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Initial plugin for building XenServer images using Packer.IO

Browse Source 
Signed-off-by: Rob Dobson <rob.dobson@citrix.com>
This commit is contained in:
Rob Dobson 2014-11-10 18:16:02 +00:00
parent 56820d268c
commit 4d634aaf70
17 changed files with 2177 additions and 20 deletions
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2
.gitignore vendored Normal file
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*.swp
*~

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Mozilla Public License Version 2.0
==================================
1. Definitions
--------------
1.1. "Contributor"
means each individual or legal entity that creates, contributes to
the creation of, or owns Covered Software.
1.2. "Contributor Version"
means the combination of the Contributions of others (if any) used
by a Contributor and that particular Contributor's Contribution.
1.3. "Contribution"
means Covered Software of a particular Contributor.
1.4. "Covered Software"
means Source Code Form to which the initial Contributor has attached
the notice in Exhibit A, the Executable Form of such Source Code
Form, and Modifications of such Source Code Form, in each case
including portions thereof.
1.5. "Incompatible With Secondary Licenses"
means
(a) that the initial Contributor has attached the notice described
in Exhibit B to the Covered Software; or
(b) that the Covered Software was made available under the terms of
version 1.1 or earlier of the License, but not also under the
terms of a Secondary License.
1.6. "Executable Form"
means any form of the work other than Source Code Form.
1.7. "Larger Work"
means a work that combines Covered Software with other material, in
a separate file or files, that is not Covered Software.
1.8. "License"
means this document.
1.9. "Licensable"
means having the right to grant, to the maximum extent possible,
whether at the time of the initial grant or subsequently, any and
all of the rights conveyed by this License.
1.10. "Modifications"
means any of the following:
(a) any file in Source Code Form that results from an addition to,
deletion from, or modification of the contents of Covered
Software; or
(b) any new file in Source Code Form that contains any Covered
Software.
1.11. "Patent Claims" of a Contributor
means any patent claim(s), including without limitation, method,
process, and apparatus claims, in any patent Licensable by such
Contributor that would be infringed, but for the grant of the
License, by the making, using, selling, offering for sale, having
made, import, or transfer of either its Contributions or its
Contributor Version.
1.12. "Secondary License"
means either the GNU General Public License, Version 2.0, the GNU
Lesser General Public License, Version 2.1, the GNU Affero General
Public License, Version 3.0, or any later versions of those
licenses.
1.13. "Source Code Form"
means the form of the work preferred for making modifications.
1.14. "You" (or "Your")
means an individual or a legal entity exercising rights under this
License. For legal entities, "You" includes any entity that
controls, is controlled by, or is under common control with You. For
purposes of this definition, "control" means (a) the power, direct
or indirect, to cause the direction or management of such entity,
whether by contract or otherwise, or (b) ownership of more than
fifty percent (50%) of the outstanding shares or beneficial
ownership of such entity.
2. License Grants and Conditions
--------------------------------
2.1. Grants
Each Contributor hereby grants You a world-wide, royalty-free,
non-exclusive license:
(a) under intellectual property rights (other than patent or trademark)
Licensable by such Contributor to use, reproduce, make available,
modify, display, perform, distribute, and otherwise exploit its
Contributions, either on an unmodified basis, with Modifications, or
as part of a Larger Work; and
(b) under Patent Claims of such Contributor to make, use, sell, offer
for sale, have made, import, and otherwise transfer either its
Contributions or its Contributor Version.
2.2. Effective Date
The licenses granted in Section 2.1 with respect to any Contribution
become effective for each Contribution on the date the Contributor first
distributes such Contribution.
2.3. Limitations on Grant Scope
The licenses granted in this Section 2 are the only rights granted under
this License. No additional rights or licenses will be implied from the
distribution or licensing of Covered Software under this License.
Notwithstanding Section 2.1(b) above, no patent license is granted by a
Contributor:
(a) for any code that a Contributor has removed from Covered Software;
or
(b) for infringements caused by: (i) Your and any other third party's
modifications of Covered Software, or (ii) the combination of its
Contributions with other software (except as part of its Contributor
Version); or
(c) under Patent Claims infringed by Covered Software in the absence of
its Contributions.
This License does not grant any rights in the trademarks, service marks,
or logos of any Contributor (except as may be necessary to comply with
the notice requirements in Section 3.4).
2.4. Subsequent Licenses
No Contributor makes additional grants as a result of Your choice to
distribute the Covered Software under a subsequent version of this
License (see Section 10.2) or under the terms of a Secondary License (if
permitted under the terms of Section 3.3).
2.5. Representation
Each Contributor represents that the Contributor believes its
Contributions are its original creation(s) or it has sufficient rights
to grant the rights to its Contributions conveyed by this License.
2.6. Fair Use
This License is not intended to limit any rights You have under
applicable copyright doctrines of fair use, fair dealing, or other
equivalents.
2.7. Conditions
Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
in Section 2.1.
3. Responsibilities
-------------------
3.1. Distribution of Source Form
All distribution of Covered Software in Source Code Form, including any
Modifications that You create or to which You contribute, must be under
the terms of this License. You must inform recipients that the Source
Code Form of the Covered Software is governed by the terms of this
License, and how they can obtain a copy of this License. You may not
attempt to alter or restrict the recipients' rights in the Source Code
Form.
3.2. Distribution of Executable Form
If You distribute Covered Software in Executable Form then:
(a) such Covered Software must also be made available in Source Code
Form, as described in Section 3.1, and You must inform recipients of
the Executable Form how they can obtain a copy of such Source Code
Form by reasonable means in a timely manner, at a charge no more
than the cost of distribution to the recipient; and
(b) You may distribute such Executable Form under the terms of this
License, or sublicense it under different terms, provided that the
license for the Executable Form does not attempt to limit or alter
the recipients' rights in the Source Code Form under this License.
3.3. Distribution of a Larger Work
You may create and distribute a Larger Work under terms of Your choice,
provided that You also comply with the requirements of this License for
the Covered Software. If the Larger Work is a combination of Covered
Software with a work governed by one or more Secondary Licenses, and the
Covered Software is not Incompatible With Secondary Licenses, this
License permits You to additionally distribute such Covered Software
under the terms of such Secondary License(s), so that the recipient of
the Larger Work may, at their option, further distribute the Covered
Software under the terms of either this License or such Secondary
License(s).
3.4. Notices
You may not remove or alter the substance of any license notices
(including copyright notices, patent notices, disclaimers of warranty,
or limitations of liability) contained within the Source Code Form of
