func (ctx *RktRunCtx) cleanupChildren() error {
for _, child := range ctx.children {
if child.Cmd.ProcessState.Exited() {
logger.Logf("Child %q already exited", child.Cmd.Path)
continue
}
logger.Logf("Shutting down child %q", child.Cmd.Path)
if err := child.Cmd.Process.Kill(); err != nil {
return err
}
if _, err := child.Cmd.Process.Wait(); err != nil {
return err
}
}
return nil
}
func HTTPServe(addr string, timeout int) error {
hostname, err := os.Hostname()
if err != nil {
panic(err)
}
originalListener, err := net.Listen("tcp4", addr)
if err != nil {
panic(err)
}
sl, err := stoppableListener.New(originalListener)
if err != nil {
panic(err)
}
c := make(chan string)
go func() {
logger.Logf("%v: serving on %v\n", hostname, addr)
// Wait for either timeout or connect from client
select {
case <-time.After(time.Duration(timeout) * time.Second):
{
logger.Logf("%v: Serve timed out after %v seconds\n", hostname, timeout)
}
case client := (<-c):
{
logger.Logf("%v: Serve got a connection from %v\n", hostname, client)
}
}
sl.Stop()
}()
serveMux := http.NewServeMux()
serveMux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
logger.Logf("%v: Serve got a connection from %v\n", hostname, r.RemoteAddr)
fmt.Fprintf(w, "%v", hostname)
c <- r.RemoteAddr
})
err = http.Serve(sl, serveMux)
if err != nil && err.Error() == "Listener stopped" {
err = nil
}
return err
}
func HTTPGet(addr string) (string, error) {
logger.Logf("Connecting to %v", addr)
res, err := http.Get(fmt.Sprintf("%v", addr))
if err != nil {
return "", err
}
text, err := ioutil.ReadAll(res.Body)
res.Body.Close()
if err != nil {
return "", err
}
return string(text), nil
}
func (ctx *RktRunCtx) Cleanup() {
if ctx.mds != nil {
ctx.mds.Process.Kill()
ctx.mds.Wait()
os.Remove("/run/rkt/metadata-svc.sock")
}
if err := ctx.cleanupChildren(); err != nil {
logger.Logf("Error during child cleanup: %v", err)
}
ctx.RunGC()
for _, d := range ctx.directories {
d.cleanup()
}
}