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package main
import (
"os"
"os/exec"
"strconv"
"github.com/pkg/errors"
"github.com/urfave/cli"
)
var (
buildFlags = []cli.Flag{
cli.StringFlag{
Name: "authfile",
Usage: "path of the authentication file. Default is ${XDG_RUNTIME_DIR}/containers/auth.json",
},
cli.StringSliceFlag{
Name: "build-arg",
Usage: "`argument=value` to supply to the builder",
},
cli.StringFlag{
Name: "cert-dir",
Value: "",
Usage: "use certificates at the specified path to access the registry",
},
cli.StringFlag{
Name: "creds",
Value: "",
Usage: "use `[username[:password]]` for accessing the registry",
},
cli.StringSliceFlag{
Name: "file, f",
Usage: "`pathname or URL` of a Dockerfile",
},
cli.StringFlag{
Name: "format",
Usage: "`format` of the built image's manifest and metadata",
},
cli.BoolFlag{
Name: "pull-always",
Usage: "pull the image, even if a version is present",
},
cli.BoolFlag{
Name: "quiet, q",
Usage: "refrain from announcing build instructions and image read/write progress",
},
cli.StringFlag{
Name: "runtime",
Usage: "`path` to an alternate runtime",
},
cli.StringSliceFlag{
Name: "runtime-flag",
Usage: "add global flags for the container runtime",
},
cli.StringFlag{
Name: "signature-policy",
Usage: "`pathname` of signature policy file (not usually used)",
},
cli.StringSliceFlag{
Name: "tag, t",
Usage: "`tag` to apply to the built image",
},
cli.BoolFlag{
Name: "tls-verify",
Usage: "require HTTPS and verify certificates when accessing the registry",
},
}
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",
Aliases: []string{"build"},
Usage: "Build an image using instructions in a Dockerfile",
Description: buildDescription,
Flags: buildFlags,
Action: buildCmd,
ArgsUsage: "CONTEXT-DIRECTORY | URL",
}
)
func buildCmd(c *cli.Context) error {
budCmdArgs := []string{"bud"}
if c.IsSet("authfile") {
budCmdArgs = append(budCmdArgs, "--authfile", c.String("authfile"))
}
for _, buildArg := range c.StringSlice("build-arg") {
budCmdArgs = append(budCmdArgs, "--build-arg", buildArg)
}
if c.IsSet("cert-dir") {
budCmdArgs = append(budCmdArgs, "--cert-dir", c.String("cert-dir"))
}
if c.IsSet("creds") {
budCmdArgs = append(budCmdArgs, "--creds", c.String("creds"))
}
for _, fileName := range c.StringSlice("file") {
budCmdArgs = append(budCmdArgs, "--file", fileName)
}
if c.IsSet("format") {
budCmdArgs = append(budCmdArgs, "--format", c.String("format"))
}
if c.IsSet("pull-always") {
budCmdArgs = append(budCmdArgs, "--pull-always")
}
if c.IsSet("quiet") {
quietParam := "--quiet=" + strconv.FormatBool(c.Bool("quiet"))
budCmdArgs = append(budCmdArgs, quietParam)
}
if c.IsSet("runtime") {
budCmdArgs = append(budCmdArgs, "--runtime", c.String("runtime"))
}
for _, runtimeArg := range c.StringSlice("runtime-flag") {
budCmdArgs = append(budCmdArgs, "--runtime-flag", runtimeArg)
}
if c.IsSet("signature-policy") {
budCmdArgs = append(budCmdArgs, "--signature-policy", c.String("signature-policy"))
}
for _, tagArg := range c.StringSlice("tag") {
budCmdArgs = append(budCmdArgs, "--tag", tagArg)
}
if c.IsSet("tls-verify") {
tlsParam := "--tls-verify=" + strconv.FormatBool(c.Bool("tls-verify"))
budCmdArgs = append(budCmdArgs, tlsParam)
}
if len(c.Args()) > 0 {
budCmdArgs = append(budCmdArgs, c.Args()...)
}
buildah := "buildah"
if _, err := exec.LookPath(buildah); err != nil {
return errors.Wrapf(err, "buildah not found in PATH")
}
if _, err := exec.Command(buildah).Output(); err != nil {
return errors.Wrapf(err, "buildah is not operational on this server")
}
cmd := exec.Command(buildah, budCmdArgs...)
cmd.Stdin = os.Stdin
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
if err := cmd.Run(); err != nil {
return errors.Wrapf(err, "error running the buildah build-using-dockerfile (bud) command")
}
return nil
}
|