the Covered Software, except that You may alter any license notices to
the extent required to remedy known factual inaccuracies.
3.5. Application of Additional Terms
You may choose to offer, and to charge a fee for, warranty, support,
indemnity or liability obligations to one or more recipients of Covered
Software. However, You may do so only on Your own behalf, and not on
behalf of any Contributor. You must make it absolutely clear that any
such warranty, support, indemnity, or liability obligation is offered by
You alone, and You hereby agree to indemnify every Contributor for any
liability incurred by such Contributor as a result of warranty, support,
indemnity or liability terms You offer. You may include additional
disclaimers of warranty and limitations of liability specific to any
jurisdiction.
4. Inability to Comply Due to Statute or Regulation
---------------------------------------------------
If it is impossible for You to comply with any of the terms of this
License with respect to some or all of the Covered Software due to
statute, judicial order, or regulation then You must: (a) comply with
the terms of this License to the maximum extent possible; and (b)
describe the limitations and the code they affect. Such description must
be placed in a text file included with all distributions of the Covered
Software under this License. Except to the extent prohibited by statute
or regulation, such description must be sufficiently detailed for a
recipient of ordinary skill to be able to understand it.
5. Termination
--------------
5.1. The rights granted under this License will terminate automatically
if You fail to comply with any of its terms. However, if You become
compliant, then the rights granted under this License from a particular
Contributor are reinstated (a) provisionally, unless and until such
Contributor explicitly and finally terminates Your grants, and (b) on an
ongoing basis, if such Contributor fails to notify You of the
non-compliance by some reasonable means prior to 60 days after You have
come back into compliance. Moreover, Your grants from a particular
Contributor are reinstated on an ongoing basis if such Contributor
notifies You of the non-compliance by some reasonable means, this is the
first time You have received notice of non-compliance with this License
from such Contributor, and You become compliant prior to 30 days after
Your receipt of the notice.
5.2. If You initiate litigation against any entity by asserting a patent
infringement claim (excluding declaratory judgment actions,
counter-claims, and cross-claims) alleging that a Contributor Version
directly or indirectly infringes any patent, then the rights granted to
You by any and all Contributors for the Covered Software under Section
2.1 of this License shall terminate.
5.3. In the event of termination under Sections 5.1 or 5.2 above, all
end user license agreements (excluding distributors and resellers) which
have been validly granted by You or Your distributors under this License
prior to termination shall survive termination.
************************************************************************
* *
* 6. Disclaimer of Warranty *
* ------------------------- *
* *
* Covered Software is provided under this License on an "as is" *
* basis, without warranty of any kind, either expressed, implied, or *
* statutory, including, without limitation, warranties that the *
* Covered Software is free of defects, merchantable, fit for a *
* particular purpose or non-infringing. The entire risk as to the *
* quality and performance of the Covered Software is with You. *
* Should any Covered Software prove defective in any respect, You *
* (not any Contributor) assume the cost of any necessary servicing, *
* repair, or correction. This disclaimer of warranty constitutes an *
* essential part of this License. No use of any Covered Software is *
* authorized under this License except under this disclaimer. *
* *
************************************************************************
************************************************************************
* *
* 7. Limitation of Liability *
* -------------------------- *
* *
* Under no circumstances and under no legal theory, whether tort *
* (including negligence), contract, or otherwise, shall any *
* Contributor, or anyone who distributes Covered Software as *
* permitted above, be liable to You for any direct, indirect, *
* special, incidental, or consequential damages of any character *
* including, without limitation, damages for lost profits, loss of *
* goodwill, work stoppage, computer failure or malfunction, or any *
* and all other commercial damages or losses, even if such party *
* shall have been informed of the possibility of such damages. This *
* limitation of liability shall not apply to liability for death or *
* personal injury resulting from such party's negligence to the *
* extent applicable law prohibits such limitation. Some *
* jurisdictions do not allow the exclusion or limitation of *
* incidental or consequential damages, so this exclusion and *
* limitation may not apply to You. *
* *
************************************************************************
8. Litigation
-------------
Any litigation relating to this License may be brought only in the
courts of a jurisdiction where the defendant maintains its principal
place of business and such litigation shall be governed by laws of that
jurisdiction, without reference to its conflict-of-law provisions.
Nothing in this Section shall prevent a party's ability to bring
cross-claims or counter-claims.
9. Miscellaneous
----------------
This License represents the complete agreement concerning the subject
matter hereof. If any provision of this License is held to be
unenforceable, such provision shall be reformed only to the extent
necessary to make it enforceable. Any law or regulation which provides
that the language of a contract shall be construed against the drafter
shall not be used to construe this License against a Contributor.
10. Versions of the License
---------------------------
10.1. New Versions
Mozilla Foundation is the license steward. Except as provided in Section
10.3, no one other than the license steward has the right to modify or
publish new versions of this License. Each version will be given a
distinguishing version number.
10.2. Effect of New Versions
You may distribute the Covered Software under the terms of the version
of the License under which You originally received the Covered Software,
or under the terms of any subsequent version published by the license
steward.
10.3. Modified Versions
If you create software not governed by this License, and you want to
create a new license for such software, you may create and use a
modified version of this License if you rename the license and remove
any references to the name of the license steward (except to note that
such modified license differs from this License).
10.4. Distributing Source Code Form that is Incompatible With Secondary
Licenses
If You choose to distribute Source Code Form that is Incompatible With
Secondary Licenses under the terms of this version of the License, the
notice described in Exhibit B of this License must be attached.
Exhibit A - Source Code Form License Notice
-------------------------------------------
This Source Code Form is subject to the terms of the Mozilla Public
License, v. 2.0. If a copy of the MPL was not distributed with this
file, You can obtain one at http://mozilla.org/MPL/2.0/.
If it is not possible or desirable to put the notice in a particular
file, then You may include the notice in a location (such as a LICENSE
file in a relevant directory) where a recipient would be likely to look
for such a notice.
You may add additional accurate notices of copyright ownership.
Exhibit B - "Incompatible With Secondary Licenses" Notice
---------------------------------------------------------
This Source Code Form is "Incompatible With Secondary Licenses", as
defined by the Mozilla Public License, v. 2.0.

