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authorVictor Morales <victor.morales@intel.com>2019-01-24 17:46:43 -0800
committerVictor Morales <victor.morales@intel.com>2019-01-25 16:52:38 -0800
commit083465d10c8fdeaffa89aa7daa93def3eca77df1 (patch)
tree23135a724a1628e986f9c6748b82f275763cdf10 /src/k8splugin/internal/app
parent5c4e91705457dc4bdb5526e6f5210fa879ab659d (diff)
Use a standard Go project layout
This project wasn't following some Standard Go Project Layout guidelines(https://github.com/golang-standards/project-layout). This change pretends to organize the source code and following those guidelines. Change-Id: I61085ac20f28069cede013f83034bed06892d87c Signed-off-by: Victor Morales <victor.morales@intel.com> Issue-ID: MULTICLOUD-301
Diffstat (limited to 'src/k8splugin/internal/app')
-rw-r--r--src/k8splugin/internal/app/client.go44
-rw-r--r--src/k8splugin/internal/app/client_test.go36
-rw-r--r--src/k8splugin/internal/app/vnfhelper.go196
-rw-r--r--src/k8splugin/internal/app/vnfhelper_test.go133
4 files changed, 409 insertions, 0 deletions
diff --git a/src/k8splugin/internal/app/client.go b/src/k8splugin/internal/app/client.go
new file mode 100644
index 00000000..3555afdd
--- /dev/null
+++ b/src/k8splugin/internal/app/client.go
@@ -0,0 +1,44 @@
+/*
+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 app
+
+import (
+ "errors"
+
+ pkgerrors "github.com/pkg/errors"
+
+ "k8s.io/client-go/kubernetes"
+ "k8s.io/client-go/tools/clientcmd"
+)
+
+// GetKubeClient loads the Kubernetes configuation values stored into the local configuration file
+var GetKubeClient = func(configPath string) (kubernetes.Clientset, error) {
+ var clientset *kubernetes.Clientset
+
+ if configPath == "" {
+ return *clientset, errors.New("config not passed and is not found in ~/.kube. ")
+ }
+
+ config, err := clientcmd.BuildConfigFromFlags("", configPath)
+ if err != nil {
+ return kubernetes.Clientset{}, pkgerrors.Wrap(err, "setConfig: Build config from flags raised an error")
+ }
+
+ clientset, err = kubernetes.NewForConfig(config)
+ if err != nil {
+ return *clientset, err
+ }
+
+ return *clientset, nil
+}
diff --git a/src/k8splugin/internal/app/client_test.go b/src/k8splugin/internal/app/client_test.go
new file mode 100644
index 00000000..9d892633
--- /dev/null
+++ b/src/k8splugin/internal/app/client_test.go
@@ -0,0 +1,36 @@
+// +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 app
+
+import (
+ "reflect"
+ "testing"
+)
+
+func TestGetKubeClient(t *testing.T) {
+ t.Run("Successfully create Kube Client", func(t *testing.T) {
+
+ clientset, err := GetKubeClient("../../mock_files/mock_configs/mock_config")
+ if err != nil {
+ t.Fatalf("TestGetKubeClient returned an error (%s)", err)
+ }
+
+ if reflect.TypeOf(clientset).Name() != "Clientset" {
+ t.Fatalf("TestGetKubeClient returned :\n result=%v\n expected=%v", clientset, "Clientset")
+ }
+
+ })
+}
diff --git a/src/k8splugin/internal/app/vnfhelper.go b/src/k8splugin/internal/app/vnfhelper.go
new file mode 100644
index 00000000..3deb9f21
--- /dev/null
+++ b/src/k8splugin/internal/app/vnfhelper.go
@@ -0,0 +1,196 @@
+/*
+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 app
+
+import (
+ "encoding/hex"
+ "io/ioutil"
+ "log"
+ "math/rand"
+ "os"
+
+ "k8s.io/client-go/kubernetes"
+
+ pkgerrors "github.com/pkg/errors"
+ yaml "gopkg.in/yaml.v2"
+
+ utils "k8splugin/internal"
+)
+
+func generateExternalVNFID() string {
+ b := make([]byte, 2)
+ rand.Read(b)
+ return hex.EncodeToString(b)
+}
+
+func ensuresNamespace(namespace string, kubeclient kubernetes.Interface) error {
+ namespacePlugin, ok := utils.LoadedPlugins["namespace"]
+ if !ok {
+ return pkgerrors.New("No plugin for namespace resource found")
+ }
+
+ symGetNamespaceFunc, err := namespacePlugin.Lookup("Get")
+ if err != nil {
+ return pkgerrors.Wrap(err, "Error fetching get namespace function")
+ }
+
+ ns, err := symGetNamespaceFunc.(func(string, string, kubernetes.Interface) (string, error))(
+ namespace, namespace, kubeclient)
+ if err != nil {
+ return pkgerrors.Wrap(err, "An error ocurred during the get namespace execution")
