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Signed-off-by: Shivam Mukhade <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,169 @@ | ||
| /* | ||
| Copyright 2021 The Tekton 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 installer | ||
|
|
||
| import ( | ||
| "errors" | ||
| "strings" | ||
|
|
||
| mf "github.com/manifestival/manifestival" | ||
| appsv1 "k8s.io/api/apps/v1" | ||
| corev1 "k8s.io/api/core/v1" | ||
| "k8s.io/apimachinery/pkg/runtime" | ||
| ) | ||
|
|
||
| var ( | ||
| namespacePred = mf.ByKind("Namespace") | ||
| configMapPred = mf.ByKind("ConfigMap") | ||
| secretPred = mf.ByKind("Secret") | ||
| deploymentPred = mf.ByKind("Deployment") | ||
| servicePred = mf.ByKind("Service") | ||
| serviceAccountPred = mf.ByKind("ServiceAccount") | ||
| rolePred = mf.ByKind("Role") | ||
| roleBindingPred = mf.ByKind("RoleBinding") | ||
| clusterRolePred = mf.ByKind("ClusterRole") | ||
| clusterRoleBindingPred = mf.ByKind("ClusterRoleBinding") | ||
| podSecurityPolicyPred = mf.ByKind("PodSecurityPolicy") | ||
| validatingWebhookConfigurationPred = mf.ByKind("ValidatingWebhookConfiguration") | ||
| mutatingWebhookConfigurationPred = mf.ByKind("MutatingWebhookConfiguration") | ||
| horizontalPodAutoscalerPred = mf.ByKind("HorizontalPodAutoscaler") | ||
| ) | ||
|
|
||
| type Installer struct { | ||
| Manifest mf.Manifest | ||
| Label string | ||
| } | ||
|
|
||
| func (i *Installer) EnsureCRDs() error { | ||
| if err := i.IsInstalled(mf.CRDs); err != nil { | ||
| return err | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func (i *Installer) EnsureClusterScopedResources() error { | ||
| if err := i.IsInstalled( | ||
| namespacePred, | ||
| clusterRolePred, | ||
| podSecurityPolicyPred, | ||
| validatingWebhookConfigurationPred, | ||
| mutatingWebhookConfigurationPred, | ||
| ); err != nil { | ||
| return err | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func (i *Installer) EnsureNamespaceScopedResources() error { | ||
|
|
||
| if err := i.IsInstalled( | ||
| serviceAccountPred, | ||
| clusterRoleBindingPred, | ||
| rolePred, | ||
| roleBindingPred, | ||
| configMapPred, | ||
| secretPred, | ||
| horizontalPodAutoscalerPred, | ||
| ); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func (i *Installer) EnsureDeploymentResources() error { | ||
|
|
||
| if err := i.IsInstalled( | ||
| deploymentPred, | ||
| servicePred, | ||
| ); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func (i *Installer) IsInstalled(pred ...mf.Predicate) error { | ||
|
|
||
| manifest := i.Manifest.Filter(mf.Any(pred...)) | ||
| if len(manifest.Resources()) == 0 { | ||
| return nil | ||
| } | ||
|
|
||
| for _, res := range manifest.Resources() { | ||
|
|
||
| // Check if resource exist | ||
| _, err := i.Manifest.Client.Get(&res) | ||
| if err == nil { | ||
| // If resource exist then continue | ||
| // TODO: compare both objects to decide update or not | ||
| // TODO: check label to validate if version is changed | ||
| continue | ||
| } | ||
|
|
||
| // If resource doesn't exist then create | ||
| err = i.Manifest.Client.Create(&res) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func (i *Installer) IsWebhookReady() error { | ||
| return i.IsDeploymentReady("webhook") | ||
| } | ||
|
|
||
| func (i *Installer) IsControllerReady() error { | ||
| return i.IsDeploymentReady("controller") | ||
| } | ||
|
|
||
| func (i *Installer) IsDeploymentReady(name string) error { | ||
|
|
||
| for _, u := range i.Manifest.Filter(deploymentPred).Resources() { | ||
|
|
||
| if !strings.Contains(u.GetName(), name) { | ||
| continue | ||
| } | ||
|
|
||
| resource, err := i.Manifest.Client.Get(&u) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| deployment := &appsv1.Deployment{} | ||
| err = runtime.DefaultUnstructuredConverter.FromUnstructured(resource.Object, deployment) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| if !isDeploymentAvailable(deployment) { | ||
| return errors.New("deployment not available") | ||
| } | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
| func isDeploymentAvailable(d *appsv1.Deployment) bool { | ||
| for _, c := range d.Status.Conditions { | ||
| if c.Type == appsv1.DeploymentAvailable && c.Status == corev1.ConditionTrue { | ||
| return true | ||
| } | ||
| } | ||
| return false | ||
| } |
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