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authorShashank Kumar Shankar <shashank.kumar.shankar@intel.com>2018-08-20 15:50:50 -0700
committerVictor Morales <victor.morales@intel.com>2018-08-24 15:51:16 -0700
commita1373742a2c3f980360e4980f3b23b0ff3480ae6 (patch)
treece2fb583dea15b8a546d794d21786fdf0f666539 /src/k8splugin/plugins
parent6ff216219ccb4567baeb34c9dba73daabb60f629 (diff)
Seed code for k8s multicloud plugin
This patch provides the initial seed code for the multicloud Kubernetes plugin and also provides the plugin feature to add new Kubernetes kinds. Change-Id: Ie5ee414656665070cde2834c4855ac2ebc179a9a Issue-ID: MULTICLOUD-301 Signed-off-by: Shashank Kumar Shankar <shashank.kumar.shankar@intel.com> Signed-off-by: Victor Morales <victor.morales@intel.com>
Diffstat (limited to 'src/k8splugin/plugins')
-rw-r--r--src/k8splugin/plugins/deployment/plugin.go136
-rw-r--r--src/k8splugin/plugins/namespace/plugin.go68
-rw-r--r--src/k8splugin/plugins/service/plugin.go131
3 files changed, 335 insertions, 0 deletions
diff --git a/src/k8splugin/plugins/deployment/plugin.go b/src/k8splugin/plugins/deployment/plugin.go
new file mode 100644
index 00000000..2b4c7cb7
--- /dev/null
+++ b/src/k8splugin/plugins/deployment/plugin.go
@@ -0,0 +1,136 @@
+/*
+Copyright 2018 Intel Corporation.
+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 main
+
+import (
+ "io/ioutil"
+ "log"
+ "os"
+
+ "k8s.io/client-go/kubernetes"
+
+ pkgerrors "github.com/pkg/errors"
+
+ appsV1 "k8s.io/api/apps/v1"
+ metaV1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+ "k8s.io/client-go/kubernetes/scheme"
+
+ "k8splugin/krd"
+)
+
+// CreateResource object in a specific Kubernetes Deployment
+func CreateResource(kubedata *krd.GenericKubeResourceData, kubeclient *kubernetes.Clientset) (string, error) {
+ if kubedata.Namespace == "" {
+ kubedata.Namespace = "default"
+ }
+
+ if _, err := os.Stat(kubedata.YamlFilePath); err != nil {
+ return "", pkgerrors.New("File " + kubedata.YamlFilePath + " not found")
+ }
+
+ log.Println("Reading deployment YAML")
+ rawBytes, err := ioutil.ReadFile(kubedata.YamlFilePath)
+ if err != nil {
+ return "", pkgerrors.Wrap(err, "Deployment YAML file read error")
+ }
+
+ log.Println("Decoding deployment YAML")
+ decode := scheme.Codecs.UniversalDeserializer().Decode
+ obj, _, err := decode(rawBytes, nil, nil)
+ if err != nil {
+ return "", pkgerrors.Wrap(err, "Deserialize deployment error")
+ }
+
+ switch o := obj.(type) {
+ case *appsV1.Deployment:
+ kubedata.DeploymentData = o
+ default:
+ return "", pkgerrors.New(kubedata.YamlFilePath + " contains another resource different than Deployment")
+ }
+
+ kubedata.DeploymentData.Namespace = kubedata.Namespace
+ kubedata.DeploymentData.Name = kubedata.InternalVNFID + "-" + kubedata.DeploymentData.Name
+
+ result, err := kubeclient.AppsV1().Deployments(kubedata.Namespace).Create(kubedata.DeploymentData)
+ if err != nil {
+ return "", pkgerrors.Wrap(err, "Create Deployment error")
+ }
+
+ return result.GetObjectMeta().GetName(), nil
+}
+
+// ListResources of existing deployments hosted in a specific Kubernetes Deployment
+func ListResources(limit int64, namespace string, kubeclient *kubernetes.Clientset) (*[]string, error) {
+ if namespace == "" {
+ namespace = "default"
+ }
+
+ opts := metaV1.ListOptions{
+ Limit: limit,
+ }
+ opts.APIVersion = "apps/v1"
+ opts.Kind = "Deployment"
+