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go build -o $GOPATH/packer-builder-xenserver main.go

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package xenserver
import (
"fmt"
"os"
"github.com/mitchellh/packer/packer"
"path/filepath"
)
type LocalArtifact struct {
dir string
f []string
}
func NewArtifact(dir string) (packer.Artifact, error) {
files := make([]string, 0, 1)
visit := func(path string, info os.FileInfo, err error) error {
if !info.IsDir() {
files = append(files, path)
}
return err
}
if err := filepath.Walk(dir, visit); err != nil {
return nil, err
}
return &LocalArtifact{
dir: dir,
f: files,
}, nil
}
func (*LocalArtifact) BuilderId() string {
return BuilderId
}
func (a *LocalArtifact) Files() []string {
return a.f
}
func (*LocalArtifact) Id() string {
return "VM"
}
func (a *LocalArtifact) String() string {
return fmt.Sprintf("VM files in directory: %s", a.dir)
}
func (a *LocalArtifact) State(name string) interface{} {
return nil
}
func (a *LocalArtifact) Destroy() error {
return os.RemoveAll(a.dir)
}

303
builder/xenserver/builder.go
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@ -7,6 +7,10 @@ import (
"fmt"
"log"
"errors"
"time"
"strings"
"os"
commonssh "github.com/mitchellh/packer/common/ssh"
)
@ -23,6 +27,40 @@ type config struct {
IsoUrl string `mapstructure:"iso_url"`
InstanceName string `mapstructure:"instance_name"`
RootDiskSize string `mapstructure:"root_disk_size"`
CloneTemplate string `mapstructure:"clone_template"`
IsoUuid string `mapstructure:"iso_uuid"`
SrUuid string `mapstructure:"sr_uuid"`
NetworkUuid string `mapstructure:"network_uuid"`
VncPortMin uint `mapstructure:"vnc_port_min"`
VncPortMax uint `mapstructure:"vnc_port_max"`
BootCommand []string `mapstructure:"boot_command"`
RawBootWait string `mapstructure:"boot_wait"`
BootWait time.Duration ``
sshWaitTimeout time.Duration ``
ISOChecksum string `mapstructure:"iso_checksum"`
ISOChecksumType string `mapstructure:"iso_checksum_type"`
ISOUrls []string `mapstructure:"iso_urls"`
ISOUrl string `mapstructure:"iso_url"`
HTTPDir string `mapstructure:"http_directory"`
HTTPPortMin uint `mapstructure:"http_port_min"`
HTTPPortMax uint `mapstructure:"http_port_max"`
LocalIp string `mapstructure:"local_ip"`
PlatformArgs map[string]string `mapstructure:"platform_args"`
RawSSHWaitTimeout string `mapstructure:"ssh_wait_timeout"`
SSHPassword string `mapstructure:"ssh_password"`
SSHUser string `mapstructure:"ssh_username"`
SSHKeyPath string `mapstructure:"ssh_key_path"`
OutputDir string `mapstructure:"output_directory"`
tpl *packer.ConfigTemplate
}
@ -34,33 +72,75 @@ type Builder struct {
}
func (self *Builder) Prepare (raws ...interface{}) ([]string, error) {
func (self *Builder) Prepare (raws ...interface{}) (params []string, retErr error) {
md, err := common.DecodeConfig(&self.config, raws...)
if err != nil {
return nil, err
}
errs := common.CheckUnusedConfig(md)
if errs == nil {
errs = &packer.MultiError{}
}
self.config.tpl, err = packer.NewConfigTemplate()
if err != nil {
return nil, err
}
self.config.tpl.UserVars = self.config.PackerUserVars
errs := common.CheckUnusedConfig(md)
// Set default vaules
if self.config.VncPortMin == 0 {
self.config.VncPortMin = 5900
}
if self.config.VncPortMax == 0 {
self.config.VncPortMax = 6000
}
if self.config.RawBootWait == "" {
self.config.RawBootWait = "5s"
}
if self.config.HTTPPortMin == 0 {
self.config.HTTPPortMin = 8000
}
if self.config.HTTPPortMax == 0 {
self.config.HTTPPortMax = 9000
}
if self.config.RawSSHWaitTimeout == "" {
self.config.RawSSHWaitTimeout = "200m"
}
if self.config.OutputDir == "" {
self.config.OutputDir = fmt.Sprintf("output-%s", self.config.PackerBuildName)
}
templates := map[string]*string {
"username": &self.config.Username,
"password": &self.config.Password,
"host_ip": &self.config.HostIp,
"iso_url": &self.config.IsoUrl,
"instance_name": &self.config.InstanceName,
"root_disk_size": &self.config.RootDiskSize,
"clone_template": &self.config.CloneTemplate,
"iso_uuid": &self.config.IsoUuid,
"sr_uuid": &self.config.SrUuid,
"network_uuid": &self.config.NetworkUuid,
"boot_wait": &self.config.RawBootWait,
"iso_checksum": &self.config.ISOChecksum,
"iso_checksum_type": &self.config.ISOChecksumType,
"http_directory": &self.config.HTTPDir,
"local_ip": &self.config.LocalIp,
"ssh_wait_timeout": &self.config.RawSSHWaitTimeout,
"ssh_username": &self.config.SSHUser,
"ssh_password": &self.config.SSHPassword,
"ssh_key_path": &self.config.SSHKeyPath,
"output_directory": &self.config.OutputDir,
}
@ -72,17 +152,220 @@ func (self *Builder) Prepare (raws ...interface{}) ([]string, error) {
}
}
/*
if self.config.IsoUrl == "" {
errs = packer.MultiErrorAppend(
errs, errors.New("a iso url must be specified"))
}
return nil, nil
*/
self.config.BootWait, err = time.ParseDuration(self.config.RawBootWait)
if err != nil {
errs = packer.MultiErrorAppend(
errs, errors.New("Failed to parse boot_wait."))
}
self.config.sshWaitTimeout, err = time.ParseDuration(self.config.RawSSHWaitTimeout)
if err != nil {
errs = packer.MultiErrorAppend(
errs, fmt.Errorf("Failed to parse ssh_wait_timeout: %s", err))
}
for i, command := range self.config.BootCommand {
if err := self.config.tpl.Validate(command); err != nil {
errs = packer.MultiErrorAppend(errs,
fmt.Errorf("Error processing boot_command[%d]: %s", i, err))
}
}
if self.config.SSHUser == "" {
errs = packer.MultiErrorAppend(
errs, errors.New("An ssh_username must be specified."))
}
if self.config.SSHKeyPath != "" {
if _, err := os.Stat(self.config.SSHKeyPath); err != nil {
errs = packer.MultiErrorAppend(
errs, fmt.Errorf("ssh_key_path is invalid: %s", err))
} else if _, err := commonssh.FileSigner(self.config.SSHKeyPath); err != nil {
errs = packer.MultiErrorAppend(
errs, fmt.Errorf("ssh_key_path is invalid: %s", err))
}
}
if self.config.Username == "" {
errs = packer.MultiErrorAppend(
errs, errors.New("A username for the xenserver host must be specified."))
}
if self.config.Password == "" {
errs = packer.MultiErrorAppend(
errs, errors.New("A password for the xenserver host must be specified."))
}
if self.config.HostIp == "" {
errs = packer.MultiErrorAppend(
errs, errors.New("An ip for the xenserver host must be specified."))
}
if self.config.InstanceName == "" {
errs = packer.MultiErrorAppend(
errs, errors.New("An insatnce name must be specified."))
}
if self.config.RootDiskSize == "" {
errs = packer.MultiErrorAppend(
errs, errors.New("A root disk size must be specified."))
}
if self.config.CloneTemplate == "" {
errs = packer.MultiErrorAppend(
errs, errors.New("A template to clone from must be specified."))
}
if self.config.IsoUuid == "" {
errs = packer.MultiErrorAppend(
errs, errors.New("a uuid for the installation iso must be specified."))
}
if self.config.SrUuid == "" {
errs = packer.MultiErrorAppend(
errs, errors.New("a uuid for the sr used for the instance must be specified."))
}
if self.config.NetworkUuid == "" {
errs = packer.MultiErrorAppend(
errs, errors.New("a uuid for the network used for the instance must be specified."))
}
if self.config.LocalIp == "" {
errs = packer.MultiErrorAppend(
errs, errors.New("A local IP visible to XenServer's mangement interface is required to serve files."))
}
if len(self.config.PlatformArgs) == 0 {
pargs := make(map[string]string)
pargs["viridian"] = "false"
pargs["nx"] = "true"
pargs["pae"] = "true"
pargs["apic"] = "true"
pargs["timeoffset"] = "0"
pargs["acpi"] = "1"
self.config.PlatformArgs = pargs
}
if self.config.HTTPPortMin > self.config.HTTPPortMax {
errs = packer.MultiErrorAppend(
errs, errors.New("the HTTP min port must be less than the max"))
}
if self.config.VncPortMin > self.config.VncPortMax {
errs = packer.MultiErrorAppend(
errs, errors.New("the VNC min port must be less than the max"))
}
if self.config.ISOChecksumType == "" {
errs = packer.MultiErrorAppend(
errs, errors.New("The iso_checksum_type must be specified."))
} else {
self.config.ISOChecksumType = strings.ToLower(self.config.ISOChecksumType)
if self.config.ISOChecksumType != "none" {
if self.config.ISOChecksum == "" {
errs = packer.MultiErrorAppend(
errs, errors.New("Due to the file size being large, an iso_checksum is required."))
} else {
self.config.ISOChecksum = strings.ToLower(self.config.ISOChecksum)
}
if hash := common.HashForType(self.config.ISOChecksumType); hash == nil {
errs = packer.MultiErrorAppend(
errs, fmt.Errorf("Unsupported checksum type: %s", self.config.ISOChecksumType))
}
}
}
if self.config.ISOUrl == "" {
errs = packer.MultiErrorAppend(
errs, errors.New("A ISO URL must be specfied."))
} else {
self.config.ISOUrls = []string{self.config.ISOUrl}
}
for i, url := range self.config.ISOUrls {
self.config.ISOUrls[i], err = common.DownloadableURL(url)
if err != nil {
errs = packer.MultiErrorAppend(
errs, fmt.Errorf("Failed to parse the iso_url (%d): %s", i, err))
}
}
if len(errs.Errors) > 0 {
retErr = errors.New(errs.Error())
}
return nil, retErr
}
func (self *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packer.Artifact, error) {
log.Println("Run, not yet implemented!")
return nil, nil
//Setup XAPI client
client := NewXenAPIClient(self.config.HostIp, self.config.Username, self.config.Password)
err := client.Login()
if err != nil {
return nil, err.(error)
}
ui.Say("XAPI client session established")
client.GetHosts()
//Share state between the other steps using a statebag
state := new(multistep.BasicStateBag)
state.Put("cache", cache)
state.Put("client", client)
state.Put("config", self.config)
state.Put("hook", hook)
state.Put("ui", ui)
//Build the steps
steps := []multistep.Step{
&common.StepDownload{
Checksum: self.config.ISOChecksum,
ChecksumType: self.config.ISOChecksumType,
Description: "ISO",
ResultKey: "iso_path",
Url: self.config.ISOUrls,
},
new(stepPrepareOutputDir),
new(stepHTTPServer),
new(stepUploadIso),
new(stepCreateInstance),
new(stepStartVmPaused),
new(stepForwardVncPortOverSsh),
new(stepBootWait),
new(stepTypeBootCommand),
new(stepWait),
&common.StepConnectSSH{
SSHAddress: sshAddress,
SSHConfig: sshConfig,
SSHWaitTimeout: self.config.sshWaitTimeout,
},
new(common.StepProvision),
new(stepShutdownAndExport),
}
self.runner = &multistep.BasicRunner{Steps: steps}
self.runner.Run(state)
artifact, _ := NewArtifact(self.config.OutputDir)
if rawErr, ok := state.GetOk("error"); ok {
return nil, rawErr.(error)
}
return artifact, nil
}

