117 lines
3.3 KiB
Go
117 lines
3.3 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package vclib
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import (
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"context"
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"net"
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neturl "net/url"
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"sync"
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"github.com/golang/glog"
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"github.com/vmware/govmomi/session"
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"github.com/vmware/govmomi/vim25"
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"github.com/vmware/govmomi/vim25/soap"
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)
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// VSphereConnection contains information for connecting to vCenter
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type VSphereConnection struct {
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Client *vim25.Client
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Username string
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Password string
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Hostname string
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Port string
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Insecure bool
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RoundTripperCount uint
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}
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var (
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clientLock sync.Mutex
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)
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// Connect makes connection to vCenter and sets VSphereConnection.Client.
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// If connection.Client is already set, it obtains the existing user session.
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// if user session is not valid, connection.Client will be set to the new client.
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func (connection *VSphereConnection) Connect(ctx context.Context) error {
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var err error
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clientLock.Lock()
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defer clientLock.Unlock()
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if connection.Client == nil {
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connection.Client, err = connection.NewClient(ctx)
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if err != nil {
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glog.Errorf("Failed to create govmomi client. err: %+v", err)
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return err
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}
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return nil
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}
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m := session.NewManager(connection.Client)
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userSession, err := m.UserSession(ctx)
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if err != nil {
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glog.Errorf("Error while obtaining user session. err: %+v", err)
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return err
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}
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if userSession != nil {
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return nil
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}
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glog.Warningf("Creating new client session since the existing session is not valid or not authenticated")
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connection.Client, err = connection.NewClient(ctx)
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if err != nil {
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glog.Errorf("Failed to create govmomi client. err: %+v", err)
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return err
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}
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return nil
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}
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// Logout calls SessionManager.Logout for the given connection.
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func (connection *VSphereConnection) Logout(ctx context.Context) {
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m := session.NewManager(connection.Client)
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if err := m.Logout(ctx); err != nil {
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glog.Errorf("Logout failed: %s", err)
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}
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}
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// NewClient creates a new govmomi client for the VSphereConnection obj
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func (connection *VSphereConnection) NewClient(ctx context.Context) (*vim25.Client, error) {
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url, err := soap.ParseURL(net.JoinHostPort(connection.Hostname, connection.Port))
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if err != nil {
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glog.Errorf("Failed to parse URL: %s. err: %+v", url, err)
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return nil, err
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}
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sc := soap.NewClient(url, connection.Insecure)
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client, err := vim25.NewClient(ctx, sc)
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if err != nil {
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glog.Errorf("Failed to create new client. err: %+v", err)
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return nil, err
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}
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m := session.NewManager(client)
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err = m.Login(ctx, neturl.UserPassword(connection.Username, connection.Password))
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if err != nil {
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return nil, err
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}
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if connection.RoundTripperCount == 0 {
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connection.RoundTripperCount = RoundTripperDefaultCount
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}
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client.RoundTripper = vim25.Retry(client.RoundTripper, vim25.TemporaryNetworkError(int(connection.RoundTripperCount)))
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return client, nil
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}
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