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vicadminProxyVarRename.go
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vicadminProxyVarRename.go
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// Copyright 2017 VMware, Inc. All Rights Reserved.
//
// 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 plugin7
import (
"context"
"fmt"
"strings"
log "github.com/sirupsen/logrus"
"github.com/vmware/vic/lib/migration/errors"
"github.com/vmware/vic/lib/migration/feature"
"github.com/vmware/vic/lib/migration/manager"
"github.com/vmware/vic/pkg/trace"
"github.com/vmware/vic/pkg/vsphere/extraconfig"
"github.com/vmware/vic/pkg/vsphere/session"
)
// Translates the proxy environment variables from the old appliance to the new appliance for vic admin
const (
target = manager.ApplianceConfigure
oldHProxy = "HTTP_PROXY"
newHProxy = "VICADMIN_HTTP_PROXY"
oldSProxy = "HTTPS_PROXY"
newSProxy = "VICADMIN_HTTPS_PROXY"
sessionName = "vicadmin"
)
func init() {
defer trace.End(trace.Begin(fmt.Sprintf("Registering plugin %s:%d", target, feature.VicadminProxyVarRenameVersion)))
if err := manager.Migrator.Register(feature.VicadminProxyVarRenameVersion, target, &VicadminProxyVarRename{}); err != nil {
log.Errorf("Failed to register plugin %s:%d, %s", target, feature.VicadminProxyVarRenameVersion, err)
}
}
// VicadminProxyVarRename is plugin for vic 0.8.0-GA version upgrade
type VicadminProxyVarRename struct {
}
type VCHConfig struct {
ExecutorConfig `vic:"0.1" scope:"read-only" key:"init"`
}
type ExecutorConfig struct {
Sessions map[string]*SessionConfig `vic:"0.1" scope:"read-only" key:"sessions"`
}
type SessionConfig struct {
Cmd Cmd `vic:"0.1" scope:"read-only" key:"cmd"`
}
type Cmd struct {
Env []string `vic:"0.1" scope:"read-only" key:"Env"`
}
func (p *VicadminProxyVarRename) Migrate(ctx context.Context, s *session.Session, data interface{}) error {
defer trace.End(trace.Begin(fmt.Sprintf("%d", feature.VicadminProxyVarRenameVersion)))
if data == nil {
return nil
}
mapData := data.(map[string]string)
oldStruct := &VCHConfig{}
result := extraconfig.Decode(extraconfig.MapSource(mapData), oldStruct)
if result == nil {
return &errors.DecodeError{}
}
// translate old proxy env var keys into to proxy env var keys
// skip upgrading if the proxy isn't defined or something is wrong with the the vicadmin executor
if oldStruct.Sessions == nil || oldStruct.Sessions[sessionName] == nil || oldStruct.Sessions[sessionName].Cmd.Env == nil {
log.Debugln("vicadmin session not found. skipping proxy rename")
} else {
var newEnvs []string
for _, envVar := range oldStruct.Sessions[sessionName].Cmd.Env {
envVarArgs := strings.Split(envVar, "=")
envVarValue := ""
if len(envVarArgs) > 1 {
envVarValue = envVarArgs[1]
}
if strings.Contains(envVar, oldHProxy) {
newEnvs = append(newEnvs, fmt.Sprintf("%s=%s", newHProxy, envVarValue))
} else if strings.Contains(envVar, oldSProxy) {
newEnvs = append(newEnvs, fmt.Sprintf("%s=%s", newSProxy, envVarValue))
} else {
newEnvs = append(newEnvs, envVar)
}
}
oldStruct.Sessions[sessionName].Cmd.Env = newEnvs
}
cfg := make(map[string]string)
extraconfig.Encode(extraconfig.MapSink(cfg), oldStruct)
for k, v := range cfg {
log.Debugf("New data: %s:%s", k, v)
mapData[k] = v
}
return nil
}