530
builder/xenserver/client.go Normal file
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@ -0,0 +1,530 @@
package xenserver
import (
"github.com/nilshell/xmlrpc"
"log"
"fmt"
"errors"
)
func check(err error) {
if err != nil {
log.Fatal(err)
}
}
type XenAPIClient struct {
Session interface{}
Host string
Url string
Username string
Password string
RPC *xmlrpc.Client
}
type APIResult struct {
Status string
Value interface{}
ErrorDescription string
}
type VM struct {
Ref string
Client *XenAPIClient
}
type SR struct {
Ref string
Client *XenAPIClient
}
type VDI struct {
Ref string
Client *XenAPIClient
}
type Network struct {
Ref string
Client *XenAPIClient
}
type VBD struct {
Ref string
Client *XenAPIClient
}
func (c *XenAPIClient) RPCCall (result interface{}, method string, params []interface{}) (err error) {
fmt.Println(params)
p := new(xmlrpc.Params)
p.Params = params
err = c.RPC.Call(method, *p, result)
return err
}
func (client *XenAPIClient) Login () (err error) {
//Do loging call
result := xmlrpc.Struct{}
params := make([]interface{}, 2)
params[0] = client.Username
params[1] = client.Password
err = client.RPCCall(&result, "session.login_with_password", params)
client.Session = result["Value"]
return err
}
func (client *XenAPIClient) APICall (result *APIResult, method string, params ...interface{}) (err error) {
if client.Session == nil {
fmt.Println("Error: no session")
return fmt.Errorf("No session. Unable to make call")
}
//Make a params slice which will include the session
p := make([]interface{}, len(params) + 1)
p[0] = client.Session
if params != nil {
for idx, element := range params {
p[idx+1] = element
}
}
res := xmlrpc.Struct{}
err = client.RPCCall(&res, method, p)
if err != nil {
return err
}
result.Status = res["Status"].(string)
if result.Status != "Success" {
fmt.Println("Encountered an API error: ", result.Status)
fmt.Println(res["ErrorDescription"])
return errors.New("API Error occurred")
} else {
result.Value = res["Value"]
}
return
}
func (client *XenAPIClient) GetHosts () (err error) {
result := APIResult{}
_ = client.APICall(&result, "host.get_all")
hosts := result.Value
fmt.Println(hosts)
return nil
}
func (client *XenAPIClient) GetVMByUuid (vm_uuid string) (vm *VM, err error) {
vm = new(VM)
result := APIResult{}
err = client.APICall(&result, "VM.get_by_uuid", vm_uuid)
if err != nil {
return nil, err
}
vm.Ref = result.Value.(string)
vm.Client = client
return
}
func (client *XenAPIClient) GetNetworkByUuid (network_uuid string) (network *Network, err error) {
network = new(Network)
result := APIResult{}
err = client.APICall(&result, "network.get_by_uuid", network_uuid)
if err != nil {
return nil, err
}
network.Ref = result.Value.(string)
network.Client = client
return
}
func (client *XenAPIClient) GetSRByUuid (sr_uuid string) (sr *SR, err error) {
sr = new(SR)
result := APIResult{}
err = client.APICall(&result, "SR.get_by_uuid", sr_uuid)
if err != nil {
return nil, err
}
sr.Ref = result.Value.(string)
sr.Client = client
return
}
func (client *XenAPIClient) GetVdiByUuid (vdi_uuid string) (vdi *VDI, err error) {
vdi = new(VDI)
result := APIResult{}
err = client.APICall(&result, "VDI.get_by_uuid", vdi_uuid)
if err != nil {
return nil, err
}
vdi.Ref = result.Value.(string)
vdi.Client = client
return
}
// VM associated functions
func (self *VM) Clone (label string) (new_instance *VM, err error) {
new_instance = new(VM)
result := APIResult{}
err = self.Client.APICall(&result, "VM.clone", self.Ref, label)
if err != nil {
return nil, err
}
new_instance.Ref = result.Value.(string)
new_instance.Client = self.Client
return
}
func (self *VM) Start(paused, force bool) (err error) {
result := APIResult{}
err = self.Client.APICall(&result, "VM.start", self.Ref, paused, force)
if err != nil {
return err
}
return
}
func (self *VM) CleanShutdown() (err error) {
result := APIResult{}
err = self.Client.APICall(&result, "VM.clean_shutdown", self.Ref)
if err != nil {
return err
}
return
}
func (self *VM) Unpause () (err error) {
result := APIResult{}
err = self.Client.APICall(&result, "VM.unpause", self.Ref)
if err != nil {
return err
}
return
}
func (self *VM) SetPVBootloader(pv_bootloader, pv_args string) (err error) {
result := APIResult{}
err = self.Client.APICall(&result, "VM.set_PV_bootloader", self.Ref, pv_bootloader)
if err != nil {
return err
}
result = APIResult{}
err = self.Client.APICall(&result, "VM.set_PV_bootloader_args", self.Ref, pv_args)
if err != nil {
return err
}
return
}
func (self *VM) GetDomainId() (domid string, err error) {
result := APIResult{}
err = self.Client.APICall(&result, "VM.get_domid", self.Ref)
if err != nil {
return "", err
}
domid = result.Value.(string)
return domid, nil
}
func (self *VM) GetPowerState() (state string, err error) {
result := APIResult{}
err = self.Client.APICall(&result, "VM.get_power_state", self.Ref)
if err != nil {
return "", err
}
state = result.Value.(string)
return state, nil
}
func (self *VM) GetUuid() (uuid string, err error) {
result := APIResult{}
err = self.Client.APICall(&result, "VM.get_uuid", self.Ref)
if err != nil {
return "", err
}
uuid = result.Value.(string)
return uuid, nil
}
func (self *VM) GetVBDs() (vbds []VBD, err error) {
vbds = make([]VBD, 0)
result := APIResult{}
err = self.Client.APICall(&result, "VM.get_VBDs", self.Ref)
if err != nil {
return vbds, err
}
