx, vms)
vspherebinding, err = r.client.SourcesV1alpha1().VSphereBindings(ns).Create(ctx, vspherebinding, metav1.CreateOptions{})
if err != nil {
return fmt.Errorf("failed to create vspherebinding %q: %w", vspherebindingName, err)
}
logging.FromContext(ctx).Infof("Created vspherebinding %q", vspherebindingName)
} else if err != nil {
return fmt.Errorf("failed to get vspherebinding %q: %w", vspherebindingName, err)
} else {
// The vspherebinding exists, but make sure that it has the shape that we expect.
desiredVSphereBinding := resources.MakeVSphereBinding(ctx, vms)
vspherebinding = vspherebinding.DeepCopy()
vspherebinding.Spec = desiredVSphereBinding.Spec
vspherebinding, err = r.client.SourcesV1alpha1().VSphereBindings(ns).Update(ctx, vspherebinding, metav1.UpdateOptions{})
if err != nil {
return fmt.Errorf("failed to create vspherebinding %q: %w", vspherebindingName, err)
}
}
// Reflect the state of the VSphereBinding in the VSphereSource
vms.Status.PropagateAuthStatus(vspherebinding.Status.Status)
return nil
}
func (r *Reconciler) reconcileConfigMap(ctx context.Context, vms *sourcesv1alpha1.VSphereSource) error {
ns := vms.Namespace
name := resourcenames.ConfigMap(vms)
_, err := r.cmLister.ConfigMaps(ns).Get(name)
// Note that we only create the configmap if it does not exist so that we get the
// OwnerRefs set up properly so it gets Garbage Collected.
if apierrs.IsNotFound(err) {
cm := resources.MakeConfigMap(ctx, vms)
_, err := r.kubeclient.CoreV1().ConfigMaps(ns).Create(ctx, cm, metav1.CreateOptions{})
if err != nil {
return fmt.Errorf("failed to create configmap %q: %w", name, err)
}
logging.FromContext(ctx).Infof("Created configmap %q", name)
} else if err != nil {
return fmt.Errorf("failed to get configmap %q: %w", name, err)
}
return nil
}
func (r *Reconciler) reconcileServiceAccount(ctx context.Context, vms *sourcesv1alpha1.VSphereSource) error {
ns := vms.Namespace
name := resourcenames.ServiceAccount(vms)
_, err := r.saLister.ServiceAccounts(ns).Get(name)
if apierrs.IsNotFound(err) {
sa := resources.MakeServiceAccount(ctx, vms)
_, err := r.kubeclient.CoreV1().ServiceAccounts(ns).Create(ctx, sa, metav1.CreateOptions{})
if err != nil {
return fmt.Errorf("failed to create serviceaccount %q: %w", name, err)
}
logging.FromContext(ctx).Infof("Created serviceaccount %q", name)
} else if err != nil {
return fmt.Errorf("failed to get serviceaccount %q: %w", name, err)
}
return nil
}
func (r *Reconciler) reconcileRoleBinding(ctx context.Context, vms *sourcesv1alpha1.VSphereSource) error {
ns := vms.Namespace
name := resourcenames.RoleBinding(vms)
_, err := r.rbacLister.RoleBindings(ns).Get(name)
if apierrs.IsNotFound(err) {
roleBinding := resources.MakeRoleBinding(ctx, vms)
_, err := r.kubeclient.RbacV1().RoleBindings(ns).Create(ctx, roleBinding, metav1.CreateOptions{})
if err != nil {
return fmt.Errorf("failed to create rolebinding %q: %w", name, err)
}
logging.FromContext(ctx).Infof("Created rolebinding %q", name)
} else if err != nil {
return fmt.Errorf("failed to get rolebinding %q: %w", name, err)
}
// TODO: diff the roleref / subjects and update as necessary.
return nil
}
func (r *Reconciler) reconcileDeployment(ctx context.Context, vms *sourcesv1alpha1.VSphereSource) error {
ns := vms.Namespace
deploymentName := resourcenames.Deployment(vms)
deployment, err := r.deploymentLister.Deployments(ns).Get(deploymentName)
if apierrs.IsNotFound(err) {
deployment, err = resources.MakeDeployment(ctx, vms, r.adapterImage)
if err != nil {
return fmt.Errorf("failed to create deployment %q: %w", deploymentName, err)
}
deployment, err = r.kubeclient.AppsV1().Deployments(ns).Create(ctx, deployment, metav1.CreateOptions{})
if err != nil {
return fmt.Errorf("failed to create deployment %q: %w", deploymentName, err)
}
logging.FromContext(ctx).Infof("Created deployment %q", deploymentName)
} else if err != nil {
return fmt.Errorf("failed to get deployment %q: %w", deploymentName, err)
} else {
// The deployment exists, but make sure that it has the shape that we expect.
desiredDeployment, err := resources.MakeDeployment(ctx, vms, r.adapterImage)
if err != nil {
return fmt.Errorf("failed to create deployment %q: %w", deploymentName, err)
}
deployment = deployment.DeepCopy()
deployment.Spec = desiredDeployment.Spec
deployment, err = r.kubeclient.AppsV1().Deployments(ns).Update(ctx, deployment, metav1.UpdateOptions{})
if err != nil {
return fmt.Errorf("failed to create deployment %q: %w", deploymentName, err)
}
}
// Reflect the state of the Adapter Deployment in the VSphereSource
vms.Status.PropagateAdapterStatus(deployment.Status)
return nil
}