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|
package libpod
import (
"os"
"os/exec"
"strings"
"github.com/sirupsen/logrus"
)
type runcGlobalOptions struct {
log string
logFormat string
root string
criu string
systemdCgroup bool
}
type runcExecOptions struct {
consoleSocket string
cwd string
env []string
tty bool
user string
processPath string
detach bool
pidFile string
processLabel string
apparmor string
noNewPrivs bool
capAdd []string
}
func parseGlobalOptionsToArgs(opts runcGlobalOptions) []string {
args := []string{}
if opts.log != "" {
args = append(args, "--log", opts.log)
}
if opts.logFormat != "" {
args = append(args, "--log-format", opts.logFormat)
}
if opts.root != "" {
args = append(args, "--root", opts.root)
}
if opts.criu != "" {
args = append(args, "--criu", opts.criu)
}
if opts.systemdCgroup {
args = append(args, "--systemd-cgroup")
}
return args
}
// RuncExec executes 'runc --options exec --options cmd'
func (r *OCIRuntime) RuncExec(container *Container, command []string, globalOpts runcGlobalOptions, execOpts runcExecOptions) error {
args := []string{}
args = append(args, parseGlobalOptionsToArgs(globalOpts)...)
// Add subcommand
args = append(args, "exec")
// Now add subcommand args
if execOpts.consoleSocket != "" {
args = append(args, "--console-socket", execOpts.consoleSocket)
}
if execOpts.cwd != "" {
args = append(args, "--cwd", execOpts.cwd)
}
if len(execOpts.env) > 0 {
for _, envInput := range execOpts.env {
args = append(args, "--env", envInput)
}
}
if execOpts.tty {
args = append(args, "--tty")
}
if execOpts.user != "" {
args = append(args, "--user", execOpts.user)
}
if execOpts.processPath != "" {
args = append(args, "--process", execOpts.processPath)
}
if execOpts.detach {
args = append(args, "--detach")
}
if execOpts.pidFile != "" {
args = append(args, "--pid-file", execOpts.pidFile)
}
if execOpts.processLabel != "" {
args = append(args, "--process-label", execOpts.processLabel)
}
if execOpts.apparmor != "" {
args = append(args, "--apparmor", execOpts.apparmor)
}
if execOpts.noNewPrivs {
args = append(args, "--no-new-privs")
}
if len(execOpts.capAdd) > 0 {
for _, capAddValue := range execOpts.capAdd {
args = append(args, "--cap", capAddValue)
}
}
// Append Cid
args = append(args, container.ID())
// Append Cmd
args = append(args, command...)
logrus.Debug("Executing runc command: %s %s", r.path, strings.Join(args, " "))
cmd := exec.Command(r.path, args...)
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
cmd.Stdin = os.Stdin
cmd.Start()
err := cmd.Wait()
return err
}
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