-
Notifications
You must be signed in to change notification settings - Fork 39
/
package.go
122 lines (96 loc) · 3.2 KB
/
package.go
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
package cmd
import (
"fmt"
"os"
"github.com/cppforlife/go-cli-ui/ui"
regname "github.com/google/go-containerregistry/pkg/name"
cmdcore "github.com/k14s/kbld/pkg/kbld/cmd/core"
ctlconf "github.com/k14s/kbld/pkg/kbld/config"
ctlimg "github.com/k14s/kbld/pkg/kbld/image"
regtarball "github.com/k14s/kbld/pkg/kbld/imagetarball"
ctlres "github.com/k14s/kbld/pkg/kbld/resources"
"github.com/spf13/cobra"
)
type PackageOptions struct {
ui ui.UI
depsFactory cmdcore.DepsFactory
FileFlags FileFlags
RegistryFlags RegistryFlags
OutputPath string
}
var _ regtarball.TarDescriptorsMetadata = ctlimg.Registry{}
func NewPackageOptions(ui ui.UI, depsFactory cmdcore.DepsFactory) *PackageOptions {
return &PackageOptions{ui: ui, depsFactory: depsFactory}
}
func NewPackageCmd(o *PackageOptions, flagsFactory cmdcore.FlagsFactory) *cobra.Command {
cmd := &cobra.Command{
Use: "package",
Aliases: []string{"pkg"},
Short: "Package configuration and images into tarball",
RunE: func(_ *cobra.Command, _ []string) error { return o.Run() },
}
o.FileFlags.Set(cmd)
o.RegistryFlags.Set(cmd)
cmd.Flags().StringVarP(&o.OutputPath, "output", "o", "", "Output tarball path")
return cmd
}
func (o *PackageOptions) Run() error {
if len(o.OutputPath) == 0 {
return fmt.Errorf("Expected 'output' flag to be non-empty")
}
logger := ctlimg.NewLogger(os.Stderr)
prefixedLogger := logger.NewPrefixedWriter("package | ")
rs, conf, err := o.FileFlags.ResourcesAndConfig()
if err != nil {
return err
}
foundImages, err := o.findImages(rs, conf, logger)
if err != nil {
return err
}
return o.exportImages(foundImages, prefixedLogger)
}
func (o *PackageOptions) findImages(allRs []ctlres.Resource,
conf ctlconf.Conf, logger ctlimg.Logger) (map[string]struct{}, error) {
foundImages := map[string]struct{}{}
for _, res := range allRs {
imageKVs := ImageKVs{res.DeepCopyRaw(), conf.ImageKeys()}
imageKVs.Visit(func(val interface{}) (interface{}, bool) {
if img, ok := val.(string); ok {
foundImages[img] = struct{}{}
}
return nil, false
})
}
for img, _ := range foundImages {
_, err := regname.NewDigest(img)
if err != nil {
return nil, fmt.Errorf("Expected image '%s' to be in digest form (i.e. image@digest)", img)
}
}
return foundImages, nil
}
func (o *PackageOptions) exportImages(imgRefsToExport map[string]struct{}, logger *ctlimg.LoggerPrefixWriter) error {
logger.WriteStr("exporting %d images...\n", len(imgRefsToExport))
defer func() { logger.WriteStr("exported %d images\n", len(imgRefsToExport)) }()
var refs []regname.Reference
for imgRef, _ := range imgRefsToExport {
// Validate strictly as these refs were already resolved
ref, err := regname.NewDigest(imgRef, regname.StrictValidation)
if err != nil {
return err
}
logger.Write([]byte(fmt.Sprintf("will export %s\n", imgRef)))
refs = append(refs, ref)
}
outputFile, err := os.Create(o.OutputPath)
if err != nil {
return err
}
defer outputFile.Close()
tds, err := regtarball.NewTarDescriptors(refs, ctlimg.NewRegistry(o.RegistryFlags.AsRegistryOpts()))
if err != nil {
return fmt.Errorf("Collecting packaging metadata: %s", err)
}
return regtarball.NewTarWriter(tds, outputFile).Write()
}