for _, elem := range result.Value.([]interface{}) {
vbd := VBD{}
vbd.Ref = elem.(string)
vbd.Client = self.Client
vbds = append(vbds, vbd)
}
return vbds, nil
}
func (self *VM) GetDisks() (vdis []*VDI, err error) {
// Return just data disks (non-isos)
vdis = make([]*VDI, 0)
vbds, err := self.GetVBDs()
if err != nil {
return nil, err
}
for _, vbd := range vbds {
rec, err := vbd.GetRecord()
if err != nil {
return nil, err
}
if rec["type"] == "Disk" {
vdi, err := vbd.GetVDI()
if err != nil {
return nil, err
}
vdis = append(vdis, vdi)
}
}
return vdis, nil
}
func (self *VM) GetGuestMetricsRef() (ref string, err error) {
result := APIResult{}
err = self.Client.APICall(&result, "VM.get_guest_metrics", self.Ref)
if err != nil {
return "", nil
}
ref = result.Value.(string)
return ref, err
}
func (self *VM) GetGuestMetrics() (metrics map[string]interface{}, err error) {
metrics = make(map[string]interface{})
metrics_ref, err := self.GetGuestMetricsRef()
if err != nil {
return metrics, err
}
result := APIResult{}
err = self.Client.APICall(&result, "VM_guest_metrics.get_record", metrics_ref)
if err != nil {
return metrics, nil
}
for k, v := range result.Value.(xmlrpc.Struct) {
metrics[k] = v
}
return metrics, nil
}
func (self *VM) SetStaticMemoryRange(min, max string) (err error) {
result := APIResult{}
err = self.Client.APICall(&result, "VM.set_memory_limits", self.Ref, min, max, min, max)
if err != nil {
return err
}
return
}
func (self *VM) ConnectVdi (vdi *VDI, iso bool) (err error) {
// 1. Create a VBD
vbd_rec := make(xmlrpc.Struct)
vbd_rec["VM"] = self.Ref
vbd_rec["VDI"] = vdi.Ref
vbd_rec["userdevice"] = "autodetect"
vbd_rec["unpluggable"] = false
vbd_rec["empty"] = false
vbd_rec["other_config"] = make(xmlrpc.Struct)
vbd_rec["qos_algorithm_type"] = ""
vbd_rec["qos_algorithm_params"] = make(xmlrpc.Struct)
if iso {
vbd_rec["mode"] = "RO"
vbd_rec["bootable"] = true
vbd_rec["type"] = "CD"
} else {
vbd_rec["mode"] = "RW"
vbd_rec["bootable"] = false
vbd_rec["type"] = "Disk"
}
result := APIResult{}
err = self.Client.APICall(&result, "VBD.create", vbd_rec)
if err != nil {
return err
}
vbd_ref := result.Value.(string)
fmt.Println("VBD Ref:", vbd_ref)
result = APIResult{}
err = self.Client.APICall(&result, "VBD.get_uuid", vbd_ref)
fmt.Println("VBD UUID: ", result.Value.(string))
/*
// 2. Plug VBD (Non need - the VM hasn't booted.
// @todo - check VM state
result = APIResult{}
err = self.Client.APICall(&result, "VBD.plug", vbd_ref)
if err != nil {
return err
}
*/
return
}
func (self *VM) SetPlatform(params map[string]string) (err error) {
result := APIResult{}
platform_rec := make(xmlrpc.Struct)
for key, value := range params {
platform_rec[key] = value
}
err = self.Client.APICall(&result, "VM.set_platform", self.Ref, platform_rec)
if err != nil {
return err
}
return
}
func (self *VM) ConnectNetwork (network *Network, device string) (err error) {
// Create the VIF
vif_rec := make(xmlrpc.Struct)
vif_rec["network"] = network.Ref
vif_rec["VM"] = self.Ref
vif_rec["MAC"] = ""
vif_rec["device"] = device
vif_rec["MTU"] = "1504"
vif_rec["other_config"] = make(xmlrpc.Struct)
vif_rec["qos_algorithm_type"] = ""
vif_rec["qos_algorithm_params"] = make(xmlrpc.Struct)
result := APIResult{}
err = self.Client.APICall(&result, "VIF.create", vif_rec)
if err != nil {
return err
}
return nil
}
// Setters
func (self *VM) SetIsATemplate (is_a_template bool) (err error) {
result := APIResult{}
err = self.Client.APICall(&result, "VM.set_is_a_template", self.Ref, is_a_template)
if err != nil {
return err
}
return
}
// SR associated functions
func (self *SR) CreateVdi (name_label, size string) (vdi *VDI, err error) {
vdi = new(VDI)
vdi_rec := make(xmlrpc.Struct)
vdi_rec["name_label"] = name_label
vdi_rec["SR"] = self.Ref
vdi_rec["virtual_size"] = size
vdi_rec["type"] = "user"
vdi_rec["sharable"] = false
vdi_rec["read_only"] = false
oc := make(xmlrpc.Struct)
oc["temp"] = "temp"
vdi_rec["other_config"] = oc
result := APIResult{}
err = self.Client.APICall(&result, "VDI.create", vdi_rec)
if err != nil {
return nil, err
}
vdi.Ref = result.Value.(string)
vdi.Client = self.Client
return
}
// VBD associated functions
func (self *VBD) GetRecord () (record map[string]interface{}, err error) {
record = make(map[string]interface{})
result := APIResult{}
err = self.Client.APICall(&result, "VBD.get_record", self.Ref)
if err != nil {
return record, err
}
for k, v := range result.Value.(xmlrpc.Struct) {
record[k] = v
}
return record, nil
}
func (self *VBD) GetVDI () (vdi *VDI, err error) {
vbd_rec, err := self.GetRecord()
if err != nil {
return nil, err
}
vdi = new(VDI)
vdi.Ref = vbd_rec["VDI"].(string)
vdi.Client = self.Client
return vdi, nil
}
func (self *VBD) Eject () (err error) {
result := APIResult{}
err = self.Client.APICall(&result, "VBD.eject", self.Ref)
if err != nil {
return err
}
return nil
}
// VDI associated functions
func (self *VDI) GetUuid () (vdi_uuid string, err error) {
result := APIResult{}
err = self.Client.APICall(&result, "VDI.get_uuid", self.Ref)
if err != nil {
return "", err
}
vdi_uuid = result.Value.(string)
return vdi_uuid, nil
}
// Client Initiator
func NewXenAPIClient (host, username, password string) (client XenAPIClient) {
client.Host = host
client.Url = "http://" + host
client.Username = username
client.Password = password
client.RPC, _ = xmlrpc.NewClient(client.Url, nil)
return
}

