6daf56799f
Remove logging for now because it is complicating things Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
36 lines
1.1 KiB
Go
36 lines
1.1 KiB
Go
package nsinit
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import (
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"fmt"
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"github.com/dotcloud/docker/pkg/libcontainer"
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"os"
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"os/exec"
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"syscall"
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)
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// CommandFactory takes the container's configuration and options passed by the
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// parent processes and creates an *exec.Cmd that will be used to fork/exec the
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// namespaced init process
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type CommandFactory interface {
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Create(container *libcontainer.Container, console string, syncFd uintptr, args []string) *exec.Cmd
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}
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type DefaultCommandFactory struct{}
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// Create will return an exec.Cmd with the Cloneflags set to the proper namespaces
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// defined on the container's configuration and use the current binary as the init with the
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// args provided
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func (c *DefaultCommandFactory) Create(container *libcontainer.Container, console string, pipe uintptr, args []string) *exec.Cmd {
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// get our binary name so we can always reexec ourself
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name := os.Args[0]
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command := exec.Command(name, append([]string{
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"-console", console,
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"-pipe", fmt.Sprint(pipe),
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"init"}, args...)...)
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command.SysProcAttr = &syscall.SysProcAttr{
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Cloneflags: uintptr(GetNamespaceFlags(container.Namespaces)),
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}
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command.Env = container.Env
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return command
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}
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