1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
package vagrant
import (
"archive/tar"
"errors"
"fmt"
"io"
"io/ioutil"
"log"
"os"
"path/filepath"
"regexp"
"github.com/hashicorp/packer/packer"
)
type VBoxProvider struct{}
func (p *VBoxProvider) KeepInputArtifact() bool {
return false
}
func (p *VBoxProvider) Process(ui packer.Ui, artifact packer.Artifact, dir string) (vagrantfile string, metadata map[string]interface{}, err error) {
// Create the metadata
metadata = map[string]interface{}{"provider": "virtualbox"}
// Copy all of the original contents into the temporary directory
for _, path := range artifact.Files() {
// We treat OVA files specially, we unpack those into the temporary
// directory so we can get the resulting disk and OVF.
if extension := filepath.Ext(path); extension == ".ova" {
ui.Message(fmt.Sprintf("Unpacking OVA: %s", path))
if err = DecompressOva(dir, path); err != nil {
return
}
} else {
ui.Message(fmt.Sprintf("Copying from artifact: %s", path))
dstPath := filepath.Join(dir, filepath.Base(path))
if err = CopyContents(dstPath, path); err != nil {
return
}
}
}
// Rename the OVF file to box.ovf, as required by Vagrant
ui.Message("Renaming the OVF to box.ovf...")
if err = p.renameOVF(dir); err != nil {
return
}
// Create the Vagrantfile from the template
var baseMacAddress string
baseMacAddress, err = p.findBaseMacAddress(dir)
if err != nil {
return
}
vagrantfile = fmt.Sprintf(vboxVagrantfile, baseMacAddress)
return
}
func (p *VBoxProvider) findOvf(dir string) (string, error) {
log.Println("Looking for OVF in artifact...")
file_matches, err := filepath.Glob(filepath.Join(dir, "*.ovf"))
if err != nil {
return "", err
}
if len(file_matches) > 1 {
return "", errors.New("More than one OVF file in VirtualBox artifact.")
}
if len(file_matches) < 1 {
return "", errors.New("ovf file couldn't be found")
}
return file_matches[0], err
}
func (p *VBoxProvider) renameOVF(dir string) error {
log.Println("Looking for OVF to rename...")
ovf, err := p.findOvf(dir)
if err != nil {
return err
}
log.Printf("Renaming: '%s' => box.ovf", ovf)
return os.Rename(ovf, filepath.Join(dir, "box.ovf"))
}
func (p *VBoxProvider) findBaseMacAddress(dir string) (string, error) {
log.Println("Looking for OVF for base mac address...")
ovf, err := p.findOvf(dir)
if err != nil {
return "", err
}
f, err := os.Open(ovf)
if err != nil {
return "", err
}
defer f.Close()
data, err := ioutil.ReadAll(f)
if err != nil {
return "", err
}
re := regexp.MustCompile(`<Adapter slot="0".+?MACAddress="(.+?)"`)
matches := re.FindSubmatch(data)
if matches == nil {
return "", errors.New("can't find base mac address in OVF")
}
log.Printf("Base mac address: %s", string(matches[1]))
return string(matches[1]), nil
}
// DecompressOva takes an ova file and decompresses it into the target
// directory.
func DecompressOva(dir, src string) error {
log.Printf("Turning ova to dir: %s => %s", src, dir)
srcF, err := os.Open(src)
if err != nil {
return err
}
defer srcF.Close()
tarReader := tar.NewReader(srcF)
for {
hdr, err := tarReader.Next()
if hdr == nil || err == io.EOF {
break
}
if err != nil {
return err
}
// We use the fileinfo to get the file name because we are not
// expecting path information as from the tar header. It's important
// that we not use the path name from the tar header without checking
// for the presence of `..`. If we accidentally allow for that, we can
// open ourselves up to a path traversal vulnerability.
info := hdr.FileInfo()
// Shouldn't be any directories, skip them
if info.IsDir() {
continue
}
// We wrap this in an anonymous function so that the defers
// inside are handled more quickly so we can give up file handles.
err = func() error {
path := filepath.Join(dir, info.Name())
output, err := os.Create(path)
if err != nil {
return err
}
defer output.Close()
os.Chmod(path, info.Mode())
os.Chtimes(path, hdr.AccessTime, hdr.ModTime)
_, err = io.Copy(output, tarReader)
return err
}()
if err != nil {
return err
}
}
return nil
}
var vboxVagrantfile = `
Vagrant.configure("2") do |config|
config.vm.base_mac = "%s"
end
`
|