39
builder/xenserver/ssh.go Normal file
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package xenserver
import (
"fmt"
gossh "code.google.com/p/go.crypto/ssh"
"github.com/mitchellh/multistep"
commonssh "github.com/mitchellh/packer/common/ssh"
"github.com/mitchellh/packer/communicator/ssh"
)
func sshAddress(state multistep.StateBag) (string, error) {
sshIP := state.Get("ssh_address").(string)
sshHostPort := 22
return fmt.Sprintf("%s:%d", sshIP, sshHostPort), nil
}
func sshConfig(state multistep.StateBag) (*gossh.ClientConfig, error) {
config := state.Get("config").(config)
auth := []gossh.AuthMethod{
gossh.Password(config.SSHPassword),
gossh.KeyboardInteractive(
ssh.PasswordKeyboardInteractive(config.SSHPassword)),
}
if config.SSHKeyPath != "" {
signer, err := commonssh.FileSigner(config.SSHKeyPath)
if err != nil {
return nil, err
}
auth = append(auth, gossh.PublicKeys(signer))
}
return &gossh.ClientConfig{
User: config.SSHUser,
Auth: auth,
}, nil
}

30
builder/xenserver/step_boot_wait.go Normal file
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package xenserver
import (
"fmt"
"github.com/mitchellh/multistep"
"github.com/mitchellh/packer/packer"
"time"
)
type stepBootWait struct{}
func (self *stepBootWait) Run(state multistep.StateBag) multistep.StepAction {
client := state.Get("client").(XenAPIClient)
config := state.Get("config").(config)
ui := state.Get("ui").(packer.Ui)
instance, _ := client.GetVMByUuid(state.Get("instance_uuid").(string))
ui.Say("Unpausing VM " + state.Get("instance_uuid").(string))
instance.Unpause()
if int64(config.BootWait) > 0 {
ui.Say(fmt.Sprintf("Waiting %s for boot...", config.BootWait))
time.Sleep(config.BootWait)
}
return multistep.ActionContinue
}
func (self *stepBootWait) Cleanup(state multistep.StateBag) {}

80
builder/xenserver/step_create_instance.go Normal file
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package xenserver
import (
"github.com/mitchellh/multistep"
"github.com/mitchellh/packer/packer"
"fmt"
)
type stepCreateInstance struct {
InstanceId string
}
func (self *stepCreateInstance) Run(state multistep.StateBag) multistep.StepAction {
client := state.Get("client").(XenAPIClient)
config := state.Get("config").(config)
ui := state.Get("ui").(packer.Ui)
ui.Say("Step: Create Instance")
// Get the template to clone from
template, _ := client.GetVMByUuid(config.CloneTemplate)
// Clone that VM template
instance, _ := template.Clone(config.InstanceName)
instance.SetIsATemplate(false)
instance.SetStaticMemoryRange("1024000000", "1024000000")
instance.SetPlatform(config.PlatformArgs)
// Create VDI for the instance
sr, _ := client.GetSRByUuid(config.SrUuid)
vdi, _ := sr.CreateVdi("Packer-disk", config.RootDiskSize)
instance.ConnectVdi(vdi, false)
// Connect Network
network, err := client.GetNetworkByUuid(config.NetworkUuid)
if err != nil {
ui.Say(err.Error())
}
err = instance.ConnectNetwork(network, "0")
if err != nil {
ui.Say(err.Error())
}
// Connect the ISO
//iso_vdi_uuid := state.Get("iso_vdi_uuid").(string)
iso, _ := client.GetVdiByUuid(config.IsoUuid)
//ui.Say("Using VDI: " + iso_vdi_uuid)
//iso, _ := client.GetVdiByUuid(iso_vdi_uuid)
instance.ConnectVdi(iso, true)
// Stash the VM reference
self.InstanceId, _ = instance.GetUuid()
state.Put("instance_uuid", self.InstanceId)
ui.Say(fmt.Sprintf("Created instance '%s'", self.InstanceId))
return multistep.ActionContinue
}
func (self *stepCreateInstance) Cleanup(state multistep.StateBag) {
// client := state.Get("client").(*XenAPIClient)
// config := state.Get("config").(config)
// ui := state.Get("ui").(packer.Ui)
// If instance hasn't been created, we have nothing to do.
if self.InstanceId == "" {
return
}
// @todo: destroy the created instance.
return
}

143
builder/xenserver/step_forward_vnc_port_over_ssh.go Normal file
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package xenserver
import (
"github.com/mitchellh/multistep"
"github.com/mitchellh/packer/packer"
"fmt"
"code.google.com/p/go.crypto/ssh"
"bytes"
"net"
"io"
"strconv"
"log"
"strings"
)
type stepForwardVncPortOverSsh struct {}
func execute_ssh_cmd (cmd, host, port, username, password string) (stdout string, err error) {
// Setup connection config
config := &ssh.ClientConfig {
User: username,
Auth: []ssh.AuthMethod {
ssh.Password(password),
},
}
client, err := ssh.Dial("tcp", host + ":" + port, config)
if err != nil {
return "", err
}
//Create session
session, err := client.NewSession()
if err != nil {
return "", err
}
defer session.Close()
var b bytes.Buffer
session.Stdout = &b
if err := session.Run(cmd); err != nil {
return "", err
}
session.Close()
return strings.Trim(b.String(), "\n"), nil
}
func forward(local_conn net.Conn, config *ssh.ClientConfig, server, remote_port string) {
ssh_client_conn, err := ssh.Dial("tcp", server + ":22", config)
if err != nil {
log.Fatalf("local ssh.Dial error: %s", err)
}
ssh_conn, err := ssh_client_conn.Dial("tcp", "127.0.0.1:" + remote_port)
if err != nil {
log.Fatalf("ssh.Dial error: %s", err)
}
go func() {
_, err = io.Copy(ssh_conn, local_conn)
if err != nil {
log.Fatalf("io.copy failed: %v", err)
}
}()
go func() {
_, err = io.Copy(local_conn, ssh_conn)
if err != nil {
log.Fatalf("io.copy failed: %v", err)
}
}()
}
func ssh_port_forward(local_port, remote_port, host, username, password string) (err error) {
config := &ssh.ClientConfig {
User: username,
Auth: []ssh.AuthMethod{
ssh.Password(password),
},
}
// Listen on a local port
local_listener, err := net.Listen("tcp", "127.0.0.1:" + local_port)
if err != nil {
log.Fatalf("Local listen failed: %s", err)
return err
}
for {
local_connection, err := local_listener.Accept()
if err != nil {
log.Fatalf("Local accept failed: %s", err)
return err
}
// Forward to a remote port
go forward(local_connection, config, host, remote_port)
}
return nil
}
func (self *stepForwardVncPortOverSsh) Run(state multistep.StateBag) multistep.StepAction {
// client := state.Get("client").(XenAPIClient)
config := state.Get("config").(config)
ui := state.Get("ui").(packer.Ui)
ui.Say("Step: forward the instances VNC port over SSH")
domid := state.Get("domid").(string)
cmd := fmt.Sprintf("xenstore-read /local/domain/%s/console/vnc-port", domid)
remote_vncport, _ := execute_ssh_cmd(cmd, config.HostIp, "22", config.Username, config.Password)
ui.Say("The VNC port is " + remote_vncport)
// Just take the min port for the moment
state.Put("local_vnc_port", config.VncPortMin)
local_port := strconv.Itoa(int(config.VncPortMin))
ui.Say("About to setup SSH Port forward setup on local port " + local_port)
go ssh_port_forward(local_port, remote_vncport, config.HostIp, config.Username, config.Password)
ui.Say("Port forward setup.")
return multistep.ActionContinue
}
func (self *stepForwardVncPortOverSsh) Cleanup(state multistep.StateBag) {
}

78
builder/xenserver/step_http_server.go Normal file
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package xenserver
// Taken from mitchellh/packer/builder/qemu/step_http_server.go
import (
"fmt"
"github.com/mitchellh/multistep"
"github.com/mitchellh/packer/packer"
"log"
"math/rand"
"net"
"net/http"
)
// This step creates and runs the HTTP server that is serving files from the
// directory specified by the 'http_directory` configuration parameter in the
// template.
//
// Uses:
// config *config
// ui packer.Ui
//
// Produces:
// http_port int - The port the HTTP server started on.
type stepHTTPServer struct {
l net.Listener
}
func (s *stepHTTPServer) Run(state multistep.StateBag) multistep.StepAction {
config := state.Get("config").(config)
ui := state.Get("ui").(packer.Ui)
var httpPort uint = 0
if config.HTTPDir == "" {
state.Put("http_port", httpPort)
return multistep.ActionContinue
}
// Find an available TCP port for our HTTP server
var httpAddr string
portRange := int(config.HTTPPortMax - config.HTTPPortMin)
for {
var err error
var offset uint = 0
if portRange > 0 {
// Intn will panic if portRange == 0, so we do a check.
offset = uint(rand.Intn(portRange))
}
httpPort = offset + config.HTTPPortMin
httpAddr = fmt.Sprintf(":%d", httpPort)
log.Printf("Trying port: %d", httpPort)
s.l, err = net.Listen("tcp", httpAddr)
if err == nil {
break
}
}
ui.Say(fmt.Sprintf("Starting HTTP server on port %d", httpPort))
// Start the HTTP server and run it in the background
fileServer := http.FileServer(http.Dir(config.HTTPDir))
server := &http.Server{Addr: httpAddr, Handler: fileServer}
go server.Serve(s.l)
// Save the address into the state so it can be accessed in the future
state.Put("http_port", httpPort)
return multistep.ActionContinue
}
func (s *stepHTTPServer) Cleanup(multistep.StateBag) {
if s.l != nil {
// Close the listener so that the HTTP server stops
s.l.Close()
}
}

