generated from crossplane/provider-template
/
rke1cluster.go
207 lines (178 loc) · 6.81 KB
/
rke1cluster.go
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/*
Copyright 2022 The Crossplane 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 rke1cluster
import (
"context"
b64 "encoding/base64"
"fmt"
"net/http"
"github.com/pkg/errors"
"k8s.io/apimachinery/pkg/types"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
xpv1 "github.com/crossplane/crossplane-runtime/apis/common/v1"
"github.com/crossplane/crossplane-runtime/pkg/connection"
"github.com/crossplane/crossplane-runtime/pkg/controller"
"github.com/crossplane/crossplane-runtime/pkg/event"
"github.com/crossplane/crossplane-runtime/pkg/ratelimiter"
"github.com/crossplane/crossplane-runtime/pkg/reconciler/managed"
"github.com/crossplane/crossplane-runtime/pkg/resource"
"github.com/dormullor/provider-rancher/apis/rke1/v1alpha1"
apisv1alpha1 "github.com/dormullor/provider-rancher/apis/v1alpha1"
"github.com/dormullor/provider-rancher/internal/controller/features"
"github.com/dormullor/provider-rancher/util"
)
const (
errNotCluster = "managed resource is not a Cluster custom resource"
errTrackPCUsage = "cannot track ProviderConfig usage"
errGetPC = "cannot get ProviderConfig"
errGetCreds = "cannot get credentials"
)
// Setup adds a controller that reconciles Cluster managed resources.
func Setup(mgr ctrl.Manager, o controller.Options) error {
name := managed.ControllerName(v1alpha1.ClusterGroupKind)
cps := []managed.ConnectionPublisher{managed.NewAPISecretPublisher(mgr.GetClient(), mgr.GetScheme())}
if o.Features.Enabled(features.EnableAlphaExternalSecretStores) {
cps = append(cps, connection.NewDetailsManager(mgr.GetClient(), apisv1alpha1.StoreConfigGroupVersionKind))
}
r := managed.NewReconciler(mgr,
resource.ManagedKind(v1alpha1.ClusterGroupVersionKind),
managed.WithExternalConnecter(&connector{
kube: mgr.GetClient(),
usage: resource.NewProviderConfigUsageTracker(mgr.GetClient(), &apisv1alpha1.ProviderConfigUsage{})}),
managed.WithLogger(o.Logger.WithValues("controller", name)),
managed.WithRecorder(event.NewAPIRecorder(mgr.GetEventRecorderFor(name))),
managed.WithConnectionPublishers(cps...))
return ctrl.NewControllerManagedBy(mgr).
Named(name).
WithOptions(o.ForControllerRuntime()).
For(&v1alpha1.RKE1Cluster{}).
Complete(ratelimiter.NewReconciler(name, r, o.GlobalRateLimiter))
}
// A connector is expected to produce an ExternalClient when its Connect method
// is called.
type connector struct {
kube client.Client
usage resource.Tracker
}
// Connect typically produces an ExternalClient
func (c *connector) Connect(ctx context.Context, mg resource.Managed) (managed.ExternalClient, error) {
cr, ok := mg.(*v1alpha1.RKE1Cluster)
if !ok {
return nil, errors.New(errNotCluster)
}
if err := c.usage.Track(ctx, mg); err != nil {
return nil, errors.Wrap(err, errTrackPCUsage)
}
pc := &apisv1alpha1.ProviderConfig{}
if err := c.kube.Get(ctx, types.NamespacedName{Name: cr.GetProviderConfigReference().Name}, pc); err != nil {
return nil, errors.Wrap(err, errGetPC)
}
cd := pc.Spec.Credentials
tokenDecoded, err := resource.CommonCredentialExtractor(ctx, cd.Source, c.kube, cd.CommonCredentialSelectors)
if err != nil {
return nil, errors.Wrap(err, errGetCreds)
}
rancherHost := pc.Spec.RancherHost
token := "Basic " + b64.StdEncoding.EncodeToString(tokenDecoded)
client := &http.Client{}
return &external{httpClient: *client, token: token, kube: c.kube, rancherHost: rancherHost}, nil
}
// An ExternalClient observes, then either creates, updates, or deletes an
// external resource to ensure it reflects the managed resource's desired state.
type external struct {
httpClient http.Client
token string
rancherHost string
kube client.Client
}
func (c *external) Observe(ctx context.Context, mg resource.Managed) (managed.ExternalObservation, error) {
cr, ok := mg.(*v1alpha1.RKE1Cluster)
if !ok {
return managed.ExternalObservation{}, errors.New(errNotCluster)
}
results, err := util.GetClusters(c.rancherHost, c.token, c.httpClient, ctx)
if err != nil {
return managed.ExternalObservation{}, err
}
clusterFound := false
for _, cluster := range results.Data {
if cluster.Name == cr.Name {
clusterFound = true
cr.Status.AtProvider.ID = cluster.ID
if cluster.State == "active" {
cr.Status.SetConditions(xpv1.Available())
err := util.GenerateKubeconfig(ctx, c.rancherHost, cluster.ID, c.token, cr.Name, cr.Spec.ForProvider.KubeconfigSecretNamespace, c.httpClient, c.kube)
if err != nil {
return managed.ExternalObservation{}, err
}
} else {
cr.Status.SetConditions(xpv1.Unavailable())
}
}
}
return managed.ExternalObservation{
ResourceExists: clusterFound,
ResourceUpToDate: true,
ConnectionDetails: managed.ConnectionDetails{},
}, nil
}
func (c *external) Create(ctx context.Context, mg resource.Managed) (managed.ExternalCreation, error) {
cr, ok := mg.(*v1alpha1.RKE1Cluster)
if !ok {
return managed.ExternalCreation{}, errors.New(errNotCluster)
}
for index, node := range cr.Spec.ForProvider.NodePools {
if node.NodeTemplateIDRef != "" {
nodeTemplateID, err := util.GetNodeTemplateByName(c.rancherHost, c.token, node.NodeTemplateIDRef, c.httpClient, ctx)
if err != nil {
return managed.ExternalCreation{}, err
}
cr.Spec.ForProvider.NodePools[index].NodeTemplateID = nodeTemplateID
}
}
clusterId, err := util.CreateCluster(c.rancherHost, c.token, c.httpClient, cr, ctx)
if err != nil {
return managed.ExternalCreation{}, err
}
for _, node := range cr.Spec.ForProvider.NodePools {
err := util.CreateNodePool(c.rancherHost, c.token, clusterId, c.httpClient, node, ctx)
if err != nil {
return managed.ExternalCreation{}, err
}
}
return managed.ExternalCreation{
ConnectionDetails: managed.ConnectionDetails{},
}, nil
}
func (c *external) Update(ctx context.Context, mg resource.Managed) (managed.ExternalUpdate, error) {
cr, ok := mg.(*v1alpha1.RKE1Cluster)
if !ok {
return managed.ExternalUpdate{}, errors.New(errNotCluster)
}
fmt.Printf("Updating: %+v", cr)
return managed.ExternalUpdate{
ConnectionDetails: managed.ConnectionDetails{},
}, nil
}
func (c *external) Delete(ctx context.Context, mg resource.Managed) error {
cr, ok := mg.(*v1alpha1.RKE1Cluster)
if !ok {
return errors.New(errNotCluster)
}
err := util.DeleteCluster(c.rancherHost, c.token, cr.Status.AtProvider.ID, c.httpClient, ctx)
if err != nil {
return err
}
return nil
}