mirror of
https://github.com/opencontainers/runc.git
synced 2026-07-11 06:03:57 +08:00
Michael Crosby
70367b2cf3
This also changes the functionality of the default exec in to just be an existing func that is called than handles the implementation to exec a user user's process inside the container. This implements this functionallity in nsinit but is a base for how we will be handling these types of features inside docker. Signed-off-by: Michael Crosby <michael@docker.com>
59 lines
1.1 KiB
Go
59 lines
1.1 KiB
Go
package main
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import (
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"fmt"
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"log"
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"os"
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"text/tabwriter"
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"github.com/codegangsta/cli"
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"github.com/docker/libcontainer"
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)
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var execFuncCommand = cli.Command{
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Name: "func",
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Usage: "execute a registered function inside an existing container",
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Action: execFuncAction,
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Flags: []cli.Flag{
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cli.BoolFlag{Name: "list", Usage: "list all registered functions"},
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cli.StringFlag{Name: "func", Usage: "function name to exec inside a container"},
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},
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}
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func execFuncAction(context *cli.Context) {
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if context.Bool("list") {
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w := tabwriter.NewWriter(os.Stdout, 10, 1, 3, ' ', 0)
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fmt.Fprint(w, "NAME\tUSAGE\n")
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for k, f := range argvs {
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fmt.Fprintf(w, "%s\t%s\n", k, f.Usage)
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}
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w.Flush()
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return
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}
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var exitCode int
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config, err := loadContainer()
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if err != nil {
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log.Fatal(err)
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}
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// FIXME: remove tty from container config, this should be per process
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config.Tty = false
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state, err := libcontainer.GetState(dataPath)
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if err != nil {
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log.Fatalf("unable to read state.json: %s", err)
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}
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exitCode, err = startInExistingContainer(config, state, context.String("func"), context)
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if err != nil {
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log.Fatal(err)
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}
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os.Exit(exitCode)
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}
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