+ list, err := kubeclient.AppsV1().Deployments(namespace).List(opts)
+ if err != nil {
+ return nil, pkgerrors.Wrap(err, "Get Deployment list error")
+ }
+
+ result := make([]string, 0, limit)
+ if list != nil {
+ for _, deployment := range list.Items {
+ result = append(result, deployment.Name)
+ }
+ }
+
+ return &result, nil
+}
+
+// DeleteResource existing deployments hosting in a specific Kubernetes Deployment
+func DeleteResource(name string, namespace string, kubeclient *kubernetes.Clientset) error {
+ if namespace == "" {
+ namespace = "default"
+ }
+
+ log.Println("Deleting deployment: " + name)
+
+ deletePolicy := metaV1.DeletePropagationForeground
+ err := kubeclient.AppsV1().Deployments(namespace).Delete(name, &metaV1.DeleteOptions{
+ PropagationPolicy: &deletePolicy,
+ })
+
+ if err != nil {
+ return pkgerrors.Wrap(err, "Delete Deployment error")
+ }
+
+ return nil
+}
+
+// GetResource existing deployment hosting in a specific Kubernetes Deployment
+func GetResource(name string, namespace string, kubeclient *kubernetes.Clientset) (string, error) {
+ if namespace == "" {
+ namespace = "default"
+ }
+
+ opts := metaV1.GetOptions{}
+ opts.APIVersion = "apps/v1"
+ opts.Kind = "Deployment"
+
+ deployment, err := kubeclient.AppsV1().Deployments(namespace).Get(name, opts)
+ if err != nil {
+ return "", pkgerrors.Wrap(err, "Get Deployment error")
+ }
+
+ return deployment.Name, nil
+}
diff --git a/src/k8splugin/plugins/namespace/plugin.go b/src/k8splugin/plugins/namespace/plugin.go
new file mode 100644
index 00000000..986de863
--- /dev/null
+++ b/src/k8splugin/plugins/namespace/plugin.go
@@ -0,0 +1,68 @@
+/*
+Copyright 2018 Intel Corporation.
+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 main
+
+import (
+ pkgerrors "github.com/pkg/errors"
+
+ coreV1 "k8s.io/api/core/v1"
+ metaV1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+ "k8s.io/client-go/kubernetes"
+)
+
+// CreateResource is used to create a new Namespace
+func CreateResource(namespace string, client *kubernetes.Clientset) error {
+ namespaceStruct := &coreV1.Namespace{
+ ObjectMeta: metaV1.ObjectMeta{
+ Name: namespace,
+ },
+ }
+ _, err := client.CoreV1().Namespaces().Create(namespaceStruct)
+ if err != nil {
+ return pkgerrors.Wrap(err, "Create Namespace error")
+ }
+ return nil
+}
+
+// GetResource is used to check if a given namespace actually exists in Kubernetes
+func GetResource(namespace string, client *kubernetes.Clientset) (bool, error) {
+ opts := metaV1.ListOptions{}
+
+ namespaceList, err := client.CoreV1().Namespaces().List(opts)
+ if err != nil {
+ return false, pkgerrors.Wrap(err, "Get Namespace list error")
+ }
+
+ for _, ns := range namespaceList.Items {
+ if namespace == ns.Name {
+ return true, nil
+ }
+ }
+
+ return false, nil
+}
+
+// DeleteResource is used to delete a namespace
+func DeleteResource(namespace string, client *kubernetes.Clientset) error {
+ deletePolicy := metaV1.DeletePropagationForeground
+
+ err := client.CoreV1().Namespaces().Delete(namespace, &metaV1.DeleteOptions{
+ PropagationPolicy: &deletePolicy,
+ })
+
+ if err != nil {
+ return pkgerrors.Wrap(err, "Delete Namespace error")
+ }
+ return nil
+}
diff --git a/src/k8splugin/plugins/service/plugin.go b/src/k8splugin/plugins/service/plugin.go
new file mode 100644
index 00000000..36ef24f6
--- /dev/null
+++ b/src/k8splugin/plugins/service/plugin.go
@@ -0,0 +1,131 @@
+/*
+Copyright 2018 Intel Corporation.
