/
wssd.go
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/
wssd.go
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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the Apache v2.0 License.
package etcdserver
import (
"context"
"fmt"
"github.com/microsoft/moc-sdk-for-go/services/cloud/etcdcluster"
wssdcloudclient "github.com/microsoft/moc-sdk-for-go/pkg/client"
"github.com/microsoft/moc/pkg/auth"
"github.com/microsoft/moc/pkg/errors"
wssdcloudcloud "github.com/microsoft/moc/rpc/cloudagent/cloud"
wssdcloudcommon "github.com/microsoft/moc/rpc/common"
)
type client struct {
wssdcloudcloud.EtcdServerAgentClient
}
// NewEtcdServerClient - creates a client session with the backend wssdcloud agent
func newEtcdServerClient(subID string, authorizer auth.Authorizer) (*client, error) {
c, err := wssdcloudclient.GetEtcdServerClient(&subID, authorizer)
if err != nil {
return nil, err
}
return &client{c}, nil
}
// Get
func (c *client) Get(ctx context.Context, group, name, clusterName string) (*[]etcdcluster.EtcdServer, error) {
request, err := getEtcdServerRequest(wssdcloudcommon.Operation_GET, name, clusterName, nil)
if err != nil {
return nil, err
}
response, err := c.EtcdServerAgentClient.Invoke(ctx, request)
if err != nil {
return nil, err
}
return getEtcdServersFromResponse(response, clusterName), nil
}
// CreateOrUpdate
func (c *client) CreateOrUpdate(ctx context.Context, group, name string, server *etcdcluster.EtcdServer) (*etcdcluster.EtcdServer, error) {
err := c.validate(ctx, group, name, server)
if err != nil {
return nil, err
}
request, err := getEtcdServerRequest(wssdcloudcommon.Operation_POST, name, *server.ClusterName, server)
if err != nil {
return nil, err
}
response, err := c.EtcdServerAgentClient.Invoke(ctx, request)
if err != nil {
return nil, errors.Wrapf(err, "EtcdServer Create failed")
}
servers := getEtcdServersFromResponse(response, *server.ClusterName)
if len(*servers) == 0 {
return nil, fmt.Errorf("[EtcdServer][Create] Unexpected error: Creating an etcdserver returned no result")
}
return &((*servers)[0]), err
}
func (c *client) validate(ctx context.Context, group, name string, server *etcdcluster.EtcdServer) (err error) {
if server == nil || server.ClusterName == nil {
return errors.Wrapf(errors.InvalidInput, "Invalid Configuration")
}
if len(*server.ClusterName) == 0 {
return errors.Wrapf(errors.InvalidInput, "Missing Cluster Name")
}
if server.ClientPort == 0 {
return errors.Wrapf(errors.InvalidInput, "Missing ClientPort")
}
if len(*server.Fqdn) == 0 {
return errors.Wrapf(errors.InvalidInput, "Missing Fqdn")
}
if server.Name == nil {
server.Name = &name
}
return nil
}
// Delete
func (c *client) Delete(ctx context.Context, group, name, clusterName string) error {
etcdserver, err := c.Get(ctx, group, name, clusterName)
if err != nil {
return err
}
if len(*etcdserver) == 0 {
return fmt.Errorf("etcdserver [%s] not found", name)
}
request, err := getEtcdServerRequest(wssdcloudcommon.Operation_DELETE, name, clusterName, &(*etcdserver)[0])
if err != nil {
return err
}
_, err = c.EtcdServerAgentClient.Invoke(ctx, request)
return err
}
func getEtcdServersFromResponse(response *wssdcloudcloud.EtcdServerResponse, clusterName string) *[]etcdcluster.EtcdServer {
etcdServers := []etcdcluster.EtcdServer{}
for _, etcdservers := range response.GetEtcdServers() {
etcdServers = append(etcdServers, *(getEtcdServer(etcdservers, clusterName)))
}
return &etcdServers
}
func getEtcdServerRequest(opType wssdcloudcommon.Operation, name, clusterName string, server *etcdcluster.EtcdServer) (*wssdcloudcloud.EtcdServerRequest, error) {
request := &wssdcloudcloud.EtcdServerRequest{
OperationType: opType,
EtcdServers: []*wssdcloudcloud.EtcdServer{},
}
if server != nil {
etcdserver, err := getWssdEtcdServer(server, opType)
if err != nil {
return nil, err
}
request.EtcdServers = append(request.EtcdServers, etcdserver)
} else if len(name) > 0 { // TODO for some operations we will need more attributes
request.EtcdServers = append(request.EtcdServers,
&wssdcloudcloud.EtcdServer{
Name: name,
EtcdClusterName: clusterName,
})
} else { // TODO for some operations we will need more attributes
request.EtcdServers = append(request.EtcdServers,
&wssdcloudcloud.EtcdServer{
EtcdClusterName: clusterName,
})
}
return request, nil
}