51
builder/xenserver/step_prepare_output_dir.go Normal file
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package xenserver
/* Taken from https://raw.githubusercontent.com/mitchellh/packer/master/builder/qemu/step_prepare_output_dir.go */
import (
"github.com/mitchellh/multistep"
"github.com/mitchellh/packer/packer"
"log"
"os"
"time"
)
type stepPrepareOutputDir struct{}
func (stepPrepareOutputDir) Run(state multistep.StateBag) multistep.StepAction {
config := state.Get("config").(config)
ui := state.Get("ui").(packer.Ui)
if _, err := os.Stat(config.OutputDir); err == nil && config.PackerForce {
ui.Say("Deleting previous output directory...")
os.RemoveAll(config.OutputDir)
}
if err := os.MkdirAll(config.OutputDir, 0755); err != nil {
state.Put("error", err)
return multistep.ActionHalt
}
return multistep.ActionContinue
}
func (stepPrepareOutputDir) Cleanup(state multistep.StateBag) {
_, cancelled := state.GetOk(multistep.StateCancelled)
_, halted := state.GetOk(multistep.StateHalted)
if cancelled || halted {
config := state.Get("config").(*config)
ui := state.Get("ui").(packer.Ui)
ui.Say("Deleting output directory...")
for i := 0; i < 5; i++ {
err := os.RemoveAll(config.OutputDir)
if err == nil {
break
}
log.Printf("Error removing output dir: %s", err)
time.Sleep(2 * time.Second)
}
}
}

100
builder/xenserver/step_shutdown_and_export.go Normal file
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@ -0,0 +1,100 @@
package xenserver
/* Taken from https://raw.githubusercontent.com/mitchellh/packer/master/builder/qemu/step_prepare_output_dir.go */
import (
"github.com/mitchellh/multistep"
"github.com/mitchellh/packer/packer"
"os"
"fmt"
"net/http"
"crypto/tls"
"io"
)
type stepShutdownAndExport struct{}
func downloadFile(url, filename string) (err error) {
// Create the file
fh, err := os.Create(filename)
if err != nil {
return err
}
// Define a new transport which allows self-signed certs
tr := &http.Transport{
TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
}
// Create a client
client := &http.Client{Transport: tr}
// Create request and download file
resp, err := client.Get(url)
if err != nil {
return err
}
defer resp.Body.Close()
io.Copy(fh, resp.Body)
return nil
}
func (stepShutdownAndExport) Run(state multistep.StateBag) multistep.StepAction {
config := state.Get("config").(config)
ui := state.Get("ui").(packer.Ui)
client := state.Get("client").(XenAPIClient)
instance_uuid := state.Get("instance_uuid").(string)
instance, _ := client.GetVMByUuid(instance_uuid)
ui.Say("Step: Shutdown and export VPX")
// Shutdown the VM
ui.Say("Shutting down the VM...")
instance.CleanShutdown()
//Export the VM
export_url := fmt.Sprintf("https://%s/export?vm=%s&session_id=%s",
client.Host,
instance.Ref,
client.Session.(string),
)
export_filename := fmt.Sprintf("%s/%s.xva", config.OutputDir, config.InstanceName)
ui.Say("Getting metadata " + export_url)
downloadFile(export_url, export_filename)
disks, _ := instance.GetDisks()
for _, disk := range disks {
disk_uuid, _ := disk.GetUuid()
// Basic auth in URL request is required as session token is not
// accepted for some reason.
// @todo: raise with XAPI team.
disk_export_url := fmt.Sprintf("https://%s:%s@%s/export_raw_vdi?vdi=%s",
client.Username,
client.Password,
client.Host,
disk_uuid,
)
ui.Say("Getting " + disk_export_url)
disk_export_filename := fmt.Sprintf("%s/%s.raw", config.OutputDir, disk_uuid)
ui.Say("Downloading " + disk_uuid)
downloadFile(disk_export_url, disk_export_filename)
}
ui.Say("Download complteded: " + config.OutputDir)
return multistep.ActionContinue
}
func (stepShutdownAndExport) Cleanup(state multistep.StateBag) {
}

30
builder/xenserver/step_start_vm_paused.go Normal file
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package xenserver
import (
"github.com/mitchellh/multistep"
"github.com/mitchellh/packer/packer"
)
type stepStartVmPaused struct {}
func (self *stepStartVmPaused) Run(state multistep.StateBag) multistep.StepAction {
client := state.Get("client").(XenAPIClient)
ui := state.Get("ui").(packer.Ui)
ui.Say("Step: Start VM Paused")
instance, _ := client.GetVMByUuid(state.Get("instance_uuid").(string))
instance.Start(true, false)
domid, _ := instance.GetDomainId()
state.Put("domid", domid)
return multistep.ActionContinue
}
func (self *stepStartVmPaused) Cleanup(state multistep.StateBag) {
}