+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 main
+
+import (
+ "io/ioutil"
+ "log"
+ "os"
+
+ "k8s.io/client-go/kubernetes"
+
+ pkgerrors "github.com/pkg/errors"
+
+ coreV1 "k8s.io/api/core/v1"
+ metaV1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+ "k8s.io/client-go/kubernetes/scheme"
+
+ "k8splugin/krd"
+)
+
+// CreateResource object in a specific Kubernetes Deployment
+func CreateResource(kubedata *krd.GenericKubeResourceData, kubeclient *kubernetes.Clientset) (string, error) {
+ if kubedata.Namespace == "" {
+ kubedata.Namespace = "default"
+ }
+
+ if _, err := os.Stat(kubedata.YamlFilePath); err != nil {
+ return "", pkgerrors.New("File " + kubedata.YamlFilePath + " not found")
+ }
+
+ log.Println("Reading service YAML")
+ rawBytes, err := ioutil.ReadFile(kubedata.YamlFilePath)
+ if err != nil {
+ return "", pkgerrors.Wrap(err, "Service YAML file read error")
+ }
+
+ log.Println("Decoding service YAML")
+ decode := scheme.Codecs.UniversalDeserializer().Decode
+ obj, _, err := decode(rawBytes, nil, nil)
+ if err != nil {
+ return "", pkgerrors.Wrap(err, "Deserialize service error")
+ }
+
+ switch o := obj.(type) {
+ case *coreV1.Service:
+ kubedata.ServiceData = o
+ default:
+ return "", pkgerrors.New(kubedata.YamlFilePath + " contains another resource different than Service")
+ }
+
+ kubedata.ServiceData.Namespace = kubedata.Namespace
+ kubedata.ServiceData.Name = kubedata.InternalVNFID + "-" + kubedata.ServiceData.Name
+
+ result, err := kubeclient.CoreV1().Services(kubedata.Namespace).Create(kubedata.ServiceData)
+ if err != nil {
+ return "", pkgerrors.Wrap(err, "Create Service error")
+ }
+ return result.GetObjectMeta().GetName(), nil
+}
+
+// ListResources of existing deployments hosted in a specific Kubernetes Deployment
+func ListResources(limit int64, namespace string, kubeclient *kubernetes.Clientset) (*[]string, error) {
+ if namespace == "" {
+ namespace = "default"
+ }
+ opts := metaV1.ListOptions{
+ Limit: limit,
+ }
+ opts.APIVersion = "apps/v1"
+ opts.Kind = "Service"
+
+ list, err := kubeclient.CoreV1().Services(namespace).List(opts)
+ if err != nil {
+ return nil, pkgerrors.Wrap(err, "Get Service list error")
+ }
+ result := make([]string, 0, limit)
+ if list != nil {
+ for _, service := range list.Items {
+ result = append(result, service.Name)
+ }
+ }
+ return &result, nil
+}
+
+// DeleteResource deletes an existing Kubernetes service
+func DeleteResource(name string, namespace string, kubeclient *kubernetes.Clientset) error {
+ if namespace == "" {
+ namespace = "default"
+ }
+
+ log.Println("Deleting service: " + name)
+
+ deletePolicy := metaV1.DeletePropagationForeground
+ err := kubeclient.CoreV1().Services(namespace).Delete(name, &metaV1.DeleteOptions{
+ PropagationPolicy: &deletePolicy,
+ })
+ if err != nil {
+ return pkgerrors.Wrap(err, "Delete Service error")
+ }
+
+ return nil
+}
+
+// GetResource existing service hosting in a specific Kubernetes Service
+func GetResource(name string, namespace string, kubeclient *kubernetes.Clientset) (string, error) {
+ if namespace == "" {
+ namespace = "default"
+ }
+
+ opts := metaV1.GetOptions{}
+ opts.APIVersion = "apps/v1"
+ opts.Kind = "Service"
+
+ service, err := kubeclient.CoreV1().Services(namespace).Get(name, opts)
+ if err != nil {
+ return "", pkgerrors.Wrap(err, "Get Deployment error")
+ }
+
+ return service.Name, nil
+}