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-rw-r--r--src/k8splugin/plugins/namespace/plugin.go74
-rw-r--r--src/k8splugin/plugins/namespace/plugin_test.go170
2 files changed, 222 insertions, 22 deletions
diff --git a/src/k8splugin/plugins/namespace/plugin.go b/src/k8splugin/plugins/namespace/plugin.go
index 986de863..e29ff43d 100644
--- a/src/k8splugin/plugins/namespace/plugin.go
+++ b/src/k8splugin/plugins/namespace/plugin.go
@@ -14,55 +14,85 @@ limitations under the License.
package main
import (
+ "log"
+
+ "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"
+
+ "k8splugin/krd"
)
-// CreateResource is used to create a new Namespace
-func CreateResource(namespace string, client *kubernetes.Clientset) error {
- namespaceStruct := &coreV1.Namespace{
+// Create a namespace object in a specific Kubernetes cluster
+func Create(data *krd.ResourceData, client kubernetes.Interface) (string, error) {
+ namespace := &coreV1.Namespace{
ObjectMeta: metaV1.ObjectMeta{
- Name: namespace,
+ Name: data.Namespace,
},
}
- _, err := client.CoreV1().Namespaces().Create(namespaceStruct)
+ _, err := client.CoreV1().Namespaces().Create(namespace)
if err != nil {
- return pkgerrors.Wrap(err, "Create Namespace error")
+ return "", pkgerrors.Wrap(err, "Create Namespace error")
}
- return nil
+ return data.Namespace, nil
}
-// GetResource is used to check if a given namespace actually exists in Kubernetes
-func GetResource(namespace string, client *kubernetes.Clientset) (bool, error) {
+// Get an existing namespace hosted in a specific Kubernetes cluster
+func Get(name string, namespace string, client kubernetes.Interface) (string, error) {
opts := metaV1.ListOptions{}
- namespaceList, err := client.CoreV1().Namespaces().List(opts)
+ list, err := client.CoreV1().Namespaces().List(opts)
if err != nil {
- return false, pkgerrors.Wrap(err, "Get Namespace list error")
+ return "", pkgerrors.Wrap(err, "Get Namespace list error")
}
- for _, ns := range namespaceList.Items {
+ for _, ns := range list.Items {
if namespace == ns.Name {
- return true, nil
+ return ns.Name, nil
}
}
- return false, nil
+ return "", nil
}
-// DeleteResource is used to delete a namespace
-func DeleteResource(namespace string, client *kubernetes.Clientset) error {
+// Delete an existing namespace hosted in a specific Kubernetes cluster
+func Delete(name string, namespace string, client kubernetes.Interface) error {
deletePolicy := metaV1.DeletePropagationForeground
-
- err := client.CoreV1().Namespaces().Delete(namespace, &metaV1.DeleteOptions{
+ opts := &metaV1.DeleteOptions{
PropagationPolicy: &deletePolicy,
- })
+ }
- if err != nil {
- return pkgerrors.Wrap(err, "Delete Namespace error")
+ log.Println("Deleting namespace: " + name)
+ if err := client.CoreV1().Namespaces().Delete(name, opts); err != nil {
+ return pkgerrors.Wrap(err, "Delete namespace error")
}
+
return nil
}
+
+// List of existing namespaces hosted in a specific Kubernetes cluster
+func List(namespace string, client kubernetes.Interface) ([]string, error) {
+ opts := metaV1.ListOptions{
+ Limit: krd.ResourcesListLimit,
+ }
+ opts.APIVersion = "apps/v1"
+ opts.Kind = "Namespace"
+
+ list, err := client.CoreV1().Namespaces().List(opts)
+ if err != nil {
+ return nil, pkgerrors.Wrap(err, "Get Namespace list error")
+ }
+
+ result := make([]string, 0, krd.ResourcesListLimit)
+ if list != nil {
+ for _, deployment := range list.Items {
+ log.Printf("%v", deployment.Name)
+ result = append(result, deployment.Name)
+ }
+ }
+
+ return result, nil
+}
diff --git a/src/k8splugin/plugins/namespace/plugin_test.go b/src/k8splugin/plugins/namespace/plugin_test.go
new file mode 100644
index 00000000..fe60404d
--- /dev/null
+++ b/src/k8splugin/plugins/namespace/plugin_test.go
@@ -0,0 +1,170 @@
