mirror of
https://github.com/Oxalide/vsphere-influxdb-go.git
synced 2023-10-10 13:36:51 +02:00
142 lines
3.2 KiB
Go
142 lines
3.2 KiB
Go
/*
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Copyright (c) 2014-2015 VMware, Inc. All Rights Reserved.
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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 flags
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import (
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"context"
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"flag"
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"fmt"
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"os"
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"github.com/vmware/govmomi/object"
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)
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type HostSystemFlag struct {
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common
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*ClientFlag
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*DatacenterFlag
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*SearchFlag
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name string
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host *object.HostSystem
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pool *object.ResourcePool
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}
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var hostSystemFlagKey = flagKey("hostSystem")
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func NewHostSystemFlag(ctx context.Context) (*HostSystemFlag, context.Context) {
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if v := ctx.Value(hostSystemFlagKey); v != nil {
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return v.(*HostSystemFlag), ctx
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}
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v := &HostSystemFlag{}
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v.ClientFlag, ctx = NewClientFlag(ctx)
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v.DatacenterFlag, ctx = NewDatacenterFlag(ctx)
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v.SearchFlag, ctx = NewSearchFlag(ctx, SearchHosts)
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ctx = context.WithValue(ctx, hostSystemFlagKey, v)
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return v, ctx
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}
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func (flag *HostSystemFlag) Register(ctx context.Context, f *flag.FlagSet) {
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flag.RegisterOnce(func() {
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flag.ClientFlag.Register(ctx, f)
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flag.DatacenterFlag.Register(ctx, f)
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flag.SearchFlag.Register(ctx, f)
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env := "GOVC_HOST"
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value := os.Getenv(env)
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usage := fmt.Sprintf("Host system [%s]", env)
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f.StringVar(&flag.name, "host", value, usage)
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})
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}
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func (flag *HostSystemFlag) Process(ctx context.Context) error {
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return flag.ProcessOnce(func() error {
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if err := flag.ClientFlag.Process(ctx); err != nil {
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return err
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}
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if err := flag.DatacenterFlag.Process(ctx); err != nil {
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return err
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}
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if err := flag.SearchFlag.Process(ctx); err != nil {
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return err
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}
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return nil
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})
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}
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func (flag *HostSystemFlag) HostSystemIfSpecified() (*object.HostSystem, error) {
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if flag.host != nil {
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return flag.host, nil
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}
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// Use search flags if specified.
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if flag.SearchFlag.IsSet() {
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host, err := flag.SearchFlag.HostSystem()
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if err != nil {
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return nil, err
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}
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flag.host = host
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return flag.host, nil
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}
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// Never look for a default host system.
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// A host system parameter is optional for vm creation. It uses a mandatory
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// resource pool parameter to determine where the vm should be placed.
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if flag.name == "" {
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return nil, nil
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}
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finder, err := flag.Finder()
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if err != nil {
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return nil, err
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}
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flag.host, err = finder.HostSystem(context.TODO(), flag.name)
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return flag.host, err
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}
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func (flag *HostSystemFlag) HostSystem() (*object.HostSystem, error) {
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host, err := flag.HostSystemIfSpecified()
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if err != nil {
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return nil, err
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}
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if host != nil {
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return host, nil
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}
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finder, err := flag.Finder()
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if err != nil {
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return nil, err
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}
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flag.host, err = finder.DefaultHostSystem(context.TODO())
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return flag.host, err
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}
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func (flag *HostSystemFlag) HostNetworkSystem() (*object.HostNetworkSystem, error) {
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host, err := flag.HostSystem()
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if err != nil {
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return nil, err
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}
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return host.ConfigManager().NetworkSystem(context.TODO())
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}
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