+ }
+
+ if ns == "" {
+ log.Println("Creating " + namespace + " namespace")
+ symGetNamespaceFunc, err := namespacePlugin.Lookup("Create")
+ if err != nil {
+ return pkgerrors.Wrap(err, "Error fetching create namespace plugin")
+ }
+ namespaceResource := &utils.ResourceData{
+ Namespace: namespace,
+ }
+
+ _, err = symGetNamespaceFunc.(func(*utils.ResourceData, kubernetes.Interface) (string, error))(
+ namespaceResource, kubeclient)
+ if err != nil {
+ return pkgerrors.Wrap(err, "Error creating "+namespace+" namespace")
+ }
+ }
+ return nil
+}
+
+// CreateVNF reads the CSAR files from the files system and creates them one by one
+var CreateVNF = func(csarID string, cloudRegionID string, namespace string, kubeclient *kubernetes.Clientset) (string, map[string][]string, error) {
+ if err := ensuresNamespace(namespace, kubeclient); err != nil {
+ return "", nil, pkgerrors.Wrap(err, "Error while ensuring namespace: "+namespace)
+ }
+ externalVNFID := generateExternalVNFID()
+ internalVNFID := cloudRegionID + "-" + namespace + "-" + externalVNFID
+
+ csarDirPath := os.Getenv("CSAR_DIR") + "/" + csarID
+ metadataYAMLPath := csarDirPath + "/metadata.yaml"
+
+ log.Println("Reading " + metadataYAMLPath + " file")
+ metadataFile, err := ReadMetadataFile(metadataYAMLPath)
+ if err != nil {
+ return "", nil, pkgerrors.Wrap(err, "Error while reading Metadata File: "+metadataYAMLPath)
+ }
+
+ var path string
+ resourceYAMLNameMap := make(map[string][]string)
+ // Iterates over the resources defined in the metadata file to create kubernetes resources
+ log.Println(string(len(metadataFile.ResourceTypePathMap)) + " resource(s) type(s) to be processed")
+ for resource, fileNames := range metadataFile.ResourceTypePathMap {
+ log.Println("Processing items of " + string(resource) + " resource")
+ var resourcesCreated []string
+ for _, filename := range fileNames {
+ path = csarDirPath + "/" + filename
+
+ if _, err := os.Stat(path); os.IsNotExist(err) {
+ return "", nil, pkgerrors.New("File " + path + "does not exists")
+ }
+ log.Println("Processing file: " + path)
+
+ genericKubeData := &utils.ResourceData{
+ YamlFilePath: path,
+ Namespace: namespace,
+ VnfId: internalVNFID,
+ }
+
+ typePlugin, ok := utils.LoadedPlugins[resource]
+ if !ok {
+ return "", nil, pkgerrors.New("No plugin for resource " + resource + " found")
+ }
+
+ symCreateResourceFunc, err := typePlugin.Lookup("Create")
+ if err != nil {
+ return "", nil, pkgerrors.Wrap(err, "Error fetching "+resource+" plugin")
+ }
+
+ internalResourceName, err := symCreateResourceFunc.(func(*utils.ResourceData, kubernetes.Interface) (string, error))(
+ genericKubeData, kubeclient)
+ if err != nil {
+ return "", nil, pkgerrors.Wrap(err, "Error in plugin "+resource+" plugin")
+ }
+ log.Print(internalResourceName + " succesful resource created")
+ resourcesCreated = append(resourcesCreated, internalResourceName)
+ }
+ resourceYAMLNameMap[resource] = resourcesCreated
+ }
+
+ return externalVNFID, resourceYAMLNameMap, nil
+}
+
+// DestroyVNF deletes VNFs based on data passed
+var DestroyVNF = func(data map[string][]string, namespace string, kubeclient *kubernetes.Clientset) error {
+ /* data:
+ {
+ "deployment": ["cloud1-default-uuid-sisedeploy1", "cloud1-default-uuid-sisedeploy2", ... ]
+ "service": ["cloud1-default-uuid-sisesvc1", "cloud1-default-uuid-sisesvc2", ... ]
+ },
+ */
+
+ for resourceName, resourceList := range data {
+ typePlugin, ok := utils.LoadedPlugins[resourceName]
+ if !ok {
+ return pkgerrors.New("No plugin for resource " + resourceName + " found")
+ }
+
+ symDeleteResourceFunc, err := typePlugin.Lookup("Delete")
+ if err != nil {
+ return pkgerrors.Wrap(err, "Error fetching "+resourceName+" plugin")
+ }
+
+ for _, resourceName := range resourceList {
+
+ log.Println("Deleting resource: " + resourceName)
+
+ err = symDeleteResourceFunc.(func(string, string, kubernetes.Interface) error)(
+ resourceName, namespace, kubeclient)
+ if err != nil {
+ return pkgerrors.Wrap(err, "Error destroying "+resourceName)
+ }
+ }
+ }
+
+ return nil
+}
+
+// MetadataFile stores the metadata of execution
