mirror of
https://github.com/vmware-tanzu/velero.git
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48792ece1f
* update import paths to github.com/vmware-tanzu/... Signed-off-by: Steve Kriss <krisss@vmware.com> * update other GH org refs to vmware-tanzu Signed-off-by: Steve Kriss <krisss@vmware.com> * site and docs: update GH org to vmware-tanzu Signed-off-by: Steve Kriss <krisss@vmware.com> * update travis badge links on docs readmes Signed-off-by: Steve Kriss <krisss@vmware.com>
86 lines
3.2 KiB
Go
86 lines
3.2 KiB
Go
/*
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Copyright 2018, 2019 the Velero contributors.
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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 clientmgmt contains the plugin client for Velero.
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package clientmgmt
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import (
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"os"
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"os/exec"
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"github.com/hashicorp/go-hclog"
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hcplugin "github.com/hashicorp/go-plugin"
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"github.com/sirupsen/logrus"
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"github.com/vmware-tanzu/velero/pkg/features"
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"github.com/vmware-tanzu/velero/pkg/plugin/framework"
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)
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// clientBuilder builds go-plugin Clients.
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type clientBuilder struct {
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commandName string
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commandArgs []string
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clientLogger logrus.FieldLogger
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pluginLogger hclog.Logger
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}
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// newClientBuilder returns a new clientBuilder with commandName to name. If the command matches the currently running
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// process (i.e. velero), this also sets commandArgs to the internal Velero command to run plugins.
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func newClientBuilder(command string, logger logrus.FieldLogger, logLevel logrus.Level) *clientBuilder {
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b := &clientBuilder{
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commandName: command,
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clientLogger: logger,
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pluginLogger: newLogrusAdapter(logger, logLevel),
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}
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if command == os.Args[0] {
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// For plugins compiled into the velero executable, we need to run "velero run-plugins"
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b.commandArgs = []string{"run-plugins"}
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}
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b.commandArgs = append(b.commandArgs, "--log-level", logLevel.String())
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if len(features.All()) > 0 {
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b.commandArgs = append(b.commandArgs, "--features", features.Serialize())
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}
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return b
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}
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func newLogrusAdapter(pluginLogger logrus.FieldLogger, logLevel logrus.Level) *logrusAdapter {
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return &logrusAdapter{impl: pluginLogger, level: logLevel}
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}
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func (b *clientBuilder) clientConfig() *hcplugin.ClientConfig {
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return &hcplugin.ClientConfig{
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HandshakeConfig: framework.Handshake(),
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AllowedProtocols: []hcplugin.Protocol{hcplugin.ProtocolGRPC},
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Plugins: map[string]hcplugin.Plugin{
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string(framework.PluginKindBackupItemAction): framework.NewBackupItemActionPlugin(framework.ClientLogger(b.clientLogger)),
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string(framework.PluginKindVolumeSnapshotter): framework.NewVolumeSnapshotterPlugin(framework.ClientLogger(b.clientLogger)),
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string(framework.PluginKindObjectStore): framework.NewObjectStorePlugin(framework.ClientLogger(b.clientLogger)),
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string(framework.PluginKindPluginLister): &framework.PluginListerPlugin{},
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string(framework.PluginKindRestoreItemAction): framework.NewRestoreItemActionPlugin(framework.ClientLogger(b.clientLogger)),
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},
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Logger: b.pluginLogger,
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Cmd: exec.Command(b.commandName, b.commandArgs...),
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}
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}
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// client creates a new go-plugin Client with support for all of Velero's plugin kinds (BackupItemAction, VolumeSnapshotter,
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// ObjectStore, PluginLister, RestoreItemAction).
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func (b *clientBuilder) client() *hcplugin.Client {
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return hcplugin.NewClient(b.clientConfig())
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}
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