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When locating an image for pulling, inspection, or pushing, if we're given an image name that doesn't include a domain/registry, try building a set of candidate names using the configured registries as domains, and then pull/inspect/push using the first of those names that works. If a name that we're given corresponds to a prefix of the ID of a local image, skip completion and use the ID directly instead. Signed-off-by: Nalin Dahyabhai <nalin@redhat.com> Closes: #360 Approved by: rhatdan
117 lines
2.7 KiB
Go
117 lines
2.7 KiB
Go
package main
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import (
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"fmt"
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"os"
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"github.com/pkg/errors"
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"github.com/projectatomic/buildah"
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"github.com/urfave/cli"
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)
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var (
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fromFlags = []cli.Flag{
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cli.StringFlag{
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Name: "authfile",
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Usage: "path of the authentication file. Default is ${XDG_RUNTIME_DIR}/containers/auth.json",
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},
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cli.StringFlag{
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Name: "cert-dir",
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Value: "",
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Usage: "use certificates at the specified path to access the registry",
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},
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cli.StringFlag{
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Name: "creds",
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Value: "",
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Usage: "use `username[:password]` for accessing the registry",
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},
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cli.StringFlag{
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Name: "name",
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Usage: "`name` for the working container",
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},
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cli.BoolTFlag{
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Name: "pull",
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Usage: "pull the image if not present",
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},
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cli.BoolFlag{
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Name: "pull-always",
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Usage: "pull the image even if named image is present in store (supersedes pull option)",
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},
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cli.BoolFlag{
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Name: "quiet, q",
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Usage: "don't output progress information when pulling images",
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},
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cli.StringFlag{
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Name: "signature-policy",
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Usage: "`pathname` of signature policy file (not usually used)",
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},
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cli.BoolTFlag{
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Name: "tls-verify",
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Usage: "require HTTPS and verify certificates when accessing the registry",
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},
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}
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fromDescription = "Creates a new working container, either from scratch or using a specified\n image as a starting point"
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fromCommand = cli.Command{
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Name: "from",
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Usage: "Create a working container based on an image",
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Description: fromDescription,
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Flags: fromFlags,
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Action: fromCmd,
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ArgsUsage: "IMAGE",
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}
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)
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func fromCmd(c *cli.Context) error {
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args := c.Args()
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if len(args) == 0 {
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return errors.Errorf("an image name (or \"scratch\") must be specified")
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}
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if len(args) > 1 {
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return errors.Errorf("too many arguments specified")
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}
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if err := validateFlags(c, fromFlags); err != nil {
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return err
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}
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systemContext, err := systemContextFromOptions(c)
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if err != nil {
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return errors.Wrapf(err, "error building system context")
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}
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pullPolicy := buildah.PullNever
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if c.BoolT("pull") {
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pullPolicy = buildah.PullIfMissing
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}
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if c.Bool("pull-always") {
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pullPolicy = buildah.PullAlways
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}
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signaturePolicy := c.String("signature-policy")
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store, err := getStore(c)
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if err != nil {
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return err
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}
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options := buildah.BuilderOptions{
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FromImage: args[0],
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Container: c.String("name"),
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PullPolicy: pullPolicy,
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SignaturePolicyPath: signaturePolicy,
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SystemContext: systemContext,
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DefaultMountsFilePath: c.GlobalString("default-mounts-file"),
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}
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if !c.Bool("quiet") {
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options.ReportWriter = os.Stderr
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}
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builder, err := buildah.NewBuilder(store, options)
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if err != nil {
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return err
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}
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fmt.Printf("%s\n", builder.Container)
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return builder.Save()
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}
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