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builder.go
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builder.go
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// The alicloud contains a packer.Builder implementation that
// builds ecs images for alicloud.
package ecs
import (
"log"
"fmt"
"github.com/hashicorp/packer/common"
"github.com/hashicorp/packer/helper/communicator"
"github.com/hashicorp/packer/helper/config"
"github.com/hashicorp/packer/packer"
"github.com/hashicorp/packer/template/interpolate"
"github.com/mitchellh/multistep"
)
// The unique ID for this builder
const BuilderId = "alibaba.alicloud"
type Config struct {
common.PackerConfig `mapstructure:",squash"`
AlicloudAccessConfig `mapstructure:",squash"`
AlicloudImageConfig `mapstructure:",squash"`
RunConfig `mapstructure:",squash"`
ctx interpolate.Context
}
type Builder struct {
config Config
runner multistep.Runner
}
type InstanceNetWork string
const (
ClassicNet = InstanceNetWork("classic")
VpcNet = InstanceNetWork("vpc")
ALICLOUD_DEFAULT_SHORT_TIMEOUT = 180
ALICLOUD_DEFAULT_TIMEOUT = 1800
ALICLOUD_DEFAULT_LONG_TIMEOUT = 3600
)
func (b *Builder) Prepare(raws ...interface{}) ([]string, error) {
err := config.Decode(&b.config, &config.DecodeOpts{
Interpolate: true,
InterpolateContext: &b.config.ctx,
InterpolateFilter: &interpolate.RenderFilter{
Exclude: []string{
"run_command",
},
},
}, raws...)
b.config.ctx.EnableEnv = true
if err != nil {
return nil, err
}
// Accumulate any errors
var errs *packer.MultiError
errs = packer.MultiErrorAppend(errs, b.config.AlicloudAccessConfig.Prepare(&b.config.ctx)...)
errs = packer.MultiErrorAppend(errs, b.config.AlicloudImageConfig.Prepare(&b.config.ctx)...)
errs = packer.MultiErrorAppend(errs, b.config.RunConfig.Prepare(&b.config.ctx)...)
if errs != nil && len(errs.Errors) > 0 {
return nil, errs
}
log.Println(common.ScrubConfig(b.config, b.config.AlicloudAccessKey, b.config.AlicloudSecretKey))
return nil, nil
}
func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packer.Artifact, error) {
client, err := b.config.Client()
if err != nil {
return nil, err
}
state := new(multistep.BasicStateBag)
state.Put("config", b.config)
state.Put("client", client)
state.Put("hook", hook)
state.Put("ui", ui)
state.Put("networktype", b.chooseNetworkType())
var steps []multistep.Step
// Build the steps
steps = []multistep.Step{
&stepPreValidate{
AlicloudDestImageName: b.config.AlicloudImageName,
ForceDelete: b.config.AlicloudImageForceDetele,
},
&stepCheckAlicloudSourceImage{
SourceECSImageId: b.config.AlicloudSourceImage,
},
&StepConfigAlicloudKeyPair{
Debug: b.config.PackerDebug,
KeyPairName: b.config.SSHKeyPairName,
PrivateKeyFile: b.config.Comm.SSHPrivateKey,
TemporaryKeyPairName: b.config.TemporaryKeyPairName,
SSHAgentAuth: b.config.Comm.SSHAgentAuth,
DebugKeyPath: fmt.Sprintf("ecs_%s.pem", b.config.PackerBuildName),
RegionId: b.config.AlicloudRegion,
},
}
if b.chooseNetworkType() == VpcNet {
steps = append(steps,
&stepConfigAlicloudVPC{
VpcId: b.config.VpcId,
CidrBlock: b.config.CidrBlock,
VpcName: b.config.VpcName,
},
&stepConfigAlicloudVSwitch{
VSwitchId: b.config.VSwitchId,
ZoneId: b.config.ZoneId,
CidrBlock: b.config.CidrBlock,
VSwitchName: b.config.VSwitchName,
})
}
steps = append(steps,
&stepConfigAlicloudSecurityGroup{
