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
180
181
182
183
184
185
186
187
188
189
190
191
192
|
package main
import (
"os"
"path/filepath"
"strings"
"github.com/opencontainers/runtime-spec/specs-go"
"github.com/pkg/errors"
"github.com/projectatomic/buildah"
"github.com/projectatomic/buildah/imagebuildah"
buildahcli "github.com/projectatomic/buildah/pkg/cli"
"github.com/projectatomic/buildah/pkg/parse"
"github.com/projectatomic/libpod/cmd/podman/libpodruntime"
"github.com/sirupsen/logrus"
"github.com/urfave/cli"
)
var (
buildDescription = "podman build launches the Buildah command to build an OCI Image. Buildah must be installed for this command to work."
buildCommand = cli.Command{
Name: "build",
Usage: "Build an image using instructions in a Dockerfile",
Description: buildDescription,
Flags: append(buildahcli.BudFlags, buildahcli.FromAndBudFlags...),
Action: buildCmd,
ArgsUsage: "CONTEXT-DIRECTORY | URL",
SkipArgReorder: true,
}
)
func buildCmd(c *cli.Context) error {
// The following was taken directly from projectatomic/buildah/cmd/bud.go
// TODO Find a away to vendor more of this in rather than copy from bud
var namespace []buildah.NamespaceOption
output := ""
tags := []string{}
if c.IsSet("tag") || c.IsSet("t") {
tags = c.StringSlice("tag")
if len(tags) > 0 {
output = tags[0]
tags = tags[1:]
}
}
pullPolicy := imagebuildah.PullNever
if c.BoolT("pull") {
pullPolicy = imagebuildah.PullIfMissing
}
if c.Bool("pull-always") {
pullPolicy = imagebuildah.PullAlways
}
args := make(map[string]string)
if c.IsSet("build-arg") {
for _, arg := range c.StringSlice("build-arg") {
av := strings.SplitN(arg, "=", 2)
if len(av) > 1 {
args[av[0]] = av[1]
} else {
delete(args, av[0])
}
}
}
dockerfiles := c.StringSlice("file")
format := "oci"
if c.IsSet("format") {
format = strings.ToLower(c.String("format"))
}
if strings.HasPrefix(format, "oci") {
format = imagebuildah.OCIv1ImageFormat
} else if strings.HasPrefix(format, "docker") {
format = imagebuildah.Dockerv2ImageFormat
} else {
return errors.Errorf("unrecognized image type %q", format)
}
contextDir := ""
cliArgs := c.Args()
if len(cliArgs) > 0 {
// The context directory could be a URL. Try to handle that.
tempDir, subDir, err := imagebuildah.TempDirForURL("", "buildah", cliArgs[0])
if err != nil {
return errors.Wrapf(err, "error prepping temporary context directory")
}
if tempDir != "" {
// We had to download it to a temporary directory.
// Delete it later.
defer func() {
if err = os.RemoveAll(tempDir); err != nil {
logrus.Errorf("error removing temporary directory %q: %v", contextDir, err)
}
}()
contextDir = filepath.Join(tempDir, subDir)
} else {
// Nope, it was local. Use it as is.
absDir, err := filepath.Abs(cliArgs[0])
if err != nil {
return errors.Wrapf(err, "error determining path to directory %q", cliArgs[0])
}
contextDir = absDir
}
cliArgs = cliArgs.Tail()
} else {
// No context directory or URL was specified. Try to use the
// home of the first locally-available Dockerfile.
for i := range dockerfiles {
if strings.HasPrefix(dockerfiles[i], "http://") ||
strings.HasPrefix(dockerfiles[i], "https://") ||
strings.HasPrefix(dockerfiles[i], "git://") ||
strings.HasPrefix(dockerfiles[i], "github.com/") {
continue
}
absFile, err := filepath.Abs(dockerfiles[i])
if err != nil {
return errors.Wrapf(err, "error determining path to file %q", dockerfiles[i])
}
contextDir = filepath.Dir(absFile)
dockerfiles[i], err = filepath.Rel(contextDir, absFile)
if err != nil {
return errors.Wrapf(err, "error determining path to file %q", dockerfiles[i])
}
break
}
}
if contextDir == "" {
return errors.Errorf("no context directory specified, and no dockerfile specified")
}
if len(dockerfiles) == 0 {
dockerfiles = append(dockerfiles, filepath.Join(contextDir, "Dockerfile"))
}
if err := parse.ValidateFlags(c, buildahcli.BudFlags); err != nil {
return err
}
runtimeFlags := []string{}
for _, arg := range c.StringSlice("runtime-flag") {
runtimeFlags = append(runtimeFlags, "--"+arg)
}
// end from buildah
runtime, err := libpodruntime.GetRuntime(c)
if err != nil {
return errors.Wrapf(err, "could not get runtime")
}
defer runtime.Shutdown(false)
systemContext, err := parse.SystemContextFromOptions(c)
if err != nil {
return errors.Wrapf(err, "error building system context")
}
commonOpts, err := parse.ParseCommonBuildOptions(c)
if err != nil {
return err
}
hostNetwork := buildah.NamespaceOption{
Name: specs.NetworkNamespace,
Host: true,
}
namespace = append(namespace, hostNetwork)
options := imagebuildah.BuildOptions{
ContextDirectory: contextDir,
PullPolicy: pullPolicy,
Compression: imagebuildah.Gzip,
Quiet: c.Bool("quiet"),
SignaturePolicyPath: c.String("signature-policy"),
Args: args,
Output: output,
AdditionalTags: tags,
Runtime: c.String("runtime"),
RuntimeArgs: runtimeFlags,
OutputFormat: format,
SystemContext: systemContext,
CommonBuildOpts: commonOpts,
DefaultMountsFilePath: c.GlobalString("default-mounts-file"),
IIDFile: c.String("iidfile"),
Squash: c.Bool("squash"),
Labels: c.StringSlice("label"),
Annotations: c.StringSlice("annotation"),
NamespaceOptions: namespace,
}
if !c.Bool("quiet") {
options.ReportWriter = os.Stderr
}
return runtime.Build(getContext(), options, dockerfiles...)
}
|