185
builder/xenserver/step_type_boot_command.go Normal file
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package xenserver
/* Heavily borrowed from builder/quemu/step_type_boot_command.go */
import (
"fmt"
"github.com/mitchellh/go-vnc"
"github.com/mitchellh/multistep"
"github.com/mitchellh/packer/packer"
"log"
"net"
"strings"
"time"
"unicode"
"unicode/utf8"
)
const KeyLeftShift uint = 0xFFE1
type bootCommandTemplateData struct {
HTTPIP string
HTTPPort uint
}
type stepTypeBootCommand struct{}
func (self *stepTypeBootCommand) Run (state multistep.StateBag) multistep.StepAction {
config := state.Get("config").(config)
ui := state.Get("ui").(packer.Ui)
vnc_port := state.Get("local_vnc_port").(uint)
http_port := state.Get("http_port").(uint)
// Connect to the local VNC port as we have set up a SSH port forward
ui.Say("Connecting to the VM over VNC")
net_conn, err := net.Dial("tcp", fmt.Sprintf("127.0.0.1:%d", vnc_port))
if err != nil {
err := fmt.Errorf("Error connecting to VNC: %s", err)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
defer net_conn.Close()
c, err := vnc.Client(net_conn, &vnc.ClientConfig{Exclusive: true})
if err != nil {
err := fmt.Errorf("Error establishing VNC session: %s", err)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
defer c.Close()
log.Printf("Connected to the VNC console: %s", c.DesktopName)
// @todo - include http port/ip so kickstarter files can be grabbed
tplData := &bootCommandTemplateData {
config.LocalIp,
http_port,
}
ui.Say("About to type boot commands over VNC...")
for _, command := range config.BootCommand {
command, err := config.tpl.Process(command, tplData)
if err != nil {
err := fmt.Errorf("Error preparing boot command: %s", err)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
// Check for interrupts
if _, ok := state.GetOk(multistep.StateCancelled); ok {
return multistep.ActionHalt
}
vncSendString(c, command)
}
ui.Say("Finished typing.")
return multistep.ActionContinue
}
func (self *stepTypeBootCommand) Cleanup (multistep.StateBag) {}
// Taken from qemu's builder plugin - not an exported function.
func vncSendString(c *vnc.ClientConn, original string) {
// Scancodes reference: https://github.com/qemu/qemu/blob/master/ui/vnc_keysym.h
special := make(map[string]uint32)
special["<bs>"] = 0xFF08
special["<del>"] = 0xFFFF
special["<enter>"] = 0xFF0D
special["<esc>"] = 0xFF1B
special["<f1>"] = 0xFFBE
special["<f2>"] = 0xFFBF
special["<f3>"] = 0xFFC0
special["<f4>"] = 0xFFC1
special["<f5>"] = 0xFFC2
special["<f6>"] = 0xFFC3
special["<f7>"] = 0xFFC4
special["<f8>"] = 0xFFC5
special["<f9>"] = 0xFFC6
special["<f10>"] = 0xFFC7
special["<f11>"] = 0xFFC8
special["<f12>"] = 0xFFC9
special["<return>"] = 0xFF0D
special["<tab>"] = 0xFF09
special["<up>"] = 0xFF52
special["<down>"] = 0xFF54
special["<left>"] = 0xFF51
special["<right>"] = 0xFF53
special["<spacebar>"] = 0x020
special["<insert>"] = 0xFF63
special["<home>"] = 0xFF50
special["<end>"] = 0xFF57
special["<pageUp>"] = 0xFF55
special["<pageDown>"] = 0xFF56
shiftedChars := "~!@#$%^&*()_+{}|:\"<>?"
// TODO(mitchellh): Ripe for optimizations of some point, perhaps.
for len(original) > 0 {
var keyCode uint32
keyShift := false
if strings.HasPrefix(original, "<wait>") {
log.Printf("Special code '<wait>' found, sleeping one second")
time.Sleep(1 * time.Second)
original = original[len("<wait>"):]
continue
}
if strings.HasPrefix(original, "<wait5>") {
log.Printf("Special code '<wait5>' found, sleeping 5 seconds")
time.Sleep(5 * time.Second)
original = original[len("<wait5>"):]
continue
}
if strings.HasPrefix(original, "<wait10>") {
log.Printf("Special code '<wait10>' found, sleeping 10 seconds")
time.Sleep(10 * time.Second)
original = original[len("<wait10>"):]
continue
}
for specialCode, specialValue := range special {
if strings.HasPrefix(original, specialCode) {
log.Printf("Special code '%s' found, replacing with: %d", specialCode, specialValue)
keyCode = specialValue
original = original[len(specialCode):]
break
}
}
if keyCode == 0 {
r, size := utf8.DecodeRuneInString(original)
original = original[size:]
keyCode = uint32(r)
keyShift = unicode.IsUpper(r) || strings.ContainsRune(shiftedChars, r)
log.Printf("Sending char '%c', code %d, shift %v", r, keyCode, keyShift)
}
if keyShift {
c.KeyEvent(uint32(KeyLeftShift), true)
}
c.KeyEvent(keyCode, true)
c.KeyEvent(keyCode, false)
if keyShift {
c.KeyEvent(uint32(KeyLeftShift), false)
}
// qemu is picky, so no matter what, wait a small period
time.Sleep(100 * time.Millisecond)
}
}

79
builder/xenserver/step_upload_iso.go Normal file
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package xenserver
import (
"github.com/mitchellh/multistep"
"github.com/mitchellh/packer/packer"
"os"
"strconv"
"os/exec"
"log"
)
type stepUploadIso struct {}
func (self *stepUploadIso) Run(state multistep.StateBag) multistep.StepAction {
client := state.Get("client").(XenAPIClient)
config := state.Get("config").(config)
ui := state.Get("ui").(packer.Ui)
ui.Say("Step: Upload ISO to server")
iso_path := state.Get("iso_path").(string)
// Determine the ISO's filesize
file, err := os.Open(iso_path)
if err != nil {
ui.Error(err.Error())
return multistep.ActionHalt
}
stat, err := file.Stat()
if err != nil {
ui.Error(err.Error())
return multistep.ActionHalt
}
iso_filesize := stat.Size()
// Create a VDI with the write size
sr, err := client.GetSRByUuid(config.SrUuid)
if err != nil {
ui.Error(err.Error())
return multistep.ActionHalt
}
filesize_str := strconv.FormatInt(iso_filesize, 10)
log.Printf("Filesize of the ISO is %d", filesize_str)
vdi, err := sr.CreateVdi("Packer Gen " + stat.Name(), filesize_str)
if err != nil {
ui.Error(err.Error())
return multistep.ActionHalt
}
// Upload the ISO to this VDI
vdi_uuid, _ := vdi.GetUuid()
host_url := "https://" + client.Host
log.Printf("Host URL: %s", host_url)
ui.Say("Uploading ISO to " + vdi_uuid)
out, err := exec.Command("/usr/bin/importdisk.py", host_url, client.Username, client.Password, vdi_uuid, iso_path).CombinedOutput()
log.Printf("Output: %s", out)
if err != nil {
log.Printf("%s", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
// Stash the vdi uuid to be used in preference
state.Put("iso_vdi_uuid", vdi_uuid)
return multistep.ActionContinue
}
func (self *stepUploadIso) Cleanup(state multistep.StateBag) {
}

96
builder/xenserver/step_wait.go Normal file
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package xenserver
import (
"github.com/mitchellh/multistep"
"github.com/mitchellh/packer/packer"
"time"
"reflect"
"github.com/nilshell/xmlrpc"
)
type stepWait struct{}
func (self *stepWait) Run(state multistep.StateBag) multistep.StepAction {
ui := state.Get("ui").(packer.Ui)
client := state.Get("client").(XenAPIClient)
ui.Say("Step: Wait for install to complete.")
//Expect install to be configured to shutdown on completion
instance_id := state.Get("instance_uuid").(string)
instance, _ := client.GetVMByUuid(instance_id)
for {
time.Sleep(30 * time.Second)
ui.Say("Waiting for VM install...")
power_state, _ := instance.GetPowerState()
if power_state == "Halted" {
ui.Say("Install has completed. Moving on.")
break
}
}
//Eject ISO from drive and start VM
vbds, _ := instance.GetVBDs()
for _, vbd := range vbds {
rec, _ := vbd.GetRecord()
// Hack - should encapsulate this in the client really
// This is needed because we can't guarentee the type
// returned by the xmlrpc lib will be string
switch reflect.TypeOf(rec["type"]).Kind() {
case reflect.String:
if rec["type"].(string) == "CD" {
ui.Say("Ejecting CD...")
vbd.Eject()
}
default:
break
}
}
ui.Say("Starting VM...")
instance.Start(false, false)
vm_ip := ""
for i:=0; i < 10; i++ {
ref, _ := instance.GetGuestMetricsRef()
if ref != "OpaqueRef:NULL" {
metrics, _ := instance.GetGuestMetrics()
// todo: xmlrpc shouldn't be needed here
networks := metrics["networks"].(xmlrpc.Struct)
for k, v := range networks {
if k == "0/ip" && v.(string) != "" {
vm_ip = v.(string)
break
}
}
}
// Check if an IP has been returned yet
if vm_ip != "" {
break
}
ui.Say("Wait for IP address...")
time.Sleep(10*time.Second)
}
// Pass on the VM's IP
state.Put("ssh_address", vm_ip)
ui.Say("Found the VM's IP " + vm_ip)
return multistep.ActionContinue
}
func (self *stepWait) Cleanup(state multistep.StateBag) {}