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72 lines
1.9 KiB
Go
72 lines
1.9 KiB
Go
package sysinit
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import (
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"flag"
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"fmt"
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"log"
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"os"
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"runtime"
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"github.com/docker/docker/daemon/execdriver"
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_ "github.com/docker/docker/daemon/execdriver/lxc"
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_ "github.com/docker/docker/daemon/execdriver/native"
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)
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func executeProgram(args *execdriver.InitArgs) error {
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dockerInitFct, err := execdriver.GetInitFunc(args.Driver)
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if err != nil {
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panic(err)
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}
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return dockerInitFct(args)
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}
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// Sys Init code
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// This code is run INSIDE the container and is responsible for setting
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// up the environment before running the actual process
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func SysInit() {
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// The very first thing that we should do is lock the thread so that other
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// system level options will work and not have issues, i.e. setns
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runtime.LockOSThread()
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if len(os.Args) <= 1 {
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fmt.Println("You should not invoke dockerinit manually")
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os.Exit(1)
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}
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var (
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// Get cmdline arguments
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user = flag.String("u", "", "username or uid")
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gateway = flag.String("g", "", "gateway address")
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ip = flag.String("i", "", "ip address")
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workDir = flag.String("w", "", "workdir")
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privileged = flag.Bool("privileged", false, "privileged mode")
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mtu = flag.Int("mtu", 1500, "interface mtu")
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driver = flag.String("driver", "", "exec driver")
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pipe = flag.Int("pipe", 0, "sync pipe fd")
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console = flag.String("console", "", "console (pty slave) path")
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root = flag.String("root", ".", "root path for configuration files")
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capAdd = flag.String("cap-add", "", "capabilities to add")
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capDrop = flag.String("cap-drop", "", "capabilities to drop")
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)
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flag.Parse()
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args := &execdriver.InitArgs{
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User: *user,
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Gateway: *gateway,
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Ip: *ip,
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WorkDir: *workDir,
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Privileged: *privileged,
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Args: flag.Args(),
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Mtu: *mtu,
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Driver: *driver,
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Console: *console,
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Pipe: *pipe,
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Root: *root,
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CapAdd: *capAdd,
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CapDrop: *capDrop,
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}
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if err := executeProgram(args); err != nil {
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log.Fatal(err)
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}
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}
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