SecurityGroupId: b.config.SecurityGroupId,
SecurityGroupName: b.config.SecurityGroupId,
RegionId: b.config.AlicloudRegion,
},
&stepCreateAlicloudInstance{
IOOptimized: b.config.IOOptimized,
InstanceType: b.config.InstanceType,
UserData: b.config.UserData,
UserDataFile: b.config.UserDataFile,
RegionId: b.config.AlicloudRegion,
InternetChargeType: b.config.InternetChargeType,
InternetMaxBandwidthOut: b.config.InternetMaxBandwidthOut,
InstnaceName: b.config.InstanceName,
ZoneId: b.config.ZoneId,
})
if b.chooseNetworkType() == VpcNet {
steps = append(steps, &setpConfigAlicloudEIP{
AssociatePublicIpAddress: b.config.AssociatePublicIpAddress,
RegionId: b.config.AlicloudRegion,
InternetChargeType: b.config.InternetChargeType,
})
} else {
steps = append(steps, &stepConfigAlicloudPublicIP{
RegionId: b.config.AlicloudRegion,
})
}
steps = append(steps,
&stepRunAlicloudInstance{},
&stepMountAlicloudDisk{},
&stepAttachKeyPar{},
&communicator.StepConnect{
Config: &b.config.RunConfig.Comm,
Host: SSHHost(
client,
b.config.SSHPrivateIp),
SSHConfig: SSHConfig(
b.config.RunConfig.Comm.SSHAgentAuth,
b.config.RunConfig.Comm.SSHUsername,
b.config.RunConfig.Comm.SSHPassword),
},
&common.StepProvision{},
&stepStopAlicloudInstance{
ForceStop: b.config.ForceStopInstance,
},
&stepDeleteAlicloudImageSnapshots{
AlicloudImageForceDeteleSnapshots: b.config.AlicloudImageForceDeteleSnapshots,
AlicloudImageForceDetele: b.config.AlicloudImageForceDetele,
AlicloudImageName: b.config.AlicloudImageName,
},
&stepCreateAlicloudImage{},
&setpRegionCopyAlicloudImage{
AlicloudImageDestinationRegions: b.config.AlicloudImageDestinationRegions,
AlicloudImageDestinationNames: b.config.AlicloudImageDestinationNames,
RegionId: b.config.AlicloudRegion,
},
&setpShareAlicloudImage{
AlicloudImageShareAccounts: b.config.AlicloudImageShareAccounts,
AlicloudImageUNShareAccounts: b.config.AlicloudImageUNShareAccounts,
RegionId: b.config.AlicloudRegion,
})
// Run!
b.runner = common.NewRunner(steps, b.config.PackerConfig, ui)
b.runner.Run(state)
// If there was an error, return that
if rawErr, ok := state.GetOk("error"); ok {
return nil, rawErr.(error)
}
// If there are no ECS images, then just return
if _, ok := state.GetOk("alicloudimages"); !ok {
return nil, nil
}
// Build the artifact and return it
artifact := &Artifact{
AlicloudImages: state.Get("alicloudimages").(map[string]string),
BuilderIdValue: BuilderId,
Client: client,
}
return artifact, nil
}
func (b *Builder) Cancel() {
if b.runner != nil {
log.Println("Cancelling the step runner...")
b.runner.Cancel()
}
}
func (b *Builder) chooseNetworkType() InstanceNetWork {
if b.isVpcNetRequired() {
return VpcNet
} else {
return ClassicNet
}
}
func (b *Builder) isVpcNetRequired() bool {
// UserData and KeyPair only works in VPC
return b.isVpcSpecified() || b.isUserDataNeeded() || b.isKeyPairNeeded()
}
func (b *Builder) isVpcSpecified() bool {
return b.config.VpcId != "" || b.config.VSwitchId != ""
}
func (b *Builder) isUserDataNeeded() bool {
// Public key setup requires userdata
if b.config.RunConfig.Comm.SSHPrivateKey != "" {
return true
}
return b.config.UserData != "" || b.config.UserDataFile != ""
}
func (b *Builder) isKeyPairNeeded() bool {
return b.config.SSHKeyPairName != "" || b.config.TemporaryKeyPairName != ""
}