Paul Bellamy
f55655216f
Avoids problems when container user is non-root. Added a test for this and the --no-rewrite-hosts flag.
54 lines
775 B
Go
54 lines
775 B
Go
package main
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import (
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"errors"
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"fmt"
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"os"
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"os/exec"
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"os/signal"
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"syscall"
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weavenet "github.com/weaveworks/weave/net"
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)
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var (
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ErrNoCommandSpecified = errors.New("No command specified")
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)
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func main() {
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var (
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args = os.Args[1:]
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notInExec = true
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)
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if len(args) > 0 && args[0] == "-s" {
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notInExec = false
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args = args[1:]
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}
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if notInExec {
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usr2 := make(chan os.Signal)
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signal.Notify(usr2, syscall.SIGUSR2)
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<-usr2
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}
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_, err := weavenet.EnsureInterface("ethwe", -1)
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checkErr(err)
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if len(args) == 0 {
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checkErr(ErrNoCommandSpecified)
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}
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binary, err := exec.LookPath(args[0])
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checkErr(err)
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checkErr(syscall.Exec(binary, args, os.Environ()))
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}
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func checkErr(err error) {
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if err != nil {
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fmt.Fprintln(os.Stderr, err)
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os.Exit(1)
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}
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}
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