+type MetadataFile struct {
+ ResourceTypePathMap map[string][]string `yaml:"resources"`
+}
+
+// ReadMetadataFile reads the metadata yaml to return the order or reads
+var ReadMetadataFile = func(path string) (MetadataFile, error) {
+ var metadataFile MetadataFile
+
+ if _, err := os.Stat(path); os.IsNotExist(err) {
+ return metadataFile, pkgerrors.Wrap(err, "Metadata YAML file does not exist")
+ }
+
+ log.Println("Reading metadata YAML: " + path)
+ yamlFile, err := ioutil.ReadFile(path)
+ if err != nil {
+ return metadataFile, pkgerrors.Wrap(err, "Metadata YAML file read error")
+ }
+
+ err = yaml.Unmarshal(yamlFile, &metadataFile)
+ if err != nil {
+ return metadataFile, pkgerrors.Wrap(err, "Metadata YAML file unmarshal error")
+ }
+ log.Printf("metadata:\n%v", metadataFile)
+
+ return metadataFile, nil
+}
diff --git a/src/k8splugin/internal/app/vnfhelper_test.go b/src/k8splugin/internal/app/vnfhelper_test.go
new file mode 100644
index 00000000..81bea627
--- /dev/null
+++ b/src/k8splugin/internal/app/vnfhelper_test.go
@@ -0,0 +1,133 @@
+// +build integration
+
+/*
+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 app
+
+import (
+ "io/ioutil"
+ "log"
+ "os"
+ "plugin"
+ "testing"
+
+ yaml "gopkg.in/yaml.v2"
+ "k8s.io/client-go/kubernetes"
+
+ pkgerrors "github.com/pkg/errors"
+
+ utils "k8splugin/internal"
+)
+
+func LoadMockPlugins(krdLoadedPlugins *map[string]*plugin.Plugin) error {
+ if _, err := os.Stat("../../mock_files/mock_plugins/mockplugin.so"); os.IsNotExist(err) {
+ return pkgerrors.New("mockplugin.so does not exist. Please compile mockplugin.go to generate")
+ }
+
+ mockPlugin, err := plugin.Open("../../mock_files/mock_plugins/mockplugin.so")
+ if err != nil {
+ return pkgerrors.Cause(err)
+ }
+
+ (*krdLoadedPlugins)["namespace"] = mockPlugin
+ (*krdLoadedPlugins)["deployment"] = mockPlugin
+ (*krdLoadedPlugins)["service"] = mockPlugin
+
+ return nil
+}
+
+func TestCreateVNF(t *testing.T) {
+ oldkrdPluginData := utils.LoadedPlugins
+ oldReadMetadataFile := ReadMetadataFile
+
+ defer func() {
+ utils.LoadedPlugins = oldkrdPluginData
+ ReadMetadataFile = oldReadMetadataFile
+ }()
+
+ err := LoadMockPlugins(&utils.LoadedPlugins)
+ if err != nil {
+ t.Fatalf("TestCreateVNF returned an error (%s)", err)
+ }
+
+ ReadMetadataFile = func(yamlFilePath string) (MetadataFile, error) {
+ var seqFile MetadataFile
+
+ if _, err := os.Stat(yamlFilePath); err == nil {
+ rawBytes, err := ioutil.ReadFile("../../mock_files/mock_yamls/metadata.yaml")
+ if err != nil {
+ return seqFile, pkgerrors.Wrap(err, "Metadata YAML file read error")
+ }
+
+ err = yaml.Unmarshal(rawBytes, &seqFile)
+ if err != nil {
+ return seqFile, pkgerrors.Wrap(err, "Metadata YAML file unmarshall error")
+ }
+ }
+
+ return seqFile, nil
+ }
+
+ kubeclient := kubernetes.Clientset{}
+
+ t.Run("Successfully create VNF", func(t *testing.T) {
+ externaluuid, data, err := CreateVNF("uuid", "cloudregion1", "test", &kubeclient)
+ if err != nil {
+ t.Fatalf("TestCreateVNF returned an error (%s)", err)
+ }
+
+ log.Println(externaluuid)
+
+ if data == nil {
+ t.Fatalf("TestCreateVNF returned empty data (%s)", data)
+ }
+ })
+
+}
+
+func TestDeleteVNF(t *testing.T) {
+ oldkrdPluginData := utils.LoadedPlugins
+
+ defer func() {
+ utils.LoadedPlugins = oldkrdPluginData
+ }()
+
+ err := LoadMockPlugins(&utils.LoadedPlugins)
+ if err != nil {
+ t.Fatalf("TestCreateVNF returned an error (%s)", err)
+ }
+
+ kubeclient := kubernetes.Clientset{}
+
+ t.Run("Successfully delete VNF", func(t *testing.T) {
+ data := map[string][]string{
+ "deployment": []string{"cloud1-default-uuid-sisedeploy"},
+ "service": []string{"cloud1-default-uuid-sisesvc"},
+ }
+
+ err := DestroyVNF(data, "test", &kubeclient)
+ if err != nil {
+ t.Fatalf("TestCreateVNF returned an error (%s)", err)
+ }
+ })
+}
+
+func TestReadMetadataFile(t *testing.T) {
+ t.Run("Successfully read Metadata YAML file", func(t *testing.T) {
+ _, err := ReadMetadataFile("../../mock_files//mock_yamls/metadata.yaml")
+ if err != nil {
+ t.Fatalf("TestReadMetadataFile returned an error (%s)", err)
+ }
+ })
+}