+// +build unit
+
+/*
+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 (
+ "reflect"
+ "strings"
+ "testing"
+
+ "k8splugin/krd"
+
+ coreV1 "k8s.io/api/core/v1"
+ metaV1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+ testclient "k8s.io/client-go/kubernetes/fake"
+)
+
+func TestCreateNamespace(t *testing.T) {
+ namespace := "test1"
+ testCases := []struct {
+ label string
+ input *krd.ResourceData
+ clientOutput *coreV1.Namespace
+ expectedResult string
+ expectedError string
+ }{
+ {
+ label: "Successfully create a namespace",
+ input: &krd.ResourceData{
+ Namespace: namespace,
+ },
+ clientOutput: &coreV1.Namespace{},
+ expectedResult: namespace,
+ },
+ }
+
+ for _, testCase := range testCases {
+ client := testclient.NewSimpleClientset(testCase.clientOutput)
+ t.Run(testCase.label, func(t *testing.T) {
+ result, err := Create(testCase.input, client)
+ if err != nil {
+ if !strings.Contains(string(err.Error()), testCase.expectedError) {
+ t.Fatalf("Create method returned an error (%s)", err)
+ }
+ }
+ if !reflect.DeepEqual(testCase.expectedResult, result) {
+ t.Fatalf("Create method returned %v and it was expected (%v)", result, testCase.expectedResult)
+ }
+ })
+ }
+}
+
+func TestListNamespace(t *testing.T) {
+ namespace := "test1"
+ testCases := []struct {
+ label string
+ input string
+ clientOutput *coreV1.NamespaceList
+ expectedResult []string
+ }{
+ {
+ label: "Sucessfully to display an empty namespace list",
+ input: namespace,
+ clientOutput: &coreV1.NamespaceList{},
+ expectedResult: []string{},
+ },
+ {
+ label: "Sucessfully to display a list of existing namespaces",
+ input: namespace,
+ clientOutput: &coreV1.NamespaceList{
+ Items: []coreV1.Namespace{
+ coreV1.Namespace{
+ ObjectMeta: metaV1.ObjectMeta{
+ Name: namespace,
+ },
+ },
+ },
+ },
+ expectedResult: []string{namespace},
+ },
+ }
+
+ for _, testCase := range testCases {
+ client := testclient.NewSimpleClientset(testCase.clientOutput)
+ t.Run(testCase.label, func(t *testing.T) {
+ result, err := List(testCase.input, client)
+ if err != nil {
+ t.Fatalf("List method returned an error (%s)", err)
+ }
+ if !reflect.DeepEqual(testCase.expectedResult, result) {
+ t.Fatalf("List method returned %v and it was expected (%v)", result, testCase.expectedResult)
+ }
+ })
+ }
+}
+
+func TestDeleteNamespace(t *testing.T) {
+ namespace := "test1"
+ testCases := []struct {
+ label string
+ input string
+ clientOutput *coreV1.Namespace
+ }{
+ {
+ label: "Sucessfully to delete an existing namespace",
+ input: namespace,
+ clientOutput: &coreV1.Namespace{
+ ObjectMeta: metaV1.ObjectMeta{
+ Name: namespace,
+ },
+ },
+ },
+ }
+
+ for _, testCase := range testCases {
+ client := testclient.NewSimpleClientset(testCase.clientOutput)
+ t.Run(testCase.label, func(t *testing.T) {
+ err := Delete(testCase.input, namespace, client)
+ if err != nil {
+ t.Fatalf("Delete method returned an error (%s)", err)
+ }
+ })
+ }
+}
+
+func TestGetNamespace(t *testing.T) {
+ namespace := "test1"
+ testCases := []struct {
+ label string
+ input string
+ clientOutput *coreV1.Namespace
+ expectedResult string
+ }{
+ {
+ label: "Sucessfully to get an existing namespace",
+ input: namespace,
+ clientOutput: &coreV1.Namespace{
+ ObjectMeta: metaV1.ObjectMeta{
+ Name: namespace,
+ },
+ },
+ expectedResult: namespace,
+ },
+ }
+
+ for _, testCase := range testCases {
+ client := testclient.NewSimpleClientset(testCase.clientOutput)
+ t.Run(testCase.label, func(t *testing.T) {
+ result, err := Get(testCase.input, namespace, client)
+ if err != nil {
+ t.Fatalf("Get method returned an error (%s)", err)
+ }
+ if !reflect.DeepEqual(testCase.expectedResult, result) {
+ t.Fatalf("Get method returned %v and it was expected (%v)", result, testCase.expectedResult)
+ }
+ })
+ }
+}