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authorOpenShift Merge Robot <openshift-merge-robot@users.noreply.github.com>2018-10-02 17:16:43 -0700
committerGitHub <noreply@github.com>2018-10-02 17:16:43 -0700
commitd5687946f6a0aa14a5326f26ca0ceca68588056f (patch)
tree888c74c05f061cda2f53829969634e31a0d41643 /cmd/podman/runlabel.go
parentb63b1f9cb638db4bc3fdf69a50857b6d04efb6d7 (diff)
parent4f825f2e079c1cf3ec6c9fd2c5378ce2db18d4f0 (diff)
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Merge pull request #1528 from baude/runlabel
Add container runlabel command
Diffstat (limited to 'cmd/podman/runlabel.go')
-rw-r--r--cmd/podman/runlabel.go188
1 files changed, 188 insertions, 0 deletions
diff --git a/cmd/podman/runlabel.go b/cmd/podman/runlabel.go
new file mode 100644
index 000000000..c5dd98ee6
--- /dev/null
+++ b/cmd/podman/runlabel.go
@@ -0,0 +1,188 @@
+package main
+
+import (
+ "fmt"
+ "io"
+ "os"
+ "strings"
+
+ "github.com/containers/libpod/cmd/podman/libpodruntime"
+ "github.com/containers/libpod/cmd/podman/shared"
+ "github.com/containers/libpod/libpod/image"
+ "github.com/containers/libpod/utils"
+ "github.com/pkg/errors"
+ "github.com/sirupsen/logrus"
+ "github.com/urfave/cli"
+)
+
+var (
+ runlabelFlags = []cli.Flag{
+ cli.StringFlag{
+ Name: "authfile",
+ Usage: "Path of the authentication file. Default is ${XDG_RUNTIME_DIR}/containers/auth.json",
+ },
+ cli.BoolFlag{
+ Name: "display",
+ Usage: "preview the command that `podman install` would execute",
+ },
+ cli.StringFlag{
+ Name: "cert-dir",
+ Usage: "`pathname` of a directory containing TLS certificates and keys",
+ },
+ cli.StringFlag{
+ Name: "creds",
+ Usage: "`credentials` (USERNAME:PASSWORD) to use for authenticating to a registry",
+ },
+ cli.StringFlag{
+ Name: "name",
+ Usage: "Assign a name to the container",
+ },
+ cli.StringFlag{
+ Name: "opt1",
+ Usage: "Optional parameter to pass for install",
+ Hidden: true,
+ },
+ cli.StringFlag{
+ Name: "opt2",
+ Usage: "Optional parameter to pass for install",
+ Hidden: true,
+ },
+ cli.StringFlag{
+ Name: "opt3",
+ Usage: "Optional parameter to pass for install",
+ Hidden: true,
+ },
+ cli.BoolFlag{
+ Name: "quiet, q",
+ Usage: "Suppress output information when installing images",
+ },
+ cli.BoolFlag{
+ Name: "pull, p",
+ Usage: "pull the image if it does not exist locally prior to executing the label contents",
+ },
+ cli.StringFlag{
+ Name: "signature-policy",
+ Usage: "`pathname` of signature policy file (not usually used)",
+ },
+ cli.BoolTFlag{
+ Name: "tls-verify",
+ Usage: "require HTTPS and verify certificates when contacting registries (default: true)",
+ },
+ }
+
+ runlabelDescription = `
+Executes a command as described by a container image label.
+`
+ runlabelCommand = cli.Command{
+ Name: "runlabel",
+ Usage: "Execute the command described by an image label",
+ Description: runlabelDescription,
+ Flags: runlabelFlags,
+ Action: runlabelCmd,
+ ArgsUsage: "",
+ OnUsageError: usageErrorHandler,
+ }
+)
+
+// installCmd gets the data from the command line and calls installImage
+// to copy an image from a registry to a local machine
+func runlabelCmd(c *cli.Context) error {
+ var (
+ imageName string
+ stdErr, stdOut io.Writer
+ stdIn io.Reader
+ newImage *image.Image
+ )
+
+ opts := make(map[string]string)
+ runtime, err := libpodruntime.GetRuntime(c)
+ if err != nil {
+ return errors.Wrapf(err, "could not get runtime")
+ }
+ defer runtime.Shutdown(false)
+
+ args := c.Args()
+ if len(args) == 0 {
+ logrus.Errorf("an image name must be specified")
+ return nil
+ }
+ if len(args) < 2 {
+ logrus.Errorf("the runlabel command requires at least 2 arguments")
+ return nil
+ }
+ if err := validateFlags(c, runlabelFlags); err != nil {
+ return err
+ }
+ if c.Bool("display") && c.Bool("quiet") {
+ return errors.Errorf("the display and quiet flags cannot be used together.")
+ }
+
+ pull := c.Bool("pull")
+ label := args[0]
+
+ runlabelImage := args[1]
+
+ if c.IsSet("opts1") {
+ opts["opts1"] = c.String("opts1")
+ }
+ if c.IsSet("opts2") {
+ opts["opts2"] = c.String("opts2")
+ }
+ if c.IsSet("opts3") {
+ opts["opts3"] = c.String("opts3")
+ }
+
+ ctx := getContext()
+ rtc := runtime.GetConfig()
+
+ stdErr = os.Stderr
+ stdOut = os.Stdout
+ stdIn = os.Stdin
+
+ if c.Bool("quiet") {
+ stdErr = nil
+ stdOut = nil
+ stdIn = nil
+ }
+
+ if pull {
+ newImage, err = runtime.ImageRuntime().New(ctx, runlabelImage, rtc.SignaturePolicyPath, "", stdOut, nil, image.SigningOptions{}, false, false)
+ } else {
+ newImage, err = runtime.ImageRuntime().NewFromLocal(runlabelImage)
+ }
+ if err != nil {
+ return errors.Wrapf(err, "unable to find image")
+ }
+
+ if len(newImage.Names()) < 1 {
+ imageName = newImage.ID()
+ } else {
+ imageName = newImage.Names()[0]
+ }
+
+ runLabel, err := newImage.GetLabel(ctx, label)
+ if err != nil {
+ return err
+ }
+
+ // If no label to execute, we return
+ if runLabel == "" {
+ return nil
+ }
+
+ // The user provided extra arguments that need to be tacked onto the label's command
+ if len(args) > 2 {
+ runLabel = fmt.Sprintf("%s %s", runLabel, strings.Join(args[2:], " "))
+ }
+
+ cmd := shared.GenerateCommand(runLabel, imageName, c.String("name"))
+ env := shared.GenerateRunEnvironment(c.String("name"), imageName, opts)
+
+ if !c.Bool("quiet") {
+ fmt.Printf("Command: %s\n", strings.Join(cmd, " "))
+ if c.Bool("display") {
+ return nil
+ }
+ }
+ return utils.ExecCmdWithStdStreams(stdIn, stdOut, stdErr, env, cmd[0], cmd[1:]...)
+}