diff options
Diffstat (limited to 'src/rsync/pkg/connector')
| -rw-r--r-- | src/rsync/pkg/connector/connector.go | 168 |
1 files changed, 98 insertions, 70 deletions
diff --git a/src/rsync/pkg/connector/connector.go b/src/rsync/pkg/connector/connector.go index fc8aa839..2d15d7ec 100644 --- a/src/rsync/pkg/connector/connector.go +++ b/src/rsync/pkg/connector/connector.go @@ -1,94 +1,122 @@ /* - * Copyright 2019 Intel Corporation, Inc - * - * 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. - */ +Copyright 2020 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 connector import ( + "encoding/base64" + "fmt" "log" + "os" + "strings" + "sync" - corev1 "k8s.io/api/core/v1" - "k8s.io/apimachinery/pkg/api/meta" - "k8s.io/apimachinery/pkg/apis/meta/v1/unstructured" - "k8s.io/apimachinery/pkg/runtime" - "k8s.io/client-go/dynamic" - "k8s.io/client-go/kubernetes" + "github.com/onap/multicloud-k8s/src/clm/pkg/cluster" + kubeclient "github.com/onap/multicloud-k8s/src/rsync/pkg/client" + pkgerrors "github.com/pkg/errors" ) -// KubernetesConnector is an interface that is expected to be implemented -// by any code that calls the plugin framework functions. -// It implements methods that are needed by the plugins to get Kubernetes -// clients and other information needed to interface with Kubernetes -type KubernetesConnector interface { - //GetMapper returns the RESTMapper that was created for this client - GetMapper() meta.RESTMapper - - //GetDynamicClient returns the dynamic client that is needed for - //unstructured REST calls to the apiserver - GetDynamicClient() dynamic.Interface +type Connector struct { + cid string + Clients map[string]*kubeclient.Client + sync.Mutex +} - // GetStandardClient returns the standard client that can be used to handle - // standard kubernetes kinds - GetStandardClient() kubernetes.Interface +const basePath string = "/tmp/rsync/" - //GetInstanceID returns the InstanceID for tracking during creation - GetInstanceID() string +// Init connector for an app context +func Init(id interface{}) *Connector { + c := make(map[string]*kubeclient.Client) + str := fmt.Sprintf("%v", id) + return &Connector{ + Clients: c, + cid: str, + } } -// Reference is the interface that is implemented -type Reference interface { - //Create a kubernetes resource described by the yaml in yamlFilePath - Create(yamlFilePath string, namespace string, label string, client KubernetesConnector) (string, error) - //Delete a kubernetes resource described in the provided namespace - Delete(yamlFilePath string, resname string, namespace string, client KubernetesConnector) error +// getKubeConfig uses the connectivity client to get the kubeconfig based on the name +// of the clustername. +func getKubeConfig(clustername string) ([]byte, error) { + if !strings.Contains(clustername, "+") { + return nil, pkgerrors.New("Not a valid cluster name") + } + strs := strings.Split(clustername, "+") + if len(strs) != 2 { + return nil, pkgerrors.New("Not a valid cluster name") + } + kubeConfig, err := cluster.NewClusterClient().GetClusterContent(strs[0], strs[1]) + if err != nil { + return nil, pkgerrors.New("Get kubeconfig failed") + } + dec, err := base64.StdEncoding.DecodeString(kubeConfig.Kubeconfig) + if err != nil { + return nil, err + } + return dec, nil } -// TagPodsIfPresent finds the PodTemplateSpec from any workload -// object that contains it and changes the spec to include the tag label -func TagPodsIfPresent(unstruct *unstructured.Unstructured, tag string) { +// GetClient returns client for the cluster +func (c *Connector) GetClient(cluster string) (*kubeclient.Client, error) { + c.Lock() + defer c.Unlock() - spec, ok := unstruct.Object["spec"].(map[string]interface{}) + client, ok := c.Clients[cluster] if !ok { - log.Println("Error converting spec to map") - return - } - - template, ok := spec["template"].(map[string]interface{}) - if !ok { - log.Println("Error converting template to map") - return + // Get file from DB + dec, err := getKubeConfig(cluster) + if err != nil { + return nil, err + } + var kubeConfigPath string = basePath + c.cid + "/" + cluster + "/" + if _, err := os.Stat(kubeConfigPath); os.IsNotExist(err) { + err = os.MkdirAll(kubeConfigPath, 0755) + if err != nil { + return nil, err + } + } + kubeConfig := kubeConfigPath + "config" + f, err := os.Create(kubeConfig) + if err != nil { + return nil, err + } + _, err = f.Write(dec) + if err != nil { + return nil, err + } + client = kubeclient.New("", kubeConfig, "default") + if client != nil { + c.Clients[cluster] = client + } } + return client, nil +} - //Attempt to convert the template to a podtemplatespec. - //This is to check if we have any pods being created. - podTemplateSpec := &corev1.PodTemplateSpec{} - err := runtime.DefaultUnstructuredConverter.FromUnstructured(template, podTemplateSpec) +func (c *Connector) GetClientWithRetry(cluster string) (*kubeclient.Client, error) { + client, err := c.GetClient(cluster) if err != nil { - log.Println("Did not find a podTemplateSpec: " + err.Error()) - return + return nil, err } - - labels := podTemplateSpec.GetLabels() - if labels == nil { - labels = map[string]string{} + if err = client.IsReachable(); err != nil { + return nil, err // TODO: Add retry } - labels["emco/deployment-id"] = tag - podTemplateSpec.SetLabels(labels) - - updatedTemplate, err := runtime.DefaultUnstructuredConverter.ToUnstructured(podTemplateSpec) + return client, nil +} - //Set the label - spec["template"] = updatedTemplate +func (c *Connector) RemoveClient() { + c.Lock() + defer c.Unlock() + err := os.RemoveAll(basePath + "/" + c.cid) + if err != nil { + log.Printf("Warning: Deleting kubepath %s", err) + } } |